Section 2 Patterns in Communities Chapter 20 Species Richness
... Species Richness, continued • Community Stability and Species Richness – Disturbances can alter a community by eliminating or removing organisms or altering resource availability. – Species richness may improve a community’s stability. – Areas of low species richness may be less stable in the event ...
... Species Richness, continued • Community Stability and Species Richness – Disturbances can alter a community by eliminating or removing organisms or altering resource availability. – Species richness may improve a community’s stability. – Areas of low species richness may be less stable in the event ...
Population Ecology - mshsRebeccaMazoff
... •Most populations oscillate around the carrying capacity. When a population goes above the carrying capacity, the environment can not sustain it the population will fall. If it falls below the carrying capacity, then resources are plentiful and population will increase. ...
... •Most populations oscillate around the carrying capacity. When a population goes above the carrying capacity, the environment can not sustain it the population will fall. If it falls below the carrying capacity, then resources are plentiful and population will increase. ...
Ecology - Warren County Schools
... area. Communities are assemblages of different populations that live together in a defined area ...
... area. Communities are assemblages of different populations that live together in a defined area ...
Biology 30 Chapter 20 - Vegreville Composite High
... these are factors such as limits to food supply, disease, and predation often problems involving density-dependent factors are alleviated when a population density returns to lower levels ...
... these are factors such as limits to food supply, disease, and predation often problems involving density-dependent factors are alleviated when a population density returns to lower levels ...
Ecology Powerpoint
... – Ecosystem – different communities and their non-living environment • Community – different populations living in the same area – Population – many members of 1 species living in the same area » Species – group of similar organisms that can breed and produce fertile offspring » Organism – 1 member ...
... – Ecosystem – different communities and their non-living environment • Community – different populations living in the same area – Population – many members of 1 species living in the same area » Species – group of similar organisms that can breed and produce fertile offspring » Organism – 1 member ...
Ch 8 and 9_9weeks partial
... 1. The relationship between durian plants and flying foxes exemplifies a. mutualism and convergent evolution. d. commensalism and coevolution. b. mutualism and coevolution. e. parasitism and coevolution. c. commensalism and convergent evolution. 2. Flying foxes are recognized as a a. thriving specie ...
... 1. The relationship between durian plants and flying foxes exemplifies a. mutualism and convergent evolution. d. commensalism and coevolution. b. mutualism and coevolution. e. parasitism and coevolution. c. commensalism and convergent evolution. 2. Flying foxes are recognized as a a. thriving specie ...
Community Dynamics
... All species arriving on an unoccupied site can survive. Thus, the initial community composition is simply a function of who gets there first. Species that appear later simply arrived later or arrived early but grew more slowly. Late arriving species tolerate the presence of early species and grow de ...
... All species arriving on an unoccupied site can survive. Thus, the initial community composition is simply a function of who gets there first. Species that appear later simply arrived later or arrived early but grew more slowly. Late arriving species tolerate the presence of early species and grow de ...
Population Dynamics of a Ratio-Dependent Predator
... Future Research • Study ratio-dependent models with other harvesting policies, such as seasonal harvesting. • Investigate the dynamics of harvesting on the predator species or both species. • Study the model with a harvesting agent who wishes to maximize its profit. ...
... Future Research • Study ratio-dependent models with other harvesting policies, such as seasonal harvesting. • Investigate the dynamics of harvesting on the predator species or both species. • Study the model with a harvesting agent who wishes to maximize its profit. ...
Ground Rules, exams, etc. (no “make up” exams) Text: read
... were likely to be less stable than simpler systems May analyzed sets of randomly assembled Model Ecosystems. Jacobian matrices were Assembled as follows: diagonal elements were defined as – 1. All other interaction terms were equally likely to be + or – (chosen from a uniform random distribution ran ...
... were likely to be less stable than simpler systems May analyzed sets of randomly assembled Model Ecosystems. Jacobian matrices were Assembled as follows: diagonal elements were defined as – 1. All other interaction terms were equally likely to be + or – (chosen from a uniform random distribution ran ...
A new hypothesis to explain the coexistence of n species in the
... size of the various populations, the growth rate of each population increases with the concentration of substrate. The second set expresses that a competition is exerted by each j species on the i species: the bigger the concentration of the j th species, the smaller the growth rate of the ith speci ...
