Document
... Invasive species are a known and growing threat to native ecosystems and the services they provide, and it is widely accepted that human activities contribute substantially to their spread. In a study of fifty-two north Mississippi wetlands, approximately 10% of the vascular plant species encountere ...
... Invasive species are a known and growing threat to native ecosystems and the services they provide, and it is widely accepted that human activities contribute substantially to their spread. In a study of fifty-two north Mississippi wetlands, approximately 10% of the vascular plant species encountere ...
Abiotic vs. Biotic Influences on Habitat Selection of Coexisting
... Abstract. Species are commonly segregated along gradients of microclimate and vegetation. I explore the question of whether segregation is the result of microhabitat partitioning (biotic effects) or choice of differing microclimates (abiotic effects). I explored this question for four ground-nesting ...
... Abstract. Species are commonly segregated along gradients of microclimate and vegetation. I explore the question of whether segregation is the result of microhabitat partitioning (biotic effects) or choice of differing microclimates (abiotic effects). I explored this question for four ground-nesting ...
Ben Bradley It is commonly held that there are a great many
... drowning or diseased animals facing painful deaths; we should set aside large areas of wilderness and not allow mining, clear-cutting, or other similarly destructive practices; we shouldn’t introduce alien species into a flourishing ecosystem; we shouldn’t put out forest fires caused by lightning st ...
... drowning or diseased animals facing painful deaths; we should set aside large areas of wilderness and not allow mining, clear-cutting, or other similarly destructive practices; we shouldn’t introduce alien species into a flourishing ecosystem; we shouldn’t put out forest fires caused by lightning st ...
Beak of the Fish: What Cichlid Flocks Reveal About Speciation
... of the principal molecular variables that provided ...
... of the principal molecular variables that provided ...
Absence of phylogenetic signal in the niche structure of meadow
... differences between species that are essential to coexistence will not evolve. In effect, we argue that two quite different filtering processes operate during community assembly (figure 2). A habitat filter excludes species that do not match certain habitat-specific physiological requirements and th ...
... differences between species that are essential to coexistence will not evolve. In effect, we argue that two quite different filtering processes operate during community assembly (figure 2). A habitat filter excludes species that do not match certain habitat-specific physiological requirements and th ...
Wildlife Management and Policy
... The course will provide a comprehensive introduction to wildlife ecology and management. The goal of the course is to expose students to the field of wildlife management, conservation biology and the use of indicator species and wildlife corridors in maintaining biodiversity. Students will develop a ...
... The course will provide a comprehensive introduction to wildlife ecology and management. The goal of the course is to expose students to the field of wildlife management, conservation biology and the use of indicator species and wildlife corridors in maintaining biodiversity. Students will develop a ...
native plants and adapted seeds for reclamation
... and result in reclamation failure. Alternatively, if cultivars represent vigorous plants, they may swamp remnant populations of local plants (or local genotypes). The loss of adapted traits as a result of swamping can impact the ability of those populations to persist when environmental extremes suc ...
... and result in reclamation failure. Alternatively, if cultivars represent vigorous plants, they may swamp remnant populations of local plants (or local genotypes). The loss of adapted traits as a result of swamping can impact the ability of those populations to persist when environmental extremes suc ...
The TKMG Tree-kangaroo Fact-File - The Tree
... Only 12% of the Lumholtz’s tree-kangaroo habitat is in protected areas, i.e. national parks. The highest densities of Lumholtz’s treekangaroos though occur on the Atherton Tablelands, mostly on private land where their habitat is prone to alteration, fragmentation or destruction for commercial purpo ...
... Only 12% of the Lumholtz’s tree-kangaroo habitat is in protected areas, i.e. national parks. The highest densities of Lumholtz’s treekangaroos though occur on the Atherton Tablelands, mostly on private land where their habitat is prone to alteration, fragmentation or destruction for commercial purpo ...
Biology 1020: Course Outline
... This course examines the relationships between organisms and their environments from a number of perspectives. We first examine the relationships between organisms and their physical environment, and then study their contributions to energy flow, trophic structure, and the cycling of matter within e ...
