Trait selection during food web assembly
... et al. 2011), this might have important implications for the structure of food webs. Furthermore, biological rates are known to strongly vary with temperature (e.g., Rall et al. 2012), and bioenergetic models allow integrating this dependence (Vasseur and McCann 2005). Such models allow investigatin ...
... et al. 2011), this might have important implications for the structure of food webs. Furthermore, biological rates are known to strongly vary with temperature (e.g., Rall et al. 2012), and bioenergetic models allow integrating this dependence (Vasseur and McCann 2005). Such models allow investigatin ...
Extinction or Survival? Behavioral Flexibility in Response
... that environment, such that individuals will show at least ―partial adaptation‖ to that environment [19]. Although adaptation occurs over long time periods, it is nonetheless a dynamic process since—on a large time scale—environments change constantly. At least some individuals of a species must be ...
... that environment, such that individuals will show at least ―partial adaptation‖ to that environment [19]. Although adaptation occurs over long time periods, it is nonetheless a dynamic process since—on a large time scale—environments change constantly. At least some individuals of a species must be ...
Extinction or Survival? Behavioral Flexibility in Response
... that environment, such that individuals will show at least ―partial adaptation‖ to that environment [19]. Although adaptation occurs over long time periods, it is nonetheless a dynamic process since—on a large time scale—environments change constantly. At least some individuals of a species must be ...
... that environment, such that individuals will show at least ―partial adaptation‖ to that environment [19]. Although adaptation occurs over long time periods, it is nonetheless a dynamic process since—on a large time scale—environments change constantly. At least some individuals of a species must be ...
Alternative Dynamic Regimes and Trophic Control of Plant Succession
... compete under newly created light and nutrient regimes (Tilman 1988; Smith 1996; Foster and Tilman 2000). The new competitors eventually supplant opportunistic species but then transform ratios of light and nutrient availability in ways that lead to their own replacement by other competitors (Tilman ...
... compete under newly created light and nutrient regimes (Tilman 1988; Smith 1996; Foster and Tilman 2000). The new competitors eventually supplant opportunistic species but then transform ratios of light and nutrient availability in ways that lead to their own replacement by other competitors (Tilman ...
2007-2008 - Illinois Natural History Survey
... both reflect and support the active roles that our scientists continue to play in efforts to improve knowledge of Earth’s biological diversity. The INHS biological collections, assembled by Survey scientists and others over the past 150 years, and in many cases worldwide in scope, are a unique and i ...
... both reflect and support the active roles that our scientists continue to play in efforts to improve knowledge of Earth’s biological diversity. The INHS biological collections, assembled by Survey scientists and others over the past 150 years, and in many cases worldwide in scope, are a unique and i ...
this PDF file - Journal of Insect Biodiversity
... subterranean habits. Interestingly, although superficially resembling mole crickets (hence their common name, pygmy mole crickets), they are related to grasshoppers and not to crickets; in some old literature, they were considered as part of the Gryllidae. For example, Comstock (1888) places the gen ...
... subterranean habits. Interestingly, although superficially resembling mole crickets (hence their common name, pygmy mole crickets), they are related to grasshoppers and not to crickets; in some old literature, they were considered as part of the Gryllidae. For example, Comstock (1888) places the gen ...
global efforts to limit Australian acacia invasions
... planting is closely correlated with extent of invasions, at least in South Africa. Two plausible explanations can account for these correlations. First, those species that are most likely to become invasive are also those most suited for utilization, and so are those that humans have spread most wid ...
... planting is closely correlated with extent of invasions, at least in South Africa. Two plausible explanations can account for these correlations. First, those species that are most likely to become invasive are also those most suited for utilization, and so are those that humans have spread most wid ...
ecosystem - UNL Entomology
... When species share a common resource need, such as food, water, shelter, or mates and that resource becomes limited, competition will occur (Kormondy 1996). Competition is considered a negative-negative interaction whereby the individuals or populations involved suffer as a result of the relationshi ...
