The effect of historical legacy on adaptation: do closely related
... Prunier, Rachel; Holsinger, Kent E.; and Carlson, Jane E., "The effect of historical legacy on adaptation: do closely related species respond to the environment in the same way?" (2012). EEB Articles. 32. ...
... Prunier, Rachel; Holsinger, Kent E.; and Carlson, Jane E., "The effect of historical legacy on adaptation: do closely related species respond to the environment in the same way?" (2012). EEB Articles. 32. ...
Chapter 1 - Edinburgh Research Archive
... reproductive output of individual plants and population size. Reproduction is a function of the number of flowering heads, length of flowering time, availability of pollinators, number of seeds produced, vegetative spread, and the viability, longevity and dormancy of seeds. Varying seed production b ...
... reproductive output of individual plants and population size. Reproduction is a function of the number of flowering heads, length of flowering time, availability of pollinators, number of seeds produced, vegetative spread, and the viability, longevity and dormancy of seeds. Varying seed production b ...
Patterns in the co-occurrence of fish species in streams: the role of
... Caswell 1976; Connor and Simberloff 1979; Jackson et al. 1992; Cook and Quinn 1995; Gotelli and Graves 1996; Weiher and Keddy 1999; Peres-Neto et al. 2001). Although null models are commonly used for assessing the influence of species associations in determining community composition, a number of fa ...
... Caswell 1976; Connor and Simberloff 1979; Jackson et al. 1992; Cook and Quinn 1995; Gotelli and Graves 1996; Weiher and Keddy 1999; Peres-Neto et al. 2001). Although null models are commonly used for assessing the influence of species associations in determining community composition, a number of fa ...
The Interplay of Biotic and Abiotic Factors in a Semiarid
... are essentially limited by available resources (i.e.. "donor-controlled": Polis and Strong 1996). and that "top-down" interactions (i.e., predation. herbivorq) are relatively unimportant. Thus. predator or herbivore exclusions would result in little or no effects on consumers or primary producers at ...
... are essentially limited by available resources (i.e.. "donor-controlled": Polis and Strong 1996). and that "top-down" interactions (i.e., predation. herbivorq) are relatively unimportant. Thus. predator or herbivore exclusions would result in little or no effects on consumers or primary producers at ...
Slide 1
... Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e.g., lengths of food chains, connectedness, etc.) determines stability ...
... Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e.g., lengths of food chains, connectedness, etc.) determines stability ...
ppt
... Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e.g., lengths of food chains, connectedness, etc.) determines stability ...
... Two criteria for assessing stability: Do populations return to equilibrium sizes? How long does the system take to return to equilibrium? The way in which the matrices are constructed (e.g., lengths of food chains, connectedness, etc.) determines stability ...
Temporal changes in a Chihuahuan Desert rodent community
... and Winakur 1969, Rosenzweig and Sterner 1970, Ro- We analyze ten years of rodent censuses from Brown's senzweig 1973, Rosenzweig et al. 1975, Brown 1975, 20-ha experimental study site 6.5 km east and 2 km 1984, 1987, 1989, Brown et al. 1979, 1986, Price and north of Portal. Cochise Countv. Arizona. ...
... and Winakur 1969, Rosenzweig and Sterner 1970, Ro- We analyze ten years of rodent censuses from Brown's senzweig 1973, Rosenzweig et al. 1975, Brown 1975, 20-ha experimental study site 6.5 km east and 2 km 1984, 1987, 1989, Brown et al. 1979, 1986, Price and north of Portal. Cochise Countv. Arizona. ...
A meta-analysis of the effects of cushion plants on high
... a generalized positive effect of cushions on other vascular plant species along the Andes? (2) do different species groups (i.e., annuals and perennials, natives and exotics) display different association responses to cushions? (3) does the nurse effect of cushions increase with environmental severi ...
... a generalized positive effect of cushions on other vascular plant species along the Andes? (2) do different species groups (i.e., annuals and perennials, natives and exotics) display different association responses to cushions? (3) does the nurse effect of cushions increase with environmental severi ...
BIOS 3010: Ecology 2. The effect of grazing herbivores: 3. The effect
... 6. Community structure and temporal variation in conditions: • Conditions constantly change in space and time: – They have a marked impact on ecological processes and hence on species composition of communities (Fig. 21.5). ...
... 6. Community structure and temporal variation in conditions: • Conditions constantly change in space and time: – They have a marked impact on ecological processes and hence on species composition of communities (Fig. 21.5). ...
Biotic Globalization: Does Competition from Introduced Species
... are rare events and typically involve only one or a very few number of individuals, the introductions are equivalent to rate. As a result, under today’s conditions (where i » v), what Hubbell describes as speciation occurring by point muHubbell’s fundamental biodiversity number, θ, would be tation m ...
... are rare events and typically involve only one or a very few number of individuals, the introductions are equivalent to rate. As a result, under today’s conditions (where i » v), what Hubbell describes as speciation occurring by point muHubbell’s fundamental biodiversity number, θ, would be tation m ...
Topic 4 - OoCities
... was greater than the number of black moths, because the speckled genes made the speckled moths more suitable for thier environment of lichenous trees. Because they were able to camouflage, they could evade predators more than black moths could, which allowed them to reproduce more moths with the gen ...
... was greater than the number of black moths, because the speckled genes made the speckled moths more suitable for thier environment of lichenous trees. Because they were able to camouflage, they could evade predators more than black moths could, which allowed them to reproduce more moths with the gen ...