... This course examines the relationships between organisms and their environments from a number of perspectives. We first examine the relationships between organisms and their physical environment, and then study their contributions to energy flow, trophic structure, and the cycling of matter within e ...
IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT)
... Rotifers, the wheel animalcules, could be readily recognized by their small size (0.4 mm to 3.0 mm) and the wheel like rotating structure present at the anterior end. They are omnivorous filter feeders and their abundance depends on the amount of the predation from invertebrates and small fish [1]. ...
... Rotifers, the wheel animalcules, could be readily recognized by their small size (0.4 mm to 3.0 mm) and the wheel like rotating structure present at the anterior end. They are omnivorous filter feeders and their abundance depends on the amount of the predation from invertebrates and small fish [1]. ...
Wildlife Research - CSIRO Publishing
... since fire and to changes in vegetation structure, utilising (a) simple linear representations of time since fire and (b) a quadratic (polynomial) transformation of time since fire. The assumption behind the use of a polynomial transformation was based on observations of eucalypt stand development ( ...
... since fire and to changes in vegetation structure, utilising (a) simple linear representations of time since fire and (b) a quadratic (polynomial) transformation of time since fire. The assumption behind the use of a polynomial transformation was based on observations of eucalypt stand development ( ...
Ecosystem engineering and biodiversity in coastal sediments
... reworking by infauna may facilitate other infauna and inhibits epibenthos. On a larger scale, these antagonistic processes generate patchiness and habitat diversity. Due to such interaction, anthropogenic inXuences can strongly modify the engineering community by removing autogenic ecosystem enginee ...
... reworking by infauna may facilitate other infauna and inhibits epibenthos. On a larger scale, these antagonistic processes generate patchiness and habitat diversity. Due to such interaction, anthropogenic inXuences can strongly modify the engineering community by removing autogenic ecosystem enginee ...
Why Healthy Oceans Need Sharks
... allows top predators to switch prey species when certain populations are low, thereby allowing prey species to persist.2,3 Apex predators not only affect population dynamics by consuming prey, but they also can control the spatial distribution of potential prey through intimidation. Fear of shark pr ...
... allows top predators to switch prey species when certain populations are low, thereby allowing prey species to persist.2,3 Apex predators not only affect population dynamics by consuming prey, but they also can control the spatial distribution of potential prey through intimidation. Fear of shark pr ...
Extinction order and altered community structure
... of species extinctions and species! abundance structures affected ecosystem function for artificially constructed communities as well as real beetle and bee communities. First, we isolated the functional effect of extinction order by using randomized simulations that controlled for concurrent change ...
... of species extinctions and species! abundance structures affected ecosystem function for artificially constructed communities as well as real beetle and bee communities. First, we isolated the functional effect of extinction order by using randomized simulations that controlled for concurrent change ...
BAP fungi handbook - Natural England publications
... and imagine what happened to all those tonnes of leaves, acorns, twigs, branches, roots and heartwood over the centuries. What became of it all, where are all those components now? Although fungi are major players among the Earth’s biodiversity with an estimated 1.5 million species (Hawksworth 1991) ...
... and imagine what happened to all those tonnes of leaves, acorns, twigs, branches, roots and heartwood over the centuries. What became of it all, where are all those components now? Although fungi are major players among the Earth’s biodiversity with an estimated 1.5 million species (Hawksworth 1991) ...
Population
... climate for amphibians • Unfortunately, they became extinct within 25 years - Due to global warming’s drying effect on the forest Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
... climate for amphibians • Unfortunately, they became extinct within 25 years - Due to global warming’s drying effect on the forest Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
Refusing Help and Inflicting Harm
... mental states, that is, in terms of desires. If this characterisation is understood in a strict sense, then it is false that all living organisms have a will to live. This is because not all living organisms possess a capacity to have mental states and, therefore, not all of them can entertain the d ...
... mental states, that is, in terms of desires. If this characterisation is understood in a strict sense, then it is false that all living organisms have a will to live. This is because not all living organisms possess a capacity to have mental states and, therefore, not all of them can entertain the d ...
