The document discusses methods for investigating ecosystems, including naming and locating the ecosystem, identifying organisms using keys and collections, using sampling strategies to measure biotic and abiotic factors over time and space, and estimating biomass and populations of organisms. It also covers calculating species richness, diversity, and evenness to compare ecosystems.
This presentation supports the IB Environmental System and Societies Diploma Programme course.
Extensive support material can be found at www.sciencebitz.com
Additional review and revision material is available as an iTunesU course at
https://itunesu.itunes.apple.com/enroll/DEZ-HWS-HNJ
Energy availability, metabolic niche dynamics, and connectivity alter assembl...Craig McClain
Energy availability has long been recognized as a predictor of community structure, but causal relationships between energy availability and community structure remain unclear. One challenge is that determinants of available energy in natural systems are diverse and often unidentifiable. Multiple, functionally distinct sources of energy exist in terrestrial, freshwater, and coastal marine systems, and energy from these sources flows across landscapes and habitat boundaries. Another challenge is that “community structure” consists of three components—standing stock, trophic structure, and diversity—and energy availability does not consistently predict any one component. Understanding processes underlying patterns of community structure requires identifying tradeoffs between standing stock, trophic structure and diversity, yet such studies are rarely done. Wood-fall communities in the deep sea are an ideal test system for many theories about community assembly and energetic theory for three reasons. First, the amount of energy available to the community can be precisely manipulated in the form of wood mass. Second, flows of energy from wood through the community can be easily tracked because animals supported by wood are isotopically distinct from other animals in the background benthos. Finally, the entire community associated with a wood fall can be sampled, allowing for accurate estimates of standing stock. For these reasons, deep-sea wood falls make possible accurate joint analysis of standing stock, trophic structure, and diversity as a function of energy availability. I will discuss and identify the tradeoffs in energetic processes that regulate the biodiversity and structure of communities, using ROV/submersible-deployed wood falls.
Five most significant findings from water resourcesMrinmoy Majumder
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IARU Global Challenges 2014 Cornell Tracking our declineSarah Cornell
There is growing attention to the global risks - not just local impacts - of present rates of biodiversity loss. It is worth keeping in mind that 'biodiversity loss' actually means the destruction (sometimes irreversible) – by us, people – of living organisms, Earth's 'genetic library', species, ecosystems and habitats. The fact that ecosystems are complex, adaptive, and locally specific means they can't be adequately represented in a single global measure. But without any overarching global perspective on losses, the locally contingent measures are 'untethered' to the real risks of systemic change. Scientists of many kinds are rising to the transdisciplinary challenge of dealing with this complexity in the face of global drivers of change (climate change, development pressures), recognizing that it is a challenge for everyone, not just academia.
Exploring the effects of climate change on marine species using linked dataPrashant Gupta
This is the project we (Prashant Gupta, Arne Martin Lemenz, Tamara Bobic and Brian Mitchell) did at the ESWC summer school 2014. The project used semantic technologies to integrate various data models - Ecoscope, Fishbase and Dbpedia - to explore the effects of climate change on Marine species.
What is actually ESS?
Environmental Systems and Societies is an introduction to environmental science, which overlaps significantly with the IB Geography syllabus. It is science applied to ideas presented in geography, economics, and TOK.
ESS syllabus covers eight major topics: foundations of the course and its major ideas, ecosystem structure and function, biodiversity, water resources, soil systems and food production, atmospheric science, climate change and energy production, and the interaction between human populations and resource use. We study plants, animals, energy, ecosystems, food systems, carbon and nutrient cycling, cultures…basically anything having anything to do with living organisms and the way they interact with people and the physical environment.
https://www.esstutor.net/ess/ess-syllabus/
Interaction network of three insect herbivoresWei-Ting Lin
I analyzed population time series data, SEM and cage experiments, I identified the dynamic interactions web between three insect herbivores. [Manuscrip in prep.]
This presentation supports the IB Environmental System and Societies Diploma Programme course.
