REPTILE RAP NL 8 Dec 2007 final
... Photographs were sent to Bombay Natural History Society for identification. The specimen has been added to the collection at the Bombay Natural History Society (B.N.H.S. 3354 and 3355). In the rainy season of 2006, on July 30 and 31, we found another two live Elliot’s Shield Tail Snakes. We studied ...
... Photographs were sent to Bombay Natural History Society for identification. The specimen has been added to the collection at the Bombay Natural History Society (B.N.H.S. 3354 and 3355). In the rainy season of 2006, on July 30 and 31, we found another two live Elliot’s Shield Tail Snakes. We studied ...
Chapter 41
... characteristics to be more divergent in sympatric populations (geographically overlapping) of two species than in allopatric (geographically separate) populations of the same two species An example is variation in beak size between populations of two species of Galápagos finches ...
... characteristics to be more divergent in sympatric populations (geographically overlapping) of two species than in allopatric (geographically separate) populations of the same two species An example is variation in beak size between populations of two species of Galápagos finches ...
COSEWIC Status report on the Red
... by the author, the distribution map presented in Green and Campbell (1984), and locations mentioned in Green (1978). The specimens collected at Kingcome and Powell River are housed at the National Museum in Ottawa, and should be reidentified to verify that R. aurora occurs north of Vancouver on the ...
... by the author, the distribution map presented in Green and Campbell (1984), and locations mentioned in Green (1978). The specimens collected at Kingcome and Powell River are housed at the National Museum in Ottawa, and should be reidentified to verify that R. aurora occurs north of Vancouver on the ...
insight review articles - Montana State University
... number of ways in which ranges can be distributed changes systematically between the bounds. Thus, whereas species with latitudinal midpoints midway between the bounds can extend a little or a long way before those bounds are encountered, those with midpoints close to the bounds can extend only a li ...
... number of ways in which ranges can be distributed changes systematically between the bounds. Thus, whereas species with latitudinal midpoints midway between the bounds can extend a little or a long way before those bounds are encountered, those with midpoints close to the bounds can extend only a li ...
The Functions of Biological Diversity in an Age of Extinction REVIEW
... among its species (phylogenetic diversity), greater genotypic diversity within species (genetic diversity), greater distance among species in multivariate functional trait space (functional diversity), higher species turnover across a unit of space (spatial diversity), greater numbers of links per s ...
... among its species (phylogenetic diversity), greater genotypic diversity within species (genetic diversity), greater distance among species in multivariate functional trait space (functional diversity), higher species turnover across a unit of space (spatial diversity), greater numbers of links per s ...
Chapter 2. Interactions between Organisms and Environment
... does a sublethal dose have on the reproductive capacity of the individual or of a whole population? on its ability to survive predation? What effects do herbicides and other organic poisons have on the survival and production of nontarget species? Do they affect the survival of the individual? suppr ...
... does a sublethal dose have on the reproductive capacity of the individual or of a whole population? on its ability to survive predation? What effects do herbicides and other organic poisons have on the survival and production of nontarget species? Do they affect the survival of the individual? suppr ...
- ePrints Soton
... The heritability of any variation arising depends on its reliability of transmission not only via the sampling procedure, but also after being subject to another “generation” of ecosystem development. According to Swenson and Wilson (Swenson et al., 2000b; Swenson et al., 2000a), ecosystems are comp ...
... The heritability of any variation arising depends on its reliability of transmission not only via the sampling procedure, but also after being subject to another “generation” of ecosystem development. According to Swenson and Wilson (Swenson et al., 2000b; Swenson et al., 2000a), ecosystems are comp ...
Variations in species and functional plant diversity along climatic
... might, for example, decrease species diversity but also imply a wide range of possible adaptations to cope with water stress (Stubbs and Wilson 2004, Mason et al. 2005) and thus maintain the coexistence of species with a diversity of traits. Further, the heterogeneity in space (e.g. resource patches ...
... might, for example, decrease species diversity but also imply a wide range of possible adaptations to cope with water stress (Stubbs and Wilson 2004, Mason et al. 2005) and thus maintain the coexistence of species with a diversity of traits. Further, the heterogeneity in space (e.g. resource patches ...
Mwf_annual_report_2007-2008 - the Mauritian Wildlife Foundation
... forest on Mauritius remains. In Rodrigues today there is no native forest remaining, only secondary areas of mostly exotic species. All the endemic giant tortoise species on the islands were exploited and hunted to extinction and many other animal species, including the Dodo and the Solitaire, were ...
... forest on Mauritius remains. In Rodrigues today there is no native forest remaining, only secondary areas of mostly exotic species. All the endemic giant tortoise species on the islands were exploited and hunted to extinction and many other animal species, including the Dodo and the Solitaire, were ...
species interactions - University of Toronto Mississauga
... By reviewing studies that have investigated competition in nature, we can see how frequently it occurs and in what particular circumstances it is most important. In one review by Joseph Connell, competition was found in 55 percent of 215 species surveyed, demonstrating that it is indeed frequent in ...
... By reviewing studies that have investigated competition in nature, we can see how frequently it occurs and in what particular circumstances it is most important. In one review by Joseph Connell, competition was found in 55 percent of 215 species surveyed, demonstrating that it is indeed frequent in ...