Invasive Species in the Sonoran Desert
... the ecosystem. Cats are an example of this. Although feral cats constitute a major problem in urban and suburban areas, they don’t do as well beyond urban areas because of predation by coyotes and bobcats. (Crooks & Soule, 1999)Other species have found some balance with the ecosystem. Honeybees, ...
... the ecosystem. Cats are an example of this. Although feral cats constitute a major problem in urban and suburban areas, they don’t do as well beyond urban areas because of predation by coyotes and bobcats. (Crooks & Soule, 1999)Other species have found some balance with the ecosystem. Honeybees, ...
Evolutionary Conservation Biology - user"s empty page at IIASA / 2013
... Gordon J. MacDonald and Arne B. Jernelöv, and current director Leen Hordijk, have provided critical support. Two workshops at IIASA brought together all the authors to discuss their contributions and thus served as an important element in the strategy to achieve as much continuity across the subject ...
... Gordon J. MacDonald and Arne B. Jernelöv, and current director Leen Hordijk, have provided critical support. Two workshops at IIASA brought together all the authors to discuss their contributions and thus served as an important element in the strategy to achieve as much continuity across the subject ...
succession - Cary Institute of Ecosystem Studies
... in the understory, although canopy trees would clearly be the dominant life form. Succession on bare mineral substrates, which is limited by the availability of nutrients, may begin with extended periods that are dominated by cyanobacteria and mosses, which will precede dominance by herbaceous speci ...
... in the understory, although canopy trees would clearly be the dominant life form. Succession on bare mineral substrates, which is limited by the availability of nutrients, may begin with extended periods that are dominated by cyanobacteria and mosses, which will precede dominance by herbaceous speci ...
Ecology Powerpoint - Warren County Schools
... the small mammals, amphibians, insects, and fruit found in this habitat. Red foxes are active at night. They provide blood for blackflies and mosquitoes, and are host to numerous diseases. The scraps, or carrion, left behind after a fox's meal provide food for many small scavengers and decomposers. ...
... the small mammals, amphibians, insects, and fruit found in this habitat. Red foxes are active at night. They provide blood for blackflies and mosquitoes, and are host to numerous diseases. The scraps, or carrion, left behind after a fox's meal provide food for many small scavengers and decomposers. ...
Historical and ecological dimensions of global patterns
... Prior to the development of population and community ecology in the 1960’s, global patterns of species diversity, particularly the increase in diversity towards the equator, were explained by the greater age and more stable environment of the tropics or by a combination of age and area. Ecologists l ...
... Prior to the development of population and community ecology in the 1960’s, global patterns of species diversity, particularly the increase in diversity towards the equator, were explained by the greater age and more stable environment of the tropics or by a combination of age and area. Ecologists l ...
Checks on Population Growth
... their previous level. (And also make it unlikely that many animals will survive long enough to show signs of aging — link to discussion.) These factors are described as density-independent because they exert their effect irrespective of the size of the population when the catastrophe struck. This gr ...
... their previous level. (And also make it unlikely that many animals will survive long enough to show signs of aging — link to discussion.) These factors are described as density-independent because they exert their effect irrespective of the size of the population when the catastrophe struck. This gr ...
5 Annual Undergraduate Research Symposium 2013
... Mariah Allen, Lake Forest College, and Chicago Botanic Garden, Glencoe, IL In prairie restoration, land managers use aboveground methods that focus on the plant community, such as removal of invasive species, reintroduction of native species, and prescribed fire. The soil microbial community plays a ...
... Mariah Allen, Lake Forest College, and Chicago Botanic Garden, Glencoe, IL In prairie restoration, land managers use aboveground methods that focus on the plant community, such as removal of invasive species, reintroduction of native species, and prescribed fire. The soil microbial community plays a ...
Using the focal species approach for conserving biodiversity in
... indicators because they have slower turnover and are more stable and their population changes are directly related to environmental change (as opposed to over and undershooting carrying capacity like some r-selected species). However, others (e.g., Caro & O’Doherty 1999) argue that indicators should ...
... indicators because they have slower turnover and are more stable and their population changes are directly related to environmental change (as opposed to over and undershooting carrying capacity like some r-selected species). However, others (e.g., Caro & O’Doherty 1999) argue that indicators should ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.