Genetic diversity in widespread species is not congruent with
... We estimated three common diversity indices for both the species and gene levels of biodiversity: diversity, rarity and endemism. The three indices of biodiversity used here are similar to total, threatened and endemic species richness as described in Orme et al. (2005), or to species richness, thre ...
... We estimated three common diversity indices for both the species and gene levels of biodiversity: diversity, rarity and endemism. The three indices of biodiversity used here are similar to total, threatened and endemic species richness as described in Orme et al. (2005), or to species richness, thre ...
Walla Walla Watershed Planning - Pomeroy Conservation District
... about using feet of fence as a goal that is an enhancement. In some watersheds we might only have to maintain current actions. ...
... about using feet of fence as a goal that is an enhancement. In some watersheds we might only have to maintain current actions. ...
BfN-Skripten 375 - Bundesamt für Naturschutz
... 8.5.3 Design of ecological networks designed for particular species or groups of species ........................................................................................................... 108 8.5.4 Assessment of physical network structure .................................................... ...
... 8.5.3 Design of ecological networks designed for particular species or groups of species ........................................................................................................... 108 8.5.4 Assessment of physical network structure .................................................... ...
Predator-prey interactions: lecture content
... Lesson: theory of mutualism needs to incorporate lifehistory characteristics, and negative feedback mitigating against mutualism at higher population densities ...
... Lesson: theory of mutualism needs to incorporate lifehistory characteristics, and negative feedback mitigating against mutualism at higher population densities ...
Word - Discovering Florida Scrub
... throughout Florida. These ridges also support other dry, but very different habitats, such as sandhill and scrubby flatwoods. As seen on the map, three major groupings of scrub exist: coastal panhandle, coastal peninsula, and inland peninsula. The biggest areas of scrub are found inland with the la ...
... throughout Florida. These ridges also support other dry, but very different habitats, such as sandhill and scrubby flatwoods. As seen on the map, three major groupings of scrub exist: coastal panhandle, coastal peninsula, and inland peninsula. The biggest areas of scrub are found inland with the la ...
Environment
... Current Environment Problems continued • Water Pollution – runoff from sewers, homes, industry = pollutants in water Water areas with high death rates due to phosphate (from soaps in runoff water) increase. Algae increase with phosphate and use up oxygen = alga bloom and fish death. pH change kills ...
... Current Environment Problems continued • Water Pollution – runoff from sewers, homes, industry = pollutants in water Water areas with high death rates due to phosphate (from soaps in runoff water) increase. Algae increase with phosphate and use up oxygen = alga bloom and fish death. pH change kills ...
Seicercus and Phylloscopus the Old World leaf warblers ( The roles
... *[email protected] Electronic supplementary material is available at http://dx.doi.org/ 10.1098/rstb.2009.0269 or via http://rstb.royalsocietypublishing.org. One contribution of 11 to a Theme Issue ‘Genomics of speciation’. ...
... *[email protected] Electronic supplementary material is available at http://dx.doi.org/ 10.1098/rstb.2009.0269 or via http://rstb.royalsocietypublishing.org. One contribution of 11 to a Theme Issue ‘Genomics of speciation’. ...
The University of Chicago Press The American Society of Naturalists
... novel plant species rarely invaded until large-scale humanmediated oceanic transport began about 500 years ago. The introduced plant species that have become naturalized have essentially doubled plant diversity on oceanic islands, with the mean increase in species numbers being 97% across 13 islands ...
... novel plant species rarely invaded until large-scale humanmediated oceanic transport began about 500 years ago. The introduced plant species that have become naturalized have essentially doubled plant diversity on oceanic islands, with the mean increase in species numbers being 97% across 13 islands ...
Stopping evolution: Genetic management of captive
... beetle, California condor, and many other species. While waiting for opportunities to reestablish healthy populations in the wild, captive populations often serve as the ultimate insurance against the final loss of a species, as in the case of Przewalski’s horse, Pere David’s deer, Hawaiian crow, ad ...
... beetle, California condor, and many other species. While waiting for opportunities to reestablish healthy populations in the wild, captive populations often serve as the ultimate insurance against the final loss of a species, as in the case of Przewalski’s horse, Pere David’s deer, Hawaiian crow, ad ...
