A review of factors limiting recovery of Pacific herring stocks in Canada
... 1983, 1986, and 1989 (Dorn et al., 1994). Because the acoustic surveys only covered the southern WCVI portion of BC, the information derived from these represent minimum biomass estimates. More recently, transect-specific integrated acoustic (using a different target strength) and trawl-survey estim ...
... 1983, 1986, and 1989 (Dorn et al., 1994). Because the acoustic surveys only covered the southern WCVI portion of BC, the information derived from these represent minimum biomass estimates. More recently, transect-specific integrated acoustic (using a different target strength) and trawl-survey estim ...
PWTB 200-1-91 Management Guidance for Gopher
... some effort, and results may be uncertain and hard to quantify. In theory, this is the best way to assure survival of hatchlings through to less vulnerable stages. This was one of the focus areas in the PVA study of Tuberville et al. (2009). Several ongoing studies concern both gopher tortoises (Har ...
... some effort, and results may be uncertain and hard to quantify. In theory, this is the best way to assure survival of hatchlings through to less vulnerable stages. This was one of the focus areas in the PVA study of Tuberville et al. (2009). Several ongoing studies concern both gopher tortoises (Har ...
Perth Biodiversity Project #1
... improve the existing frameworks for biodiversity conservation in local natural areas in the Perth Metropolitan Region. Local biodiversity areas consist of bushland and other natural and revegetated areas outside Bush Forever and the Department of Conservation and Land Management conservation estate. ...
... improve the existing frameworks for biodiversity conservation in local natural areas in the Perth Metropolitan Region. Local biodiversity areas consist of bushland and other natural and revegetated areas outside Bush Forever and the Department of Conservation and Land Management conservation estate. ...
Speciation in fig wasps
... actively emerge from their galls and collect pollen into thoracic pollen pockets using special combs of hairs on their legs. They then disperse and enter receptive figs where they use their forelegs to remove pollen from the pockets and place it onto the stigmas of female flowers (Galil & Meiri, 198 ...
... actively emerge from their galls and collect pollen into thoracic pollen pockets using special combs of hairs on their legs. They then disperse and enter receptive figs where they use their forelegs to remove pollen from the pockets and place it onto the stigmas of female flowers (Galil & Meiri, 198 ...
Glossy Black-Cockatoo Conservation Guidelines
... This document is subject to copyright pursuant to the Copyright Act 1968. Requests and inquiries regarding reproduction should be addressed to the email address: [email protected] Copies of this document are available at: www.glossyblack.org.au Please cite as: Glossy Black Conservancy (2010) Gloss ...
... This document is subject to copyright pursuant to the Copyright Act 1968. Requests and inquiries regarding reproduction should be addressed to the email address: [email protected] Copies of this document are available at: www.glossyblack.org.au Please cite as: Glossy Black Conservancy (2010) Gloss ...
The promise and the potential consequences of the globaltransport
... used to prepare and apply mycorrhizal fungal inoculum; and the technical sophistication of these approaches varies greatly. The simplest method is to apply soils that are known to contain propagules of desirable mycorrhizal fungi to areas that either lack these fungi or contain very low population d ...
... used to prepare and apply mycorrhizal fungal inoculum; and the technical sophistication of these approaches varies greatly. The simplest method is to apply soils that are known to contain propagules of desirable mycorrhizal fungi to areas that either lack these fungi or contain very low population d ...
Dung beetle communities in Madagascar
... one place but not in another, how ecologically apparently similar species use resources, what is the role of the regional species pool in affecting species composition in local communities, and so forth. Madagascar offers great opportunities to conduct such studies, since it is a very large island t ...
... one place but not in another, how ecologically apparently similar species use resources, what is the role of the regional species pool in affecting species composition in local communities, and so forth. Madagascar offers great opportunities to conduct such studies, since it is a very large island t ...
Western Harvest Mouse (Reithrodontomys megalotis megalotis)
... effects, with a particular focus on possible impacts upon non-target species or habitats. The results of the SEA are incorporated directly into the plan itself, but are also summarized below in this statement. The provincial management plan notes in section 8 that efforts to maintain Western Harvest ...
