1. The study measured the respiratory rates, body temperatures, and behaviors of captive bearded dragons (Pogona vitticeps) during periods with and without handling.
2. Respiratory rates increased significantly after handling, but returned to baseline levels once handling stopped. Body temperature increases respiration at similar rates whether the lizards were handled or not.
3. The results suggest that handling induces stress in bearded dragons, shown by elevated respiratory rates, even if the lizards appear habituated to frequent human contact. This has implications for the welfare of reptiles in captive breeding and education programs that involve frequent handling.
Thermoregulation responses of broiler chickens to humiditybabuvet
This document summarizes two experiments that investigated the effect of relative humidity (RH) at 35%, 60%, and 85% on thermoregulation responses in 4-week old broiler chickens exposed to high (35°C) and mild (30°C) ambient temperatures. The experiments measured rectal temperature (RT), plumage temperature at back (PBAT), and skin temperature at breast (SBRT) at various time points over 24 hours of exposure. The results showed that RH had a significant effect on RT at 35°C but not 30°C, and peripheral temperatures were significantly affected by RH but responded differently depending on ambient temperature. High RH above 60% impaired heat transmission from core to periphery at 35°
The study aims to investigate whether the duration of sickness behavior is different in male rats treated with aspirin compared to those without aspirin treatment after inducing fever. Male rats will be injected with lipopolysaccharide to induce fever and divided into two groups - one treated with aspirin and the other with a placebo. Their food consumption, motor activity, and sleep will be measured over four days to analyze the duration of sickness behavior in each group. The researchers hypothesize that sickness behavior duration will be significantly different between the two groups.
This chapter discusses isothermal titration calorimetry (ITC), which can be used to characterize binding interactions and enzyme kinetics. ITC directly measures heat effects to determine thermodynamic parameters of binding like binding constants and rates of enzymatic reactions. The chapter reviews experimental design, data analysis, and interpretation of results for both binding and kinetic experiments. It also provides background on calorimetry theory and the development and improvements of ITC instrumentation.
Effects of Noise Stress on Body Weight and Adrenal Gland Weight of Male Wista...BRNSS Publication Hub
The present study was designed to investigate the effects of varying intensities of noise stress onto the body and adrenal gland weight (absolute) of 17 weeks old (291–296) gram (g) Wistar rat. Animals were exposed to varying intensity of noise, i.e., 60 dB (Decibel), 80 dB, 100 dB, 120 dB, and 140 dB for 1 h (h)/day for 30 days. The dose of different noise intensities was delivered through a special fabricated noise chamber which had provided all daily needs of animal-like oxygen, food, and water. Food and water consumption behavior was recorded on 1st, 14th, and 29th days and body weight change recorded on 1st, 15th, and 30th days after the exposure of noise stress. Absolute adrenal glands weight was recorded on the 30th day. The results of the present study showed that the food, water consumption behavior, and body weight (g) of the experimental group EG1 (60 dB), EG2 (80 dB), EG3 (100 dB), EG4 (120 dB), and EG5 (140 dB) were found to be significantly (P < 0.001) decreased during 1st–14th days and during 15th–30th days a recovery which were observed in food, water consumption, and in body weight of the EG1 (60 dB), EG2 (80 dB), and EG3 (100 dB). A percentage (%) decrease was found, i.e., 0.76, 0.37, 3.87, 25.89, and 30.06% in body weight of EG1 (60 dB), EG2 (80 dB), EG3 (100 dB), EG4 (120 dB), and EG5 (140 dB) experimental groups, respectively.
This document summarizes a student assignment on using a data logger to measure the energy content of different foods. It includes:
- An introduction to data loggers and their uses in environmental monitoring.
- An experiment where students measured the temperature change of water heated by burning small amounts of different foods (biscuits, Koko Crunch cereal, candlenuts), to calculate the energy released. Candlenuts had the highest average energy content.
- A discussion of heat energy transfer and the relationship between energy absorbed during burning and final water temperature.
- An explanation of how understanding energy content can help people count daily calorie intake and maintain a balanced diet for health.
1) Core body temperature, skin temperatures, and oral temperature all significantly increased from baseline levels during passive heat stress induced by submerging subjects' legs in a heat bath and insulating them.
2) During an extra test where one hand was placed in an ice bath while heating continued, forehead skin temperature further significantly increased.
3) No other significant changes were observed in temperatures during the extra test.
Tutorial ini menjelaskan cara membuat efek dispersal atau efek serpihan pada foto menggunakan Photoshop. Tahapannya meliputi menggandakan layer foto, menghapus bagian tepinya dengan efek bercak, melelehkan bagian yang dihapus menggunakan liquify, menambahkan layer mask hitam, dan menyapukan brush efek bercak untuk menyelesaikan hasil akhir.
Sarah Lewis argues that near wins, or close calls, should be embraced rather than seen as failures. While setbacks are disappointing, near wins demonstrate progress and can motivate continued effort. Reframing near wins in a positive light may help people and teams persist through challenges and improve performance over time.
Thermoregulation responses of broiler chickens to humiditybabuvet
This document summarizes two experiments that investigated the effect of relative humidity (RH) at 35%, 60%, and 85% on thermoregulation responses in 4-week old broiler chickens exposed to high (35°C) and mild (30°C) ambient temperatures. The experiments measured rectal temperature (RT), plumage temperature at back (PBAT), and skin temperature at breast (SBRT) at various time points over 24 hours of exposure. The results showed that RH had a significant effect on RT at 35°C but not 30°C, and peripheral temperatures were significantly affected by RH but responded differently depending on ambient temperature. High RH above 60% impaired heat transmission from core to periphery at 35°
The study aims to investigate whether the duration of sickness behavior is different in male rats treated with aspirin compared to those without aspirin treatment after inducing fever. Male rats will be injected with lipopolysaccharide to induce fever and divided into two groups - one treated with aspirin and the other with a placebo. Their food consumption, motor activity, and sleep will be measured over four days to analyze the duration of sickness behavior in each group. The researchers hypothesize that sickness behavior duration will be significantly different between the two groups.
This chapter discusses isothermal titration calorimetry (ITC), which can be used to characterize binding interactions and enzyme kinetics. ITC directly measures heat effects to determine thermodynamic parameters of binding like binding constants and rates of enzymatic reactions. The chapter reviews experimental design, data analysis, and interpretation of results for both binding and kinetic experiments. It also provides background on calorimetry theory and the development and improvements of ITC instrumentation.
