The document discusses key concepts in ecology such as ecosystems, energy flow, biogeochemical cycles, species interactions, and provides Lake Victoria and global climate change as case studies. It describes Lake Victoria's introduction of the Nile perch in 1960 and invasion of water hyacinth in 1990 that disrupted the ecosystem's balance. It also outlines the increasing levels of atmospheric CO2 and rising global temperatures due to human activities and some international efforts to address climate change such as the Kyoto Protocol.
Topic 2.2 communities and ecosystems photosynthesis and respiration ssNigel Gardner
Topic 2.2 Communities and Ecosystem - Photosynthesis and Respiration for the IB DP Environmental Systems and Societies Course.
The role of photosynthesis in the ecosystems
Limits to photosynthesis in the ecosystem
Respiration in the ecosystem
Foundation of energy flow in the ecosystem
Topic 2.2 communities and ecosystems photosynthesis and respiration ssNigel Gardner
Topic 2.2 Communities and Ecosystem - Photosynthesis and Respiration for the IB DP Environmental Systems and Societies Course.
The role of photosynthesis in the ecosystems
Limits to photosynthesis in the ecosystem
Respiration in the ecosystem
Foundation of energy flow in the ecosystem
This publication is a collaborative effort of the Golden
Triangle chapter of Advocis (The Financial Advisors
Association of Canada) and Waterloo-Wellington LEAVE
A LEGACY™, a program of the Canadian Association of Gift
Planners (CAGP-ACPDP™), to provide valuable information to
the readers on planned gifting and charitable giving.
Sportiek Reizen is een wintersportspecialist en helpt iedereen naar het vinden van hun ideale wintersportvakantie.
Sportiek onderscheidt zich door:
• het aanbieden van Nederlandse skileraren tijdens de schoolvakantieweken voor kinderen van ca. 5 tot 10 jaar. En de gehele winter Nederlandstalige reisleiding die diverse activiteiten organiseert zoals een rodelavond met glühwein, een sneew-BBQ en nog veel meer activiteiten.
• het unieke persoonlijke contact wat zij heeft meer haar gasten. Het Sportiek-personeel is ervaren en adviseert / offreert geheel vrijblijvend.
• Zeer scherpe prijzen door lage overheadkosten en het uitsluiten van tussenschakels zoals de reisbureaus
• al ruim 25 jaar haar expertise heeft kunnen uitdiepen en zich nu een “Les Sybelles-specialist” mag noemen.
• Sportiek lid is van Respect the Mountains en informeert haar bergsporters over het behoud van de natuur en leefomgeving in de bergen.
Voor meer info: www.sportiek.com of bel gerust +31(0)20-470 26 26.
Energy Flow and Nutrient Cycle - Environment Science Community and EcosystemPreetiSinha52
Energy Flow and Nutrient Cycle - Environment Science Community and Ecosystem Concept
Energy flows through an ecosystem from producers to consumers. Energy flows from one trophic level to the next.
(troph = feeding)
Nutrients (matter) cycle in an ecosystem.
The processes of photosynthesis and aerobic respiration are important in nutrient cycling and energy flow.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
2. Lake Victoria
Freshwater lake in Africa
Formerly home to ≈ 400 species of cichlids
1960: Nile perch
introduced
1990: water hyacinth
invaded
Today, ecological
imbalance; why?
3. What Is Ecology?
Literally study of one’s “house”
Interactions
Two components
Biotic
Abiotic
Broadest biological field of study
5. Goals Of Ecologists
Understand how ecosystems function
Make connections: landscape ecology
Connections among ecosystems
Great blue heron
6. Energy
Capacity or ability to do work
Flows through ecosystems
Why do organisms need energy?
Different kinds
Potential energy Kinetic energy
7. First Law of Thermodynamics
Energy cannot be
created or
destroyed
Energy can be
changed from one
form to another
8. Second Law of
Thermodynamics
When energy is changed from one form
to another, some is degraded into heat
Heat is a less usable form of energy
Increases entropy in the universe
10. Producers
Make their own food
Photosynthesis
Examples?
Lii
L
gh
gh
tt e
enne
errg
gyy
6CO2 + 6H2O + ------> C6H12O6 + 6O2
11. Consumers
Feed on other things
Herbivores
Carnivores
Omnivores
Detrivores
12. Decomposers
Break down dead organisms and waste
products
Examples?
13. Energy Flow
Energy passes from one organism to the
next
Trophic level: each step in this flow of
energy
Food chain: straight path
Food web
Interconnected food chains
More realistic than food chain; why?
17. Carbon Cycle
Essential component for life
Gas (CO2) in atmosphere
Several forms in ocean
Can take a long time—think fossil fuels
Photosynthesis Cellular respiration
CO2 Sugar CO2
25. Phosphorus Cycle
No atmospheric component
Phosphates used in DNA and ATP
(chemical energy)
Phosphates move through the food chain
Land Organism Organism Land
30. Species Interactions
No species lives in complete isolation
Symbiosis
Intimate relationship between members
of at least 2 species
Mutualism, commensalism, parasitism
Result of coevolution
Other interactions
Predation, competition
34. Species Interactions
Predation: consumption of one species by
another
Coevolution: “arms race”
35. Avoiding Predators
Mechanical defenses
Social groups
Camouflage
Protective chemicals
36. Species Interactions
Competition: two or more organisms
attempting to use the same resource
Intraspecific vs. interspecific
37. Keystone Species
Crucial to maintenance of an ecosystem
Loss affects many other
species
Examples?
This idea is being
challenged; why?
38. Case Study:
Global Climate Change
Atmospheric CO2 increased dramatically.
Why?
10 warmest years have occurred since 1990
2005 warmest
1998 second warmest
2002 third warmest
Earth’s temperatures may rise 1.8o – 4.0o C
(3.2o – 7.2o F) by end of 21st century
What could occur?
39. Case Study:
Global Climate Change
Kyoto Protocol – International climate change conference
– Kyoto, Japan 1997
Highly developed countries to cut
CO2 emissions ~ 5.2% by 2012
US Department of Energy
Automotive vehicles
designed for better gas
mileage
High efficiency wind
turbines