Will the increasing atmospheric CO2 concentration affect the
... change, permitting new invasions? Will problems that are currently caused by invaders become worse, or disappear? To address any of these questions, we must not only understand how different species and ecosystems respond to rising [CO2], but how these responses interact to favor one species over an ...
... change, permitting new invasions? Will problems that are currently caused by invaders become worse, or disappear? To address any of these questions, we must not only understand how different species and ecosystems respond to rising [CO2], but how these responses interact to favor one species over an ...
Eds., K. Omori, X. Guo, N. Yoshie, N. Fujii, I.... © by TERRAPUB, 2011.
... precision with which δ 15N was estimated. The slower increase in observed δ 15N values with increasing trophic level compared to those predicted from model-derived trophic level may be due to several reasons. Firstly, the assumptions made in the comparison between observed and predicted δ15N values ...
... precision with which δ 15N was estimated. The slower increase in observed δ 15N values with increasing trophic level compared to those predicted from model-derived trophic level may be due to several reasons. Firstly, the assumptions made in the comparison between observed and predicted δ15N values ...
Granivory in a Desert Ecosystem: Experimental Evidence for Indirect Facilitation... Rodents Author(s): D. W. Davidson, R. S. Inouye, J. H. Brown
... of local desert habitats in southwestern North America. At our Sonoran Desert study site, both of the major taxa exhibited short-term increase in density when the other taxon was experimentally removed. Over the longer term, density compensation continued at a relatively constant level for rodents i ...
... of local desert habitats in southwestern North America. At our Sonoran Desert study site, both of the major taxa exhibited short-term increase in density when the other taxon was experimentally removed. Over the longer term, density compensation continued at a relatively constant level for rodents i ...
Do we have enough information to apply the
... Management of the deep-water fishery Large et al. (2003) found that most of the deep-water fisheries in the Northeast Atlantic were being harvested outside safe biological limits. An outline of the assessment and management of the deepwater fisheries since the establishment of the ICES Study Group on ...
... Management of the deep-water fishery Large et al. (2003) found that most of the deep-water fisheries in the Northeast Atlantic were being harvested outside safe biological limits. An outline of the assessment and management of the deepwater fisheries since the establishment of the ICES Study Group on ...
La biodiversité, c`est la vie - doc-developpement
... Living species ("Life") would have appeared on Earth, there are 3.6 billion years, all from originally single-celled species (bacteria or virus?). • There are between 5 and 30 million species on Earth. [11] But only 1.5 to 1.8 million plant and animal species have been described / listed scientifica ...
... Living species ("Life") would have appeared on Earth, there are 3.6 billion years, all from originally single-celled species (bacteria or virus?). • There are between 5 and 30 million species on Earth. [11] But only 1.5 to 1.8 million plant and animal species have been described / listed scientifica ...
Wetterer et al.: Dominance by Alien Ant in Biosphere 2 381
... 1990 to 1997 have revealed dramatic changes in faunal composition, including an almost complete replacement of the ant fauna by a single tramp ant species. In 1990-91, surveys in Biosphere 2 found no one ant species dominant. By 1993, populations of the crazy ant, Paratrechina longicornis (Latreille ...
... 1990 to 1997 have revealed dramatic changes in faunal composition, including an almost complete replacement of the ant fauna by a single tramp ant species. In 1990-91, surveys in Biosphere 2 found no one ant species dominant. By 1993, populations of the crazy ant, Paratrechina longicornis (Latreille ...
confederated tribes of the grand ronde community
... way” for American homesteaders, especially in the Willamette Valley which by then had become famous for its favorable climate and fertile soils. ...
... way” for American homesteaders, especially in the Willamette Valley which by then had become famous for its favorable climate and fertile soils. ...
Predators, parasitoids and pathogens: species richness, trophic
... Journal of Animal Ecology (2000) 69, 1±15 Introduction ...
... Journal of Animal Ecology (2000) 69, 1±15 Introduction ...