... When species share a common resource need, such as food, water, shelter, or mates and that resource becomes limited, competition will occur (Kormondy 1996). Competition is considered a negative-negative interaction whereby the individuals or populations involved suffer as a result of the relationshi ...
Annual Reviews of Ecology, Evolution and Systematics
... Both concepts can be defined as the presence of countervailing responses to environmental change (abiotic or biotic) between at least two species within a community. The difference between these concepts can be clarified using the analogy of pulse and press perturbations (Bender et al. 1984; see also ...
... Both concepts can be defined as the presence of countervailing responses to environmental change (abiotic or biotic) between at least two species within a community. The difference between these concepts can be clarified using the analogy of pulse and press perturbations (Bender et al. 1984; see also ...
- Centre for Biodiversity Theory and Modelling
... Both concepts can be defined as the presence of countervailing responses to environmental change (abiotic or biotic) between at least two species within a community. The difference between these concepts can be clarified using the analogy of pulse and press perturbations (Bender et al. 1984; see also ...
... Both concepts can be defined as the presence of countervailing responses to environmental change (abiotic or biotic) between at least two species within a community. The difference between these concepts can be clarified using the analogy of pulse and press perturbations (Bender et al. 1984; see also ...
Can the biomass-ratio hypothesis predict mixed
... predictions based on the biomass-ratio hypothesis would be incorrect since they implicitly assume that there are no interactions between species. However, some studies (Perez-Harguindeguy et al., 2008; Pakeman et al., 2011) showed that the use of the biomass-ratio hypothesis can still be accurate si ...
... predictions based on the biomass-ratio hypothesis would be incorrect since they implicitly assume that there are no interactions between species. However, some studies (Perez-Harguindeguy et al., 2008; Pakeman et al., 2011) showed that the use of the biomass-ratio hypothesis can still be accurate si ...
Conservation and restoration of plant
... However, increasing evidence has confirmed that it is not the decline of species diversity per se that scientists, conservationists, and restoration managers should be most concerned about, but rather the interactions between organisms that breathe life into ecosystems (e.g. Janzen, 1974; Bond, 1994; ...
... However, increasing evidence has confirmed that it is not the decline of species diversity per se that scientists, conservationists, and restoration managers should be most concerned about, but rather the interactions between organisms that breathe life into ecosystems (e.g. Janzen, 1974; Bond, 1994; ...
The scope of the problem - Assets
... colony survival. For the plant this means that one of its seeds is lost. However, seeds found by ants may subsequently be lost by them and germinate in the vicinity of an ants’ nest where herbivore pressure might be reduced and nutrient supply enhanced. The critical question is what proportion of se ...
... colony survival. For the plant this means that one of its seeds is lost. However, seeds found by ants may subsequently be lost by them and germinate in the vicinity of an ants’ nest where herbivore pressure might be reduced and nutrient supply enhanced. The critical question is what proportion of se ...
Climate, vegetation, and predictable gradients in mammal species
... variability in the plant species richness alone accounts for 75% of the variability in mammal species richness. Of the climatic variables, only thermal seasonality approaches this ®gure, accounting for 69% of the variability, while annual measures of temperature, precipitation or energy account for ...
... variability in the plant species richness alone accounts for 75% of the variability in mammal species richness. Of the climatic variables, only thermal seasonality approaches this ®gure, accounting for 69% of the variability, while annual measures of temperature, precipitation or energy account for ...
Reprint
... dominant driver [24]. This suggests that looking at the plausibility of coexistence mechanisms from an evolutionary perspective might complement existing attempts to infer their importance from empirical data [25]. For example, Purves and Turnbull argue that it is highly unlikely that evolution woul ...
... dominant driver [24]. This suggests that looking at the plausibility of coexistence mechanisms from an evolutionary perspective might complement existing attempts to infer their importance from empirical data [25]. For example, Purves and Turnbull argue that it is highly unlikely that evolution woul ...
