Ecosystem Responses to Disturbance
... Biodiversity takes various forms in different parts of the Earth because species diversity, genetic diversity, and ecological diversity have evolved over billions of years. ...
... Biodiversity takes various forms in different parts of the Earth because species diversity, genetic diversity, and ecological diversity have evolved over billions of years. ...
scandinavian wolf ecology and management from a multispecies
... therefore an important support for Swedish authorities in handling this controversial issue. From communication with the Scandinavian management authorities on specific management relevant research questions, we have identified some specific areas that deserve further focus. These include evaluation ...
... therefore an important support for Swedish authorities in handling this controversial issue. From communication with the Scandinavian management authorities on specific management relevant research questions, we have identified some specific areas that deserve further focus. These include evaluation ...
Urban Systems - Stockholm Resilience Centre
... Interestingly, the number of plant species in urban areas often correlates with the human population size. Species number often increases with log number of human inhabitants, and that relationship is stronger than the correlation with city area. The age of the city also affects species richness; la ...
... Interestingly, the number of plant species in urban areas often correlates with the human population size. Species number often increases with log number of human inhabitants, and that relationship is stronger than the correlation with city area. The age of the city also affects species richness; la ...
Ecological Inventory Manual - Legacy | The Landscape Connection
... “In perhaps the first demonstration that The Wildlands Project concept (of core wilderness areas connected by a web of corridors) is more than pie in the sky here in California, in early October the San Francisco based Save-the-Redwoods League purchased critical pieces of a wildlife corridor between ...
... “In perhaps the first demonstration that The Wildlands Project concept (of core wilderness areas connected by a web of corridors) is more than pie in the sky here in California, in early October the San Francisco based Save-the-Redwoods League purchased critical pieces of a wildlife corridor between ...
mourning dove - managed species
... wild, and more than 17 years in captivity. Northern populations are migratory, and the mortality rate of juveniles can be as high as 70% in their first year of life. Many doves fall prey to hunting and predation by hawks, especially the Cooper's ...
... wild, and more than 17 years in captivity. Northern populations are migratory, and the mortality rate of juveniles can be as high as 70% in their first year of life. Many doves fall prey to hunting and predation by hawks, especially the Cooper's ...
Joint Submission DELWP, DEDJTR and Parks Victoria Attachment
... DEDJTR manages the risks and incursions of both vertebrate and invertebrate invasive species. For example, globalisation of trade and commerce has accelerated the spread of a subset of seven species of ants – the ‘tramp’ ants – widely beyond their areas of origin. Tramp ants share genetic, behaviour ...
... DEDJTR manages the risks and incursions of both vertebrate and invertebrate invasive species. For example, globalisation of trade and commerce has accelerated the spread of a subset of seven species of ants – the ‘tramp’ ants – widely beyond their areas of origin. Tramp ants share genetic, behaviour ...
Variability in population and community biomass in a grassland
... The idea that diversity begets stability has been prevalent in ecological literature for a long time (Odum 1953, Elton 1958). For example, the well-known Shannon Wiener index of diversity H? was introduced to ecology by MacArthur (1955) as an index of stability. The idea behind it was that, if there ...
... The idea that diversity begets stability has been prevalent in ecological literature for a long time (Odum 1953, Elton 1958). For example, the well-known Shannon Wiener index of diversity H? was introduced to ecology by MacArthur (1955) as an index of stability. The idea behind it was that, if there ...
Chapter 8 Cornell Notes
... Which types of organisms are more ____________________________________________ closely related, a pair of organisms that have undergone convergent ____________________________________________ evolution, or a pair of organisms that have undergone divergent evolution? _________________________________ ...
... Which types of organisms are more ____________________________________________ closely related, a pair of organisms that have undergone convergent ____________________________________________ evolution, or a pair of organisms that have undergone divergent evolution? _________________________________ ...