Functional over-redundancy and high functional vulnerability in
... in the Central Indo-Pacific whereas 180 FEs (out of 468) are represented by just one species (Fig. 3). FOR was calculated as the percentage of species that fill FEs above the mean level of functional redundancy (Materials and Methods). Surprisingly, the level of FOR remains in a narrow range (37−58% ...
... in the Central Indo-Pacific whereas 180 FEs (out of 468) are represented by just one species (Fig. 3). FOR was calculated as the percentage of species that fill FEs above the mean level of functional redundancy (Materials and Methods). Surprisingly, the level of FOR remains in a narrow range (37−58% ...
The relationships between net primary productivity, human
... (sampling grain was 4 km2) and correlated this with park size to determine if high productivity parks were mostly small. Correlations between human development and species richness and NPP do not identify the extent of spatial conflict between these variables (Diniz-Filho et al., 2006; O’Dea et al., ...
... (sampling grain was 4 km2) and correlated this with park size to determine if high productivity parks were mostly small. Correlations between human development and species richness and NPP do not identify the extent of spatial conflict between these variables (Diniz-Filho et al., 2006; O’Dea et al., ...
leaf litter ant assemblage in a natural fragmented dry forest
... Correlograms and periodograms of standardised residuals from the regression between these two factors showed the same highest peak(s) as the initial ones (as in Fig. 2C, D, G, H) although weak variations in periodogram values could be observed. Indeed, we observed no effect of litter weight on the p ...
... Correlograms and periodograms of standardised residuals from the regression between these two factors showed the same highest peak(s) as the initial ones (as in Fig. 2C, D, G, H) although weak variations in periodogram values could be observed. Indeed, we observed no effect of litter weight on the p ...
Know thy enemy: Behavioural response of a native mammal ( coexistence histories
... because they provide information on predation risk even when the predator is absent at the time of detection or is difficult to see (especially in dense undergrowth and physically complex habitats). Rattus norvegicus and Rattus rattus, for example, have been shown to display innate behavioural respo ...
... because they provide information on predation risk even when the predator is absent at the time of detection or is difficult to see (especially in dense undergrowth and physically complex habitats). Rattus norvegicus and Rattus rattus, for example, have been shown to display innate behavioural respo ...
COMPETITION AND SALT-MARSH PLANT ZONATION: STRESS
... and mixed plots as close together spatially as possible, it is likely that they were still subject to slightly different physical environments, and any quantitative comparisons between them would be confounded by factors associated with tidal height. Thus statistical comparisons were made only withi ...
... and mixed plots as close together spatially as possible, it is likely that they were still subject to slightly different physical environments, and any quantitative comparisons between them would be confounded by factors associated with tidal height. Thus statistical comparisons were made only withi ...
Marine Ecology Progress Series 341:303
... has led to concomitant reductions in hard substrate habitat in ecosystems dominated by sedimentary habitats (e.g. Rothschild et al. 1994, NRC 2004). Studies comparing invertebrate faunal abundance and diversity between restored and non-restored oyster reefs (e.g. Luckenbach et al. 2005, Rodney & Pay ...
... has led to concomitant reductions in hard substrate habitat in ecosystems dominated by sedimentary habitats (e.g. Rothschild et al. 1994, NRC 2004). Studies comparing invertebrate faunal abundance and diversity between restored and non-restored oyster reefs (e.g. Luckenbach et al. 2005, Rodney & Pay ...
a transcontinental risk assessment of barriers to animal
... reduction in dispersal across the border and (2) reduction in effective population sizes subsequent to loss of connectivity. It is important to recognize that these components of risk can operate both locally and range-wide depending on the size of a species range and its location relative to barrie ...
... reduction in dispersal across the border and (2) reduction in effective population sizes subsequent to loss of connectivity. It is important to recognize that these components of risk can operate both locally and range-wide depending on the size of a species range and its location relative to barrie ...
Updated status report for the Vancouver Island marmot
... it is likely that the population numbered 300-350 at this time, with most of it in manmade habitats. The population declined precipitously during the 1990s, with only ~70 individuals remaining in the wild by 1997. In 2007 there were about 50 wild-born marmots in the wild, plus a few dozen released m ...