... effects, with a particular focus on possible impacts upon non-target species or habitats. The results of the SEA are incorporated directly into the plan itself, but are also summarized below in this statement. The provincial management plan notes in section 8 that efforts to maintain Western Harvest ...
spillover and species interactions across habitat edges between
... diversity while also increasing food production to meet the demands of a growing human population. Land-use change, primarily resulting from conversion to production land, is currently the leading cause of biodiversity loss. This occurs through habitat loss, fragmentation of remaining natural habita ...
... diversity while also increasing food production to meet the demands of a growing human population. Land-use change, primarily resulting from conversion to production land, is currently the leading cause of biodiversity loss. This occurs through habitat loss, fragmentation of remaining natural habita ...
Long-term ecological dynamics: reciprocal
... Sax et al. 2005). Invasions on islands are particularly suited for addressing ecosystem impacts of species (Courchamp et al. 2003). One such study involves offshore islands in New Zealand, several of which have been invaded by exotic rats and several of which have not. This system has been used to s ...
... Sax et al. 2005). Invasions on islands are particularly suited for addressing ecosystem impacts of species (Courchamp et al. 2003). One such study involves offshore islands in New Zealand, several of which have been invaded by exotic rats and several of which have not. This system has been used to s ...
Freshwater Mussels of Michgian - Michigan Natural Features Inventory
... have caused declines in native unionid mussels. These factors have also impacted the fish species unionid mussels rely on as hosts. Without the appropriate host species present in sufficient densities, the unionid life cycle cannot be completed. Barriers to fish migration, such as dams and degraded ...
... have caused declines in native unionid mussels. These factors have also impacted the fish species unionid mussels rely on as hosts. Without the appropriate host species present in sufficient densities, the unionid life cycle cannot be completed. Barriers to fish migration, such as dams and degraded ...
SILICA ACCUMULATION IN GRASSES IN REPONSE TO A LARGE
... Silicon (Si) is the second most abundant element in the earth´s crust and in its form of silica (SiO2) represents an important inorganic constituent in plants (Epstein 1999; Müller 2003). Although all plants contains silicon, the concentration of this element varies greatly among plant species (0,1- ...
... Silicon (Si) is the second most abundant element in the earth´s crust and in its form of silica (SiO2) represents an important inorganic constituent in plants (Epstein 1999; Müller 2003). Although all plants contains silicon, the concentration of this element varies greatly among plant species (0,1- ...
Alberta Ords Kangaroo Rat Recovery Plan 2013 -2018
... Ord’s kangaroo rat is a member of the Heteromyidae family. Kangaroo rats are nocturnal rodents highly adapted for survival in arid environments. There are over 20 species of kangaroo rat in North America, but Ord’s kangaroo rat is the only species found in Canada. Ord’s kangaroo rat (herein, kangaro ...
... Ord’s kangaroo rat is a member of the Heteromyidae family. Kangaroo rats are nocturnal rodents highly adapted for survival in arid environments. There are over 20 species of kangaroo rat in North America, but Ord’s kangaroo rat is the only species found in Canada. Ord’s kangaroo rat (herein, kangaro ...
Linking internal and external bacterial community control gives
... model as the ratio of a combination of internal and external control mechanisms. Total virus abundance is controlled by external factors such as limiting resource concentration (which under M-limitation is controlled by ciliate abundance) and internal factors such as COR against viral lysis, which g ...
... model as the ratio of a combination of internal and external control mechanisms. Total virus abundance is controlled by external factors such as limiting resource concentration (which under M-limitation is controlled by ciliate abundance) and internal factors such as COR against viral lysis, which g ...
Proceedings - World Lagomorph Society
... Dear Participants in the 5th World Lagomorph Conference, The World Lagomorph Society (WLS) was established in 2006, after the 2nd World Lagomorph Conference (WLC) was held in Portugal (2004). This society was inspired by the need to improve cooperation and collaboration among lagomorph researchers, ...
... Dear Participants in the 5th World Lagomorph Conference, The World Lagomorph Society (WLS) was established in 2006, after the 2nd World Lagomorph Conference (WLC) was held in Portugal (2004). This society was inspired by the need to improve cooperation and collaboration among lagomorph researchers, ...
Insect responses to invasive plant species
... negative implications. These plants can change the environment by there appearance, and therefore some insect species are not occuring here anymore. One of these neophytes is Solidago canadensis, which spreads with high speed through Europe. It occurs in disturbed areas, like abandonded agricultural ...
