Nest Predation and Brood Parasitism in Fragmented Ecosystems
... Nest monitoring and analysis We monitored a total of 2165 nests on the Snake River from 1992 through 1994, and a total of 2901 on the Bitterroot River from 1995 through 1998. All nests were monitored every 2–4 days to determine activity, fate, and parasitism status (presence of a cowbird egg). The s ...
... Nest monitoring and analysis We monitored a total of 2165 nests on the Snake River from 1992 through 1994, and a total of 2901 on the Bitterroot River from 1995 through 1998. All nests were monitored every 2–4 days to determine activity, fate, and parasitism status (presence of a cowbird egg). The s ...
USING ECOLOGICAL THEORY TO GUIDE THE IMPLEMENTATION OF AUGMENTATIVE RESTORATION by
... Invasive organisms are now considered the second worst threat to native biological biodiversity, behind habitat loss and fragmentation. Successful control of invasive plants can have unexpected impacts on native plants and wildland systems. Therefore, it is important for managers of invasive species ...
... Invasive organisms are now considered the second worst threat to native biological biodiversity, behind habitat loss and fragmentation. Successful control of invasive plants can have unexpected impacts on native plants and wildland systems. Therefore, it is important for managers of invasive species ...
Contemporary Criticisms of the Received
... anthology that, ancillary to the American-character rationale, the wilderness idea is liable to the allegation of racism, not to be confused with ethnocentrism. Aldo Leopold (1998, emphasis added), early in his career a warm supporter of the American-character rationale for wilderness preservation, ...
... anthology that, ancillary to the American-character rationale, the wilderness idea is liable to the allegation of racism, not to be confused with ethnocentrism. Aldo Leopold (1998, emphasis added), early in his career a warm supporter of the American-character rationale for wilderness preservation, ...
Habitat Requirements for Coastal Coho Salmon Populations
... Chum salmon have the most extensive distribution of all the salmon species. In British Columbia, the group of stocks designated as northern chum, spawn in coastal systems ranging from the Nass River in the north to the mainland streams opposite the northern end of Vancouver Island in the south. Chum ...
... Chum salmon have the most extensive distribution of all the salmon species. In British Columbia, the group of stocks designated as northern chum, spawn in coastal systems ranging from the Nass River in the north to the mainland streams opposite the northern end of Vancouver Island in the south. Chum ...
Copyright © 2011 by the author(s). Published here under license... Silvergieter, M. P., and D. B. Lank. 2011. Marbled murrelets...
... Limited accessibility could introduce some bias relative to patterns over all sites, but any such bias may be of less concern for this study, which focuses within patches, than it would be for studies comparing choices among patches at the landscape scale. Finally, the accessible habitat to which th ...
... Limited accessibility could introduce some bias relative to patterns over all sites, but any such bias may be of less concern for this study, which focuses within patches, than it would be for studies comparing choices among patches at the landscape scale. Finally, the accessible habitat to which th ...
The impacts of wind power on terrestrial mammals
... À>ÊEÊiÝ>`iÀÊ£n]Ê}`ÊÓääx]Ê-Ì>ÜV ÊÓään®°Ê1iÊyÞ}Ê species such as birds and bats, the land-bound animals are obviously not killed by collisions with the turbines, but they could be affected by noise from the turbines, by disturbance during construction, by traffic and other human ...
... À>ÊEÊiÝ>`iÀÊ£n]Ê}`ÊÓääx]Ê-Ì>ÜV ÊÓään®°Ê1iÊyÞ}Ê species such as birds and bats, the land-bound animals are obviously not killed by collisions with the turbines, but they could be affected by noise from the turbines, by disturbance during construction, by traffic and other human ...
Managing wet grassland landscapes: impacts on predators and
... of habitat destruction when they are within a foodweb including high levels of omnivory (Melián & Bascompte 2002). Food web structure can be altered by habitat fragmentation, with habitat loss leading to contraction of foodwebs around a central core of highly-connected species (Valladares, Cagnolo, ...
... of habitat destruction when they are within a foodweb including high levels of omnivory (Melián & Bascompte 2002). Food web structure can be altered by habitat fragmentation, with habitat loss leading to contraction of foodwebs around a central core of highly-connected species (Valladares, Cagnolo, ...