Chapter 10 - Lakeland Regional High School
... another mass extinction. • The rate of extinctions is estimated to have increased by a multiple of 50 since 1800, with up to 25 percent of all species on Earth becoming extinct between 1800 and 2100. • The current mass extinction is different from those of the past because humans are the primary cau ...
... another mass extinction. • The rate of extinctions is estimated to have increased by a multiple of 50 since 1800, with up to 25 percent of all species on Earth becoming extinct between 1800 and 2100. • The current mass extinction is different from those of the past because humans are the primary cau ...
Recreation and Trail Impacts on Wildlife Species
... use of compacted trails created by snowmobiles (Richens and Lavigne 1978 in Boyle and Samson 1985). Impacts on species from recreational trails and various types of trail use (e.g. hiking, biking, etc.) are categorized into the following headings: 1. Trapping/poaching – Although trapping is not allo ...
... use of compacted trails created by snowmobiles (Richens and Lavigne 1978 in Boyle and Samson 1985). Impacts on species from recreational trails and various types of trail use (e.g. hiking, biking, etc.) are categorized into the following headings: 1. Trapping/poaching – Although trapping is not allo ...
Trophic resource partitioning within a shorebird community feeding
... of prey species (Nebel, 2005; Nebel, 2011). Species should differ in selection of prey of different sizes, with larger-bodied species feeding on larger prey of wider size range and small-bodied species feeding on smaller prey with less variability in their selection. Different methods such as stomac ...
... of prey species (Nebel, 2005; Nebel, 2011). Species should differ in selection of prey of different sizes, with larger-bodied species feeding on larger prey of wider size range and small-bodied species feeding on smaller prey with less variability in their selection. Different methods such as stomac ...
PFD
... Pollution, including from excess nutrients, has been brought to levels that are not detrimental to ecosystem function and biodiversity. Invasive alien species are identified, prioritized, and controlled or eradicated, and measures are in place to control pathways.... To have minimized the multiple p ...
... Pollution, including from excess nutrients, has been brought to levels that are not detrimental to ecosystem function and biodiversity. Invasive alien species are identified, prioritized, and controlled or eradicated, and measures are in place to control pathways.... To have minimized the multiple p ...
Empirical perspectives on species borders: from traditional
... birds, mammals and butterflies in Mexico. They found that habitat requirements derived from analysis of the distribution of one species could be used to predict the distribution of its sister taxon with remarkable accuracy. However, an analyses of range sizes among con-generic species on different c ...
... birds, mammals and butterflies in Mexico. They found that habitat requirements derived from analysis of the distribution of one species could be used to predict the distribution of its sister taxon with remarkable accuracy. However, an analyses of range sizes among con-generic species on different c ...
Ecosystems in Action: Lessons from Marine Ecology about Recovery
... rate of recovery from disturbance events of different magnitudes and sources, such as wave exposure, changes in predator distributions, and physiological stress, has been particularly measurable in these environments, providing much insight into the role of disturbance in community structure (Paine ...
... rate of recovery from disturbance events of different magnitudes and sources, such as wave exposure, changes in predator distributions, and physiological stress, has been particularly measurable in these environments, providing much insight into the role of disturbance in community structure (Paine ...
Decomposition of Leaf Litter in a U.S. Saltmarsh is Driven by
... detrital sources used herein. The detritivores differ in feeding mode and impact on mass loss, and the litter types differ in chemistry and structure. Nevertheless, neither different litter sources nor different detritivore species interacted in a complementary way to enhance detrital mass loss. Alt ...
... detrital sources used herein. The detritivores differ in feeding mode and impact on mass loss, and the litter types differ in chemistry and structure. Nevertheless, neither different litter sources nor different detritivore species interacted in a complementary way to enhance detrital mass loss. Alt ...
- Journal of Rangeland Science
... grazers and requires to more time to rich itself. The grazing area had the least species diversity and richness (1.5-3.2) along with increasing of the number of plots. Its evenness curve, however, is the most from less number of plots and it will decrease when the number of plots increased. As many ...