Effects of Noise Stress on Body Weight and Adrenal Gland Weight of Male Wista...BRNSS Publication Hub
The present study was designed to investigate the effects of varying intensities of noise stress onto the body and adrenal gland weight (absolute) of 17 weeks old (291–296) gram (g) Wistar rat. Animals were exposed to varying intensity of noise, i.e., 60 dB (Decibel), 80 dB, 100 dB, 120 dB, and 140 dB for 1 h (h)/day for 30 days. The dose of different noise intensities was delivered through a special fabricated noise chamber which had provided all daily needs of animal-like oxygen, food, and water. Food and water consumption behavior was recorded on 1st, 14th, and 29th days and body weight change recorded on 1st, 15th, and 30th days after the exposure of noise stress. Absolute adrenal glands weight was recorded on the 30th day. The results of the present study showed that the food, water consumption behavior, and body weight (g) of the experimental group EG1 (60 dB), EG2 (80 dB), EG3 (100 dB), EG4 (120 dB), and EG5 (140 dB) were found to be significantly (P < 0.001) decreased during 1st–14th days and during 15th–30th days a recovery which were observed in food, water consumption, and in body weight of the EG1 (60 dB), EG2 (80 dB), and EG3 (100 dB). A percentage (%) decrease was found, i.e., 0.76, 0.37, 3.87, 25.89, and 30.06% in body weight of EG1 (60 dB), EG2 (80 dB), EG3 (100 dB), EG4 (120 dB), and EG5 (140 dB) experimental groups, respectively.
This document summarizes a student assignment on using a data logger to measure the energy content of different foods. It includes:
- An introduction to data loggers and their uses in environmental monitoring.
- An experiment where students measured the temperature change of water heated by burning small amounts of different foods (biscuits, Koko Crunch cereal, candlenuts), to calculate the energy released. Candlenuts had the highest average energy content.
- A discussion of heat energy transfer and the relationship between energy absorbed during burning and final water temperature.
- An explanation of how understanding energy content can help people count daily calorie intake and maintain a balanced diet for health.
1) Core body temperature, skin temperatures, and oral temperature all significantly increased from baseline levels during passive heat stress induced by submerging subjects' legs in a heat bath and insulating them.
2) During an extra test where one hand was placed in an ice bath while heating continued, forehead skin temperature further significantly increased.
3) No other significant changes were observed in temperatures during the extra test.
Tutorial ini menjelaskan cara membuat efek dispersal atau efek serpihan pada foto menggunakan Photoshop. Tahapannya meliputi menggandakan layer foto, menghapus bagian tepinya dengan efek bercak, melelehkan bagian yang dihapus menggunakan liquify, menambahkan layer mask hitam, dan menyapukan brush efek bercak untuk menyelesaikan hasil akhir.
Sarah Lewis argues that near wins, or close calls, should be embraced rather than seen as failures. While setbacks are disappointing, near wins demonstrate progress and can motivate continued effort. Reframing near wins in a positive light may help people and teams persist through challenges and improve performance over time.
Recontextualizing for an Accessible ClassroomDorieMishael
This document provides information about two art therapists, Angelica Bigsby and Dorie Mishael, and their approaches to making art accessible for students with developmental and intellectual disabilities. It outlines their backgrounds, populations served, and an itinerary for a presentation on recontextualizing art education to meet the needs of all students. The presentation discusses reframing perceptions of disability, promoting personal autonomy through limited choices, observing students to accommodate their strengths and needs, and using creative sensory-based art techniques that engage students through tactile materials, grip assistance tools, multi-step projects, and grounding exercises. Questions from the audience are invited at the end.
The document discusses ditching JQuery for vanilla JavaScript. It describes how to perform common tasks like DOM manipulation, events, and AJAX calls without JQuery. While JQuery hides browser differences and simplifies code, understanding vanilla JavaScript makes developers better. The presenter provides examples of equivalent code for querying elements, adding events, and making requests. Polyfills can add missing browser functionality. While JQuery is still useful for old browsers, vanilla JavaScript offers more control and flexibility over the long run.
This project aims to develop the performance of mid-sized NGOs in Turkey through providing management consultancy with international interns. Interns from top universities will work with NGOs on topics like structure, marketing, human resources, finances, strategy, and processes. The interns will apply their knowledge over 6 weeks to make the NGOs more effective and impactful. Metrics like NGO surveys will evaluate the interns' work and the project's success in improving the NGOs' performance.
60; body temperatures and retreat site selection in saurodactylusRoger Meek
- Observations were made of the ground-dwelling lizard Saurodactylus brosseti in southern Morocco to study its retreat site characteristics and body temperatures. The study found that lizards selected retreat sites under significantly larger rocks than randomly selected rocks. Diurnal substrate temperatures inside retreat sites closely matched lizard body temperatures, though both decreased when sea mists were present and increased as conditions warmed. A regression analysis indicated the lizards exhibited partial thermoregulation. Relative humidity under retreat site rocks was significantly higher than outside humidity, suggesting lizards select sites that avoid extreme temperatures and low humidity.
The document discusses research on perfectionism in gifted children. It finds that there are three types of perfectionists - non-perfectionists, normal perfectionists, and neurotic perfectionists. Normal perfectionists focus on order and self-improvement, while neurotic perfectionists experience anxiety over making mistakes. Perfectionism in children is also related to perfectionism in their parents. The document notes consequences of perfectionism like impacts on relationships and a strong focus on academics and the future. It suggests ways to help hothoused kids like counseling and discussing perfectionism.
La Unión Europea ha acordado un paquete de sanciones contra Rusia por su invasión de Ucrania. Las sanciones incluyen restricciones a las transacciones con bancos rusos clave y la prohibición de la venta de aviones y equipos a Rusia. Los líderes de la UE esperan que las sanciones aumenten la presión económica sobre Rusia y la disuadan de continuar su agresión contra Ucrania.
Diversity and distribution of butterflies in the open and close canopy forest...Innspub Net
Butterflies were sampled in Cadaclan, San Fernando La Union Botanical Garden (LUBG) of North Luzon to provide information on species-level diversity trend and distribution of butterflies on the open and close canopy portion of the dipterocarp forest from 2012-2014 using field transect method Species accumulation curve shows that additional sampling is needed for the possible turnover of species. Butterfly abundance was higher in open canopy forest with a mean individual of 8.14 per 10 meters out of the 814 total individuals. The close canopy forest had only 4.57 mean individuals for the total of 457. Species level diversity was higher in open canopy forest (H’ = 1.957) compared with the closed canopy forest (H’ = 1.933). These results suggest that butterflies prefer open canopy forest or clearing for their plights. Butterfly spatial distribution was uneven in the dipterocarp forest of LUBG with only 6 species of aggregate assemblages and 98 species with random distribution. Get more articles at: http://www.innspub.net/volume-6-number-1-january-2015-jbes/
Port Coquitlam offers many parks and trails for outdoor recreation including Poco Trail, Minnekhada Regional Park, and Colony Farm Regional Park which are popular for hiking, biking, and bird watching. The community also has indoor recreation facilities such as Hyde Creek Recreation Centre, Wilson Center, and Gates Park outdoor gym that provide amenities like swimming pools, fitness rooms, and sports fields. Additionally, there are private businesses in the area such as Oxygen Yoga, 30 Minute Hit Kickboxing, and Riverside Fly and Tackle that offer classes and equipment for activities like yoga, martial arts, and fishing.