Extensive support material can be found at www.sciencebitz.com
Additional review and revision material is available as an iTunesU course at
https://itunesu.itunes.apple.com/enroll/DEZ-HWS-HNJ
Energy availability, metabolic niche dynamics, and connectivity alter assembl...Craig McClain
Energy availability has long been recognized as a predictor of community structure, but causal relationships between energy availability and community structure remain unclear. One challenge is that determinants of available energy in natural systems are diverse and often unidentifiable. Multiple, functionally distinct sources of energy exist in terrestrial, freshwater, and coastal marine systems, and energy from these sources flows across landscapes and habitat boundaries. Another challenge is that “community structure” consists of three components—standing stock, trophic structure, and diversity—and energy availability does not consistently predict any one component. Understanding processes underlying patterns of community structure requires identifying tradeoffs between standing stock, trophic structure and diversity, yet such studies are rarely done. Wood-fall communities in the deep sea are an ideal test system for many theories about community assembly and energetic theory for three reasons. First, the amount of energy available to the community can be precisely manipulated in the form of wood mass. Second, flows of energy from wood through the community can be easily tracked because animals supported by wood are isotopically distinct from other animals in the background benthos. Finally, the entire community associated with a wood fall can be sampled, allowing for accurate estimates of standing stock. For these reasons, deep-sea wood falls make possible accurate joint analysis of standing stock, trophic structure, and diversity as a function of energy availability. I will discuss and identify the tradeoffs in energetic processes that regulate the biodiversity and structure of communities, using ROV/submersible-deployed wood falls.
Five most significant findings from water resourcesMrinmoy Majumder
From 23 million-year-old sediments to provide insights in the defense against climate change to the most inexpensive seawater desalination unit using passive solar energy, this week has lot to offer if you are interested in water-based sustainability.
IARU Global Challenges 2014 Cornell Tracking our declineSarah Cornell
There is growing attention to the global risks - not just local impacts - of present rates of biodiversity loss. It is worth keeping in mind that 'biodiversity loss' actually means the destruction (sometimes irreversible) – by us, people – of living organisms, Earth's 'genetic library', species, ecosystems and habitats. The fact that ecosystems are complex, adaptive, and locally specific means they can't be adequately represented in a single global measure. But without any overarching global perspective on losses, the locally contingent measures are 'untethered' to the real risks of systemic change. Scientists of many kinds are rising to the transdisciplinary challenge of dealing with this complexity in the face of global drivers of change (climate change, development pressures), recognizing that it is a challenge for everyone, not just academia.
Exploring the effects of climate change on marine species using linked dataPrashant Gupta
This is the project we (Prashant Gupta, Arne Martin Lemenz, Tamara Bobic and Brian Mitchell) did at the ESWC summer school 2014. The project used semantic technologies to integrate various data models - Ecoscope, Fishbase and Dbpedia - to explore the effects of climate change on Marine species.
What is actually ESS?
Environmental Systems and Societies is an introduction to environmental science, which overlaps significantly with the IB Geography syllabus. It is science applied to ideas presented in geography, economics, and TOK.
ESS syllabus covers eight major topics: foundations of the course and its major ideas, ecosystem structure and function, biodiversity, water resources, soil systems and food production, atmospheric science, climate change and energy production, and the interaction between human populations and resource use. We study plants, animals, energy, ecosystems, food systems, carbon and nutrient cycling, cultures…basically anything having anything to do with living organisms and the way they interact with people and the physical environment.
https://www.esstutor.net/ess/ess-syllabus/
Interaction network of three insect herbivoresWei-Ting Lin
I analyzed population time series data, SEM and cage experiments, I identified the dynamic interactions web between three insect herbivores. [Manuscrip in prep.]
Using agent-based simulation for socio-ecological uncertainty analysisBruce Edmonds
A talk given in the MMU Big Data Centrem, 30th October 2018.
Both social and ecological systems can be highly complex, but the interaction between these two worlds - a socio-ecological system (SES) - can add even greater levels. However, the maintenance of SES are vital to our well being and the health of the planet. We do not know how such systems work in practice and we lack good data about them (especially the ecological side) so predicting the effect of any particular policy is infeasible. Here we present an approach which tries to understand some of the ways in which SES may go wrong, but constructing different complex simulation models and analysing the emergent outcomes. These, in silico, examples can allow for the institution of targeted data gathering instruments that give the earliest possible warning of deleterious outcomes, and thus allow for timely remedial responses. An example of this approach applied to fisheries is described.
