a comparison of maximum sprint speed among the five
... of its latitudinal range compared to the other two species (Conant and Collins 1998). Variation in sprint speed and its effects on spatial distribution of sympatric congeners has been well documented among Caribbean Anolis (Irschick and Losos 1998). However, many of these species exhibit an increase ...
... of its latitudinal range compared to the other two species (Conant and Collins 1998). Variation in sprint speed and its effects on spatial distribution of sympatric congeners has been well documented among Caribbean Anolis (Irschick and Losos 1998). However, many of these species exhibit an increase ...
The recent declines of farmland bird populations in Britain: an
... by other organizations, such as the Game Conservancy Trust, the Centre for Ecology and Hydrology and the Royal Society for the Protection of Birds. Additional (usually shorter-term) information is held by the many individuals or university groups who have conducted detailed studies of individual spe ...
... by other organizations, such as the Game Conservancy Trust, the Centre for Ecology and Hydrology and the Royal Society for the Protection of Birds. Additional (usually shorter-term) information is held by the many individuals or university groups who have conducted detailed studies of individual spe ...
- WIT Repository
... effect of variation in relative abundance can be isolated by exploring the diversity effect ...
... effect of variation in relative abundance can be isolated by exploring the diversity effect ...
Mutualism (biology) - Basic Knowledge 101
... In 1989, David Hamilton Wright modified the Lotka– Volterra equations by adding a new term, βM/K, to represent a mutualistic relationship.[20] Wright also considered the concept of saturation, which means that with higher densities, there are decreasing benefits of further increases of the mutualist p ...
... In 1989, David Hamilton Wright modified the Lotka– Volterra equations by adding a new term, βM/K, to represent a mutualistic relationship.[20] Wright also considered the concept of saturation, which means that with higher densities, there are decreasing benefits of further increases of the mutualist p ...
Model code of practice for the humane control of feral cats 2012
... mammals and ground-nesting birds in the arid zone, and seriously affected bilby, mala and numbat populations. In some instances, feral cats have directly threatened the success of recovery programs for endangered species. Feral cats carry infectious diseases such as toxoplasmosis and sarcosporidiosi ...
... mammals and ground-nesting birds in the arid zone, and seriously affected bilby, mala and numbat populations. In some instances, feral cats have directly threatened the success of recovery programs for endangered species. Feral cats carry infectious diseases such as toxoplasmosis and sarcosporidiosi ...
Range Contractions of North American
... transformation, and satellite nighttime lights (Sanderson et al. 2002). (b) Biomes of North America (Olson et al. 2001). (c) Digital elevation model of North America (LPDAAC 2002). We chose the human footprint for assessing human influence on species range changes, because this map has several advan ...
... transformation, and satellite nighttime lights (Sanderson et al. 2002). (b) Biomes of North America (Olson et al. 2001). (c) Digital elevation model of North America (LPDAAC 2002). We chose the human footprint for assessing human influence on species range changes, because this map has several advan ...
A global assessment of the conservation status of the American
... The American Oystercatcher Haematopus palliatus is the most widely distributed of the four oystercatcher species in the Western Hemisphere. Its range covers almost the entire Atlantic Coast from northeastern United States to southern Argentina; on the Pacific Coast it is found from northern Mexico t ...
... The American Oystercatcher Haematopus palliatus is the most widely distributed of the four oystercatcher species in the Western Hemisphere. Its range covers almost the entire Atlantic Coast from northeastern United States to southern Argentina; on the Pacific Coast it is found from northern Mexico t ...
Using Network Analysis to infer impact of climate change on
... (Thomson 2005), and time implies long-term climatic stability which has been absent ...
... (Thomson 2005), and time implies long-term climatic stability which has been absent ...
Global networks for invasion science: benefits, challenges and
... locations and regions (Kueffer et al. 2013). Transdisciplinary refers to the generation of new knowledge and solutions to real-world problems through shared, standardized and iterative methodologies drawn from two or more disciplines (adapted from Wickson et al. 2006). The current distribution of mo ...
... locations and regions (Kueffer et al. 2013). Transdisciplinary refers to the generation of new knowledge and solutions to real-world problems through shared, standardized and iterative methodologies drawn from two or more disciplines (adapted from Wickson et al. 2006). The current distribution of mo ...
Plasticity and trait-mediated indirect interactions among plants
... Oswald J. Schmitz and Robert D. Holt. Published by Cambridge University Press. © Cambridge University Press 2012. ...
... Oswald J. Schmitz and Robert D. Holt. Published by Cambridge University Press. © Cambridge University Press 2012. ...
Recruitment Processes and Species Coexistence
... Japan. Data were collected in a 2±48-ha plot over six growing seasons (1989–1994). We used path analysis to analyse the relationships between the recruitment rates of saplings and the stand structural attributes such as mother tree abundance, stand crowdedness, stand stratification, Sasa bamboo dens ...
... Japan. Data were collected in a 2±48-ha plot over six growing seasons (1989–1994). We used path analysis to analyse the relationships between the recruitment rates of saplings and the stand structural attributes such as mother tree abundance, stand crowdedness, stand stratification, Sasa bamboo dens ...
From regional to global patterns in vertebrate scavenger
... and Europe; Tella, 2001; Oaks et al., 2004; Markandya et al., 2008). In this context, it is urgent to understand better the role of severely threatened species such as most obligate scavengers (i.e. vultures; Ogada et al., 2012a) and apex predators (Ripple et al., 2014). Hunting was the first human ...
... and Europe; Tella, 2001; Oaks et al., 2004; Markandya et al., 2008). In this context, it is urgent to understand better the role of severely threatened species such as most obligate scavengers (i.e. vultures; Ogada et al., 2012a) and apex predators (Ripple et al., 2014). Hunting was the first human ...