... size of the various populations, the growth rate of each population increases with the concentration of substrate. The second set expresses that a competition is exerted by each j species on the i species: the bigger the concentration of the j th species, the smaller the growth rate of the ith speci ...
help maintain balance & stability in an ecosystem?
... interact in order to get the things they need? • What does this mean in terms of these factors affecting the size of a population of organisms? ...
... interact in order to get the things they need? • What does this mean in terms of these factors affecting the size of a population of organisms? ...
Ecology - msfoltzbio
... more risk to prey • The number of prey affects the predator population – More prey, more food for predators ...
... more risk to prey • The number of prey affects the predator population – More prey, more food for predators ...
CRT Science Review #7 Life Science: Diversity of Life
... L.8.D.2 Students know fossils provide evidence of how life and environmental conditions have changed throughout geologic time. E/S • Know fossils provide evidence of how environments and organisms have changed over time. • Given examples, predict the relative age of rock layers based on the types of ...
... L.8.D.2 Students know fossils provide evidence of how life and environmental conditions have changed throughout geologic time. E/S • Know fossils provide evidence of how environments and organisms have changed over time. • Given examples, predict the relative age of rock layers based on the types of ...
Document
... • Secondary- ecosystem used to be there. Fire, humans clear an area • Aquatic – lakes taken over by terrestrial ecosystem • Climax ecosystem- in balance only changes if major interference ...
... • Secondary- ecosystem used to be there. Fire, humans clear an area • Aquatic – lakes taken over by terrestrial ecosystem • Climax ecosystem- in balance only changes if major interference ...
How can humans cause population decline in other species?
... Some limiting factors are related to how dense the population is. Some aren’t. …………………………………………………….. factors will control a population size if there is a high population density. They lower the …………………….. rate or raise the ……………………….. rate as the population grows in size. Density dependent factors ...
... Some limiting factors are related to how dense the population is. Some aren’t. …………………………………………………….. factors will control a population size if there is a high population density. They lower the …………………….. rate or raise the ……………………….. rate as the population grows in size. Density dependent factors ...
species - Mercer Island School District
... •Species 1 might adapt by_____________________. •Species 2 might adapt by_____________________. ...
... •Species 1 might adapt by_____________________. •Species 2 might adapt by_____________________. ...
AP Biology - Summer assignment
... biome in which your ecosystem is located. B. Biological community: Include at least 6 species. You must have at least one species from each of the following groups: i. Producers ii. Primary consumers iii. Secondary and higher level consumers iv. Decomposers For each species be sure to include its: i ...
... biome in which your ecosystem is located. B. Biological community: Include at least 6 species. You must have at least one species from each of the following groups: i. Producers ii. Primary consumers iii. Secondary and higher level consumers iv. Decomposers For each species be sure to include its: i ...
APES-Chapter-7-Powerpoint-15th
... How can we classify species according to their roles in a community? How do species interact with one another? How do communities respond to changes in environmental conditions? Does high species biodiversity increase the stability and sustainability of a community? ...
... How can we classify species according to their roles in a community? How do species interact with one another? How do communities respond to changes in environmental conditions? Does high species biodiversity increase the stability and sustainability of a community? ...
Exam III
... Answers A and B e. All of the above The response to competition differs from the measure of asymmetry because it a. does not account for the true differences between competitors b. measures only the mass of individuals rather than fecundity c. may show negative effects for one species due to competi ...
... Answers A and B e. All of the above The response to competition differs from the measure of asymmetry because it a. does not account for the true differences between competitors b. measures only the mass of individuals rather than fecundity c. may show negative effects for one species due to competi ...
What factors affect population growth
... Found shift in survivorship curves Intraspecific competition Density can affect all BIDE factors Allee effect Density-independent factors Factors unaffected by population density Examples include drought, hurricanes and floods Density-independent factor Decline in the population of one o ...
... Found shift in survivorship curves Intraspecific competition Density can affect all BIDE factors Allee effect Density-independent factors Factors unaffected by population density Examples include drought, hurricanes and floods Density-independent factor Decline in the population of one o ...