Esta herramienta permite a docentes y alumnos interactuar de forma más efectiva. Los profesores pueden crear material didáctico y tareas en línea, mientras que los estudiantes pueden acceder a los recursos y enviar trabajos de forma digital. Juntos, docentes y alumnos pueden aprovechar la tecnología para enriquecer el aprendizaje.
Dark Net The Devil in the Details - Larry Boettger and Michael Horsch FizzFitCEO, Inc. (FCI)
The document discusses the dark net and illegal dark market sites that enable criminal activities online. It describes how stolen data is bought and sold on these dark markets and how hackers can be hired to commit crimes. The methodology presented by VIMRO aims to protect organizations by taking a holistic approach to cybersecurity that aligns business needs with security requirements, implements frameworks and policies, and continuously evaluates systems through a maturity model approach.
The document summarizes a study on the thermal biology and thermoregulation of the anguid lizard Anguis fragilis. Observations were made of their behavior and body temperatures in outdoor enclosures under different weather conditions. Tests using null models, which measure the temperatures attainable in different microhabitats without behavioral thermoregulation, indicated that the lizards' primary reason for being active above ground was thermoregulation. Their body temperatures were significantly higher than temperatures in shaded areas but lower than in open areas, regardless of weather conditions. This suggests the lizards achieved thermoregulation by selecting appropriate microhabitats rather than extensive movement.
This study compared the ability of two ultrasound units, the Omnisound 3000 and the Forte 400 Combo, to increase tissue temperature at a depth of 1.2 cm. Researchers administered 10 minutes of continuous ultrasound at 3 MHz and 1 W/cm2 to the calf muscles of 10 healthy subjects. Tissue temperature was monitored continuously. The Omnisound 3000 produced a significantly greater increase in temperature, raising it by 5.81°C compared to 3.85°C for the Forte 400 Combo. The Omnisound 3000 was more effective at penetrating tissue and increasing temperature. However, the Forte 400 Combo is less expensive for clinicians.
This document summarizes a basic biology practicum report on the influence of temperature on organism activity. It was conducted by a student named Jeny ayu hardiah ningrum in December 2011. The practicum involved observing the operculum movement frequency of goldfish (Cyprinus carpio) in warm water and cold water with ice cubes over 5 minutes to determine how temperature affects chemical reactions and activity in the body. The purpose was to compare oxygen usage speeds in different temperatures. The practicum aimed to provide knowledge on how temperature influences organism processes and help with fish care.
Effects of air borne hazards on the physical and psychologicalAlexander Decker
This document summarizes a study that assessed airborne hazards and their effects on the physical and psychological health of Nigerian poultry workers. Airborne dust and ammonia levels were measured in poultry houses and found to exceed standards. Poultry workers experienced significantly more symptoms of physical ill-health like respiratory issues compared to controls. They also showed moderately higher levels of anxiety but similar levels of depression. Female poultry workers reported more physical and psychological symptoms than males. The results indicate airborne contaminants in poultry houses may negatively impact the health of workers.
2013 lima & antonialli junior foraging strategies of the ant ectatomma vizott...Luan Lima
Foraging activity may be limited by
temperature, humidity, radiation, wind, and other abiotic factors, all of which can affect energy costs during foraging. Ectatomma
vizottoi’s biology has only recently been studied, and no detailed information is available on its foraging patterns or diet in the field.
For this reason, and because foraging activity is an important part of the ecological success of social insects, the present study aimed
to investigate E. vizottoi’s foraging strategies and dietary habits. First, we determined how abiotic factors constrained E. vizottoi’s
foraging patterns in the field by monitoring the foraging activity of 16 colonies on eight different days across two seasons. Second,
we characterized E. vizottoi’s diet by monitoring another set of 26 colonies during peak foraging activity. Our results show that E.
vizottoi has foraging strategies that are similar to those of congeneric species. In spite of having a low efficiency index, colonies
adopted strategies that allowed them to successfully obtain food resources while avoiding adverse conditions. These strategies
included preying on other ant species, a foraging tactic that could arise if a wide variety of food items are not available in the
environment or if E. vizottoi simply prefers, regardless of resource availability, to prey on other invertebrates and especially on other
ant species.
37; reptiles, thermoregulation and the environment; reviewRoger Meek
This document summarizes research on thermoregulation in reptiles. It discusses how reptiles interact with their environments to regulate their body temperatures, highlighting examples from lizards, chelonians, and other groups. It examines constraints on reptile thermoregulation from environmental factors like climate and habitat, and costs associated with precise thermoregulation in harsh environments like high altitudes and latitudes. The document aims to provide insights into reptile thermal ecology to help herpetologists with captive breeding projects.
This study examines the thermal ecology of Ceratophora tennentii, an endangered agamid lizard found only in Sri Lanka's Knuckles Massif cloud forests. Over 165 lizards were observed and their body temperatures measured, along with associated air and substrate temperatures. The results showed that C. tennentii operates at relatively low body temperatures that closely track air temperatures, maintaining on average only 0.8°C above air temperature. This suggests the lizards partially abandon active thermoregulation in favor of thermoconformity due to the thermal challenges of their cloud forest habitat. The study provides novel insights into the thermal biology of this rare species and recommendations for further research needed to aid conservation efforts
Recontextualizing for an Accessible ClassroomDorieMishael
This document provides information about two art therapists, Angelica Bigsby and Dorie Mishael, and their approaches to making art accessible for students with developmental and intellectual disabilities. It outlines their backgrounds, populations served, and an itinerary for a presentation on recontextualizing art education to meet the needs of all students. The presentation discusses reframing perceptions of disability, promoting personal autonomy through limited choices, observing students to accommodate their strengths and needs, and using creative sensory-based art techniques that engage students through tactile materials, grip assistance tools, multi-step projects, and grounding exercises. Questions from the audience are invited at the end.
The document discusses ditching JQuery for vanilla JavaScript. It describes how to perform common tasks like DOM manipulation, events, and AJAX calls without JQuery. While JQuery hides browser differences and simplifies code, understanding vanilla JavaScript makes developers better. The presenter provides examples of equivalent code for querying elements, adding events, and making requests. Polyfills can add missing browser functionality. While JQuery is still useful for old browsers, vanilla JavaScript offers more control and flexibility over the long run.
This project aims to develop the performance of mid-sized NGOs in Turkey through providing management consultancy with international interns. Interns from top universities will work with NGOs on topics like structure, marketing, human resources, finances, strategy, and processes. The interns will apply their knowledge over 6 weeks to make the NGOs more effective and impactful. Metrics like NGO surveys will evaluate the interns' work and the project's success in improving the NGOs' performance.
