populations
... • Biotic potential: the number of offspring (live births, eggs, or plant seeds and spores) produced under ideal situations • Measured by r (the rate at which organisms reproduce) • Varies tremendously from less than 1 birth/year (some mammals) to millions/year (plants, invertebrates) ...
... • Biotic potential: the number of offspring (live births, eggs, or plant seeds and spores) produced under ideal situations • Measured by r (the rate at which organisms reproduce) • Varies tremendously from less than 1 birth/year (some mammals) to millions/year (plants, invertebrates) ...
ADVANCED PLACEMENT ENVIRONMENTAL SCIENCE
... 44. The biggest stores for carbon are found in these “sinks”: Living organisms (especially plants) and troposphere Ocean water and living phytoplankton The African continent and Antarctica Greenland and the Boreal Forests The ocean floor and continents 45. The energy of the sun is primarily the resu ...
... 44. The biggest stores for carbon are found in these “sinks”: Living organisms (especially plants) and troposphere Ocean water and living phytoplankton The African continent and Antarctica Greenland and the Boreal Forests The ocean floor and continents 45. The energy of the sun is primarily the resu ...
Chapter 3 Test - biology-with
... 21. Which of the following statements in INCORRECT? a. The unequal heating of the atmosphere set up conditions that produce global air and water currents that interact with physical features to produce various patterns of rainfall. b. The pattern of precipitation influences the types of soil that fo ...
... 21. Which of the following statements in INCORRECT? a. The unequal heating of the atmosphere set up conditions that produce global air and water currents that interact with physical features to produce various patterns of rainfall. b. The pattern of precipitation influences the types of soil that fo ...
3.4.1 Chapter 3 Test.AST
... 21. Which of the following statements in INCORRECT? a. The unequal heating of the atmosphere set up conditions that produce global air and water currents that interact with physical features to produce various patterns of rainfall. b. The pattern of precipitation influences the types of soil that fo ...
... 21. Which of the following statements in INCORRECT? a. The unequal heating of the atmosphere set up conditions that produce global air and water currents that interact with physical features to produce various patterns of rainfall. b. The pattern of precipitation influences the types of soil that fo ...
intermediate disturbance hypothesis
... are restricted to square metres”. However, the community extent is not relevant, what is relevant is the relative sizes of the disturbance patch and the sampling area. If the disturbance patch is larger than the sampling area, we are considering withinpatch mechanisms (Fig. 1a); if the disturbancepa ...
... are restricted to square metres”. However, the community extent is not relevant, what is relevant is the relative sizes of the disturbance patch and the sampling area. If the disturbance patch is larger than the sampling area, we are considering withinpatch mechanisms (Fig. 1a); if the disturbancepa ...
Israa Dorgham
... natural events suggests that populations of herbivores are not limited by food supply. Another suggestion that has been proposed is that weather is a sufficient method for controlling herbivore populations. Hairston et al. refute this claim by explaining that hundreds of thousands of native forest s ...
... natural events suggests that populations of herbivores are not limited by food supply. Another suggestion that has been proposed is that weather is a sufficient method for controlling herbivore populations. Hairston et al. refute this claim by explaining that hundreds of thousands of native forest s ...
Israa Dorgham
... natural events suggests that populations of herbivores are not limited by food supply. Another suggestion that has been proposed is that weather is a sufficient method for controlling herbivore populations. Hairston et al. refute this claim by explaining that hundreds of thousands of native forest s ...
... natural events suggests that populations of herbivores are not limited by food supply. Another suggestion that has been proposed is that weather is a sufficient method for controlling herbivore populations. Hairston et al. refute this claim by explaining that hundreds of thousands of native forest s ...
Biotic interactions among estuarine infaunal
... We hypothesize that patterns of single species dominance and changes in the composition of infaunal opportunists can result from biotic interactions between already settled species and other opportunistic species recruiting into a disturbed site. Here we present results from several field experiment ...
... We hypothesize that patterns of single species dominance and changes in the composition of infaunal opportunists can result from biotic interactions between already settled species and other opportunistic species recruiting into a disturbed site. Here we present results from several field experiment ...
Israa Dorgham
... natural events suggests that populations of herbivores are not limited by food supply. Another suggestion that has been proposed is that weather is a sufficient method for controlling herbivore populations. Hairston et al. refute this claim by explaining that hundreds of thousands of native forest s ...
... natural events suggests that populations of herbivores are not limited by food supply. Another suggestion that has been proposed is that weather is a sufficient method for controlling herbivore populations. Hairston et al. refute this claim by explaining that hundreds of thousands of native forest s ...
Population size
... Adapted to unstable climate and environmental conditions High population growth rate (r) Population size fluctuates wildly above and below carrying capacity (K) Generalist niche Low ability to compete Early successional species ...
