Regeneration from injury and resource allocation in sponges and
... function for other species could be of value as a predictive tool: if the mean wound size can be used to predict the rate of physiological recovery of colonies, then the expected ecological pattern of recovery of multiple damaged species in a disturbed community (a pattern difficult to observe direc ...
... function for other species could be of value as a predictive tool: if the mean wound size can be used to predict the rate of physiological recovery of colonies, then the expected ecological pattern of recovery of multiple damaged species in a disturbed community (a pattern difficult to observe direc ...
invasive ecology of exotic old world bluestem
... provided by the University of Kentucky’s College of Agriculture, Departments of Forestry and Plant and Soil Sciences. Further, I would also like to extend my appreciation to the University of Kentucky’s Department of Biology for supporting me with teaching assistantships from Fall 2008 to Spring 201 ...
... provided by the University of Kentucky’s College of Agriculture, Departments of Forestry and Plant and Soil Sciences. Further, I would also like to extend my appreciation to the University of Kentucky’s Department of Biology for supporting me with teaching assistantships from Fall 2008 to Spring 201 ...
abstracts - NAOC 2016
... found breeding from the mid-South region of the United States up to Alaska. Despite being a well studied species, much of what we know comes from populations in the northeastern part of North America; we know relatively little about their biology in other parts of their range. Given their wide range ...
... found breeding from the mid-South region of the United States up to Alaska. Despite being a well studied species, much of what we know comes from populations in the northeastern part of North America; we know relatively little about their biology in other parts of their range. Given their wide range ...
Spatial Pattern Analysis in Plant Ecology MARK R.T. DALE CAMBRIDGE UNIVERSITY PRESS
... future processes, both of the plants themselves and of a range of other organisms with which they interact. The spatial scale at which pattern is seen to affect process goes from the neighborhood of an individual Arabidopsis thaliana plant, a few centimeters or less (Silander & Pacala 1985), to the s ...
... future processes, both of the plants themselves and of a range of other organisms with which they interact. The spatial scale at which pattern is seen to affect process goes from the neighborhood of an individual Arabidopsis thaliana plant, a few centimeters or less (Silander & Pacala 1985), to the s ...
Alien Species Alert: Ensis directus
... However, it prefers wave- and current-swept cleaner sands (Beukema and Dekker, 1995) with small amounts of silt (Kennish et al., 2004; Dauvin et al., 2007). The first strong year class in Europe (German Bight, Elbe Estuary) was documented in 1979 (Figure 5) and was presumed to have arrived as larvae ...
... However, it prefers wave- and current-swept cleaner sands (Beukema and Dekker, 1995) with small amounts of silt (Kennish et al., 2004; Dauvin et al., 2007). The first strong year class in Europe (German Bight, Elbe Estuary) was documented in 1979 (Figure 5) and was presumed to have arrived as larvae ...
Foraging behaviours and population dynamics of arctic foxes
... contribution of cached eggs to overall fox diets increased from <28% in years when collared lemmings were abundant to 30-74% in years when collared lemmings were scarce. Furthermore, arctic foxes used cached eggs well into the following spring (almost 1 year after eggs were acquired) – a pattern whi ...
... contribution of cached eggs to overall fox diets increased from <28% in years when collared lemmings were abundant to 30-74% in years when collared lemmings were scarce. Furthermore, arctic foxes used cached eggs well into the following spring (almost 1 year after eggs were acquired) – a pattern whi ...
impacts of grey seals on fish populations
... There is ongoing debate about the possible negative impacts of seal predation on fish populations of commercial and conservation interest (e.g. Atlantic cod). One factor contributing to this debate is the growth in grey seal populations in eastern Canadian waters over the past five decades and the c ...
... There is ongoing debate about the possible negative impacts of seal predation on fish populations of commercial and conservation interest (e.g. Atlantic cod). One factor contributing to this debate is the growth in grey seal populations in eastern Canadian waters over the past five decades and the c ...
Assessment of Canada Lynx Research and
... southern Canada and the contiguous United States compared to the boreal forest of Canada and Alaska, USA, where both species are well studied. However, given recent listing of lynx under the Endangered Species Act, accurate understanding of lynx and snowshoe hare ecology and conservation requirement ...
... southern Canada and the contiguous United States compared to the boreal forest of Canada and Alaska, USA, where both species are well studied. However, given recent listing of lynx under the Endangered Species Act, accurate understanding of lynx and snowshoe hare ecology and conservation requirement ...
Impact of Cattle Grazing on the Smith`s Blue Butterfly, Its Host Plant
... Such habitats along the coast are less degraded than inland ones, but are still in need of management activities to reduce the dominance of exotic plants and promote the success of natives. Grazing by domestic livestock, such as cattle, may be an effective tool for mitigating these invasions, but re ...
... Such habitats along the coast are less degraded than inland ones, but are still in need of management activities to reduce the dominance of exotic plants and promote the success of natives. Grazing by domestic livestock, such as cattle, may be an effective tool for mitigating these invasions, but re ...
Alfalfa Trap Cropping Increases Abundance Of Key Arachnids In An
... essential for long term sustainability. One strategy strawberry producers can use to promote sustainability is to increase the effectiveness of biological control techniques. Field experiments in other crops suggest that arachnid diversity and abundance may provide such a role in controlling insect ...
... essential for long term sustainability. One strategy strawberry producers can use to promote sustainability is to increase the effectiveness of biological control techniques. Field experiments in other crops suggest that arachnid diversity and abundance may provide such a role in controlling insect ...