A taste for exotic food: Neotropical land planarians feeding on an
... of the attack, tried to escape by tumbling or using autotomy. As a scavenger, E. septemlineata would impact the populations of species used as food, but could possibly exclude native scavengers by competition. On the other hand, its consumption by native land planarians may control its spread and th ...
... of the attack, tried to escape by tumbling or using autotomy. As a scavenger, E. septemlineata would impact the populations of species used as food, but could possibly exclude native scavengers by competition. On the other hand, its consumption by native land planarians may control its spread and th ...
Key Elements of Biodiversity in British Columbia
... – those elements that are particularly important from a functional perspective. Where possible, the objective was to identify some key elements of biodiversity in BC organised into three organisational scales – species, habitats and processes. Typically, functional importance has been described at t ...
... – those elements that are particularly important from a functional perspective. Where possible, the objective was to identify some key elements of biodiversity in BC organised into three organisational scales – species, habitats and processes. Typically, functional importance has been described at t ...
Seasonal variations in species composition, abundance, biomass
... (1997) have estimated the growth and feeding capabilities of tintinnids in laboratory and natural environments. However, the trophodynamic role of these shell-building tintinnid protozoans is still insufficient in tropical coastal marine waters, particularly in Indian estuarine and coastal waters. T ...
... (1997) have estimated the growth and feeding capabilities of tintinnids in laboratory and natural environments. However, the trophodynamic role of these shell-building tintinnid protozoans is still insufficient in tropical coastal marine waters, particularly in Indian estuarine and coastal waters. T ...
Ecology
... community would change over time without actually waiting for the pattern to unfold, which would have taken decades to centuries. This is called “space for time substitution” and is used frequently today. ...
... community would change over time without actually waiting for the pattern to unfold, which would have taken decades to centuries. This is called “space for time substitution” and is used frequently today. ...
ecosystem effects of biodiversity manipulations in
... had significant effects through both increased vegetation cover and greater nitrogen retention by plants when this resource was more abundant through N2 fixation by legumes. However, additional positive diversity effects remained even after controlling for differences in vegetation cover and for the ...
... had significant effects through both increased vegetation cover and greater nitrogen retention by plants when this resource was more abundant through N2 fixation by legumes. However, additional positive diversity effects remained even after controlling for differences in vegetation cover and for the ...
Progress in wetland restoration ecology
... understanding how both biodiversity and functions along parallel paths7. In reality, degradation involves many develop, although these lines of scientific inquiry are often paths of change in species abundances and ecosystem funcseparate4. Biodiversity and function are not necessarily tions, and res ...
... understanding how both biodiversity and functions along parallel paths7. In reality, degradation involves many develop, although these lines of scientific inquiry are often paths of change in species abundances and ecosystem funcseparate4. Biodiversity and function are not necessarily tions, and res ...
Root competition can cause a decline in diversity with increased
... Marysville, Ohio) was sprinkled on the soil surface inside the plots and over a 20-cm-wide buffer zone around each plot. This level of fertilization is less than used in many fertilization experiments (Carson & Pickett 1990; Gibson 1988; Gough et al. 2000) and was intended to be closer to levels tha ...
... Marysville, Ohio) was sprinkled on the soil surface inside the plots and over a 20-cm-wide buffer zone around each plot. This level of fertilization is less than used in many fertilization experiments (Carson & Pickett 1990; Gibson 1988; Gough et al. 2000) and was intended to be closer to levels tha ...
Springs and Seepages - An important habitat for wildlife
... wide area and which is present throughout all, or most of, the summer. Any change from the stable, high quality water conditions found in springs and seepages could be detrimental to their invertebrate and plant life. Springs and seepages provide habitat for aquatic invertebrates or those which have ...
... wide area and which is present throughout all, or most of, the summer. Any change from the stable, high quality water conditions found in springs and seepages could be detrimental to their invertebrate and plant life. Springs and seepages provide habitat for aquatic invertebrates or those which have ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.