Species Accounts - Contra Costa County
... within its known range in California includes 22 data records from 1975 to 1999. Of these records, none of the 7 documented within the past 10 years were of sufficient precision to be accurately located within the survey areas. Three of these 7 records are located within the ECCC HCP/NCCP inventory ...
... within its known range in California includes 22 data records from 1975 to 1999. Of these records, none of the 7 documented within the past 10 years were of sufficient precision to be accurately located within the survey areas. Three of these 7 records are located within the ECCC HCP/NCCP inventory ...
Full Program
... world-leading researcher, a legendary mentor, and someone who makes a decisive difference to Canada. She has been one of the most eloquent and effective voices anywhere for using strong scientific evidence in protecting species at risk. She helped found the game-changing Liber Ero Fellowship Program ...
... world-leading researcher, a legendary mentor, and someone who makes a decisive difference to Canada. She has been one of the most eloquent and effective voices anywhere for using strong scientific evidence in protecting species at risk. She helped found the game-changing Liber Ero Fellowship Program ...
stc5_12_ssap_btg_0
... The Black-tailed Godwit has a widespread but disjunct distribution in the Western Palearctic. Two subspecies occur in this area; islandica which breeds mainly in Iceland and limosa with a main breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have se ...
... The Black-tailed Godwit has a widespread but disjunct distribution in the Western Palearctic. Two subspecies occur in this area; islandica which breeds mainly in Iceland and limosa with a main breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have se ...
The role of earthworms for assessment of sustainability and as
... or locations in a landscape. Sampling methods always represent a compromise between effort and labor (and funds) required and the desire for accurate quantitative and qualitative measurements and statistics. Earthworm sampling should preferably be carried out during cool and wet seasons; sampling of ...
... or locations in a landscape. Sampling methods always represent a compromise between effort and labor (and funds) required and the desire for accurate quantitative and qualitative measurements and statistics. Earthworm sampling should preferably be carried out during cool and wet seasons; sampling of ...
LATITUDINAL GRADIENTS OF BIODIVERSITY: Pattern, Process
... in the amount of land they contain because most coastal quadrats will not be full of land (Rosenzweig 1995). Consequently it is difficult to disentangle areal effects from other geographic, historical, or ecological phenomena associated with land-ocean interfaces. Finally, almost all studies of lati ...
... in the amount of land they contain because most coastal quadrats will not be full of land (Rosenzweig 1995). Consequently it is difficult to disentangle areal effects from other geographic, historical, or ecological phenomena associated with land-ocean interfaces. Finally, almost all studies of lati ...
Dung beetle communities in Madagascar
... beetles (especially dung and carrion) are ephemeral small patches with dissimilar densities and spatial configuration in different ecosystems. For dung beetles individual droppings and carcasses are concentrations of high–quality resource, for which competition is often severe (Hanski and Cambefort ...
... beetles (especially dung and carrion) are ephemeral small patches with dissimilar densities and spatial configuration in different ecosystems. For dung beetles individual droppings and carcasses are concentrations of high–quality resource, for which competition is often severe (Hanski and Cambefort ...
The meaning of functional trait composition of food webs for
... functional trait structure and diversity for ecosystem functioning. Traits are involved both directly and indirectly in the processes of shaping ecological communities and driving their dynamics (figure 1). First, traits have a direct effect on ecosystem functioning through the traditional mechanism ...
... functional trait structure and diversity for ecosystem functioning. Traits are involved both directly and indirectly in the processes of shaping ecological communities and driving their dynamics (figure 1). First, traits have a direct effect on ecosystem functioning through the traditional mechanism ...
The meaning of functional trait composition of food webs for
... functional trait structure and diversity for ecosystem functioning. Traits are involved both directly and indirectly in the processes of shaping ecological communities and driving their dynamics (figure 1). First, traits have a direct effect on ecosystem functioning through the traditional mechanism ...
... functional trait structure and diversity for ecosystem functioning. Traits are involved both directly and indirectly in the processes of shaping ecological communities and driving their dynamics (figure 1). First, traits have a direct effect on ecosystem functioning through the traditional mechanism ...
Short-term changes of protozoan control on autotrophic
... Abstract. In May 1994, we investigated the short-term development of the planktonic community in the epi- and metalimnion of an oligo-mesotrophic lake (Piburger See, Tyrol), focusing on trophic links between protists and picoplankton, but also including phyto- and zooplankton. Uptake experiments wit ...