60; body temperatures and retreat site selection in saurodactylusRoger Meek
- Observations were made of the ground-dwelling lizard Saurodactylus brosseti in southern Morocco to study its retreat site characteristics and body temperatures. The study found that lizards selected retreat sites under significantly larger rocks than randomly selected rocks. Diurnal substrate temperatures inside retreat sites closely matched lizard body temperatures, though both decreased when sea mists were present and increased as conditions warmed. A regression analysis indicated the lizards exhibited partial thermoregulation. Relative humidity under retreat site rocks was significantly higher than outside humidity, suggesting lizards select sites that avoid extreme temperatures and low humidity.
The document discusses research on perfectionism in gifted children. It finds that there are three types of perfectionists - non-perfectionists, normal perfectionists, and neurotic perfectionists. Normal perfectionists focus on order and self-improvement, while neurotic perfectionists experience anxiety over making mistakes. Perfectionism in children is also related to perfectionism in their parents. The document notes consequences of perfectionism like impacts on relationships and a strong focus on academics and the future. It suggests ways to help hothoused kids like counseling and discussing perfectionism.
La Unión Europea ha acordado un paquete de sanciones contra Rusia por su invasión de Ucrania. Las sanciones incluyen restricciones a las transacciones con bancos rusos clave y la prohibición de la venta de aviones y equipos a Rusia. Los líderes de la UE esperan que las sanciones aumenten la presión económica sobre Rusia y la disuadan de continuar su agresión contra Ucrania.
Diversity and distribution of butterflies in the open and close canopy forest...Innspub Net
Butterflies were sampled in Cadaclan, San Fernando La Union Botanical Garden (LUBG) of North Luzon to provide information on species-level diversity trend and distribution of butterflies on the open and close canopy portion of the dipterocarp forest from 2012-2014 using field transect method Species accumulation curve shows that additional sampling is needed for the possible turnover of species. Butterfly abundance was higher in open canopy forest with a mean individual of 8.14 per 10 meters out of the 814 total individuals. The close canopy forest had only 4.57 mean individuals for the total of 457. Species level diversity was higher in open canopy forest (H’ = 1.957) compared with the closed canopy forest (H’ = 1.933). These results suggest that butterflies prefer open canopy forest or clearing for their plights. Butterfly spatial distribution was uneven in the dipterocarp forest of LUBG with only 6 species of aggregate assemblages and 98 species with random distribution. Get more articles at: http://www.innspub.net/volume-6-number-1-january-2015-jbes/
Port Coquitlam offers many parks and trails for outdoor recreation including Poco Trail, Minnekhada Regional Park, and Colony Farm Regional Park which are popular for hiking, biking, and bird watching. The community also has indoor recreation facilities such as Hyde Creek Recreation Centre, Wilson Center, and Gates Park outdoor gym that provide amenities like swimming pools, fitness rooms, and sports fields. Additionally, there are private businesses in the area such as Oxygen Yoga, 30 Minute Hit Kickboxing, and Riverside Fly and Tackle that offer classes and equipment for activities like yoga, martial arts, and fishing.
Esta herramienta permite a docentes y alumnos interactuar de forma más efectiva. Los profesores pueden crear material didáctico y tareas en línea, mientras que los estudiantes pueden acceder a los recursos y enviar trabajos de forma digital. Juntos, docentes y alumnos pueden aprovechar la tecnología para enriquecer el aprendizaje.
Dark Net The Devil in the Details - Larry Boettger and Michael Horsch FizzFitCEO, Inc. (FCI)
The document discusses the dark net and illegal dark market sites that enable criminal activities online. It describes how stolen data is bought and sold on these dark markets and how hackers can be hired to commit crimes. The methodology presented by VIMRO aims to protect organizations by taking a holistic approach to cybersecurity that aligns business needs with security requirements, implements frameworks and policies, and continuously evaluates systems through a maturity model approach.
The document summarizes a study on the thermal biology and thermoregulation of the anguid lizard Anguis fragilis. Observations were made of their behavior and body temperatures in outdoor enclosures under different weather conditions. Tests using null models, which measure the temperatures attainable in different microhabitats without behavioral thermoregulation, indicated that the lizards' primary reason for being active above ground was thermoregulation. Their body temperatures were significantly higher than temperatures in shaded areas but lower than in open areas, regardless of weather conditions. This suggests the lizards achieved thermoregulation by selecting appropriate microhabitats rather than extensive movement.
This study compared the ability of two ultrasound units, the Omnisound 3000 and the Forte 400 Combo, to increase tissue temperature at a depth of 1.2 cm. Researchers administered 10 minutes of continuous ultrasound at 3 MHz and 1 W/cm2 to the calf muscles of 10 healthy subjects. Tissue temperature was monitored continuously. The Omnisound 3000 produced a significantly greater increase in temperature, raising it by 5.81°C compared to 3.85°C for the Forte 400 Combo. The Omnisound 3000 was more effective at penetrating tissue and increasing temperature. However, the Forte 400 Combo is less expensive for clinicians.
This document summarizes a basic biology practicum report on the influence of temperature on organism activity. It was conducted by a student named Jeny ayu hardiah ningrum in December 2011. The practicum involved observing the operculum movement frequency of goldfish (Cyprinus carpio) in warm water and cold water with ice cubes over 5 minutes to determine how temperature affects chemical reactions and activity in the body. The purpose was to compare oxygen usage speeds in different temperatures. The practicum aimed to provide knowledge on how temperature influences organism processes and help with fish care.
Effects of air borne hazards on the physical and psychologicalAlexander Decker
This document summarizes a study that assessed airborne hazards and their effects on the physical and psychological health of Nigerian poultry workers. Airborne dust and ammonia levels were measured in poultry houses and found to exceed standards. Poultry workers experienced significantly more symptoms of physical ill-health like respiratory issues compared to controls. They also showed moderately higher levels of anxiety but similar levels of depression. Female poultry workers reported more physical and psychological symptoms than males. The results indicate airborne contaminants in poultry houses may negatively impact the health of workers.
2013 lima & antonialli junior foraging strategies of the ant ectatomma vizott...Luan Lima
Foraging activity may be limited by
temperature, humidity, radiation, wind, and other abiotic factors, all of which can affect energy costs during foraging. Ectatomma
vizottoi’s biology has only recently been studied, and no detailed information is available on its foraging patterns or diet in the field.
For this reason, and because foraging activity is an important part of the ecological success of social insects, the present study aimed
to investigate E. vizottoi’s foraging strategies and dietary habits. First, we determined how abiotic factors constrained E. vizottoi’s
foraging patterns in the field by monitoring the foraging activity of 16 colonies on eight different days across two seasons. Second,
we characterized E. vizottoi’s diet by monitoring another set of 26 colonies during peak foraging activity. Our results show that E.
vizottoi has foraging strategies that are similar to those of congeneric species. In spite of having a low efficiency index, colonies
adopted strategies that allowed them to successfully obtain food resources while avoiding adverse conditions. These strategies
included preying on other ant species, a foraging tactic that could arise if a wide variety of food items are not available in the
environment or if E. vizottoi simply prefers, regardless of resource availability, to prey on other invertebrates and especially on other
ant species.