Conserving Biodiversity - Wildlife Reserves Singapore
... Secondary forests are often considered to have little conservation value and may consequently be cleared for development projects. Over 85% of the forested areas in Singapore are composed of secondary forests, so it is imperative to document the biodiversity residing in the various forest types to ...
... Secondary forests are often considered to have little conservation value and may consequently be cleared for development projects. Over 85% of the forested areas in Singapore are composed of secondary forests, so it is imperative to document the biodiversity residing in the various forest types to ...
Twenty-Five Years of Paradox in Plant-Herbivore
... occurring in ecosystems worldwide (44). Herbivores must consume enough to meet their nutritional needs and simultaneously avoid over ingesting too much of any particular nutrient or toxin. In so doing, they affect the dynamics of vegetation. We can make four generalizations about these relationships ...
... occurring in ecosystems worldwide (44). Herbivores must consume enough to meet their nutritional needs and simultaneously avoid over ingesting too much of any particular nutrient or toxin. In so doing, they affect the dynamics of vegetation. We can make four generalizations about these relationships ...
Intraspecific genetic variation and species coexistence in plant
... competing species and how these differences enable coexistence—or not. Here, species interactions are conceptually understood by their amount of overlap in a multidimensional niche space made up of resources, natural enemies, time and space. When species show large niche overlap, their coexistence i ...
... competing species and how these differences enable coexistence—or not. Here, species interactions are conceptually understood by their amount of overlap in a multidimensional niche space made up of resources, natural enemies, time and space. When species show large niche overlap, their coexistence i ...
Carrying Capacity of Ecosystems
... Why are Invasive Species such a problem? Foreign species often compete with native species for food and habitat, OR they may prey on them. Generally, invasive competitors and predators have a greater negative affect on local species than native competitors or predators. This is often due to the fac ...
... Why are Invasive Species such a problem? Foreign species often compete with native species for food and habitat, OR they may prey on them. Generally, invasive competitors and predators have a greater negative affect on local species than native competitors or predators. This is often due to the fac ...
A leaf-height-seed (LHS) plant ecology strategy scheme
... aims, however. If someone’s expectation from a strategy scheme is that it will express whatever they see as most important in strategic variation between species, they will often be dissatisfied with schemes proposed by others, because they disagree about what is most important and because the veget ...
... aims, however. If someone’s expectation from a strategy scheme is that it will express whatever they see as most important in strategic variation between species, they will often be dissatisfied with schemes proposed by others, because they disagree about what is most important and because the veget ...
Program - Florida Wildlife Society
... to develop regional water management targets to maximize landscape-scale benefits and the flexibility to define objectives by weighting species importance. Bio: James Beerens is an Ecologist at the Wetland and Aquatic Research Center of the U.S. Geological Survey. His research program provides quant ...
... to develop regional water management targets to maximize landscape-scale benefits and the flexibility to define objectives by weighting species importance. Bio: James Beerens is an Ecologist at the Wetland and Aquatic Research Center of the U.S. Geological Survey. His research program provides quant ...
Individual dispersal, landscape connectivity and
... We review whether landscape connectivity estimates could gain in both precision and generality by incorporating three fundamental outcomes of dispersal theory. Firstly, dispersal is a multi-causal process; its restriction to an ‘escape reaction’ to environmental unsuitability is an oversimplificatio ...
... We review whether landscape connectivity estimates could gain in both precision and generality by incorporating three fundamental outcomes of dispersal theory. Firstly, dispersal is a multi-causal process; its restriction to an ‘escape reaction’ to environmental unsuitability is an oversimplificatio ...
Genetic Diversity
... • Species diversity is the variety of species in an ecosystem or throughout the biosphere. • According to the U.S. Endangered Species Act: – An endangered species is “in danger of becoming extinct throughout all or a significant portion of its range.” – A threatened species is likely to become endan ...
... • Species diversity is the variety of species in an ecosystem or throughout the biosphere. • According to the U.S. Endangered Species Act: – An endangered species is “in danger of becoming extinct throughout all or a significant portion of its range.” – A threatened species is likely to become endan ...
