
Trophic Levels - International School Bangkok
... All organisms need energy to live. Where do you get your energy? How did the things you eat get their energy? Trace the energy back to its source. What is the source of energy for (almost) all living things? ...
... All organisms need energy to live. Where do you get your energy? How did the things you eat get their energy? Trace the energy back to its source. What is the source of energy for (almost) all living things? ...
Food Webs - web.biosci.utexas.edu
... Species in communities vary widely in abundance One or a few common species with many many rare species Important concept: Rare species can be important in communities: many weak interactions can lend stability Important concept: Some species there by accident ...
... Species in communities vary widely in abundance One or a few common species with many many rare species Important concept: Rare species can be important in communities: many weak interactions can lend stability Important concept: Some species there by accident ...
Community Ecology
... caudatum, grown separately-did well but tog. P. aurelia drove P. caudatum to extinction Two species with similar needs for same limiting resources cannot coexist in the same place The better adapted of the two will replace the other ...
... caudatum, grown separately-did well but tog. P. aurelia drove P. caudatum to extinction Two species with similar needs for same limiting resources cannot coexist in the same place The better adapted of the two will replace the other ...
11/7 - Fairfield Faculty
... Models of consumer/resource interactions - math helps understand mechanisms ...
... Models of consumer/resource interactions - math helps understand mechanisms ...
FWM 318 Population analysis
... For some study such as social behaviour, errors in age-sex determination is unacceptable. For species that take a year or more to attain breeding conditions, one usually determine their age in annual increment or year classes. For those that breed atg less than one year of age and rarely exceed thre ...
... For some study such as social behaviour, errors in age-sex determination is unacceptable. For species that take a year or more to attain breeding conditions, one usually determine their age in annual increment or year classes. For those that breed atg less than one year of age and rarely exceed thre ...
Community interactions
... Think about all of the relationships you have. Some might be helpful to you, some might not affect you, and others might be hard for you to maintain. Take 4 minutes to name 3 different ...
... Think about all of the relationships you have. Some might be helpful to you, some might not affect you, and others might be hard for you to maintain. Take 4 minutes to name 3 different ...
Ecology13
... communities that covers a large area • Characterized by certain soil and climate conditions and specific plants and animals. –Variations in plants and animals help different species survive under different conditions in different ...
... communities that covers a large area • Characterized by certain soil and climate conditions and specific plants and animals. –Variations in plants and animals help different species survive under different conditions in different ...
BIOTIC COMMUNITY Community : In an environment or habitat
... Permanent parasites live in contact with host throughout their life. Eg. Ascaris, Taenia, Entmoeba BIOTIC STABILITY One of the principle of nature is stability amidst diversity. The larger the number of diverse forms present in a community, the more stable that community will be. It means that the s ...
... Permanent parasites live in contact with host throughout their life. Eg. Ascaris, Taenia, Entmoeba BIOTIC STABILITY One of the principle of nature is stability amidst diversity. The larger the number of diverse forms present in a community, the more stable that community will be. It means that the s ...
The Science of Ecology
... - Where do organisms live? & Why? - How many organisms are present? & Why? ...
... - Where do organisms live? & Why? - How many organisms are present? & Why? ...
Ecology
... another that they can breed. Population are groups of individuals that belong to the same species and live in the same area. Communities are assemblages of the different populations that live together in a defined area. Ecosystem is a collection of all the organisms that live together in a particula ...
... another that they can breed. Population are groups of individuals that belong to the same species and live in the same area. Communities are assemblages of the different populations that live together in a defined area. Ecosystem is a collection of all the organisms that live together in a particula ...
What is Climate? - Castle High School
... Interact with each other in the ecosystem Can you think of any examples of these interactions? ...
... Interact with each other in the ecosystem Can you think of any examples of these interactions? ...
ap biology
... c. decreased activity of bacterial decomposers d. eutrophication e. asphyxiation of fish 10. Lichens play an important role in the process of ecological succession since they a. represent secondary consumers b. initiate pond succession c. are the climax vegetation in a beach community d. cause eutro ...
... c. decreased activity of bacterial decomposers d. eutrophication e. asphyxiation of fish 10. Lichens play an important role in the process of ecological succession since they a. represent secondary consumers b. initiate pond succession c. are the climax vegetation in a beach community d. cause eutro ...
Species richness and diversity
... Wolf predation near aspen trees increases Elk change browsing habits Aspen increase ...
... Wolf predation near aspen trees increases Elk change browsing habits Aspen increase ...
Designing Spatially Explicit Agent
... • Need to keep the behaviors and attributes simple • The group behaviors are typically more complex than expected from the individuals • Model a population – Convert “groups” of individuals to populations when they cluster ...
... • Need to keep the behaviors and attributes simple • The group behaviors are typically more complex than expected from the individuals • Model a population – Convert “groups” of individuals to populations when they cluster ...
Population growth & regulation
... The “transpose” of the mortality curve is a survivorship curve. This gives an idea of how many individuals make it each yearthe mortality pressures on that organism. The shape of the survivorship curve matters. Different shapes are associated with different life history patterns. Organisms that have ...
... The “transpose” of the mortality curve is a survivorship curve. This gives an idea of how many individuals make it each yearthe mortality pressures on that organism. The shape of the survivorship curve matters. Different shapes are associated with different life history patterns. Organisms that have ...
Notes - Humble ISD
... b. Commensalism – In commensalism, only one organism benefits, but the other organism ________________. For example, barnacles are small ___________________ that often attach themselves to whales. They do not harm the whales, and the barnacles benefit from the _______________________________________ ...
... b. Commensalism – In commensalism, only one organism benefits, but the other organism ________________. For example, barnacles are small ___________________ that often attach themselves to whales. They do not harm the whales, and the barnacles benefit from the _______________________________________ ...
3-11 Ecological Relationships
... • A close and often long term interaction between two or more different species. • The relationship between these different species may be neutral, negative or positive. • There are 4 types of symbiotic relationships we will explore today ...
... • A close and often long term interaction between two or more different species. • The relationship between these different species may be neutral, negative or positive. • There are 4 types of symbiotic relationships we will explore today ...
arXiv:q-bio/0504020v1 [q-bio.PE] 16 Apr 2005
... Enormous progress has been made in the twentieth century in the domain of sub-cellular and cell biology, particularly in area of molecular genetics and genomics. One of the challenges of the twenty-first century will be to link the insight gained from the molecular level research on uni-cellular as ...
... Enormous progress has been made in the twentieth century in the domain of sub-cellular and cell biology, particularly in area of molecular genetics and genomics. One of the challenges of the twenty-first century will be to link the insight gained from the molecular level research on uni-cellular as ...
edge effects - AaronFreeman
... Species that play roles affecting many other organisms in an ecosystem Strong interaction with other species affect health and survival of species species whose removal would effect many others as they play a critical role loss of species can result in population crash or extinction critical roles: ...
... Species that play roles affecting many other organisms in an ecosystem Strong interaction with other species affect health and survival of species species whose removal would effect many others as they play a critical role loss of species can result in population crash or extinction critical roles: ...
Functional Ecology / AnaEE-France meeting, 28
... II) Stoichiometry of biogeochemical cycles at various scales The cycling of major elements transcends all levels of biological organization from cells up to the globe. Because of the complexity of involved processes and element-specific properties of the cycles, the different elements are commonly s ...
... II) Stoichiometry of biogeochemical cycles at various scales The cycling of major elements transcends all levels of biological organization from cells up to the globe. Because of the complexity of involved processes and element-specific properties of the cycles, the different elements are commonly s ...
Theoretical ecology

Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.