Ben-Gurion University of the Negev
... Israel, three have expanded their range into the desert from Mediterranean habitats, probably due to anthropogenic developments such as the addition of bodies of open water and lights. The abundance and activity of bats in the desert is affected by the distribution of bodies of open water, which are ...
... Israel, three have expanded their range into the desert from Mediterranean habitats, probably due to anthropogenic developments such as the addition of bodies of open water and lights. The abundance and activity of bats in the desert is affected by the distribution of bodies of open water, which are ...
Representations of the ecological niche
... conditions, in ecology called categories (from the ‘n-category theory’), to construct a hypervolume in multidimensional space (see §2.3). In ontology terminology, the ‘category’ is a combination of a quality/feature/property and its value(s), henceforth called condition to avoid misinterpretation. E ...
... conditions, in ecology called categories (from the ‘n-category theory’), to construct a hypervolume in multidimensional space (see §2.3). In ontology terminology, the ‘category’ is a combination of a quality/feature/property and its value(s), henceforth called condition to avoid misinterpretation. E ...
Oregon Attachment 3 Markup of Mainstem Amendments
... The long-term vision of the Council’s 2000 Fish and Wildlife Program is of a Columbia River Basin ecosystem that sustains abundant, productive and diverse communities of fish and wildlife, mitigating across the basin for the adverse effects to fish and wildlife caused by the development and operatio ...
... The long-term vision of the Council’s 2000 Fish and Wildlife Program is of a Columbia River Basin ecosystem that sustains abundant, productive and diverse communities of fish and wildlife, mitigating across the basin for the adverse effects to fish and wildlife caused by the development and operatio ...
Beetles
... It is possible and useful to model dispersal flights of beetles as a simple gravity model. The gravity model with changes in carrying capacity due to the presence of predators is capable of generating results that are similar to those of experimental studies. There can be global steady-states in ...
... It is possible and useful to model dispersal flights of beetles as a simple gravity model. The gravity model with changes in carrying capacity due to the presence of predators is capable of generating results that are similar to those of experimental studies. There can be global steady-states in ...
the full report here!
... of photosynthesis is achieved by algae, while vascular plants and eubacteria contribute to a smaller extent (Mann 1973). Primary producers directly supply energy to herbivores, making them the pillar of fo ...
... of photosynthesis is achieved by algae, while vascular plants and eubacteria contribute to a smaller extent (Mann 1973). Primary producers directly supply energy to herbivores, making them the pillar of fo ...
Wolf-Cougar Co-occurrence in the Central Canadian Rocky Mountains
... carnivores in North America. Top carnivores can influence the dynamics of an ecosystem, including prey behavior, abundance, and distribution, and management practices (Ripple et al. 2014). In recent decades, wolves have been reintroduced into regions of their historical North American range, as well ...
... carnivores in North America. Top carnivores can influence the dynamics of an ecosystem, including prey behavior, abundance, and distribution, and management practices (Ripple et al. 2014). In recent decades, wolves have been reintroduced into regions of their historical North American range, as well ...
Download technical report 180
... number of threatened, endangered, and extinct species, but also the state with the highest proportion of endemic flora and fauna (Ziegler 2002). Non-native mammals – primarily rats, cats, mongoose, goats, sheep, and pigs – have had devastating impacts on listed and at-risk species and are major fact ...
... number of threatened, endangered, and extinct species, but also the state with the highest proportion of endemic flora and fauna (Ziegler 2002). Non-native mammals – primarily rats, cats, mongoose, goats, sheep, and pigs – have had devastating impacts on listed and at-risk species and are major fact ...
Climate Change and Alpine Vegetation Shifts on Mountaintop
... from the low alpine (1161 m a.s.l.) to the high alpine vegetation zone (1845 m a.s.l.). In 2015, vegetation data indicated that the species richness of vascular plants decreased significantly with increasing elevation. In addition, compared to the previous surveys in 2001 and 2008, no significant ch ...
... from the low alpine (1161 m a.s.l.) to the high alpine vegetation zone (1845 m a.s.l.). In 2015, vegetation data indicated that the species richness of vascular plants decreased significantly with increasing elevation. In addition, compared to the previous surveys in 2001 and 2008, no significant ch ...
Seamounts Report Vol 2
... first one, which took place in 2009 aboard the R/V Dr Fridtjof Nansen as part of the EAF-Nansen project, studied the pelagic fauna (in the water column) associated with seamounts, while the second expedition, aboard the RRS James Cook (funded by the Natural Environment Research Council, NERC) in 201 ...