NOBANIS – Invasive Alien Species Fact Sheet Ondatra zibethicus
... capable of infesting humans, such as the dog tapeworm (Taenia hydatigena), the cat tapeworm (Taenia taeniaformis), and the dwarf tapeworm (Echinococcus multilocuralis; cf. Diemer 1996). O. zibethicus only occasionally affect humans directly. This occurs in situations when the animals are cornered. T ...
... capable of infesting humans, such as the dog tapeworm (Taenia hydatigena), the cat tapeworm (Taenia taeniaformis), and the dwarf tapeworm (Echinococcus multilocuralis; cf. Diemer 1996). O. zibethicus only occasionally affect humans directly. This occurs in situations when the animals are cornered. T ...
Conservation Biology for All - Society for Conservation Biology
... The moral rights of the authors have been asserted Database right Oxford University Press (maker) First published 2010 Reprinted with corrections 2010 Available online with corrections, January 2011 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or ...
... The moral rights of the authors have been asserted Database right Oxford University Press (maker) First published 2010 Reprinted with corrections 2010 Available online with corrections, January 2011 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or ...
Demography and ecology of a declining endemic: The Olympic
... locations suggested that the species was in decline. I used demographic monitoring, habitat surveys, and non-invasive genetic sampling to evaluate population status of the species and consider the effects of several possible stressors. Olympic marmots disappeared from ~50% of well-studied colonies, ...
... locations suggested that the species was in decline. I used demographic monitoring, habitat surveys, and non-invasive genetic sampling to evaluate population status of the species and consider the effects of several possible stressors. Olympic marmots disappeared from ~50% of well-studied colonies, ...
Abstracts - Society For Range Management
... dairy production systems are as varied as the languages and cultures of the individuals who engage in them. In Morocco, large numbers of three-cow farms produce 90% of the country’s domestic milk supply and employ 70% of its population. Farmers are considering rain-fed sorghum and legume silage mixe ...
... dairy production systems are as varied as the languages and cultures of the individuals who engage in them. In Morocco, large numbers of three-cow farms produce 90% of the country’s domestic milk supply and employ 70% of its population. Farmers are considering rain-fed sorghum and legume silage mixe ...
Effects of Habitat Fragmentation on the Utilization of Ellgrass (Zostera marina) by Mobile Epifauna and Macrofauna
... The threat to biodiversity posed by increasing rates of anthropogenic habitat fragmentation necessitates an understanding of the consequences of spatial pattern for natural communities. Reduction of patch size, loss of habitat, changes in the quantity and proportion of habitat edge, and reduced conn ...
... The threat to biodiversity posed by increasing rates of anthropogenic habitat fragmentation necessitates an understanding of the consequences of spatial pattern for natural communities. Reduction of patch size, loss of habitat, changes in the quantity and proportion of habitat edge, and reduced conn ...
Population Responses of Wood Frog (Rana sylvatica) Tadpoles to
... predators (Werner, 1991). The effects of Bullfrogs on sympatric amphibians are often mediated by pond hydroperiod. In the Midwest, Bullfrogs typically require two years for tadpoles to complete metamorphosis (Phillips et al., 1999) and are, thus, restricted to permanent wetlands where fish may also ...
... predators (Werner, 1991). The effects of Bullfrogs on sympatric amphibians are often mediated by pond hydroperiod. In the Midwest, Bullfrogs typically require two years for tadpoles to complete metamorphosis (Phillips et al., 1999) and are, thus, restricted to permanent wetlands where fish may also ...
Mortality, behavior and the effects of predators on the
... investigate this hypothesis, we compared, between 22 February and 15 April 1998, mortality rates of snails tethered at the 1.0-m level, near the lower end of their distribution, and at the 2.5-m level, where both species were most abundant. The 1.0and 2.5-m levels will henceforth be referred to as t ...
... investigate this hypothesis, we compared, between 22 February and 15 April 1998, mortality rates of snails tethered at the 1.0-m level, near the lower end of their distribution, and at the 2.5-m level, where both species were most abundant. The 1.0and 2.5-m levels will henceforth be referred to as t ...
Herbivory versus corallivory
... differences in the zooxanthellae communities between grazed and non-grazed colonies persist for long after the bleaching event is unclear, as are the physiological implications of such differences in symbionts for coral growth, but the study implies that bite lesions may be a contributory form of st ...
... differences in the zooxanthellae communities between grazed and non-grazed colonies persist for long after the bleaching event is unclear, as are the physiological implications of such differences in symbionts for coral growth, but the study implies that bite lesions may be a contributory form of st ...
The Wildlife Resources Division (WRD) is charged with “promoting
... Alligators in Georgia probably remained numerous into the 1900s when populations began to decline, primarily due to inadequately controlled harvests and poaching. A low point in their population in Georgia occurred sometime in the late 1960s. Protection gained under the Endangered Species Act of 196 ...
... Alligators in Georgia probably remained numerous into the 1900s when populations began to decline, primarily due to inadequately controlled harvests and poaching. A low point in their population in Georgia occurred sometime in the late 1960s. Protection gained under the Endangered Species Act of 196 ...
The Polecat - The Vincent Wildlife Trust
... and, unlike badgers, are unpredictable in their movements and denning behaviour. Most sightings of polecats are made by chance, for example by car drivers at night. However, polecats commonly visit gardens, even in suburban areas, so some sightings may be made when polecats take food put out at nigh ...
... and, unlike badgers, are unpredictable in their movements and denning behaviour. Most sightings of polecats are made by chance, for example by car drivers at night. However, polecats commonly visit gardens, even in suburban areas, so some sightings may be made when polecats take food put out at nigh ...
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.