37; reptiles, thermoregulation and the environment; reviewRoger Meek
This document summarizes research on thermoregulation in reptiles. It discusses how reptiles interact with their environments to regulate their body temperatures, highlighting examples from lizards, chelonians, and other groups. It examines constraints on reptile thermoregulation from environmental factors like climate and habitat, and costs associated with precise thermoregulation in harsh environments like high altitudes and latitudes. The document aims to provide insights into reptile thermal ecology to help herpetologists with captive breeding projects.
This study examines the thermal ecology of Ceratophora tennentii, an endangered agamid lizard found only in Sri Lanka's Knuckles Massif cloud forests. Over 165 lizards were observed and their body temperatures measured, along with associated air and substrate temperatures. The results showed that C. tennentii operates at relatively low body temperatures that closely track air temperatures, maintaining on average only 0.8°C above air temperature. This suggests the lizards partially abandon active thermoregulation in favor of thermoconformity due to the thermal challenges of their cloud forest habitat. The study provides novel insights into the thermal biology of this rare species and recommendations for further research needed to aid conservation efforts
This study compared the thermoregulation of Chinampo cattle, Holstein cattle, and Jersey cattle in a hot, arid region of northwest Mexico from June to December. Rectal temperature and respiratory rate were recorded for each breed. The results showed that Holstein cattle had the highest rectal temperatures, especially in September, indicating they were least tolerant to heat stress. Chinampo cattle maintained rectal temperatures and respiratory rates closest to normal limits and had the lowest physiological responses to increasing heat stress, showing they were most tolerant to high temperatures.
This study examined the effects of heat on cycling performance. Eight cyclists completed submaximal and 5-minute maximal cycling trials in both normal and heated conditions. Core temperature, heart rate, perceived exertion and other physiological measures were taken throughout. During the maximal trials, cyclists generated significantly higher average power and did more total work in the normal condition compared to the heated condition. The study found that increased heat stress negatively impacted cycling performance.
Experiments with duckweed–moth systems suggest thatglobal wa.docxelbanglis
Experiments with duckweed–moth systems suggest that
global warming may reduce rather than promote
herbivory
TJISSE VAN DER HEIDE, RUDI M. M. ROIJACKERS, EDWIN T. H. M. PEETERS AND
EGBERT H. VAN NES
Department of Environmental Sciences, Aquatic Ecology and Water Quality Management group, Wageningen University,
Wageningen, The Netherlands
SUMMARY
1. Wilf & Labandeira (1999) suggested that increased temperatures because of global
warming will cause an increase in herbivory by insects. This conclusion was based on the
supposed effect of temperature on herbivores but did not consider an effect of temperature
on plant growth.
2. We studied the effect of temperature on grazing pressure by the small China-mark moth
(Cataclysta lemnata L.) on Lemna minor L. in laboratory experiments.
3. Between temperatures of 15 and 24 �C we found a sigmoidal increase in C. lemnata
grazing rates, and an approximately linear increase in L. minor growth rates. Therefore, an
increase in temperature did not always result in higher grazing pressure by this insect as
the regrowth of Lemna changes also.
4. At temperatures below 18.7 �C, Lemna benefited more than Cataclysta from an increase in
temperature, causing a decrease in grazing pressure.
5. In the context of global warming, we conclude that rising temperatures will not
necessarily increase grazing pressure by herbivorous insects.
Keywords: Cataclysta, grazing, herbivory, Lemna, temperature
Introduction
Duckweeds (Lemnaceae) are often abundant in dit-
ches and ponds (Landolt, 1986). Especially when
nitrogen and phosphorus concentrations in the water
column are high, the surface area can become covered
with dense floating mats of duckweed (Lüönd, 1980,
1983; Portielje & Roijackers, 1995). These mats have
large impacts on freshwater ecosystems, restricting
oxygen supply (Pokorny & Rejmánková, 1983), light
availability of algae and submerged macrophytes
(Wolek, 1974) and temperature fluxes (Dale &
Gillespie, 1976; Landolt, 1986; Goldsborough, 1993).
These changed conditions often have a negative effect
on the biodiversity of the ecosystem (Janse & van
Puijenbroek, 1998). Other free-floating plants such as
red water fern (Azolla filiculoides), water hyacinth
(Eichhornia crassipes) and water lettuce (Pistia stratiotes)
often cause serious problems in tropical and sub-
tropical regions (Mehra et al., 1999; Hill, 2003).
Various species of herbivorous insects consume
free-floating macrophytes. Several species of weevils
(Coleoptera: Curculionidae) are able to consume large
amounts of red water fern, water hyacinth and water
lettuce (Cilliers, 1991; Hill & Cilliers, 1999; Aguilar
et al., 2003), while the larvae of the semi-aquatic Small
China-mark moth (Cataclysta lemnata) are capable of
removing large parts of floating cover of Lemnaceae
covers (Wesenberg-Lund, 1943). Duckweed is not
only used as food source, but also as building material
Correspondence: Rudi M. M. Roijacker ...
This study examined the body temperatures of common toads (Bufo bufo) in France. The main findings were:
1) Nocturnal body temperatures ranged from 11.7-18.9°C and were associated with air and substrate temperatures.
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This document summarizes various animal models used to screen analgesics for acute and chronic pain. It describes models using thermal, electrical, chemical, and mechanical stimuli to induce nociception. For acute pain, it details hot plate, tail flick, and formalin tests. For chronic pain, it outlines neuropathic pain models like sciatic nerve injury and vincristine-induced neuropathy. Cancer and diabetic neuropathy models are also summarized. The document provides details of procedures, pain behaviors measured, and usefulness of each model in evaluating different classes of analgesics.
The document describes a study that investigated the effects of different intensities of noise stress (60, 80, 100, 120, 140 dB) on body weight and adrenal gland weight in male Wistar rats. The rats were exposed to 1 hour of noise per day for 30 days. Food/water intake and body weight were measured on days 1, 15, and 30. Adrenal gland weights were measured on day 30. The results showed that higher noise intensities (120-140 dB) significantly reduced food/water intake and body weight, while lower intensities (60-100 dB) showed recovery. Adrenal gland weights increased with higher noise levels. The study suggests noise stress affects physiology in a intensity-dependent manner.
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This handbook was designed to support delegates attending a clinical support worker skills workshop run by Trust Interventions. The purpose of the handbook is to enhance learning from the course and serve as a future reference. Trust Interventions offers a range of flexibly delivered training courses and services on topics like taking temperatures, conditions requiring temperature monitoring, and types of thermometers.
This handbook was designed to support delegates attending a clinical support worker skills workshop run by Trust Interventions. The purpose of the handbook is to enhance learning from the course and serve as a future reference. Trust Interventions offers a range of flexibly delivered training courses and services on topics like taking temperatures, conditions requiring temperature monitoring, and types of thermometers.