... first one, which took place in 2009 aboard the R/V Dr Fridtjof Nansen as part of the EAF-Nansen project, studied the pelagic fauna (in the water column) associated with seamounts, while the second expedition, aboard the RRS James Cook (funded by the Natural Environment Research Council, NERC) in 201 ...
The Great Western Woodlands
... scattered trees, is intermixed with thicker eucalypt mallee, low shrublands, and grasslands. The exceptional plant diversity within these vegetation types, with over 3000 species being recorded to date, is one of the primary reasons for the region’s conservation significance and why the entire regio ...
... scattered trees, is intermixed with thicker eucalypt mallee, low shrublands, and grasslands. The exceptional plant diversity within these vegetation types, with over 3000 species being recorded to date, is one of the primary reasons for the region’s conservation significance and why the entire regio ...
Asian shore crab, Hemigrapsus sanguineus Overview Overview
... Once hatched larvae are planktonic for up to one month, and growth and maturation are rapid, with juveniles reaching a mean carapace width of 20 mm within two years. The reproductive period may be longer than that of native crabs, and this combined with such high fecundity may contribute to the spec ...
... Once hatched larvae are planktonic for up to one month, and growth and maturation are rapid, with juveniles reaching a mean carapace width of 20 mm within two years. The reproductive period may be longer than that of native crabs, and this combined with such high fecundity may contribute to the spec ...
neinvasives.com
... Aquatic Invasive Species Regulations Following the approved legislation in 2012 (LB391), it is illegal to possess, import, export, purchase, sell, or transport aquatic invasive species in Nebraska. When encountering a check station, please be prepared to present a Clean, Drain, Dry boat to expedite ...
... Aquatic Invasive Species Regulations Following the approved legislation in 2012 (LB391), it is illegal to possess, import, export, purchase, sell, or transport aquatic invasive species in Nebraska. When encountering a check station, please be prepared to present a Clean, Drain, Dry boat to expedite ...
Harvestmen and Pseudoscorpions - Digital Commons @ Michigan
... sampling of those organisms that live on the surface. The harvestmen can move fairly rapidly, so those living in peatlands on the surface are unlikely ever to be sampled by removing cores. Differences in day/night habitat may also hinder sampling efforts, particularly for those that might migrate be ...
... sampling of those organisms that live on the surface. The harvestmen can move fairly rapidly, so those living in peatlands on the surface are unlikely ever to be sampled by removing cores. Differences in day/night habitat may also hinder sampling efforts, particularly for those that might migrate be ...
Review on hard coral recruitment (Cnidaria: Scleractinia) in Colombia
... carbonate skeleton), becomes a polyp, and the juvenile survives for a period of time (10). According to ecologists, the importance of this process is that it determines the renewal and maintenance of the structure of existing and future coral populations and reef communities at a local level; wherea ...
... carbonate skeleton), becomes a polyp, and the juvenile survives for a period of time (10). According to ecologists, the importance of this process is that it determines the renewal and maintenance of the structure of existing and future coral populations and reef communities at a local level; wherea ...
Full text in pdf format
... versus 6.1%). Interestingly, infection was associated with some environmental and co-infection risk factors. Individual tadpoles possessed 0 to 5 species of parasites in varying intensities. Apiosoma sp. was the most prevalent (66%) and widespread. Tadpoles infected with B. dendrobatidis had a lower ...
... versus 6.1%). Interestingly, infection was associated with some environmental and co-infection risk factors. Individual tadpoles possessed 0 to 5 species of parasites in varying intensities. Apiosoma sp. was the most prevalent (66%) and widespread. Tadpoles infected with B. dendrobatidis had a lower ...
These_4_niveau 2 et 3 - Chaire CRSNG/Hydro
... relation between biodiversity and ecosystem functioning (BEF) began. After more than 20 years of BEF research, general consensus leans toward increasing productivity, resource capture and decomposition with diversity. The two main mechanisms proposed to underlie this positive relationship are niche ...
... relation between biodiversity and ecosystem functioning (BEF) began. After more than 20 years of BEF research, general consensus leans toward increasing productivity, resource capture and decomposition with diversity. The two main mechanisms proposed to underlie this positive relationship are niche ...
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.