PVA
... + allow estimation of extinction probability (run 1,000 simulations, tally number of extinction events) + indicates which factors are most important in declines – requires large amounts of data – not generalizable - build anew for each species ...
... + allow estimation of extinction probability (run 1,000 simulations, tally number of extinction events) + indicates which factors are most important in declines – requires large amounts of data – not generalizable - build anew for each species ...
Lesson 6 - Kingsborough Community College
... d. the biotic potential increases each year e. environmental resistance declines each year 23. When a population has inhabited an area for a long time and the population size has stabilized because of resource limitations: a. Carrying capacity has been reached b. Density dependence occurs c. Predati ...
... d. the biotic potential increases each year e. environmental resistance declines each year 23. When a population has inhabited an area for a long time and the population size has stabilized because of resource limitations: a. Carrying capacity has been reached b. Density dependence occurs c. Predati ...
Biodiversity and Sustainable Development
... chance to even name the vast majority of taxa, much less to appreciate the unique services they provide within ecosystems. Nor do we know the complex interrelationships that exist between species, and between other species and our own survival. It may well be that taking out one species in a remote ...
... chance to even name the vast majority of taxa, much less to appreciate the unique services they provide within ecosystems. Nor do we know the complex interrelationships that exist between species, and between other species and our own survival. It may well be that taking out one species in a remote ...
Summer Quiz #1 - Plain Local Schools
... Concept 54.1 1. Under which of the following circumstances would interspecific competition be most obvious? A. when resources are most abundant B. in the presence of a keystone species C. when organisms have quite different ecological niches D. among species whose trophic levels are different E. whe ...
... Concept 54.1 1. Under which of the following circumstances would interspecific competition be most obvious? A. when resources are most abundant B. in the presence of a keystone species C. when organisms have quite different ecological niches D. among species whose trophic levels are different E. whe ...
CONSERVATION496.5 KB
... Some experts estimate that one animal species is wiped off the face of the Earth every hour. With the ravages of pollution, shrinking habitats and the ever-expanding human population, the situation is likely to get worse. Zoos are turning to cryogenics in their efforts to stockpile genetic material ...
... Some experts estimate that one animal species is wiped off the face of the Earth every hour. With the ravages of pollution, shrinking habitats and the ever-expanding human population, the situation is likely to get worse. Zoos are turning to cryogenics in their efforts to stockpile genetic material ...
Threatened species projects (Stream two) Threatened species
... If you would like to receive this publication in an alternative format, please telephone the DEPI Customer Service Centre on 136186, email [email protected] or via the National Relay Service on 133 677 www.relayservice.com.au. This document is also available on the internet at www.dep ...
... If you would like to receive this publication in an alternative format, please telephone the DEPI Customer Service Centre on 136186, email [email protected] or via the National Relay Service on 133 677 www.relayservice.com.au. This document is also available on the internet at www.dep ...
Part I: The Chain vs. the Web Fundamental Question: How does
... type of animal. Predators may hunt and attack actively for their prey, or they may hide and wait patiently as their prey approaches closer to them before attacking. Once the prey is obtained, the predator may slowly chew it or swallow it whole. Some predators may use venom to paralyze its prey. Othe ...
... type of animal. Predators may hunt and attack actively for their prey, or they may hide and wait patiently as their prey approaches closer to them before attacking. Once the prey is obtained, the predator may slowly chew it or swallow it whole. Some predators may use venom to paralyze its prey. Othe ...
Term Definition Example
... Parent organism splits into Sea Stars and flatworms pieces, each of which can grown into a new organism. ...
... Parent organism splits into Sea Stars and flatworms pieces, each of which can grown into a new organism. ...
Leibold et al. 2004
... Mouquet & Loreau 2002, 2003). The interactions and demography of local communities could also be influenced by other kinds of spatial dynamics, such as the flow of individuals that create mass effects (Shmida & Wilson 1985) and source–sink dynamics (Holt 1985; Pulliam 1988). These dynamics involve i ...
... Mouquet & Loreau 2002, 2003). The interactions and demography of local communities could also be influenced by other kinds of spatial dynamics, such as the flow of individuals that create mass effects (Shmida & Wilson 1985) and source–sink dynamics (Holt 1985; Pulliam 1988). These dynamics involve i ...
The metacommunity concept
... Mouquet & Loreau 2002, 2003). The interactions and demography of local communities could also be influenced by other kinds of spatial dynamics, such as the flow of individuals that create mass effects (Shmida & Wilson 1985) and source–sink dynamics (Holt 1985; Pulliam 1988). These dynamics involve i ...
... Mouquet & Loreau 2002, 2003). The interactions and demography of local communities could also be influenced by other kinds of spatial dynamics, such as the flow of individuals that create mass effects (Shmida & Wilson 1985) and source–sink dynamics (Holt 1985; Pulliam 1988). These dynamics involve i ...
4th - Living Systems PBL Unit Question Map
... What effect do the deer have? What is its niche? 4.5de 1. The Jenga tower represents an forest ecosystem. Each block represents one different native species in our ecosystem. Give students specific examples of plants and animals that live in your local ecosystem. 2. Take turns taking one block out a ...
... What effect do the deer have? What is its niche? 4.5de 1. The Jenga tower represents an forest ecosystem. Each block represents one different native species in our ecosystem. Give students specific examples of plants and animals that live in your local ecosystem. 2. Take turns taking one block out a ...
APES Final Exam Review – Fall 2016
... Genetic Diversity & variability Ch. 6 – Population & Community Ecology Population – know how to calculate population density, birth rates, death rates, growth rates, doubling time Density-dependent vs. density –independent factors Define population ecology. Symbiosis – what are the 3 main ...