Guns, Germs and Steel
... • But another way of thinking is that those species who coevolved with us into domestication have also been “winning” the evolutionary game, or multiplying their numbers with us (more dogs or wolves?; more horses or zebras?; more corn or teosinthe?). Who “domesticates” whom? Who started the relation ...
... • But another way of thinking is that those species who coevolved with us into domestication have also been “winning” the evolutionary game, or multiplying their numbers with us (more dogs or wolves?; more horses or zebras?; more corn or teosinthe?). Who “domesticates” whom? Who started the relation ...
Mapping the distribution of dholes
... of other carnivores (Woodroffe and Ginsberg 2005). This implies that dholes have their own unique impacts on prey species and ecosystem processes, and that their conservation is important for maintaining ecological function and community integrity. To explore this influence and better elucidate the ...
... of other carnivores (Woodroffe and Ginsberg 2005). This implies that dholes have their own unique impacts on prey species and ecosystem processes, and that their conservation is important for maintaining ecological function and community integrity. To explore this influence and better elucidate the ...
Interspecific Abundance-Range Size Relationships
... at low densities will tend to be recorded from fewer localities than species that occur at high densities, even if they are actually equally widely distributed. Indeed, it is not unknown for locally rare species, originally thought to have very restricted ranges, to be found to be considerably more ...
... at low densities will tend to be recorded from fewer localities than species that occur at high densities, even if they are actually equally widely distributed. Indeed, it is not unknown for locally rare species, originally thought to have very restricted ranges, to be found to be considerably more ...
Competition
... the quantity of the resource below some critical level where the other species is unable to replace its numbers by reproduction. • Exploitation does not always cause the exclusion of one species. They may coexist, with a decrease in their potential for growth. For this to occur, they must partition ...
... the quantity of the resource below some critical level where the other species is unable to replace its numbers by reproduction. • Exploitation does not always cause the exclusion of one species. They may coexist, with a decrease in their potential for growth. For this to occur, they must partition ...
CAMPBELL’S COUP O‘AHU ISLAND HOPPING
... March through September for breeding and fledging season.) The visitor restrictions protect the refuge’s fauna and flora and ensure its fragile ecosystem isn’t overwhelmed by foot traffic. Kenneth Griggs, acting project leader for the O‘ahu and Maui National Wildlife Refuge Complexes, says the U.S. ...
... March through September for breeding and fledging season.) The visitor restrictions protect the refuge’s fauna and flora and ensure its fragile ecosystem isn’t overwhelmed by foot traffic. Kenneth Griggs, acting project leader for the O‘ahu and Maui National Wildlife Refuge Complexes, says the U.S. ...
Connections between ecology, biogeography, and paleobiology
... species should be relatively unchanged. Local abundance, however, should exhibit more variation at the edges rather than near the centre. When environmental conditions are already low in quality, slight changes are likely to cause large changes in environmental suitability and these are more likely ...
... species should be relatively unchanged. Local abundance, however, should exhibit more variation at the edges rather than near the centre. When environmental conditions are already low in quality, slight changes are likely to cause large changes in environmental suitability and these are more likely ...
Soft-bottom intertidal ecosystems shaped by ecosystem engineers
... foodweb-subsets through the creation of new environments within an ecosystems by multiple ecosystem engineers over time (C). Nodes (red-yellow gradient) represent species and grey lines represent their interactions within the network. Food web images were made with Network3D (Yoon et al. 2004; Willi ...
... foodweb-subsets through the creation of new environments within an ecosystems by multiple ecosystem engineers over time (C). Nodes (red-yellow gradient) represent species and grey lines represent their interactions within the network. Food web images were made with Network3D (Yoon et al. 2004; Willi ...
Sustainable Wildlife Management and Human-Wildlife Conflict
... relationship between wildlife and humans and the underlying conflicts over wildlife among people with different values, objectives and experiences. Reducing impacts may not reduce conflict if the underlying causes are not addressed. An important source of conflict lies in the competition between gro ...
... relationship between wildlife and humans and the underlying conflicts over wildlife among people with different values, objectives and experiences. Reducing impacts may not reduce conflict if the underlying causes are not addressed. An important source of conflict lies in the competition between gro ...
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.