Is There a Latitudinal Gradient in the Importance of Biotic Interactions?
... sites and species are needed to make this comparison more compelling. A potentially powerful approach to this question is to make phylogenetically controlled comparisons between species residing at different latitudes. For example, Martin et al. (2000) measured predation rates for eight avian congen ...
... sites and species are needed to make this comparison more compelling. A potentially powerful approach to this question is to make phylogenetically controlled comparisons between species residing at different latitudes. For example, Martin et al. (2000) measured predation rates for eight avian congen ...
EFFECTS OF HABITAT FRAGMENTATION ON
... reason is that when ecologists think of fragmentation, the word invokes more than habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat ...
... reason is that when ecologists think of fragmentation, the word invokes more than habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat ...
Avian Abundance and Diversity in CREP and Fescue Fields in the
... the Conservation Reserve Program (CRP) and was developed to work in a similar manner. The CRP was introduced by the Food Security Act of 1985 and is administered by the USDA with assistance from the Natural Resources Conservation Service (NRCS). The main goals of this program are to improve water qu ...
... the Conservation Reserve Program (CRP) and was developed to work in a similar manner. The CRP was introduced by the Food Security Act of 1985 and is administered by the USDA with assistance from the Natural Resources Conservation Service (NRCS). The main goals of this program are to improve water qu ...
American Mink (Mustela vison) and its impact on native species in
... in terms of foraging ability, thus limiting its competitive efficiency (Bryce et al. 2002). In its native range of North America, the Grey competes with multiple species of squirrel. The Red only competed intraspecifically, and when presented with another betteradapted species, it was unable to comp ...
... in terms of foraging ability, thus limiting its competitive efficiency (Bryce et al. 2002). In its native range of North America, the Grey competes with multiple species of squirrel. The Red only competed intraspecifically, and when presented with another betteradapted species, it was unable to comp ...
LISTED SPECIES Sacramento Winter-Run Chinook Salmon
... An "abundance index" is used to estimate a proportion of the population because sampling an entire population is nearly impossible and a mark-recapture study using delta smelt cannot be done because the fish is too fragile. An index is dimensionless (i.e., it has no unit of measurement). By systemat ...
... An "abundance index" is used to estimate a proportion of the population because sampling an entire population is nearly impossible and a mark-recapture study using delta smelt cannot be done because the fish is too fragile. An index is dimensionless (i.e., it has no unit of measurement). By systemat ...
A cross-system synthesis of consumer and nutrient
... extremely unstable, displaying limit-cycle or chaotic behaviour across much of their parameter space, even when the chains are persistent (i.e. all three species maintain population densities bounded away from zero indefinitely [Abrams & Roth 1994]). How generally other ecological factors such as sp ...
... extremely unstable, displaying limit-cycle or chaotic behaviour across much of their parameter space, even when the chains are persistent (i.e. all three species maintain population densities bounded away from zero indefinitely [Abrams & Roth 1994]). How generally other ecological factors such as sp ...
Is There a Latitudinal Gradient in the Importance of Biotic Interactions?
... sites and species are needed to make this comparison more compelling. A potentially powerful approach to this question is to make phylogenetically controlled comparisons between species residing at different latitudes. For example, Martin et al. (2000) measured predation rates for eight avian congen ...
... sites and species are needed to make this comparison more compelling. A potentially powerful approach to this question is to make phylogenetically controlled comparisons between species residing at different latitudes. For example, Martin et al. (2000) measured predation rates for eight avian congen ...
Western green lizard (Lacerta bilineata) - GB non
... capturing L. bilineata from Bournemouth (along with the syntopic and even-more-numerous introduced European wall lizards Podarcis muralis if they so wished). This is pure speculation, but it presents a real potential pathway. Children and holidaymakers might also capture L. bilineata and take them a ...
... capturing L. bilineata from Bournemouth (along with the syntopic and even-more-numerous introduced European wall lizards Podarcis muralis if they so wished). This is pure speculation, but it presents a real potential pathway. Children and holidaymakers might also capture L. bilineata and take them a ...