Essay On College Education. 24 Greatest College Essay Examples RedlineSPMelissa Otero
College Essay Examples - 9 in PDF Examples. College and Education - Free Essay Example PapersOwl.com. Essay websites: Essay on the importance of college education. College Education: Should Education be Free Essay. St Joseph Hospital: College Application Essay. Importance of college education essay. Free importance of education .... 004 Essay Example Why Is College Important On Importance Of Education .... College Essay Format: Simple Steps to Be Followed. FREE 11 Sample College Essay Templates in MS Word PDF. Argumentative essay on college education. Sample College Application Essay 5. 021 10067 Thumb College Education Essay Thatsnotus. How to Write In College Essay Format OCC NJ. College Admissions Essay Workshop - 9 Types of Supplemental Essays .... Admission essay: Being a college student essay. This is How You Write a College Essay College application essay .... College Essay: Graduate school essay sample. Why College Should Be Cheaper Essay. Essay On The Importance Of College Education. 24 Greatest College Essay Examples RedlineSP. Why Do You Think College Education Is Important Essay. Impressive Essay On Education Thatsnotus. Essay for education - College Homework Help and Online Tutoring.. College education essay - 24/7 Homework Help.. Education in College - Free Essay Example PapersOwl.com. Everyone Should Enjoy a Free College Education - Free Essay Example .... 26 Outstanding College Essay Examples / - Example of a college essay .... Writing An Essay To Get Into College - Writing a strong college .... College essay: Importance of college education essay. Essay on why college education is important Essay On College Education Essay On College Education. 24 Greatest College Essay Examples RedlineSP
The repository ecology: an approach to understanding repository and service i...R. John Robertson
An increasing number of university institutions and other organisations are deciding to deploy repositories and a growing number of formal and informal distributed services are supporting or capitalising on the information these repositories provide. Despite reasonably well understood technical architectures, early majority adopters may struggle to articulate their place within the actualities of a wider information environment. The idea of a repository ecology provides developers and administrators with a useful way of articulating and analysing their place in the information environment, and the technical and organisational interactions they have, or are developing, with other parts of such an environment. This presentation will provide an overview of the concept of a repository ecology and examine some examples from the domains of scholarly communications and elearning.
Can machines understand the scientific literaturepetermurrayrust
With over 5000 scientific articles per day we need machines to help us understand the content. This material is to be used at an interactive session for the Science Society at Trinity College Cambridge UK
FREEDOM OF EXPRESSION2MichaelScarcity theory-States tha.docxhanneloremccaffery
FREEDOM OF EXPRESSION 2
Michael:
Scarcity theory-
States that there are limited frequency allocations for radio and television stations on the electromagnetic spectrum. In the 1920s, when the radio industry requested the government to intervene and provide regulatory oversight to minimize the confusion of frequency crowding, it was indeed an unprecedented move by a market-driven, commercial industry. What started as an unbiased mediator for broadcasters in the 1920s has blossomed into a juggernaut with an established regulatory agency, known as the FCC, which wields an enormous amount of regulatory influence and oversight (Hendricks, J 2009).
Has the Government finally overstayed their welcome? Telecommunications Act of 1996 is the first major overhaul of telecommunications law in almost 62 years. The goal of this new law is to let anyone enter any communications business -- to let any communications business compete in any market against any other. The Telecommunications Act of 1996 has the potential to change the way we work, live and learn (FCC)
Hendricks, J. A. 2009. Media Policy and Regulation, Sage Reference Publications , 21st Century Communication: A Reference Handbook Ch. 95 p11. DOI: http://dx.doi.org/10.4135/9781412964005.n95
https://www.fcc.gov/general/telecommunications-act-1996
3 PAGES APA STYLE PAPER
In this assignment, you will investigate the biotic and abiotic structure and function of an ecosystem. You will also investigate how ecosystems recover from disturbance naturally and through human restoration.
Choose 1 of the following ecosystems:
Tropical rainforest
Grassland
Coral reef
Estuary
Desert
You will write an APA-style research paper about your choice of ecosystem, including the following elements:
Describe where this type of ecosystem might be located. Name 1 specific example.
Describe the structure of the ecosystem.
List at least 3 specific examples of both abiotic components and biotic components for the ecosystem type selected.
Describe the function of the ecosystem
In your own words, explain or define biogeochemical cycle.
Describe the steps in the carbon cycle as an example of one biogeochemical cycle.
Describe disturbance and recovery
Describe 1 natural and 1 human-caused disturbance to the ecosystem that you have chosen.
