on the relationship between regional and local species richness
... processes such as dispersal. A decelerating curvilinear line, where maximum local species richness is reached at a low level of regional species richness, indicates that local processes like competition are dominant, and this is typically interpreted as evidence for saturation. Tests for species sat ...
... processes such as dispersal. A decelerating curvilinear line, where maximum local species richness is reached at a low level of regional species richness, indicates that local processes like competition are dominant, and this is typically interpreted as evidence for saturation. Tests for species sat ...
andrés meynard pontificia universidad católica de
... Figure 1. Niche delineation through intersecting the specific ranges and frequency of utilization of two resources (R1 and R2) by an avian herbivore, which determine a variable fitness surface (W) and an optimum range of resource categories utilized... ............................ 6 Figure 2. (a) Fi ...
... Figure 1. Niche delineation through intersecting the specific ranges and frequency of utilization of two resources (R1 and R2) by an avian herbivore, which determine a variable fitness surface (W) and an optimum range of resource categories utilized... ............................ 6 Figure 2. (a) Fi ...
Shape up or ship out: migratory behaviour predicts
... to the laboratory. For our interpopulation study, all fish were frozen for storage and thawed prior to morphometric land marking. Although freezing may potentially have some effects on morphology (see, however, Valentin et al. 2008), all individuals were treated consistently between lakes and if any ...
... to the laboratory. For our interpopulation study, all fish were frozen for storage and thawed prior to morphometric land marking. Although freezing may potentially have some effects on morphology (see, however, Valentin et al. 2008), all individuals were treated consistently between lakes and if any ...
Chapman_et_al-2015-J.. - Behaviour and Ecology at Nottingham
... to the laboratory. For our interpopulation study, all fish were frozen for storage and thawed prior to morphometric land marking. Although freezing may potentially have some effects on morphology (see, however, Valentin et al. 2008), all individuals were treated consistently between lakes and if any ...
... to the laboratory. For our interpopulation study, all fish were frozen for storage and thawed prior to morphometric land marking. Although freezing may potentially have some effects on morphology (see, however, Valentin et al. 2008), all individuals were treated consistently between lakes and if any ...
Oral Presentation Abstracts - Queen`s University Belfast
... ([email protected]), Mus.Vert.Zoology, Uni.California, Berkeley, USA This symposium explores the forefront of research on population dynamics of mammals by considering population density changes explicitly in the framework of the communities and ecoscapes in which they occur. This approach will ...
... ([email protected]), Mus.Vert.Zoology, Uni.California, Berkeley, USA This symposium explores the forefront of research on population dynamics of mammals by considering population density changes explicitly in the framework of the communities and ecoscapes in which they occur. This approach will ...
ecological and reproductive character displacement
... We expand on the earlier models of Case and Taper (2000) and Lemmon et al. (2004), by analyzing and comparing models of ecological and reproductive character displacement. We find that the qualitative behavior of these two processes can be quite different, and that a trait affecting assortative mati ...
... We expand on the earlier models of Case and Taper (2000) and Lemmon et al. (2004), by analyzing and comparing models of ecological and reproductive character displacement. We find that the qualitative behavior of these two processes can be quite different, and that a trait affecting assortative mati ...
A shift from exploitation to interference competition with increasing
... However, interference competition becomes more important when consumer behavior affects the encounter rate. In the case of many squirrel species, these behaviors include territoriality, where individuals guard and defend highly productive trees, and hoarding (Gordon 1936). If one large squirrel hoar ...
... However, interference competition becomes more important when consumer behavior affects the encounter rate. In the case of many squirrel species, these behaviors include territoriality, where individuals guard and defend highly productive trees, and hoarding (Gordon 1936). If one large squirrel hoar ...
Character Displacement in Giant Rhinoceros Beetles
... occur in microsympatry, they are subtly different from each other in the exact location of habitat, such as elevation (e.g., Diamond 1970), or in external morphology, such as the beaks of birds (e.g., Lack 1947) or the mandibles of beetles (e.g., Hori 1982). This suggests that they are effectively d ...