Towards a trait-based quantification of species
... (plant cover, population biomass: see e.g. Shipley et al. 2006; McGill 2006), which is perhaps a more operational population-level performance currency in plants because of the difficulty to track the demography of plants (especially for herbaceous species). One advantage of the trait-based approach ...
... (plant cover, population biomass: see e.g. Shipley et al. 2006; McGill 2006), which is perhaps a more operational population-level performance currency in plants because of the difficulty to track the demography of plants (especially for herbaceous species). One advantage of the trait-based approach ...
- New Zealand Ecological Society
... and Canadian geese Branta canadensis) are present in large numbers and are seasonally hunted or culled (Nugent 1992). However, introduced species may be substituting functionally for the extinct or now-rare native species such as Finsch´s duck (Chenonetta finschi) and the South Island goose (Cnemior ...
... and Canadian geese Branta canadensis) are present in large numbers and are seasonally hunted or culled (Nugent 1992). However, introduced species may be substituting functionally for the extinct or now-rare native species such as Finsch´s duck (Chenonetta finschi) and the South Island goose (Cnemior ...
Knowing Your Warblers
... As has often been pointed out...birds may emigrate or disperse from the most suitable areas where reproduction is successful into marginal habitats. Consider such a species which will be called A. Let B be a species that lives only in the area that is marginal for species A. Now, even if in an unlim ...
... As has often been pointed out...birds may emigrate or disperse from the most suitable areas where reproduction is successful into marginal habitats. Consider such a species which will be called A. Let B be a species that lives only in the area that is marginal for species A. Now, even if in an unlim ...
Preliminary study of habitat preferences of red brocket deer
... as a food source. The red brocket is known to be a highly frugivorous species (Gayot et al. 2004; Weber 2008). It has also been found that coffee agroecosystems in the Sierra Madre Oriental of Mexico allow the persistence of an elevated diversity of mammal species, and these systems have been consid ...
... as a food source. The red brocket is known to be a highly frugivorous species (Gayot et al. 2004; Weber 2008). It has also been found that coffee agroecosystems in the Sierra Madre Oriental of Mexico allow the persistence of an elevated diversity of mammal species, and these systems have been consid ...
Ecology Basics - The Science Spot
... There are also many different species of fish and sharks. So a food chain cannot end with a shark; it must end with a distinct species of shark. A food chain does not contain the general category of "fish," it will contain specific species of fish. In ecosystems, there are many food chains. Since fe ...
... There are also many different species of fish and sharks. So a food chain cannot end with a shark; it must end with a distinct species of shark. A food chain does not contain the general category of "fish," it will contain specific species of fish. In ecosystems, there are many food chains. Since fe ...
Effects of Competition, Predation, and Dispersal on Species
... Gaston 2000). However, a number of studies have raised issues with the interpretation of these patterns, suggesting that explanations other than strong dispersal limitation and weak local interactions may be invoked to account for linear relationships between local and regional diversity (Caswell an ...
... Gaston 2000). However, a number of studies have raised issues with the interpretation of these patterns, suggesting that explanations other than strong dispersal limitation and weak local interactions may be invoked to account for linear relationships between local and regional diversity (Caswell an ...
IMMATURE STAGES OF AcTINOTE zIkANI
... or microhabitat conditions, and the butterfly probably requires particular microclimatic conditions near the host plants where the immature stages can complete their development. The distribution and abundance of natural enemies of A. zikani could also be a potential cause for the restricted distrib ...
... or microhabitat conditions, and the butterfly probably requires particular microclimatic conditions near the host plants where the immature stages can complete their development. The distribution and abundance of natural enemies of A. zikani could also be a potential cause for the restricted distrib ...
Energy, Density, and Constraints to Species Richness: Ant
... was inspected piece by piece for nests (ant colonies of !100 workers often nest in hollow twigs, acorns, and between leaves; Wilson 1959; Herbers 1986; Byrne 1994; Kaspari 1996). Litter was inspected over a white sample tray to catch and to locate stray ants. Litter nests were bagged for later proce ...
... was inspected piece by piece for nests (ant colonies of !100 workers often nest in hollow twigs, acorns, and between leaves; Wilson 1959; Herbers 1986; Byrne 1994; Kaspari 1996). Litter was inspected over a white sample tray to catch and to locate stray ants. Litter nests were bagged for later proce ...
9-12 - Wave Foundation
... suggest a larger diversity than the single species that exists in Africa today. Specific distinctions in bone comparisons lead scientists to conclude that three separate species of penguin colonized Africa three separate times, with the prior two species eventually becoming extinct, with reason to b ...
... suggest a larger diversity than the single species that exists in Africa today. Specific distinctions in bone comparisons lead scientists to conclude that three separate species of penguin colonized Africa three separate times, with the prior two species eventually becoming extinct, with reason to b ...
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... previously developed methods. There are no significant differences in either carbon or nitrogen ratios between sexes, sampling year, or year of analysis. Seasonal differences in d13C reached a low level of significance but do not affect general patterns. Variation within species was similar to that ...
... previously developed methods. There are no significant differences in either carbon or nitrogen ratios between sexes, sampling year, or year of analysis. Seasonal differences in d13C reached a low level of significance but do not affect general patterns. Variation within species was similar to that ...
a critique of the
... Neutral models explore community dynamics when species are ecologically equivalent to one another. Ecologically equivalent species cannot coexist (Chesson and Huntly 1997), and species should randomly go extinct as their relative abundances vary stochastically until only one species remains (Hubbell ...
... Neutral models explore community dynamics when species are ecologically equivalent to one another. Ecologically equivalent species cannot coexist (Chesson and Huntly 1997), and species should randomly go extinct as their relative abundances vary stochastically until only one species remains (Hubbell ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.