Heteromorphic Life Histories of Certain Marine Algae as Adaptations
... established, stable life cycles involving several ecologically distinct stages. T o these we add certain heteromorphic algae, which by Istock's (1967) criteria should be particularly evolutionarily unstable: the stages are often found under different growing conditions, and some, rather than being l ...
... established, stable life cycles involving several ecologically distinct stages. T o these we add certain heteromorphic algae, which by Istock's (1967) criteria should be particularly evolutionarily unstable: the stages are often found under different growing conditions, and some, rather than being l ...
Applying the Reference Site Model to Riparian Restoration Sites in
... ecosystem attributes that can be used to measure the success of any ecological restoration project. The first of those attributes states that a restored ecosystem should show “similar diversity and community structure in comparison with reference sites” (SER 2004). In a review of 68 articles in the ...
... ecosystem attributes that can be used to measure the success of any ecological restoration project. The first of those attributes states that a restored ecosystem should show “similar diversity and community structure in comparison with reference sites” (SER 2004). In a review of 68 articles in the ...
frogs – conservation
... Australia has a fascinating and spectacular variety of frogs, over 210 of the world’s ~5,000 species. The majority of Australian frogs are unique due to Australia’s long isolation. The origin of Australia’s frog fauna can be traced back many millions of years when Australia formed part of a large la ...
... Australia has a fascinating and spectacular variety of frogs, over 210 of the world’s ~5,000 species. The majority of Australian frogs are unique due to Australia’s long isolation. The origin of Australia’s frog fauna can be traced back many millions of years when Australia formed part of a large la ...
Warmwater Streams
... the Northwest, Northeast, and Southeast. Stream ecosystems derive their energy from dead and living organic matter. Dead organic matter falls into a stream as leaves, grasses, and wood or enters as dissolved organic matter from groundwater sources (Cummins 1974; Brunke and Gonser 1997). Live organic ...
... the Northwest, Northeast, and Southeast. Stream ecosystems derive their energy from dead and living organic matter. Dead organic matter falls into a stream as leaves, grasses, and wood or enters as dissolved organic matter from groundwater sources (Cummins 1974; Brunke and Gonser 1997). Live organic ...
effects of habitat fragmentation on biodiversity
... reason is that when ecologists think of fragmentation, the word invokes more than habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat ...
... reason is that when ecologists think of fragmentation, the word invokes more than habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat ...
participants of the dartmouth biology fsp 2013
... cooperative and egalitarian relationship among undergraduates in each project. Where faculty or graduate student mentors have pre-designed a project, this is indicated after the author listing at the head of the paper. For each paper there is a faculty editor (also indicated after the author listing ...
... cooperative and egalitarian relationship among undergraduates in each project. Where faculty or graduate student mentors have pre-designed a project, this is indicated after the author listing at the head of the paper. For each paper there is a faculty editor (also indicated after the author listing ...
The fate of Amazonian forest fragments: A 32-year
... pasture and regrowth forest) and this in turn has strongly influenced fragment dynamics and faunal persistence. Rare weather events, especially windstorms and droughts, have further altered fragment ecology. In general, populations and communities of species in fragments are hyperdynamic relative to ...
... pasture and regrowth forest) and this in turn has strongly influenced fragment dynamics and faunal persistence. Rare weather events, especially windstorms and droughts, have further altered fragment ecology. In general, populations and communities of species in fragments are hyperdynamic relative to ...
Small mouthed Salamander (Ambystoma texanum)
... applying available recovery techniques and maintaining existing populations. In addition, based on the fact that the species inhabits a small island in Canada, it will likely always be vulnerable to human-caused stressors and natural, chance events (MacArthur and Wilson 1963). ...
... applying available recovery techniques and maintaining existing populations. In addition, based on the fact that the species inhabits a small island in Canada, it will likely always be vulnerable to human-caused stressors and natural, chance events (MacArthur and Wilson 1963). ...
Chapter 8 Restoration Strategies - Garry Oak Ecosystems Recovery
... ecosystems. Although most (95%) of the pre-contact Garry Oak ecosystems have been lost to urban and suburban growth and agriculture, those that remain are treasured parts of the local landscape. Many local parks and ecological reserves protect fragments of former Garry Oak ecosystems. Most of these ...