... occur in microsympatry, they are subtly different from each other in the exact location of habitat, such as elevation (e.g., Diamond 1970), or in external morphology, such as the beaks of birds (e.g., Lack 1947) or the mandibles of beetles (e.g., Hori 1982). This suggests that they are effectively d ...
Bioinfo primer - part 4/6
... • Aligning 2 sequences along their whole length is done by stepping through the matrix from top left to bottom right. The best-scoring path can be traced through the matrix, resulting in an optimal alignment. The NeedlemanWunsch algorithm belongs to this class. • Sequences are often modular, therefo ...
... • Aligning 2 sequences along their whole length is done by stepping through the matrix from top left to bottom right. The best-scoring path can be traced through the matrix, resulting in an optimal alignment. The NeedlemanWunsch algorithm belongs to this class. • Sequences are often modular, therefo ...
Chapter 11: Wolves Student notes Chapter 11 takes the wolf as the
... services for a variety of goals. a. Natural resource management has traditionally been top-down, dominated by government officials and experts using scientific methodology. The lay public has generally been excluded from assessments and decision-making. 2. The National Environmental Policy Act (NEPA ...
... services for a variety of goals. a. Natural resource management has traditionally been top-down, dominated by government officials and experts using scientific methodology. The lay public has generally been excluded from assessments and decision-making. 2. The National Environmental Policy Act (NEPA ...
the use of coastal agricultural fields in virginia as foraging habitat by
... period. All crop types reached heights exceeding 10 cm, so vegetation height (lO cm) was not dependent on crop type. I did not include any pastureland in this study,
as very little was present within the study area.
The area of each field was measured with a planimeter from field-checked ...
... period. All crop types reached heights exceeding 10 cm, so vegetation height (
Impacts of Climate Change on Wildlife Conservation in the Samiria
... More recently better climate models show a more complex scenario of climate change in the Amazon. Models using the IPCC-AR4 predict the western Amazon basin will actually become wetter with greater flooding during the high water season, and extreme conditions becoming more frequent (Cook et al. 2012 ...
... More recently better climate models show a more complex scenario of climate change in the Amazon. Models using the IPCC-AR4 predict the western Amazon basin will actually become wetter with greater flooding during the high water season, and extreme conditions becoming more frequent (Cook et al. 2012 ...
The interaction between predation and competition: a review and
... P. Hämback and A. Beckerman (unpublished observations) present a similar review of studies focused more specifically on the effect of herbivory on plant competition. Although these results are consistent with theory, for many fitness measures there are statistical as well as biological causes under ...
... P. Hämback and A. Beckerman (unpublished observations) present a similar review of studies focused more specifically on the effect of herbivory on plant competition. Although these results are consistent with theory, for many fitness measures there are statistical as well as biological causes under ...
The interaction between predation and competition: a review and
... P. Hämback and A. Beckerman (unpublished observations) present a similar review of studies focused more specifically on the effect of herbivory on plant competition. Although these results are consistent with theory, for many fitness measures there are statistical as well as biological causes under ...
... P. Hämback and A. Beckerman (unpublished observations) present a similar review of studies focused more specifically on the effect of herbivory on plant competition. Although these results are consistent with theory, for many fitness measures there are statistical as well as biological causes under ...
The Spread, Effect and Mitigation of Bullfrogs
... pollution may also be factors Other predators may also be to blame Disease is also a major player Bottom line we really don’t have a clear answer…interspecific relationships are complex ...
... pollution may also be factors Other predators may also be to blame Disease is also a major player Bottom line we really don’t have a clear answer…interspecific relationships are complex ...
Module Document
... add to the often-extreme temperatures that these organisms already have to endure, and they might not be able to withstand them. Temperature cues are also important for development and reproduction of many animals. From 1993-1996, researchers at Hopkins Marine Station in California surveyed transect ...
... add to the often-extreme temperatures that these organisms already have to endure, and they might not be able to withstand them. Temperature cues are also important for development and reproduction of many animals. From 1993-1996, researchers at Hopkins Marine Station in California surveyed transect ...
