The role of past and present management in the rural landscape
... species-area relationship is a long known ecological theory which states that smaller areas of habitat support fewer species and vice versa (Arrhenius 1921), mediated by the effect of distance from a larger species source (MacArthur & Wilson 1967). After habitat loss, there often exists a time-lag b ...
... species-area relationship is a long known ecological theory which states that smaller areas of habitat support fewer species and vice versa (Arrhenius 1921), mediated by the effect of distance from a larger species source (MacArthur & Wilson 1967). After habitat loss, there often exists a time-lag b ...
Integrating Values and Ethics into Wildlife Policy and Management
... a broad array of perspectives that come into play when discussing wolf recovery and conservation. While very few people in any culture attempt to cause intentional harm or delight in doing so in their efforts to conserve and restore ecosystems and biodiversity, the other principles that call for tre ...
... a broad array of perspectives that come into play when discussing wolf recovery and conservation. While very few people in any culture attempt to cause intentional harm or delight in doing so in their efforts to conserve and restore ecosystems and biodiversity, the other principles that call for tre ...
Patterns in the structure of Asian and North American desert small
... locomotory groups. We evaluated nestedness of these communities using the Nestedness Temperature Calculator developed by Atmar & Patterson (1993, 1995), and we evaluated the role of competitive interactions in community assembly and applied a null model of local assembly under varying degrees of com ...
... locomotory groups. We evaluated nestedness of these communities using the Nestedness Temperature Calculator developed by Atmar & Patterson (1993, 1995), and we evaluated the role of competitive interactions in community assembly and applied a null model of local assembly under varying degrees of com ...
Elf Owl (Micrathene whitneyi)
... Wheel Camp, and Wiley’s Well. Cardiff (1980) reports that the Coon Hollow location is doubtful and the Wiley’s Well location is erroneous, and explains that both records were outside the breeding season, and that the Coon Hollow location is based on an auditory detection and Wiley's Well is based on ...
... Wheel Camp, and Wiley’s Well. Cardiff (1980) reports that the Coon Hollow location is doubtful and the Wiley’s Well location is erroneous, and explains that both records were outside the breeding season, and that the Coon Hollow location is based on an auditory detection and Wiley's Well is based on ...
roundtable session 2a: national legislation, eu directives and
... Pacifastacus leniusculus, and Orconectes limosus. The combination of these regulations means that Pacifastacus leniusculus and Orconectes limosus - the presence of which is acknowledged in the waterways and manmade lakes and ponds affected by fishing regulations, and which are considered liable to p ...
... Pacifastacus leniusculus, and Orconectes limosus. The combination of these regulations means that Pacifastacus leniusculus and Orconectes limosus - the presence of which is acknowledged in the waterways and manmade lakes and ponds affected by fishing regulations, and which are considered liable to p ...
Round 2 for Butterflies - Conserve Wildlife Foundation
... Only migratory populations should be considered for evaluation. Marine Fisheries may have data to contribute. Possible threatened for both blueback and alewife. May need to distinguish anadromous from introduced landlocked populations. Similar to the Blueback herring, numbers of this river herring h ...
... Only migratory populations should be considered for evaluation. Marine Fisheries may have data to contribute. Possible threatened for both blueback and alewife. May need to distinguish anadromous from introduced landlocked populations. Similar to the Blueback herring, numbers of this river herring h ...
Humans and Jaguars in Five Brazilian Biomes
... Palmeira & Barrela 2007). In general, it is acceptable to assume that many humans around the globe show admiration for large cats (Saunders 1998). They have been used as symbols since ancient cultures to today’s modern society. In Pre-Columbian America, the jaguar was the most prominent symbol of po ...
... Palmeira & Barrela 2007). In general, it is acceptable to assume that many humans around the globe show admiration for large cats (Saunders 1998). They have been used as symbols since ancient cultures to today’s modern society. In Pre-Columbian America, the jaguar was the most prominent symbol of po ...
this PDF file
... some historical information about species spatial distribution. These metrics are used to characterize the complex spatiotemporal dynamics of ecological mosaics or categorical maps. This characterization is based on analysis of space-time cubes of data with two spatial dimensions x, y and one time d ...
... some historical information about species spatial distribution. These metrics are used to characterize the complex spatiotemporal dynamics of ecological mosaics or categorical maps. This characterization is based on analysis of space-time cubes of data with two spatial dimensions x, y and one time d ...