... grazers and requires to more time to rich itself. The grazing area had the least species diversity and richness (1.5-3.2) along with increasing of the number of plots. Its evenness curve, however, is the most from less number of plots and it will decrease when the number of plots increased. As many ...
COMPETITION
... 2. Realized niche – area that an animal occupies in the presence of competitors. a. Set of resources and environmental condition constrained by competition or predation that allow a single species to persist in a particular region. b. Interspecific competition excludes a species from certain areas o ...
... 2. Realized niche – area that an animal occupies in the presence of competitors. a. Set of resources and environmental condition constrained by competition or predation that allow a single species to persist in a particular region. b. Interspecific competition excludes a species from certain areas o ...
Desert Tortoise Use of Burned Habitat in the Eastern Mojave Desert
... tortoises that were on the surface often near the burrow entrance with fully extended limbs and distinctive posturing to maximize thermal exposure. We identified moving when we observed tortoises walking across the landscape. We identified foraging when we observed tortoises eating. We classified mi ...
... tortoises that were on the surface often near the burrow entrance with fully extended limbs and distinctive posturing to maximize thermal exposure. We identified moving when we observed tortoises walking across the landscape. We identified foraging when we observed tortoises eating. We classified mi ...
Notes and Comments Diversity-Stability Relationships: Statistical Inevitability or Ecological Consequence?
... individual species depends on mean abundance as σ 2i 5 cm zi. The coefficient of variation for a community containing a single species would then be CV (1) 5 100c 1/2 m (z22)/2 . For a community of k species, with each species having an abundance of m/k and with covariances of 0, the variance in the ...
... individual species depends on mean abundance as σ 2i 5 cm zi. The coefficient of variation for a community containing a single species would then be CV (1) 5 100c 1/2 m (z22)/2 . For a community of k species, with each species having an abundance of m/k and with covariances of 0, the variance in the ...
Diversity-stability relationships: statistical inevitability or ecological
... individual species depends on mean abundance as σ 2i 5 cm zi. The coefficient of variation for a community containing a single species would then be CV (1) 5 100c 1/2 m (z22)/2 . For a community of k species, with each species having an abundance of m/k and with covariances of 0, the variance in the ...
... individual species depends on mean abundance as σ 2i 5 cm zi. The coefficient of variation for a community containing a single species would then be CV (1) 5 100c 1/2 m (z22)/2 . For a community of k species, with each species having an abundance of m/k and with covariances of 0, the variance in the ...
- University of East Anglia
... local abundance or range extent (e.g. Davies et al. 2000; Henle et al. 2004; Gray et al. ...
... local abundance or range extent (e.g. Davies et al. 2000; Henle et al. 2004; Gray et al. ...
2007-2008 - Illinois Natural History Survey
... Collection-based studies remain a core area of research at INHS. Its world-renowned collections 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 scienti ...
... Collection-based studies remain a core area of research at INHS. Its world-renowned collections 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 scienti ...
Chapter 2
... Eventually many of these genes were incorporated into the eukaryotic genome, or if they were redundant were lost. The important aspect is they allowed for compartmentalization of specialized physiological functions such as photosynthesis and respiration from the rest of the cell, and simultaneously ...
... Eventually many of these genes were incorporated into the eukaryotic genome, or if they were redundant were lost. The important aspect is they allowed for compartmentalization of specialized physiological functions such as photosynthesis and respiration from the rest of the cell, and simultaneously ...
How does the 50/500 rule apply to MVPs?
... taxa (e.g., monogamous birds, marine fishes, etc.) rather than using a single estimate derived from all taxa. In addition, the Ne/NC ratio can vary within species; for example, the ratio has been found to increase as NC decreases in several species [42]. Therefore, more research is required to under ...
... taxa (e.g., monogamous birds, marine fishes, etc.) rather than using a single estimate derived from all taxa. In addition, the Ne/NC ratio can vary within species; for example, the ratio has been found to increase as NC decreases in several species [42]. Therefore, more research is required to under ...
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.