... it is likely that the population numbered 300-350 at this time, with most of it in manmade habitats. The population declined precipitously during the 1990s, with only ~70 individuals remaining in the wild by 1997. In 2007 there were about 50 wild-born marmots in the wild, plus a few dozen released m ...
Effects of predator richness on prey suppression: a metaanalysis
... changing levels of biodiversity across nearly all of Earth’s ecosystems (Naeem et al. 2012). Predators are known to be disproportionately prone to anthropogenic extinction compared to other trophic groups (Terborgh et al. 2001), and the ecosystem-level consequences of losing entire predator guilds o ...
... changing levels of biodiversity across nearly all of Earth’s ecosystems (Naeem et al. 2012). Predators are known to be disproportionately prone to anthropogenic extinction compared to other trophic groups (Terborgh et al. 2001), and the ecosystem-level consequences of losing entire predator guilds o ...
atlantic wolffish - Conservation Law Foundation
... In the deep ocean waters off New England’s coast live one of our region’s most unique and threatened fish species: the Atlantic wolffish. Commercial fishing practices and modern fishing gear have decimated wolffish populations and destroyed the underwater habitat that the wolffish and other critical ...
... In the deep ocean waters off New England’s coast live one of our region’s most unique and threatened fish species: the Atlantic wolffish. Commercial fishing practices and modern fishing gear have decimated wolffish populations and destroyed the underwater habitat that the wolffish and other critical ...
Imperio et al 2012_Oikos
... between years (Ranta et al. 2008), however the Castelporziano Preserve was a relatively small area with a unique management direction, and we corrected harvest data for hunted area. Actual harvest rate (HR, number of animals killed/ number of animal counted) is available for a limited number of year ...
... between years (Ranta et al. 2008), however the Castelporziano Preserve was a relatively small area with a unique management direction, and we corrected harvest data for hunted area. Actual harvest rate (HR, number of animals killed/ number of animal counted) is available for a limited number of year ...
Arthropod pests of conservation significance in the Pacific: A
... laments the extirpation of the native fauna of Mt Tantalus just above Honolulu in just 10 years because of the introduction of this ant. ...
... laments the extirpation of the native fauna of Mt Tantalus just above Honolulu in just 10 years because of the introduction of this ant. ...
the eastern quoll - Australian Wildlife Society
... withstand the loss of a few juveniles, without any negative effects at the population level. However, with quoll populations currently at much lower densities, the loss of only a few juveniles is now enough to prevent populations from recovering. So it seems that a period of unsuitable weather reduc ...
... withstand the loss of a few juveniles, without any negative effects at the population level. However, with quoll populations currently at much lower densities, the loss of only a few juveniles is now enough to prevent populations from recovering. So it seems that a period of unsuitable weather reduc ...
Camden 2002 - Australasian Wildlife Management Society
... Rabbit haemorrhagic disease has persisted and reduced rabbit populations by over 90% in many areas since it was released in New Zealand in 1997. This large reduction in their populations has provided many benefits to farmers and perhaps to biodiversity managers. However, there have been consequences ...
... Rabbit haemorrhagic disease has persisted and reduced rabbit populations by over 90% in many areas since it was released in New Zealand in 1997. This large reduction in their populations has provided many benefits to farmers and perhaps to biodiversity managers. However, there have been consequences ...
Designing marine reserves for interacting species: Insights
... superior colonizer disperses farther than the superior competitor (Klausmeier, 1998), especially with high levels of habitat fragmentation (Neuhauser, 1998). The above models generally predict that the superior competitor can be the most abundant species before any habitat loss occurs, depending on ...
... superior colonizer disperses farther than the superior competitor (Klausmeier, 1998), especially with high levels of habitat fragmentation (Neuhauser, 1998). The above models generally predict that the superior competitor can be the most abundant species before any habitat loss occurs, depending on ...
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.