... Abstract. In May 1994, we investigated the short-term development of the planktonic community in the epi- and metalimnion of an oligo-mesotrophic lake (Piburger See, Tyrol), focusing on trophic links between protists and picoplankton, but also including phyto- and zooplankton. Uptake experiments wit ...
Southeast United States Regional Waterbird Conservation Plan
... estimated in 1870, with some species nearly extirpated. With the birds protected through effective law enforcement, surveys initiated by R. P. Allen (National Audubon Society) documented rebounding wading bird populations by 1935. Although there is little doubt that long-legged wading birds were "su ...
... estimated in 1870, with some species nearly extirpated. With the birds protected through effective law enforcement, surveys initiated by R. P. Allen (National Audubon Society) documented rebounding wading bird populations by 1935. Although there is little doubt that long-legged wading birds were "su ...
Pen Llŷn a`r Sarnau /Lleyn Peninsula and the Sarnau European
... The Habitats Directive requires member states to take a variety of measures aimed at the conservation of biodiversity. These measures include the designation of Special Areas of Conservation (SACs) on land and sea. Each SAC is to be designated for particular habitats and species, and they are to be ...
... The Habitats Directive requires member states to take a variety of measures aimed at the conservation of biodiversity. These measures include the designation of Special Areas of Conservation (SACs) on land and sea. Each SAC is to be designated for particular habitats and species, and they are to be ...
Trophic studies on constructed "restored" oyster reefs
... become significant geological and biological features of the Bay and were also major intertidal navigation hazards. Continuing harvest pressure since Colonial times has resulted in the transformation and degradation of the oyster reefs to subtidal “footprints” of former reefs that maintain drastical ...
... become significant geological and biological features of the Bay and were also major intertidal navigation hazards. Continuing harvest pressure since Colonial times has resulted in the transformation and degradation of the oyster reefs to subtidal “footprints” of former reefs that maintain drastical ...
These_4_niveau 2 et 3 - Chaire CRSNG/Hydro
... beyond. After identification of open research questions within the BEF paradigm, the second chapter proposes an experimental design addressing those gaps. The core of this experimental design is the variation of tree communities along a gradient of continuous functional diversity (FD) to specificall ...
... beyond. After identification of open research questions within the BEF paradigm, the second chapter proposes an experimental design addressing those gaps. The core of this experimental design is the variation of tree communities along a gradient of continuous functional diversity (FD) to specificall ...
Linking modern coexistence theory and contemporary niche theory
... As ρ goes to 1, the potential for two species to coexist is contingent on increasingly smaller fitness differences between them. Thus we can define an equalizing mechanism as any process that reduces the average fitness difference between species; and a stabilizing mechanism as any process that red ...
... As ρ goes to 1, the potential for two species to coexist is contingent on increasingly smaller fitness differences between them. Thus we can define an equalizing mechanism as any process that reduces the average fitness difference between species; and a stabilizing mechanism as any process that red ...
Natural and human-induced dynamics in plant–animal mutualistic
... plants, pollinators and seed dispersers follow similar ecological principles and are structured in the same way, they are particularly well suited for comparative studies of plant–animal mutualistic interactions (Bascompte & Jordano 2007). Regarding the mutual benefits of plant–animal interactions o ...
... plants, pollinators and seed dispersers follow similar ecological principles and are structured in the same way, they are particularly well suited for comparative studies of plant–animal mutualistic interactions (Bascompte & Jordano 2007). Regarding the mutual benefits of plant–animal interactions o ...
Mapping the distribution of dholes
... the factors that control this species’ geographic distribution in Thailand. Finally, we believe that our approach could be translated to better explore the status and distribution of dhole throughout its geographic range. Several factors may influence patterns of dhole distribution, including vegeta ...
... the factors that control this species’ geographic distribution in Thailand. Finally, we believe that our approach could be translated to better explore the status and distribution of dhole throughout its geographic range. Several factors may influence patterns of dhole distribution, including vegeta ...
Ecology of Thrips
... model merely showed relationships between weather parameters and population estimates. Smith (1961) showed that their multiple regression model was not appropriate for the conclusions they reached. He argued that predation, parasitism, and other density-dependent mortalities not identified in the Da ...
... model merely showed relationships between weather parameters and population estimates. Smith (1961) showed that their multiple regression model was not appropriate for the conclusions they reached. He argued that predation, parasitism, and other density-dependent mortalities not identified in the Da ...