... Adapted to unstable climate and environmental conditions High population growth rate (r) Population size fluctuates wildly above and below carrying capacity (K) Generalist niche Low ability to compete Early successional species ...
Direct and indirect community effects of rebuilding plans
... classes is due to increased predation pressure from the adults of the target species (Figure 5b), whereas the larger asymptotic size classes are also affected by increased predation pressure during their juvenile stages. Furthermore, when the individuals of the larger asymptotic size classes are in ...
... classes is due to increased predation pressure from the adults of the target species (Figure 5b), whereas the larger asymptotic size classes are also affected by increased predation pressure during their juvenile stages. Furthermore, when the individuals of the larger asymptotic size classes are in ...
Understanding co‐occurrence by modelling species simultaneously
... predictive performance of SDMs (Araujo & Luoto 2007; Heikkinen et al. 2007), and in some cases, biotic predictors have outperformed abiotic variables (Meier et al. 2010). However, this approach only models unidirectional interactions between species and confounds the influence of species interactions ...
... predictive performance of SDMs (Araujo & Luoto 2007; Heikkinen et al. 2007), and in some cases, biotic predictors have outperformed abiotic variables (Meier et al. 2010). However, this approach only models unidirectional interactions between species and confounds the influence of species interactions ...
Species pool size and invasibility of island communities: a null
... individuals (community size, N) was constructed by random drawing from species pools with a simple dynamic simulation model of community invasion. The pool is a set of individuals whose species identity is known; these species may be either native or alien. Individuals of all species are identical e ...
... individuals (community size, N) was constructed by random drawing from species pools with a simple dynamic simulation model of community invasion. The pool is a set of individuals whose species identity is known; these species may be either native or alien. Individuals of all species are identical e ...
Competitive Response Hierarchies for Germination
... response hierarchies among 4-8 old-field perennials for five components of fitness (germination, seedling growth, seedling survival, adult growth, and adult survival). We examined how the overall response to neighbors changes among components of fitness, the concordance of hierarchies within and amo ...
... response hierarchies among 4-8 old-field perennials for five components of fitness (germination, seedling growth, seedling survival, adult growth, and adult survival). We examined how the overall response to neighbors changes among components of fitness, the concordance of hierarchies within and amo ...
Indirect Effects of Introduced Predators on Seabird Islands
... groups (Chapter 3), the vast majority can be classified into one of three categories depending on their trophic position (see Chapters 3 and 4 for details on specific species; Figure 9.1, shaded boxes). A top predator is the highest order, or apex, predator in a food chain. Mesopredators are any oth ...
... groups (Chapter 3), the vast majority can be classified into one of three categories depending on their trophic position (see Chapters 3 and 4 for details on specific species; Figure 9.1, shaded boxes). A top predator is the highest order, or apex, predator in a food chain. Mesopredators are any oth ...
Viola, D., E. Mordecai, A. Jaramillo, S. Sistla, L
... Ecologists have long observed that consumers can maintain species diversity in communities of their prey. Many theories of how consumers mediate diversity invoke a tradeoff between species’ competitive ability and their ability to withstand predation. Under this constraint, the best competitors are ...
... Ecologists have long observed that consumers can maintain species diversity in communities of their prey. Many theories of how consumers mediate diversity invoke a tradeoff between species’ competitive ability and their ability to withstand predation. Under this constraint, the best competitors are ...
Elevated carbon dioxide is predicted to promote model
... two alternative theories for competition in our model, so that our conclusions would not be contingent on the choice of the theory. Firstly, we implemented “resource use” theory (Tilman 1982), which predicts that the species that can reduce the monoculture soil nutrient availability to the lowest le ...
... two alternative theories for competition in our model, so that our conclusions would not be contingent on the choice of the theory. Firstly, we implemented “resource use” theory (Tilman 1982), which predicts that the species that can reduce the monoculture soil nutrient availability to the lowest le ...
The role of abiotic and biotic factors in determining coexistence of
... (2002), for instance, examined the environmental niches of two species of Heteromys pocket mice that occur in northwestern South America. Using GARP analyses, they demonstrated that H. australis and H. anomalus could co-occur in many areas. Based on current distributions, however, H. australis is l ...
... (2002), for instance, examined the environmental niches of two species of Heteromys pocket mice that occur in northwestern South America. Using GARP analyses, they demonstrated that H. australis and H. anomalus could co-occur in many areas. Based on current distributions, however, H. australis is l ...
The Effect of Density-Independent Mortality on the Coexistence of
... competitors differ in the resource they capture most effectively and have mirror image consumption rates. If both species capture resource i at a greater rate than resource j, then a low enough value of d implies that resource j is the only resource present at each of the two possible singleconsumer ...
... competitors differ in the resource they capture most effectively and have mirror image consumption rates. If both species capture resource i at a greater rate than resource j, then a low enough value of d implies that resource j is the only resource present at each of the two possible singleconsumer ...