Describe the damage to the ecosystem for each example, including how the abiotic and biotic characteristics of the ecosystem changed.
Provide 2 examples of natural resources provided by the ecosystem that you have selected.
How can these be sustained into the future?
How can humans act as good stewards to assist ecosystem recovery? Provide 1 example specific to the ecosystem that you have chosen.
For assistance with your assignment, please use your text, other credible references, intellipath, and course materials.
Please submit your assignment in your assignment box.
Grading Rubric
70%
Content Development/Critical Thinking: Student uses relevant content to fully and accurately answer al ...
Project 1
Evaluation 31
Biology 1 (SCIH 025 062)
Be sure to include ALL pages of this project (including the directions and the assignment) when you send the project to your teacher for grading. Don’t forget to put your name and I.D. number at the top of this page!
This project contains a total of 100 points possible and will count for 14% of your overall grade for this course. Be sure to read all the instructions and assemble all the necessary materials before you begin. You can complete this entire project electronically by downloading and saving this editable copy of Project 1. You can complete all three parts using your word processing program, and save them in either .pdf (Portable Document Format), or .doc (Microsoft Word Document) format. When you have completed this project you can submit it electronically through the online course management system. Remember that a file that is larger than 5,000 K will NOT go through the online system. Check the instructions in the online course for more information.
This needs to be your own work. DO NOT copy and paste information from the sources that you use. You need to write everything you learn in your own words. REMEMBER: failing to cite sources or submitting another person's work as your own is PLAGIARISM, which will result in a failing grade.
Part A - Research an Ecosystem (possible 60 points)
Follow the procedures below to complete this part of the project. Save it as SCIH025062Project1A.doc
Objective
The objective of the first part of this project is for you to demonstrate your understanding of the complex interrelationships between organisms in an ecosystem, and their living and nonliving environment.
Procedure
Your job is to choose an ecosystem that interests you and research it. It can be one near your home, or far away. You are investigating an ecosystem NOT a biome, so if you wanted to investigate a ‘wetland’, chose a ‘wetland’ in a particular area, don’t investigate ‘wetlands’ in general.
You can organize your research in one of several different ways for submission. Be sure to pick the format that you enjoy the most to present your research and make the most of the tools that are available to you. You can choose between one of the following formats:
1.
Informational brochure
2.
Essay format
3.
Web site
4.
PowerPoint Presentation
Regardless of the format you choose, you should be sure to include all the required information as well as any pictures, graphics, web resource URLs, and other additional information that will make your project interesting as well as informational. DO NOT just fill in the outline with pertinent details. Create your project for an audience that is not familiar with your ecosystem. Include all the information they need to get the full understanding of the ecosystem that you are researching! Feel free to add pages to this document to make sure you have all the space you need.
**If you choose to complete your project in a non-doc ...
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1. IB Environmental Systems and Societies p. 1
Topic 2: Ecosystems and Ecology (25 hours)
2.5 Investigating Ecosystems
Significant Ideas:
➔ The description and investigation of ecosystems allows for comparisons to be made between different
ecosystems and for them to be monitored, modeled, and evaluated over time, measuring both natural
change and human impacts.
➔ Ecosystems can be better understood through the investigation and quantification of their
components.
Knowledge & Understanding: Use these notes to familiarize yourself with ESS terminology and concepts.
2.5.1 The study of an
ecosystem requires that it
be named and located, for
example Deinikerwald in
Baar, Switzerland – a mixed
deciduous – coniferous
managed woodland.
Name a protected and studied ecosystem in your home country (or Tanzania!).
Name:
Location (draw map in box):
Biome type:
Famous/protected flora and fauna:
Other significant features:
Original Source: International School of Prague
https://sites.google.com/site/environmentalsystemssocieties/home
Modified by Brad Kremer, May 2017
2. IB Environmental Systems and Societies p. 2
Topic 2: Ecosystems and Ecology (25 hours)
2.5.2 Organisms in an
ecosystem can be identified
using a variety of tools
including keys, comparison
to herbarium or specimen
collections, technologies
and scientific expertise.
Why is species identification an important part of studying an ecosystem and its
biodiversity?
A. Dichotomous Key
B. Herbarium
C. Specimen collection
2.5.3 Sampling strategies
may be used to measure
biotic and abiotic factors
and their change in space,
along an environmental
gradient, over time, through
succession, or before and
after a human impact (for
example, as part of an EIA).