COASTAL AND MARINE CONSERVATION: A NEW ZEALAND PERSPECTIVE
... the north, and a subantartic character in the south. The main islands also have an extensive and sometimes convoluted coastline of over 10,000 kilometres in length. These factors combined with a range of coastal land forms; marine topographic and physiographic features provide a wide range of enviro ...
... the north, and a subantartic character in the south. The main islands also have an extensive and sometimes convoluted coastline of over 10,000 kilometres in length. These factors combined with a range of coastal land forms; marine topographic and physiographic features provide a wide range of enviro ...
Predation Risk Influences Adaptive Morphological Variation in Fish
... is still in its infancy, and empirical examples are strongly needed (Abrams 2000). Examples of such indirect effects are apparent competition and keystone predation, but there are several other ecological indirect effects that potentially have evolutionary consequences (reviewed in Schoener 1993; Me ...
... is still in its infancy, and empirical examples are strongly needed (Abrams 2000). Examples of such indirect effects are apparent competition and keystone predation, but there are several other ecological indirect effects that potentially have evolutionary consequences (reviewed in Schoener 1993; Me ...
Restoration in the Rainshadow - SER
... dynamics. For instance, Donald Gayton (2001) explains the complexities associated with the recognition and incorporation of Indigenous environmental knowledge into new ecological restoration theory: Life was much simpler when we assumed a clear separation between humans and ecosystems. Now, not onl ...
... dynamics. For instance, Donald Gayton (2001) explains the complexities associated with the recognition and incorporation of Indigenous environmental knowledge into new ecological restoration theory: Life was much simpler when we assumed a clear separation between humans and ecosystems. Now, not onl ...
Spatial Extent and Dynamics of Dam Impacts on Tropical Island
... No comprehensive database of dams and artificial migration barriers exists for Puerto Rico, which prohibits the assessment of the limitations that these dams pose to stream fauna migration. The 2010 US National Inventory of Dams lists only 32 dams, all of which exceed 7.5 meters (m) in height, and ...
... No comprehensive database of dams and artificial migration barriers exists for Puerto Rico, which prohibits the assessment of the limitations that these dams pose to stream fauna migration. The 2010 US National Inventory of Dams lists only 32 dams, all of which exceed 7.5 meters (m) in height, and ...
Mutualism (biology) - Basic Knowledge 101
... 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 population. Without saturation, species’ densities ...
... 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 population. Without saturation, species’ densities ...
Terrestrial vertebrate fauna of the Greater Southern Sydney Region
... Birds Australia (2003) Integrating Biodiversity into Regional Planning - the Wimmera Catchment Management Authority Pilot Project. Scoping Report prepared for the Wimmera Catchment Management Authority. Birds Australia, Melbourne. Birds for Biodiversity (2003) Restless Flycatcher Myiagra inquieta. h ...
... Birds Australia (2003) Integrating Biodiversity into Regional Planning - the Wimmera Catchment Management Authority Pilot Project. Scoping Report prepared for the Wimmera Catchment Management Authority. Birds Australia, Melbourne. Birds for Biodiversity (2003) Restless Flycatcher Myiagra inquieta. h ...
The Future of Fish in Response to Large-Scale Change in P
... nez Strait (Suisun Bay), and the river confluence at Chipps Island (Delta), respectively. These narrows have allowed the three regions to have distinct identities, emphasized by human modifications to them. The Delta is perceived as a region where freshwater from the rivers tidally sloshes back and ...
... nez Strait (Suisun Bay), and the river confluence at Chipps Island (Delta), respectively. These narrows have allowed the three regions to have distinct identities, emphasized by human modifications to them. The Delta is perceived as a region where freshwater from the rivers tidally sloshes back and ...
Introduction - Beck-Shop
... winters. However, it is unclear what effect this will have on population dynamics: if climate change leads to increased animal growth and survival, the animal populations may enter winter at densities too high to be supported by winter resources. These climate changes may even result in lower access ...
... winters. However, it is unclear what effect this will have on population dynamics: if climate change leads to increased animal growth and survival, the animal populations may enter winter at densities too high to be supported by winter resources. These climate changes may even result in lower access ...
ppt - Oregon Department of Fish and Wildlife
... Current areas of known wolf activity include about 12% of the state’s potential wolf range Wolves are represented over a large geographic area of Oregon Nothing is preventing wolves from occupying additional portions of the West Zone Observed dispersal and movement patterns ...