Competition and Facilitation: a Synthetic Approach to Interactions in
... analyzed. By this approach, ecologists have shown that resource competition (Connell 1983, Schoener 1983), allelopathy (Rice 1984, Williamson 1990), and facilitation (Hunter and Aarssen 1988, Callaway 1995) have important effects on community organization. But facilitative and competitive mechanisms ...
... analyzed. By this approach, ecologists have shown that resource competition (Connell 1983, Schoener 1983), allelopathy (Rice 1984, Williamson 1990), and facilitation (Hunter and Aarssen 1988, Callaway 1995) have important effects on community organization. But facilitative and competitive mechanisms ...
Populations Notes PPT
... is able to increase in number o Birth rate – total number of live births per 1,000 people per year o Death rate – number of deaths per 1,000 people per year o Immigration – migration INTO a population o Emigration – migration OUT OF a population ...
... is able to increase in number o Birth rate – total number of live births per 1,000 people per year o Death rate – number of deaths per 1,000 people per year o Immigration – migration INTO a population o Emigration – migration OUT OF a population ...
Appendix_GCB-formatted
... dimensional volume with its n axes represented by requisite resources. MacArthur & Levins (MacArthur & Levins, 1967) extend the theory by considering niche axes as "resource utilization" axes (Schoener, 2009). Instead of describing population growth variation in response to environmental variation, ...
... dimensional volume with its n axes represented by requisite resources. MacArthur & Levins (MacArthur & Levins, 1967) extend the theory by considering niche axes as "resource utilization" axes (Schoener, 2009). Instead of describing population growth variation in response to environmental variation, ...
Biotic Globalization: Does Competition from Introduced Species
... are rare events and typically involve only one or a very few number of individuals, the introductions are equivalent to rate. As a result, under today’s conditions (where i » v), what Hubbell describes as speciation occurring by point muHubbell’s fundamental biodiversity number, q, would be tation m ...
... are rare events and typically involve only one or a very few number of individuals, the introductions are equivalent to rate. As a result, under today’s conditions (where i » v), what Hubbell describes as speciation occurring by point muHubbell’s fundamental biodiversity number, q, would be tation m ...
AP Environmental Science
... Environments cannot support an unending population increase. Eventually the population reaches or exceeds its maximum sustainable level; also know as its carrying capacity. Given enough time, the size of a population will maintain itself at a level equal to the carrying capacity. If you start with a ...
... Environments cannot support an unending population increase. Eventually the population reaches or exceeds its maximum sustainable level; also know as its carrying capacity. Given enough time, the size of a population will maintain itself at a level equal to the carrying capacity. If you start with a ...
Effective carrying capacity and analytical solution of a
... time-dependent intrinsic and extrinsic growth rates. The simplest way to deal with population growth is to consider one-species models. In these models, individuals do not explicitly interact with the external ones and, at time t, the number of individuals is N (t) ≥ 0, with initial condition N0 ≡ N ...
... time-dependent intrinsic and extrinsic growth rates. The simplest way to deal with population growth is to consider one-species models. In these models, individuals do not explicitly interact with the external ones and, at time t, the number of individuals is N (t) ≥ 0, with initial condition N0 ≡ N ...
What enables coexistence in plant communities? Weak versus
... lular automaton, inspired by the DivGame Simulator (Alonso and Solé, 2000). The generality of the model allows for applications to different communities with sessile organisms such as grasslands, forests or coral reefs. We focus here on forest communities, therefore our individual entity is a tree. ...
... lular automaton, inspired by the DivGame Simulator (Alonso and Solé, 2000). The generality of the model allows for applications to different communities with sessile organisms such as grasslands, forests or coral reefs. We focus here on forest communities, therefore our individual entity is a tree. ...
Species Interact in Five Major Ways Most Species Compete with
... When a Population Exceeds Its Habitat’s Carrying Capacity, Its Population Can Crash • A population exceeds the area’s carrying capacity • Reproductive time lag may lead to overshoot • Population crash Population crash ...
... When a Population Exceeds Its Habitat’s Carrying Capacity, Its Population Can Crash • A population exceeds the area’s carrying capacity • Reproductive time lag may lead to overshoot • Population crash Population crash ...
Notes - Population Ecology
... •The maximum number of offspring that each member of the population can produce in ideal ...
... •The maximum number of offspring that each member of the population can produce in ideal ...
Unit: Ecology Enduring understanding 2.D: Growth and dynamic
... over time by identifying large-scale events that have resulted in these changes in the past. [See SP 6.3] LO 4.21 The student is able to predict consequences of human actions on both local and global ecosystems. [See SP 6.4] Enduring understanding 4.C: Naturally occurring diversity among and between ...
... over time by identifying large-scale events that have resulted in these changes in the past. [See SP 6.3] LO 4.21 The student is able to predict consequences of human actions on both local and global ecosystems. [See SP 6.4] Enduring understanding 4.C: Naturally occurring diversity among and between ...
Chapter 5: Ecology and evolution: Populations, communities, and
... feed on (called the host plant), while some insects of the same species gain a mutation for feeding and mating on another host plant. Two populations of insects may thus arise in the same area, one feeding and mating on one host plant and the other on a different species of host plant. If their mati ...
... feed on (called the host plant), while some insects of the same species gain a mutation for feeding and mating on another host plant. Two populations of insects may thus arise in the same area, one feeding and mating on one host plant and the other on a different species of host plant. If their mati ...