... Genetic Diversity & variability Ch. 6 – Population & Community Ecology Population – know how to calculate population density, birth rates, death rates, growth rates, doubling time Density-dependent vs. density –independent factors Define population ecology. Symbiosis – what are the 3 main ...
ecology 2015 - Warren County Schools
... When disease (fungal, parasitic, bacterial, viral) is introduced to a population, population numbers are affected. Only the strongest individuals overcome the disease and survive. ...
... When disease (fungal, parasitic, bacterial, viral) is introduced to a population, population numbers are affected. Only the strongest individuals overcome the disease and survive. ...
File
... Habitat (Where to live?) – a physical area in which an organism lives; different types of environment which provide food and shelter for living things. Niche (How to live?) – the role played by a species in a biological community; Niche – the total set of environmental factors that determine spe ...
... Habitat (Where to live?) – a physical area in which an organism lives; different types of environment which provide food and shelter for living things. Niche (How to live?) – the role played by a species in a biological community; Niche – the total set of environmental factors that determine spe ...
The Virtual Woodland
... known as predators. Their food is called their prey. It can be seen, therefore, that such a relationship is dependent on population size. Other factors limiting population size include sunlight (daylight hours), space, shelter, availability of mates and direct or indirect human activity. Feeding rel ...
... known as predators. Their food is called their prey. It can be seen, therefore, that such a relationship is dependent on population size. Other factors limiting population size include sunlight (daylight hours), space, shelter, availability of mates and direct or indirect human activity. Feeding rel ...
Vocabulary Unit Four The Ecosystem and the Environment # 1-10
... 1. Population Size – total number of species living in a defined area 2. Population Density – the number of a species in a specific area (measured based on that area- surface or cubic) 3. Limiting factors – anything that has impact which changes the population of a species (land, food water sources, ...
... 1. Population Size – total number of species living in a defined area 2. Population Density – the number of a species in a specific area (measured based on that area- surface or cubic) 3. Limiting factors – anything that has impact which changes the population of a species (land, food water sources, ...
PPT for Aug 29 HW
... Some Terms and Definitions • Ecosystems: A grouping of plants, animals, and microbes occupying an explicit unit of space and interacting with each other and their environment. • Ecotone: Transitional region between different ecosystems. ...
... Some Terms and Definitions • Ecosystems: A grouping of plants, animals, and microbes occupying an explicit unit of space and interacting with each other and their environment. • Ecotone: Transitional region between different ecosystems. ...
PART
... 6. When organisms live together with others of their species, this population has properties that cannot be discovered by studying individuals alone. 7. Populations of many species occur together in complex ecological communities. a. Variation and evenness of distribution within a community is measu ...
... 6. When organisms live together with others of their species, this population has properties that cannot be discovered by studying individuals alone. 7. Populations of many species occur together in complex ecological communities. a. Variation and evenness of distribution within a community is measu ...
video slide - Diamond Bar High School
... regulated by a mixture of densityindependent and density dependent factors • Many populations are fairly stable and near carrying capacity that and are regulated by density-dependent factors • Many others show short-term fluctuations due to density-independent factors ...
... regulated by a mixture of densityindependent and density dependent factors • Many populations are fairly stable and near carrying capacity that and are regulated by density-dependent factors • Many others show short-term fluctuations due to density-independent factors ...
1/ Biodiversity and factors affecting it. a/ Human factors
... - Impact of air/soil moisture on the distribution of organisms. c/ Biotic factors (i.e. living influences on an ecosystem). P166-170 In order to study biotic factors, plants and animals living in an ecosystem must be sampled using techniques such as pitfall traps, quadrats etc…. They must then be id ...
... - Impact of air/soil moisture on the distribution of organisms. c/ Biotic factors (i.e. living influences on an ecosystem). P166-170 In order to study biotic factors, plants and animals living in an ecosystem must be sampled using techniques such as pitfall traps, quadrats etc…. They must then be id ...
Relationships for Survival: The Role of Bioluminescence
... species they observed interacting in Creatures of Light, and record the type of interaction on the worksheet. Encourage them to try to remember as many relationships between organisms as possible. Note: This part can be done as a group discussion, with students writing the examples as they’re offere ...
... species they observed interacting in Creatures of Light, and record the type of interaction on the worksheet. Encourage them to try to remember as many relationships between organisms as possible. Note: This part can be done as a group discussion, with students writing the examples as they’re offere ...
Ryan Johnson
... Many large predators populations such as tuna, sharks, and turtles are being driven to low levels. Large predators are very important to ocean diversity. Removing a keystone species can have a top to bottom effect on the ecosystem. Because of these concerns marine scientists are calling for large-sc ...
... Many large predators populations such as tuna, sharks, and turtles are being driven to low levels. Large predators are very important to ocean diversity. Removing a keystone species can have a top to bottom effect on the ecosystem. Because of these concerns marine scientists are calling for large-sc ...
Andow et al 1990
... The Landscape Ecology of Invasive Spread • Question: How is spatial pattern expected to affect invasive spread? • Premise: Habitat loss and fragmentation leads to spread of invasives • Definition: Landscape ecology: not regional level but the study of spatial pattern of resources, habitat, etc. on e ...
... The Landscape Ecology of Invasive Spread • Question: How is spatial pattern expected to affect invasive spread? • Premise: Habitat loss and fragmentation leads to spread of invasives • Definition: Landscape ecology: not regional level but the study of spatial pattern of resources, habitat, etc. on e ...
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.