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biolief 2011 - conference program and abstract book[1]
... © Grupo de Investigación y Educación en Temas Ambientales (GrIETA) This publication can be reproduced in whole or in part and in any form for educational or non-profit purposes without permission from the copyright holder, provided acknowledgement of the source is made. No commercial use of this pub ...
... © Grupo de Investigación y Educación en Temas Ambientales (GrIETA) This publication can be reproduced in whole or in part and in any form for educational or non-profit purposes without permission from the copyright holder, provided acknowledgement of the source is made. No commercial use of this pub ...
indirect effects of large herbivores on snakes in an african savanna
... understand relatively little about how these declines influence other species. Previous studies have shown that the removal of large herbivorous mammals from large-scale, replicated experimental plots results in a dramatic increase in the density of small mammals, an increase that has been attributed ...
... understand relatively little about how these declines influence other species. Previous studies have shown that the removal of large herbivorous mammals from large-scale, replicated experimental plots results in a dramatic increase in the density of small mammals, an increase that has been attributed ...
Invasive species shifts ontogenetic resource partitioning and
... surrounded on two sides by salt marsh and by a major highway and agricultural fields on the other sides, leaving the ponds relatively isolated from secondary invasion by bullfrogs. All of the ponds within the site are man-made, but have been present for at least 30 years. Bullfrogs were introduced to ...
... surrounded on two sides by salt marsh and by a major highway and agricultural fields on the other sides, leaving the ponds relatively isolated from secondary invasion by bullfrogs. All of the ponds within the site are man-made, but have been present for at least 30 years. Bullfrogs were introduced to ...
mangrove ecology
... rates, topography and tidal energy (Lugo 1980). Coastal geomorphology is important in determining physical and chemical conditions for mangrove development and may explain regional differences in zonation patterns. Geomorphology as an explanation of intertidal zonation patterns is unsatisfactory, ho ...
... rates, topography and tidal energy (Lugo 1980). Coastal geomorphology is important in determining physical and chemical conditions for mangrove development and may explain regional differences in zonation patterns. Geomorphology as an explanation of intertidal zonation patterns is unsatisfactory, ho ...
Biodiversity and the functioning of seagrass ecosystems
... Living organisms vary at every level of the phylogenetic hierarchy from individual genes through higher taxa, and ecological assemblages vary in composition from guilds or functional groups, through communities, to landscapes. This variation is of interest in understanding ecosystem functioning inso ...
... Living organisms vary at every level of the phylogenetic hierarchy from individual genes through higher taxa, and ecological assemblages vary in composition from guilds or functional groups, through communities, to landscapes. This variation is of interest in understanding ecosystem functioning inso ...
COMPETITION AND MORPHOLOGICAL SIMILARITY: THE CASE ... THE "SNAKE-LIKE" LIZARDS ANGUIS FRAGILIS (ANGUIDAE) AND
... kilometer of radius from the woodlot barycentre. Moreover, in each woodlot we selected five sampling transects well representative of the whole environmental characteristics. Each transect was 25 rn long and 4 rn width, thus accounting for 1 00 m2 surface. In every transect we measured the following ...
... kilometer of radius from the woodlot barycentre. Moreover, in each woodlot we selected five sampling transects well representative of the whole environmental characteristics. Each transect was 25 rn long and 4 rn width, thus accounting for 1 00 m2 surface. In every transect we measured the following ...
Lesser Prairie-Chicken Conservation Initiative Lesser Prairie
... There are few sights in the world of wildlife more spectacular than the spring mating displays of the diminutive lesser prairie-chicken (Tympanuchus pallidicinctus). Probably as a result of its captivating displays, this bird has become an iconic representative for wildlife species that depend on th ...
... There are few sights in the world of wildlife more spectacular than the spring mating displays of the diminutive lesser prairie-chicken (Tympanuchus pallidicinctus). Probably as a result of its captivating displays, this bird has become an iconic representative for wildlife species that depend on th ...
Free sample of
... TOP: 5-3 How Do Communities and Ecosystems Respond to Changing Environmental Conditions? 19. Scientists have changed their view about a stable type of climax community as the end product of succession and are now suggesting we can not predict the course of succession. ANS: T PTS: 1 DIF: Easy TOP: 5- ...
... TOP: 5-3 How Do Communities and Ecosystems Respond to Changing Environmental Conditions? 19. Scientists have changed their view about a stable type of climax community as the end product of succession and are now suggesting we can not predict the course of succession. ANS: T PTS: 1 DIF: Easy TOP: 5- ...