The document summarizes research investigating the effects of prenatal exposure to the antidepressant sertraline (SE) on rat offspring development. The study found that: 1) Pregnant rats exposed to SE had decreased body weight and some experienced vaginal bleeding. 2) Male offspring exposed to SE prenatally showed delays in fur growth, tooth eruption, and negative geotaxis reflexes. 3) SE exposure resulted in less open arm exploration in offspring in the elevated plus maze test, indicating increased anxiety. The study suggests prenatal SE exposure can compromise somatic, reflex and neurobehavioral development in rat offspring.
An Estimate of Thermal Comfort in North-Central Region of NigeriaIOSR Journals
This document analyzes thermal comfort levels in five urban areas in Nigeria's North-Central region from 1980-2009. Temperature, humidity, and wind speed data were used to calculate temperature-humidity indices and wind chill indices monthly. Results showed severe heat stress in April, May, and March in Abuja, Minna, Lokoja, and Bida, while moderate heat stress occurred other months. Jos experienced comfortable conditions year-round except November-January. Extreme heat was most frequent in April for areas other than Jos. Moderate heat stress was most common in transition months. Jos remained relatively comfortable due to its high elevation.
This document summarizes a study on the thermal ecology of the European tree frog (Hyla arborea) in western France. The study measured body temperatures of 108 frogs over six years during sunny and overcast weather conditions. Body temperatures were higher on sunny days but showed similar variability. Body temperatures correlated most closely with temperatures of shaded leaves, regardless of weather. This suggests H. arborea controls its body temperature through selecting shaded microhabitats, though some frogs were observed basking in sunny areas, even on hot days.
Similar to 49; bearded dragon thermo respiration hnd (20)
This document summarizes observations of movements, mating, and parturition in a female aspic viper (Vipera aspis) in western France over two years. The female was observed basking near her hibernaculum in early spring both years. In 2015, she was observed mating with another viper in April and giving birth to an estimated 6 offspring in September, consistent with the species' gestation period. Post-parturition, she was sighted moving between hibernaculum areas until late fall. No vipers were sighted near the hibernaculum over summer, suggesting a seasonal migration. The observations provide information about the species' thermoregulation and reproductive behaviors.
This document summarizes observations of post-hibernation movements of four reptile species - Hierophis viridiflavus, Natrix natrix, Vipera aspis, and Lacerta bilineata - around a hibernaculum in western France between late March and late May. Most sightings occurred in April, gradually declining later that month, with no reptiles seen after May 28th. The reptiles remained close to the hibernaculum for approximately 45 days before dispersing. Movement patterns and areas used were analyzed and discussed in relation to habitat characteristics and previous studies.
This document summarizes a field observation of an injured western green lizard (Lacerta bilineata) in France. The lizard was found immobilized on a road with head trauma and lacerations near its right eye and jaw that appeared to be caused by another animal. It was treated and recovered over two weeks. The injury was likely sustained either from an attack by a predator like a snake or bird of prey, or from combat with another male lizard during their intense territorial fights in spring. Such injuries increase vulnerability to additional threats and could reduce survival potential.
This document reports on observations of defence behaviours in the viperine snake (Natrix maura) in France. A male N. maura was observed adopting a "balling" defence behaviour where it hid its head in the centre of its coiled body with its tail raised. This behaviour is commonly seen in smaller snakes as a defence against predators. The document also discusses breeding phenology observations of the common toad (Bufo bufo) in Spain, noting earlier breeding and egg-laying was observed in some populations compared to previous years, which may be influenced by climate change.
42; physignathus lesueurii predation (natural history note)Roger Meek
1) The Australian Water Dragon (Physignathus lesueurii) was observed preying on the Grass Skink (Lampropholis delicata) on multiple occasions at the Australian Botanical Gardens.
2) Observations included 8 successful predation events where the Water Dragon captured the Grass Skink from distances up to 7 meters away.
3) Unsuccessful predation attempts by Water Dragons on Grass Skinks were also observed, with the skinks escaping into vegetation.
This document summarizes a study that measured the temperatures inside nests of the Australian water dragon (Physignathus lesueurii) over several days in November and December. The study found:
1) Nest temperatures remained relatively constant, between 23-29°C, even as external temperatures varied more widely.
2) The highest nest temperatures were recorded on a sunny day in early December, while overcast days saw maximums below 25°C.
3) Nest temperatures were generally lower than those reported for similar sized tropical lizards, remaining cooler than external temperatures to prevent overheating of eggs.
57; combat behaviour in varanus salvator (natural history note)Roger Meek
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Researchers successfully incubated two clutches of reptile eggs under fluctuating temperatures rather than a constant temperature. The eggs hatched and produced healthy hatchlings. The study showed that reptile eggs can develop under more natural fluctuating temperatures rather than the traditional constant temperatures used in captivity.
The document summarizes a study that analyzed the relationship between body mass and carapace length in four chelonian species: Testudo graeca, Testudo hermanni, Emys orbicularis, and Chrysemys scripta. The study found allometric equations describing this relationship for each species, with carapace length generally proportional to body mass raised to the 0.34 power. A comprehensive equation for all species combined supported this finding.
30; allometry in testudo sulcata; a reappraisalRoger Meek
This paper reexamines data on the relationship between carapace length and body mass in the desert tortoise (Testudo sulcata) from a previous study. The authors calculate new allometric equations using the original data and find exponents of 0.36 and 0.39, which disagree with the previous study's calculation of 0.91. These new exponents are closer to what would be expected based on other research on chelonian allometry. The authors conclude the previous study likely contained errors in their calculations and analysis of this tortoise species' measurements.
This document summarizes the use of cryosurgery to treat skin disorders in two lizards and one turtle. Cryosurgery, which uses extremely low temperatures to destroy unwanted tissue, was used to successfully treat a large growth on a green lizard, a skin lesion on a tegu lizard, and an infected swelling behind the ear of a box turtle. The results indicate that cryosurgery may be a valuable surgical tool for treating skin disorders and infections in reptiles.
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3) Mortality patterns varied by age class, with most adult snake deaths occurring in May during the breeding season and most subadult/hatchling deaths in August and September during dispersal from nest sites.
1) A Solomon Island skink (Corucia zebrata) showed signs of a skin infection and was treated with the antibiotic Baytril. After initially recovering, the skink's condition gradually declined despite a good appetite.
2) It is suspected that the antibiotic treatment may have adversely affected the skink's intestinal microbe and nematode populations, causing maldigestion.
3) 'Artificial coprophagy' was induced by smearing mealworms with cagemates' feces, which the skink consumed. This helped restore the intestinal fauna and the skink regained normal weight within two months.
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
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collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
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Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
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Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
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Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
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photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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20240520 Planning a Circuit Simulator in JavaScript.pptx
49; bearded dragon thermo respiration hnd
1. 1
Herpetological Bulletin [2004] 87, 3 – 8.
