Coupled Oscillations in Food Webs: Balancing Competition and
... (by changing the equality of any of the parameters), the behavior of the system tends to be quasi-periodic or quasiperiodic chaos, following qualitatively the predictions of the circle map, as has been reported for similar models elsewhere (Rinaldi et al. 1993; Vandermeer et al. 2001). Since there i ...
... (by changing the equality of any of the parameters), the behavior of the system tends to be quasi-periodic or quasiperiodic chaos, following qualitatively the predictions of the circle map, as has been reported for similar models elsewhere (Rinaldi et al. 1993; Vandermeer et al. 2001). Since there i ...
References - Trace: Tennessee Research and Creative Exchange
... Table I.1. Dominance (as measured by the Colley dominance matrix) and discovery abilities (residual of actual bait discovery versus expected bait discovery) for the twelve most common ants in the study system. Positive values for discovery ability indicate species that discovered more baits than exp ...
... Table I.1. Dominance (as measured by the Colley dominance matrix) and discovery abilities (residual of actual bait discovery versus expected bait discovery) for the twelve most common ants in the study system. Positive values for discovery ability indicate species that discovered more baits than exp ...
The Link Between Environmental Variation and Evolutionary Shifts
... sexual reproduction and enter dormancy represents a form of phenotypic plasticity. Plasticity is generally favored when the environment is variable but predictable (Levins 1968; Lively 1986; Scheiner 1993; Schlichting and Pigliucci 1998; Alpert and Simms 2002). More specifically, theory predicts tha ...
... sexual reproduction and enter dormancy represents a form of phenotypic plasticity. Plasticity is generally favored when the environment is variable but predictable (Levins 1968; Lively 1986; Scheiner 1993; Schlichting and Pigliucci 1998; Alpert and Simms 2002). More specifically, theory predicts tha ...
Chapter 1
... If the model generates expected solutions, use the model on the full-scale problem. If inaccuracies or potential shortcomings inherent in the model are identified, take corrective action such as: •Collection of more-accurate input data •Modification of the model ...
... If the model generates expected solutions, use the model on the full-scale problem. If inaccuracies or potential shortcomings inherent in the model are identified, take corrective action such as: •Collection of more-accurate input data •Modification of the model ...
lions - Serengeti
... important role, although direct observations of mortality are rare. Overall, out of twenty cubs born, only one will be fortunate enough to make it to independence at 18 months. ...
... important role, although direct observations of mortality are rare. Overall, out of twenty cubs born, only one will be fortunate enough to make it to independence at 18 months. ...
Camden 2002 - Australasian Wildlife Management Society
... and trade. Current priorities are in setting strategic direction for key areas in research, surveillance, emergency disease response and education as they relate to wildlife and feral animals. Other priorities include the development of: a national database and reporting system for wildlife health s ...
... and trade. Current priorities are in setting strategic direction for key areas in research, surveillance, emergency disease response and education as they relate to wildlife and feral animals. Other priorities include the development of: a national database and reporting system for wildlife health s ...
Predation, resource availability, and community structure in
... forests of Panama. Although c. 60 different species of macroorganisms are associated with this habitat, most individual holes contain fewer than ten species on any given wet season day (Yanoviak, in press). Detritivores and omnivores comprise the majority of the fauna, but most holes also contain on ...
... forests of Panama. Although c. 60 different species of macroorganisms are associated with this habitat, most individual holes contain fewer than ten species on any given wet season day (Yanoviak, in press). Detritivores and omnivores comprise the majority of the fauna, but most holes also contain on ...
Prey abundance and habitat use by migratory shorebirds at coastal
... of specific stopover areas. For our study, we conducted prey availability surveys and documented shorebird habitat use during northward summer migration for three historically important stopover areas along the Connecticut Long Island Sound coastline in 2000. Coastal Connecticut provides important h ...
... of specific stopover areas. For our study, we conducted prey availability surveys and documented shorebird habitat use during northward summer migration for three historically important stopover areas along the Connecticut Long Island Sound coastline in 2000. Coastal Connecticut provides important h ...
Literature Review of Bioeconomic Impacts of Pollutants Affecting
... Pollution originating from diffuse and point sources may impact negatively on marine environments, including marine parks. This can have undesirable economic consequences for use and non‐use values, both within and outside the reserved area. Bioeconomic modelling, where the biophysical and eco ...
... Pollution originating from diffuse and point sources may impact negatively on marine environments, including marine parks. This can have undesirable economic consequences for use and non‐use values, both within and outside the reserved area. Bioeconomic modelling, where the biophysical and eco ...
Transdisciplinary Wildlife Management
... between wildlife and people with increasing different backgrounds may have complex consequences, and, unfortunately, also conflicts may arise. The complex societal problems increasingly call for research that helps to tackle the problems and make the difference. Although at the dawn of NKV ecologica ...
... between wildlife and people with increasing different backgrounds may have complex consequences, and, unfortunately, also conflicts may arise. The complex societal problems increasingly call for research that helps to tackle the problems and make the difference. Although at the dawn of NKV ecologica ...
Rotifers: Exquisite Metazoans1 - Integrative and Comparative Biology
... difficult. Use of chemostats along with particle-counting technology, however, permits systematic manipulation of experimental conditions, thereby allowing tests of population growth models (Walz, 1993). For example, Boraas et al. (1998) and McNair et al. (1998) offer a model with separate component ...