Journal of Experimental Marine Biology and Ecology
... studies that included orthogonal tests between the primary invaderdriver and secondary manipulated habitat-associated drivers. Next, we identified studies where at least two treatments were compared to the control, because these designs provide an opportunity to disentangle unique and universal impac ...
... studies that included orthogonal tests between the primary invaderdriver and secondary manipulated habitat-associated drivers. Next, we identified studies where at least two treatments were compared to the control, because these designs provide an opportunity to disentangle unique and universal impac ...
... effects have been examined more thoroughly for striped bass than for other species. Hence the following discussion will focus on striped bass. One source of information concerns periodic pesticide occurrence in runoff from the Sacramento and San Joaquin rivers. Biologically significant concentration ...
Trophic impact of long-lived species indicated by population
... ABSTRACT: Population dynamics, morphology, density, lipid contents and prey capture rates were studied in a patchy population of the tree-like passive suspension feeder Eudendrium racemosum (Cnidaria: Hydrozoa) during seasonal cycles. Density and size of colonies oscillated due to intraspecific comp ...
... ABSTRACT: Population dynamics, morphology, density, lipid contents and prey capture rates were studied in a patchy population of the tree-like passive suspension feeder Eudendrium racemosum (Cnidaria: Hydrozoa) during seasonal cycles. Density and size of colonies oscillated due to intraspecific comp ...
Species-Specific Responses of Carnivores to Human
... pumas in our study area appear to be heavily affected by anthropogenic pressure [33], we predicted that this species would avoid the areas fragmented and modified by human activity and would be associated with the most preserved habitats. 2) A certain avoidance of areas with intense human activity w ...
... pumas in our study area appear to be heavily affected by anthropogenic pressure [33], we predicted that this species would avoid the areas fragmented and modified by human activity and would be associated with the most preserved habitats. 2) A certain avoidance of areas with intense human activity w ...
Predator - Cary Institute of Ecosystem Studies
... Theoretical arguments underpin the current strong emphasis on the study of adaptation by prey, rather than that by predators. Loose application of the “arms race” analogy in the evolution of predator–prey interactions has been criticized for failing to recognize that the selective forces on prey and ...
... Theoretical arguments underpin the current strong emphasis on the study of adaptation by prey, rather than that by predators. Loose application of the “arms race” analogy in the evolution of predator–prey interactions has been criticized for failing to recognize that the selective forces on prey and ...
Yellow warbler defenses are retained in the
... nestlings (Lichtenstein and Sealy 1999). Warblers respond to live or model female cowbirds at their nests by uttering “seet” calls and rushing to the nest to sit tightly in the cup, and these behaviors are given less often to other avian species or nest predators (Hobson and Sealy 1989; Gill and Sea ...
... nestlings (Lichtenstein and Sealy 1999). Warblers respond to live or model female cowbirds at their nests by uttering “seet” calls and rushing to the nest to sit tightly in the cup, and these behaviors are given less often to other avian species or nest predators (Hobson and Sealy 1989; Gill and Sea ...
Lessons from primary succession for restoration of severely
... surface temperatures, reduced erosion, and increased animal activity). Carbon accumulation is not continuous even in successional systems that are left undisturbed. Following a progressive accumulation of carbon and nutrients, many primary seres undergo a retrogressive phase where carbon and often p ...
... surface temperatures, reduced erosion, and increased animal activity). Carbon accumulation is not continuous even in successional systems that are left undisturbed. Following a progressive accumulation of carbon and nutrients, many primary seres undergo a retrogressive phase where carbon and often p ...
Lessons from primary succession for restoration of severely
... surface temperatures, reduced erosion, and increased animal activity). Carbon accumulation is not continuous even in successional systems that are left undisturbed. Following a progressive accumulation of carbon and nutrients, many primary seres undergo a retrogressive phase where carbon and often p ...
... surface temperatures, reduced erosion, and increased animal activity). Carbon accumulation is not continuous even in successional systems that are left undisturbed. Following a progressive accumulation of carbon and nutrients, many primary seres undergo a retrogressive phase where carbon and often p ...