Effect of husbandry manipulations on respiratory rates in captive bearded
dragons (Pogona vitticeps)
KEVIN MILNER, TARA WADDING & ROGER MEEK∗
Herpetological Unit, Taylor Hill Annexe, Huddersfield Technical College,
Huddersfield, UK
∗
author for correspondence, 7 Rue Georges Clemenceau, Chasnais, France
E-mail: Rogermeek85@aol.com
ABSTRACT - The behaviour, body temperatures and respiratory rates of captive bearded dragons
(Pogona vitticeps) were recorded during periods with handling and non-handling intervals. Respiratory
rates increased at approximately equal rates with increasing body temperatures irrespective of whether
the animals were handled or not. Respiratory rates increased significantly after handling but there were
no significant differences in behaviour before and after handling. The implications have been discussed
in respect to animal usage in captive husbandry and education programmes.
Reptile behaviour is shaped by many factors; their genetic heritage, environments, and
experiences among others, and these may interlink to define what are easy or difficult species
to deal with in a husbandry context. Progress in reptile husbandry has now gone beyond basic
techniques and in recent years has extended to asking questions about behavioural and
physiological problems in captive conditions (Warwick et al, 1995). As captive breeding and
rearing of reptiles becomes more common and perceived as both an aid to conservation and
education, there is a need for an increased understanding of the subtler requirements of their
maintenance in captivity and the frequency of their usage in demonstrations for educational
purposes.
In this respect it is interesting that the response to captive conditions are varied and often
surprising. For example the discovery of elevated body temperatures after husbandry
manipulations in the Teiid lizard Callopistes maculatus (Cabanac & Gosselin, 1993) which
has been termed emotional fever, does not necessarily apply to all lizards; a recent study on
the Australian bearded dragon (Pogona vitticeps) was unable to detect any significant
influence of handling on thermoregulation (Cannon et. al., 2002). However the effects of
handling on lizards may concern factors other than thermoregulation and we have expanded
the question to test for the effects on respiratory rates in P. vitticeps. One of the benefits of
this approach is that although respiratory frequency is irregular in lizards (Avery & D`Eath,
1986), it is readily observed and often elevates in response to external stimuli (Milsom, 1984;
Avery, 1993) and hence it is a convenient, albeit indirect, method for determining stress as
direct measurement requires the examination of hormone levels such as adrenalin and
corticosteroids. We simultaneously measured behaviour and body temperatures to test for any
possible influences they may also have had on respiration. The results are based on data
collected by K.M. for a second year HND research assignment at Huddersfield Technical
College supervised by R.M. but with additional data gathered by T.W.
METHODS & MATERIALS
The observations were made between September 2002 and February 2003 on 5 adult P.
vitticeps aged 3-4 years consisting of 1 male and 4 females. All animals were captive bred at
the college and had previously been employed in teaching programmes including
demonstrations in animal handling. The data were usually collected once a week between
12:30 and 15:00 hours on a single enclosure measuring 2.24m long and 0.94m wide with a
height of 1.77m. The cage was exposed to natural sunlight as well as light provided by UV
2. 2
lamps and infrared heating lamps. The latter produced a temperature range of between 28 and
49o
C. Body temperature, here determined as skin surface temperature, was measured using an
Omega OS204 non-invasive digital thermometer by directing the instrument about 1 – 5cm
from the surface of the skin. Skin surface temperature is in good agreement with cloacal
temperature in lizards particularly in medium sized animals (Meek, 1999).
The observational conditions were 1) 30 minutes of continuous observation with no
handling at any time 2) 15 minutes of no handling with a 5 minute handling interval followed
by 3) a further 15 minute period of no handling after the handling interval. The lizards were
handled on a 1- week rotational basis, 2 females were handled during one session followed by
a week of no handling with the other 2 females handled on the weeks when the others were
not handled. The male was handled on alternate weeks. The behaviours were: - basking,
positioned either in the sun or under a heat lamp which could be either on tree stumps or
rocks; perching, positioned in an open area but not in sun or under a lamp; hiding, located
down an under ground retreat area; locomotory activity, engaged in movement in any area of
the enclosure. Counts of respiratory frequency were based on each complete cycle of
ventilatory movements of the anterior rib cage (Milsom, 1984) lasting 1 minute at 5-minute
intervals over the 15 or 30-minute observational periods.
The total data collected were 320 observations each on behaviour and body temperature
and 320 one-minute observation periods of respiration. However, because of the degree of
scatter in respiratory frequency when the animals were active these data have been eliminated
from the main analysis and used only in calculating behaviour frequencies. Therefore
observations of respiratory frequencies were 309. The method of analysis used here however
was to consider each individual lizard as one data point based on the means of respiratory
rates, body temperatures or the medians of individual percentage behaviours (Hurlbert, 1984).
This considerably reduces the degrees of freedom and hence the possibility of committing a
type II statistical error (Wilson & Dugatin, 1996) but it avoids overestimating the degrees of
freedom, as would be the case if each measurement had been treated as an independent event
(Lombardi & Hurlbert, 1996). Plus or minus values given are standard deviations.
RESULTS
Body temperature effects on respiration. To test for possible influences of body temperature
on respiration it was found that the simplest method was to mathematically model the data
sets and compare the rates of change. Since most physiological processes increase
exponentially with temperature, body temperature (Tb) was treated as the independent variable
x and the logarithmic transforms of respiratory rate as the dependent variable y giving an
equation of the form,
y = aebx
where e is the base natural logarithm, b the exponential and a the y-intercept. Standard errors
for b have been calculated using the method described by Bailey (1981). Figure 1 shows plots
of the data on semi logarithmic coordinates and indicates increased respiratory frequency with
increasing body temperatures, irrespective of whether the animals were handled or not. When
the lizards were not handled (both no handling data sets pooled) the relationship was defined
by: -
Respiration = 1.548e0.06 ± 0.01Tb
n = 250 (1)
and after handling by: -
Respiration = 6.594e0.034 ± 0.02Tb
n = 59 (2)
Equation (1) indicates a higher rate of increase in respiration with temperature but the
standard errors attached to the exponentials are high in both equations particularly in equation
(2) reflecting the amount of scatter. A test for differences between exponentials showed that
they were not significantly different t = 0.16, p > 0.05 (Bailey, 1981) and therefore respiration
increased with increasing temperature at similar rates.
3. 3
BODY TEMPERATURE (oC)
1
10
100
15 20 25 30 35 40 45
(1)
(2)
1
10
100
15 20 25 30 35 40 45
(1)
RESPIRATIONRATE(frequencyperminute)
Respiration rates. The mean respiratory rates of resting lizards are shown in Fig.2 as box
plots. The highest rates were from the animals after they were handled (grand mean =
20.6±1.0), before they were handled, grand mean = 14.1±1.2 and when they were not handled
at any time 13.2±1.1. A test using ANOVA, F(2,12) = 64.61, p < 0.0001 showed differences in
the data sets. A two sample t-test with variances assumed unequal indicated that the
differences were significant between respiration after the lizards were handled and the other
two samples respectively: before they were handled, t = 9.09, p <0.0001, d.f. = 8, not handled
at any time, t = 11.07, p < 0.0001, d.f. = 8. These results support the validity of pooling both
no handling data sets for calculating equation (1).