... difficult. Use of chemostats along with particle-counting technology, however, permits systematic manipulation of experimental conditions, thereby allowing tests of population growth models (Walz, 1993). For example, Boraas et al. (1998) and McNair et al. (1998) offer a model with separate component ...
Herbivory on woody plants and induced responses in two similar
... rivers during the dry season. The question raised here is if the patterns in browsing found close to water holes can also be seen near the rivers, and if so, what effects of this can be seen on browsing severity and on the inducible defences of the woody plants in the area. In this study, exclosures ...
... rivers during the dry season. The question raised here is if the patterns in browsing found close to water holes can also be seen near the rivers, and if so, what effects of this can be seen on browsing severity and on the inducible defences of the woody plants in the area. In this study, exclosures ...
natural Systems - International Wolf Center
... in the pack. If they have enough cards for all wolves in the pack to survive, the pack remains the same for the next round. If any pack has extra food cards, they get to “cache” them in a secret place and keep them for the next round. If the pack has not collected enough food, the wolves who collect ...
... in the pack. If they have enough cards for all wolves in the pack to survive, the pack remains the same for the next round. If any pack has extra food cards, they get to “cache” them in a secret place and keep them for the next round. If the pack has not collected enough food, the wolves who collect ...
full text pdf
... Van Noordwijk et al. 1980). In the higher latitudes breeding starts later and nestling development is shorter. However, in regions far north many species which reproduce late in the course of the year start breeding at a lower temperature and phenologically earlier, which is an advantageous adaptati ...
... Van Noordwijk et al. 1980). In the higher latitudes breeding starts later and nestling development is shorter. However, in regions far north many species which reproduce late in the course of the year start breeding at a lower temperature and phenologically earlier, which is an advantageous adaptati ...
Relative herbivory tolerance and competitive ability in two dominant
... among dominant and subordinate species will increase our mechanistic understanding of herbivoreinduced patterns of species replacement in grasslands and savannas. ...
... among dominant and subordinate species will increase our mechanistic understanding of herbivoreinduced patterns of species replacement in grasslands and savannas. ...
Conservation of Wildlife Populations
... wildlife and conservation biology. It will build on your training in basic ecology and genetics, then move deeper into areas where ecological and genetic concepts and theory are applied. Because this is an applied book on population biology, it will not derive or prove theoretical premises, nor will ...
... wildlife and conservation biology. It will build on your training in basic ecology and genetics, then move deeper into areas where ecological and genetic concepts and theory are applied. Because this is an applied book on population biology, it will not derive or prove theoretical premises, nor will ...
Habitat degradation and fishing effects on the size structure of coral
... composition and structure of the benthic community. This is an unusual case study, as burgeoning populations on most tropical coasts increase the demands for marine resources and fishing intensity. However the current scenario in the Lau Islands is analogous to management strategies that endeavor to ...
... composition and structure of the benthic community. This is an unusual case study, as burgeoning populations on most tropical coasts increase the demands for marine resources and fishing intensity. However the current scenario in the Lau Islands is analogous to management strategies that endeavor to ...
Wilson et al. constrained lability in Penstemon and
... syndrome. Generally, these have taken on reddish colors, narrowed their corollas while not shortening them, and increased their nectar volume, and are observed in nature to be frequented by hummingbirds. However, we do not have field data for all species, and when we do not, we ascribe pollination s ...
... syndrome. Generally, these have taken on reddish colors, narrowed their corollas while not shortening them, and increased their nectar volume, and are observed in nature to be frequented by hummingbirds. However, we do not have field data for all species, and when we do not, we ascribe pollination s ...
Manipulative Field Experiments in Animal Ecology: Do They
... organisms move in a three-dimensional environment. If linear dimensions of the volume were provided by the authors, we have taken the plan area as the ...
... organisms move in a three-dimensional environment. If linear dimensions of the volume were provided by the authors, we have taken the plan area as the ...
07 JMS 329-341 Ansell
... harbour beaches as described by Morton & Miller (1968) and other authors (e.g. Grange, 1977). The dominant large bivalves present were the tellinid Macomona liliana (Iredale, 1915) and the venerid cockle Austrovenus stutchburyi (Wood, 1828). The crabs Helice crassa Dana, 1851, Macrophthalmus hirtipe ...
... harbour beaches as described by Morton & Miller (1968) and other authors (e.g. Grange, 1977). The dominant large bivalves present were the tellinid Macomona liliana (Iredale, 1915) and the venerid cockle Austrovenus stutchburyi (Wood, 1828). The crabs Helice crassa Dana, 1851, Macrophthalmus hirtipe ...
The Return of the Wolf
... Apex predators may have both direct and indirect effects on other species through predation and competition. I investigated the effects of wolves (Canis lupus) on prey species, competitors (including humans) and the scavenging guild after the recolonization by wolves of the Scandinavian Peninsula. F ...
... Apex predators may have both direct and indirect effects on other species through predation and competition. I investigated the effects of wolves (Canis lupus) on prey species, competitors (including humans) and the scavenging guild after the recolonization by wolves of the Scandinavian Peninsula. F ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.