... negative implications. These plants can change the environment by there appearance, and therefore some insect species are not occuring here anymore. One of these neophytes is Solidago canadensis, which spreads with high speed through Europe. It occurs in disturbed areas, like abandonded agricultural ...
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... I thank Professor George Bredenkamp from the Department of Botany, U niversity of Pretoria, for his expertise in assisting in the vegetation surveys, the identification of plant species and his advise on fire management planning. His knowledge was instrumental in perceiving the structure of the vege ...
... I thank Professor George Bredenkamp from the Department of Botany, U niversity of Pretoria, for his expertise in assisting in the vegetation surveys, the identification of plant species and his advise on fire management planning. His knowledge was instrumental in perceiving the structure of the vege ...
Wolverine (Gulo gulo), Eastern Population
... Unknown. Although the persistence of individuals of the Eastern population is uncertain in Quebec and Labrador, a rescue effect 3 from dispersing individuals of the Western population in northwestern Ontario could possibly contribute to the natural reestablishment of the species. If the recovery of ...
... Unknown. Although the persistence of individuals of the Eastern population is uncertain in Quebec and Labrador, a rescue effect 3 from dispersing individuals of the Western population in northwestern Ontario could possibly contribute to the natural reestablishment of the species. If the recovery of ...
setting conservation and research priorities for larger african
... and hunting dog as competing predators and occasionally as prey. Now, as a swelling human tide engulfs ever more natural habitat, carnivores are killed for various reasons, and demands for resources have become insatiable, the geographic range of most carnivores, large and small, is shrinking and po ...
... and hunting dog as competing predators and occasionally as prey. Now, as a swelling human tide engulfs ever more natural habitat, carnivores are killed for various reasons, and demands for resources have become insatiable, the geographic range of most carnivores, large and small, is shrinking and po ...
taraxacum officinale pollen depresses seed set of montane
... different species present on a stigma (Kearns & Inouye 1993). Taraxacum pollen was not found on most of the species sampled, but was found at low amounts on the stigmas of three species, from which we selected our two focal species. We also carried out pollinator observations in areas where Taraxacu ...
... different species present on a stigma (Kearns & Inouye 1993). Taraxacum pollen was not found on most of the species sampled, but was found at low amounts on the stigmas of three species, from which we selected our two focal species. We also carried out pollinator observations in areas where Taraxacu ...
Predation of wildlife by domestic cats Felis catus in Great Britain
... wildlife had co-evolved with cats for hundreds of generations and that any species that were susceptible to predation would be ‘long extinct’. It has also been argued that in many situations cats may limit populations of other predators, such as rats Rattus spp., that could have a more pronounced ef ...
... wildlife had co-evolved with cats for hundreds of generations and that any species that were susceptible to predation would be ‘long extinct’. It has also been argued that in many situations cats may limit populations of other predators, such as rats Rattus spp., that could have a more pronounced ef ...
Status of the Plains Spadefoot in Alberta
... populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species that may be formally designated as endangered or threatened under the Alberta Wildlife A ...
... populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species that may be formally designated as endangered or threatened under the Alberta Wildlife A ...
Status of the Plains Spadefoot - Alberta Conservation Association
... populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species that may be formally designated as endangered or threatened under the Alberta Wildlife A ...
... populations of species and their habitats in the province. The reports are also designed to provide current information which will assist the Alberta Endangered Species Conservation Committee to identify species that may be formally designated as endangered or threatened under the Alberta Wildlife A ...
Trait-mediated assembly processes predict successional changes in
... community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita population growth rate) differences and stabilizing niche diff ...
... community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita population growth rate) differences and stabilizing niche diff ...
science advice from the risk assessment of the invasive bloody red
... Canada, focusing on two geographic areas: the Great Lakes and Ontario inland lakes. H. anomala presents a moderate to high risk to the Great Lakes. Persistence over multiple years at some sites suggests it can survive, is established and has already spread within the Great Lakes to lakes Michigan, E ...
... Canada, focusing on two geographic areas: the Great Lakes and Ontario inland lakes. H. anomala presents a moderate to high risk to the Great Lakes. Persistence over multiple years at some sites suggests it can survive, is established and has already spread within the Great Lakes to lakes Michigan, E ...
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.