... Current areas of known wolf activity include about 12% of the state’s potential wolf range Wolves are represented over a large geographic area of Oregon Nothing is preventing wolves from occupying additional portions of the West Zone Observed dispersal and movement patterns ...
Habitat coupling in lake ecosystems
... fishes. Pelagic habitats are inhabited predominantly by planktonic organisms. Energy flow in this habitat is largely through phytoplankton and bacterial pathways. Benthic habitats of lakes are associated with bottom substrata and can be substantially heterogeneous in both vertical and horizontal dim ...
... fishes. Pelagic habitats are inhabited predominantly by planktonic organisms. Energy flow in this habitat is largely through phytoplankton and bacterial pathways. Benthic habitats of lakes are associated with bottom substrata and can be substantially heterogeneous in both vertical and horizontal dim ...
LISTED SPECIES Sacramento Winter-Run Chinook Salmon
... Prior to construction of Shasta and Keswick dams in 1945 and 1950, respectively, winter-run chinook salmon were reported to spawn in the upper reaches of the Little Sacramento, McCloud, and lower Pit Rivers (1Moyle et aL 1989). Specific data relative to the historic run sizes of winter-run chinook p ...
... Prior to construction of Shasta and Keswick dams in 1945 and 1950, respectively, winter-run chinook salmon were reported to spawn in the upper reaches of the Little Sacramento, McCloud, and lower Pit Rivers (1Moyle et aL 1989). Specific data relative to the historic run sizes of winter-run chinook p ...
Savanna herbivore dynamics in a livestock
... more on its viability in non-protected areas than in national parks and reserves (Western, 1989; Hutton et al., 2005). This is because the ecological processes that ensure survival of large mammal populations in drylands, such as seasonal migration by elephants (Loxodonta africana), typically extend ...
... more on its viability in non-protected areas than in national parks and reserves (Western, 1989; Hutton et al., 2005). This is because the ecological processes that ensure survival of large mammal populations in drylands, such as seasonal migration by elephants (Loxodonta africana), typically extend ...
Mutualism or cooperation among competitors promotes coexistence
... competitors (e.g. Crawley, 1983; Hamback, 1998). Herbivore is well known to facilitate grassland (McNaughton, 1976). Herbivore is negative to grass by browsing grass, but positive to grass by facilitating nutrition cycle. Moderate grazing is the best. The grassland will be degenerated without herbiv ...
... competitors (e.g. Crawley, 1983; Hamback, 1998). Herbivore is well known to facilitate grassland (McNaughton, 1976). Herbivore is negative to grass by browsing grass, but positive to grass by facilitating nutrition cycle. Moderate grazing is the best. The grassland will be degenerated without herbiv ...
S. altissima
... bud (Fig. 1)(1). Fly galls are subject to predation from birds and other insects, including a beetle and two parasitic wasps (1). This interaction has been used to demonstrate balancing selection and to study trophic interactions (1,2,3). An open question remains whether host plant or habitat specia ...
... bud (Fig. 1)(1). Fly galls are subject to predation from birds and other insects, including a beetle and two parasitic wasps (1). This interaction has been used to demonstrate balancing selection and to study trophic interactions (1,2,3). An open question remains whether host plant or habitat specia ...
does local competition increase the coexistence of species in
... aggregations, when species eventually become disaggregated, local competition might actually speed their longterm extinction rate as they become surrounded by superior competitors. To test this idea, we performed a post hoc analysis examining the development of spatial patterns in relation to extinc ...
... aggregations, when species eventually become disaggregated, local competition might actually speed their longterm extinction rate as they become surrounded by superior competitors. To test this idea, we performed a post hoc analysis examining the development of spatial patterns in relation to extinc ...
Biodiversity and ecosystem functioning: the emergence of a synthetic ecological framework CHAPTER 1
... Two in¯uential early studies by Tilman and colleagues would focus biodiversity-functioning on plant diversity and plant production and this focus would dramatically increase the visibility of biodiversity and ecosystem functioning research. They would also catalyse emerging debates over the interpre ...
... Two in¯uential early studies by Tilman and colleagues would focus biodiversity-functioning on plant diversity and plant production and this focus would dramatically increase the visibility of biodiversity and ecosystem functioning research. They would also catalyse emerging debates over the interpre ...
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.