... ecosystems. Although most (95%) of the pre-contact Garry Oak ecosystems have been lost to urban and suburban growth and agriculture, those that remain are treasured parts of the local landscape. Many local parks and ecological reserves protect fragments of former Garry Oak ecosystems. Most of these ...
COSEWIC assessment and status report on the Behr`s Hairstreak
... Analyses suggest that even the largest known population is unlikely to be sustainable in the long term and extant populations are fragmented, separated by areas of unsuitable habitat that are mostly beyond the species’ dispersal capacities. Habitat trend information shows Antelope-brush plant commun ...
... Analyses suggest that even the largest known population is unlikely to be sustainable in the long term and extant populations are fragmented, separated by areas of unsuitable habitat that are mostly beyond the species’ dispersal capacities. Habitat trend information shows Antelope-brush plant commun ...
global strategy for addressing the problem of invasive alien species
... effects on insect-eating birds and on plants that rely on insects for pollination or seed dispersal. Invasive species can transform the structure and species composition of ecosystems by repressing or excluding native species, either directly by out-competing them for resources or indirectly by chan ...
... effects on insect-eating birds and on plants that rely on insects for pollination or seed dispersal. Invasive species can transform the structure and species composition of ecosystems by repressing or excluding native species, either directly by out-competing them for resources or indirectly by chan ...
The role of selection within plant communities for ecosystem
... monocultures, indicating that selection for mixture or monoculture types had occurred in the biodiversity experiment. These findings are consistent with the hypothesis that selection for mixture types with increased division of labor via larger functional trait differences occurs in mixed-species co ...
... monocultures, indicating that selection for mixture or monoculture types had occurred in the biodiversity experiment. These findings are consistent with the hypothesis that selection for mixture types with increased division of labor via larger functional trait differences occurs in mixed-species co ...
potential mechanisms underlying the displacement of native red
... Previous work has suggested that interactions with bullfrogs may contribute to the population decline of native red-legged frogs (Rana aurora) in Oregon, USA. Interactions between these species appear to be strongly context dependent and potentially influenced by habitat modification. To gain a more ...
... Previous work has suggested that interactions with bullfrogs may contribute to the population decline of native red-legged frogs (Rana aurora) in Oregon, USA. Interactions between these species appear to be strongly context dependent and potentially influenced by habitat modification. To gain a more ...
supporting information
... Bellhouse T and Rosatte R (2005) Assessment of the potential for negative interaction between re-introduced elk (Cervus elaphus) and resident white-tailed deer (Odocoileus virginianus) in their wintering areas in Ontario, Canada. Mammalia ...
... Bellhouse T and Rosatte R (2005) Assessment of the potential for negative interaction between re-introduced elk (Cervus elaphus) and resident white-tailed deer (Odocoileus virginianus) in their wintering areas in Ontario, Canada. Mammalia ...
Shorebirds
... impacts on islands, intertidal areas and coastal foreshores through increased erosion and/or accretion, inundation of habitat, increased storm damage and vegetation loss (allowing weed species to invade). Other climate change pressures will affect island ecosystems and processes that shorebirds rely ...
... impacts on islands, intertidal areas and coastal foreshores through increased erosion and/or accretion, inundation of habitat, increased storm damage and vegetation loss (allowing weed species to invade). Other climate change pressures will affect island ecosystems and processes that shorebirds rely ...
Adaptations to Intraguild Competition
... communities, including cheetahs (Acinonyx jubatus) and scavengers in Serengeti National Park, American carnivores and striped skunks (Mephitis mephitis) to investigate behavioral, ecological and physiological adaptations to intraguild interactions. Cheetahs are frequently victims of kleptoparasitism ...
... communities, including cheetahs (Acinonyx jubatus) and scavengers in Serengeti National Park, American carnivores and striped skunks (Mephitis mephitis) to investigate behavioral, ecological and physiological adaptations to intraguild interactions. Cheetahs are frequently victims of kleptoparasitism ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.