Behaviour related respiratory rates. To determine whether there were purely behaviour
aspects to respiratory rates, the data were analysed in their behaviour subsets. We could
examine only for the principal behaviours as these had the only useful sample sizes. The
results showed that the mean was greater in perching after handling (18.4± 3.9 per minute)
compared to perching before handling (12.8±1.1per minute) and not handled at any time
(11.7±1.8 per minute). ANOVA detected differences in the data sets F(2,12) = 10.71, p = 0.002
and two sample t-tests with the variances assumed unequal showed the differences were
between respiration rates after handling and the other two data sets: before handling, t = 3.28,
p = 0.03, d.f. = 4, not handled at any time, t = 3.65, p = 0.015, d.f. = 5. Respiratory rates were
greater in basking lizards after they were handled (mean = 20.2±2.3) followed by before
handling (16.3±2.0) and when they were not handled at any time (14.4±1.0). Again ANOVA
detected differences in the data sets, F (2,12) = 12.18, p = 0.001 and two sample t-tests showed
the differences in respiratory rates were between after handling and immediately before
handling (t = 2.79, p = 0.027, d.f. = 7) and after handling and not handled at any time (t =
5.06, p = 0.004, d.f. = 5).
Figure 1
Graphs on semi logarithmic
coordinates showing the
relationship between respiratory
rate and body temperature after
handling (lower graph) and when
not handled. The lines taken
through the data were fitted
using equations (1) and (2) given
in the text. See text for a further
explanation of these results.
4. 4
35
25
15
5
NOT HANDLED
AT ALL
BEFORE
HANDLING
AFTER
HANDLING
RESPIRATORYRATE(PERMIN.)
n = 59 n = 191 n = 59
Behaviour. We compared behaviour differences to determine if changes here could have been
influencing respiratory rates. The data were converted to percentage frequencies of total
behaviours and the results are shown in table 1 as median percent values. Kruskal-Wallis non
–parametric tests showed no significant differences between the data sets; Basking, H = 3.96,
perching, H = 4.74, shade, H = 3.04, all p>0.05 and at 3n = 15. Activity levels were low
during the study (from 1.6 to 4.5% of total behaviours) and not considered viable for
statistical testing.
Table 1. Behaviours of P.vitticeps with the results shown as the grand medians (interquartile ranges Q1 – Q3)
which have been calculated from the median percentage frequencies of individual lizards i.e. n = 5.
Before handling No handling at all After handling
Median Q1 - Q3 Median Q1 – Q3 Median Q1 – Q3
Basking 37.5 25.0 - 70.0 20.0 3.3 - 53.5 66.6 20.0 - 73.3
Perching 40.0 28.4 - 52.5 73.3 34.0 - 79.9 40.0 13.3 - 80.0
Shade 5.0 1.25 - 27.5 13.3 6.6 - 23.3 1.0 0 - 10.4
DISCUSSION
The present findings show a strong association between lizard handling and increased
respiratory rates in P. vitticeps. The statistical methods employed, including the obvious
differences in y-intercepts between equations (1) and (2) satisfactorily eliminated behaviour
and body temperature as contributing effects. The results therefore indicate that the increased
respiration rates were due to handling with the expectation that adrenalin secretion followed.
Why should the findings be a consideration in reptile husbandry? Previous research has
shown that elevated respiratory rates, through what has been described as handling stress,
initiated dramatic hormone changes even in reptiles that are habituated to humans (Lance,
Figure 2
Box plots of respiratory rates of P.
vitticeps when they were not
handled at any time (left)
immediately before (centre) and
after they were handled. The boxes
represent the interquartile ranges
with the means shown as solid
circles and medians as horizontal
bars. The vertical lines either side
of the interquartile ranges represent
the general ranges of the data but
solid circles indicate outliers – data
that are between 1.5 to 3 times
from the interquartile ranges.
5. 5
1992) resulting in reduced growth, suppressed reproductive capacity and susceptibility to
infection (Stephens, 1980; Lillywhite & Gatten, 1995; Guillette et. al., 1995). Irrespective of
the view that animals must be at some time be subject to some stress in their natural
environments (Greenberg and Wingfield, 1987) and is an evolutionary mechanism for
adaptation to changing environments (Guillette, 1985), it would appear nevertheless that
elevated respiratory rates, particularly if handling is a frequent normal practice, is an
important issue not only for animal welfare but also captive breeding programmes. What was
perhaps unexpected was the failure of our P. vitticeps to habituate to frequent handling, in the
sense that subjectively they appeared to be little disturbed by the experience. However,
increased respiratory rates associated with sudden stimuli - loud noises among other things,
were observed in Lacertid lizards that had been in captivity for long periods (Avery, 1999)
and prey capture probability also decreased with increasing respiratory frequency with a total
absence of feeding at high respiratory movements (Avery, 1993).
A theoretical consideration is that being picked up and benignly handled is something
that reptiles are unlikely to have experience of in natural conditions and therefore may have
no inbuilt behavioural mechanisms, determined by evolutionary processes, that enable them
to respond positively to the experience. Indeed contact, particularly with larger species, is
something they would be expected to avoid based on evidence from observations on animals
in both field and captive conditions. For example, free-living lizards that were awoken at
night in their regular resting place avoided these spots on the following nights (Bowers &
Burghardt, 1992) and captive Australian tree frogs (Litoria caerulea) living in large
naturalistic enclosures abandoned regular resting places after being handled (R. Meek per.
observation). This indicates the evolution of behaviours designed to avoid contact with other
species, which must be adaptive in most circumstances – anti predation is one obvious
example. Many reptiles held in private and education establishments are handled on an almost
daily basis which may physiologically equate with frequent predator encounters but there is
no real evidence that reptiles are naturally subject to such high intensities of predator
interaction and as such may be detrimental to long term well being.
It would appear then that the evidence suggests some species appear to be more affected
by husbandry manipulations than others; an example is the different effects on
thermoregulatory behaviour (e.g. Cabanac & Gosselin, 1993;Cannon et. al., 2002). Handling
effects may very well depend on, among other things, the animal’s natural lifestyle – species
that employ flight as an escape tactic rather than crypsis could be more susceptible to stress
through human contact. This could be a useful area for further investigation and a key factor
to be taken into account in respect to research or educational programmes and relevant since
practical husbandry courses on reptiles are a high growth area in UK education.
ACKNOWLEDGEMENTS
We thank Dr Roger Avery and Dr Adrian Hailey for critical comments on an earlier draft of
the manuscript.
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