Briefly fill in the following table:
Sampling Method Target Organism(s) Resulting Information
TRANSECTS
(line or belt)
QUADRATS
Non-motile (non-
moving) e.g. plants,
sea urchins
CAPTURE - MARK -
RECAPTURE
Motile organisms
(birds, fish,
mammals)
Original Source: International School of Prague
https://sites.google.com/site/environmentalsystemssocieties/home
Modified by Brad Kremer, May 2017
3. IB Environmental Systems and Societies p. 3
Topic 2: Ecosystems and Ecology (25 hours)
2.5.4 Measurements should
be repeated to increase
reliability of data. The
number of repetitions
required depends on the
factor being measured.
Using the targets below as a metaphor for experimental data, use the terms
valid/invalid and reliable/not reliable to describe each set of “data”. [hint: valid
is how close the data comes to the true value (also called accuracy) and reliable
is how repeatable each data point is (also called precision)]
2.5.5 Methods for
estimating the biomass and
energy of trophic levels in a
community include
measurement of dry mass,
controlled combustion and
extrapolation from samples.
Data from these methods
can be used to construct
ecological pyramids.
Explain the reason behind the inverted biomass pyramid from the English
Channel.
Original Source: International School of Prague
https://sites.google.com/site/environmentalsystemssocieties/home
Modified by Brad Kremer, May 2017
4. IB Environmental Systems and Societies p. 4
Topic 2: Ecosystems and Ecology (25 hours)
2.5.6 Methods for
estimating the abundance
of non-motile organisms
include the use of quadrats
for making actual counts,
measuring population
density, percentage cover
and percentage frequency.
For each measurement, explain what the term means, the units of measure,
and any applicable formulas. Recall your experience with the random sampling
stations in class. Use the sample quadrats below to help you drawn an example
of how each measurement could be taken.
POPULATION DENSITY:
PERCENT COVER:
PERCENT FREQUENCY:
Original Source: International School of Prague
https://sites.google.com/site/environmentalsystemssocieties/home
Modified by Brad Kremer, May 2017
5. IB Environmental Systems and Societies p. 5
Topic 2: Ecosystems and Ecology (25 hours)
2.5.7 Direct and indirect
methods for estimating the
abundance of motile
organisms can be described
and evaluated.
Direct methods include actual counts and sampling.
Indirect methods include the use of capture – mark – recapture with the
application of the Lincoln index.
Estimate the size of the population of mice using the circles below. Calculate the
percent error.
2.5.8 Species richness is the
number of species in a
community and is a useful
comparative measure.
Which ecosystem (A or B) is more RICH? Explain. Which ecosystem is more EVEN
and what does this mean?
Original Source: International School of Prague
https://sites.google.com/site/environmentalsystemssocieties/home
Modified by Brad Kremer, May 2017
6. IB Environmental Systems and Societies p. 6
Topic 2: Ecosystems and Ecology (25 hours)
2.5.9 Species diversity is a
function of the number of
species and their relative
abundance and can be
compared using an index.
Students are only expected
to be able to apply and
evaluate the result of the
Simpson diversity index.
Using this formula, the higher the result (D), the greater the species diversity.
This indication of diversity is only useful when comparing two similar habitats,
or the same habitat over time.
Define each variable in this formula. Explain which term represents evenness
and which term represents richness.
Applications and skills – these will be addressed with practice labs, class and/or field investigations, and real
exam questions – you may leave the spaces blank for now.
2.5.AS1 Design and carry out ecological investigations.
2.5.AS2 Construct simple identification keys for up to eight species.
2.5.AS3 Evaluate sampling strategies.
2.5.AS4 Evaluate methods to measure at least three abiotic factors in an ecosystem.
2.5.AS5 Evaluate methods to investigate the change along an environmental gradient and the effect of a
human impact in an ecosystem.
2.5.AS6 Evaluate methods for estimating biomass at different trophic levels in an ecosystem.
2.5.AS7 Evaluate methods for measuring or estimating populations of motile and non-motile organisms.
2.5.AS8 Calculate and interpret data for species richness and diversity.
2.5.AS9 Draw graphs to illustrate species diversity in a community over time, or between communities.
Original Source: International School of Prague
https://sites.google.com/site/environmentalsystemssocieties/home
Modified by Brad Kremer, May 2017