Federal Concerns Regarding Hatchery Steelhead Spawning in the
... of their life in the ocean. • U.S. Fish & Wildlife Service - species that spend most of their life on land or in freshwater. ...
... of their life in the ocean. • U.S. Fish & Wildlife Service - species that spend most of their life on land or in freshwater. ...
The spatial distribution of African savannah herbivores
... consumer guild due to their large body size, relative insensitivity to predation and strong top-down effects on vegetation that may have either positive or negative effects on smaller-bodied browsers. Large-bodied predators (lions) likely have the strongest negative effects on grazers and browsers a ...
... consumer guild due to their large body size, relative insensitivity to predation and strong top-down effects on vegetation that may have either positive or negative effects on smaller-bodied browsers. Large-bodied predators (lions) likely have the strongest negative effects on grazers and browsers a ...
2.3 Importance of Biodiversity to Saudi Arabia
... mangrove swamps have been very successful. Diversity of large animals and birds is also modest. Species, such as Arabian oryx, Nubian ibex, Dugong and Arabian leopard, for example, are restricted in distribution whereas many migratory birds cross the Arabian Peninsular. Many of the larger mammals we ...
... mangrove swamps have been very successful. Diversity of large animals and birds is also modest. Species, such as Arabian oryx, Nubian ibex, Dugong and Arabian leopard, for example, are restricted in distribution whereas many migratory birds cross the Arabian Peninsular. Many of the larger mammals we ...
Vesper Sparrow affinis subspecies Pooecetes gramineus affini
... The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) was created in 1977 as a result of a recommendation at the Federal-Provincial Wildlife Conference held in 1976. It arose from the need for a single, official, scientifically sound, national listing of wildlife species at risk. In ...
... The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) was created in 1977 as a result of a recommendation at the Federal-Provincial Wildlife Conference held in 1976. It arose from the need for a single, official, scientifically sound, national listing of wildlife species at risk. In ...
Queensland Brigalow Belt Reptile Recovery Plan
... ‘Endangered’ species, the Retro slider, is considered to be extinct by experts as it has not been recorded since its last sighting in 1960 in Clermont. All 16 species are listed under Qld’s Nature Conservation Act 1992 (NCA). Four are ‘Endangered’, seven are ‘Vulnerable’ and five are ’Rare’ (see Ta ...
... ‘Endangered’ species, the Retro slider, is considered to be extinct by experts as it has not been recorded since its last sighting in 1960 in Clermont. All 16 species are listed under Qld’s Nature Conservation Act 1992 (NCA). Four are ‘Endangered’, seven are ‘Vulnerable’ and five are ’Rare’ (see Ta ...
A Field Manual for Seed Collectors SEED COLLECTING FOR THE
... It is critical to the value of the seed collections that the species is accurately identified, thus collectors are requested to enter comprehensive identification notes on the field data form. If a local expert is not available to identify species, plant identification guides should be used instead. ...
... It is critical to the value of the seed collections that the species is accurately identified, thus collectors are requested to enter comprehensive identification notes on the field data form. If a local expert is not available to identify species, plant identification guides should be used instead. ...
Dispersal modes and spatial patterns of tree species in a tropical
... level [19]. Tree species with limited seed dispersal would be expected to have more aggregated spatial patterns than those that have mechanisms for long-distance seed dispersal. Earlier studies in Malaysia and the Neotropics have found that the spatial patterns of tree species were related to their ...
... level [19]. Tree species with limited seed dispersal would be expected to have more aggregated spatial patterns than those that have mechanisms for long-distance seed dispersal. Earlier studies in Malaysia and the Neotropics have found that the spatial patterns of tree species were related to their ...
society for range management policy statements, position statements
... Rangelands, a broad category of land comprising more than 40% of the earth’s land area, are characterized by native plant communities, which are often associated with grazing, and are managed by ecological, rather than agronomic methods. The term “range” can also include forestlands that have grazin ...
... Rangelands, a broad category of land comprising more than 40% of the earth’s land area, are characterized by native plant communities, which are often associated with grazing, and are managed by ecological, rather than agronomic methods. The term “range” can also include forestlands that have grazin ...
Ecological and Evolutionary Drivers of Geographic Variation in
... in the ocean. Elucidating the processes by which diversity arises has been a central occupation of biologists since Darwin and Wallace. A complete understanding of diversity also entails investigating why some species survive and others die out, which involves ecology. Thus, research into lineage di ...
... in the ocean. Elucidating the processes by which diversity arises has been a central occupation of biologists since Darwin and Wallace. A complete understanding of diversity also entails investigating why some species survive and others die out, which involves ecology. Thus, research into lineage di ...
Evenness drives consistent diversity effects in intensive grassland
... of such patterns centre around hypotheses that more diverse communities better utilize available resources due to their greater occupation of niche space, and that they have a greater probability of containing positive inter-specific interactions (Trenbath 1974; Harper 1977; Vandermeer 1989; Hector ...
... of such patterns centre around hypotheses that more diverse communities better utilize available resources due to their greater occupation of niche space, and that they have a greater probability of containing positive inter-specific interactions (Trenbath 1974; Harper 1977; Vandermeer 1989; Hector ...
African Herp News 58, December 2012
... reinstatement of Phrynomerus as the only genus in an exclusively African subfamily Phrynomerinae. The family is represented in Ethiopia by Phrynomerus somalicus and the endemic genus and species Balebreviceps hillmani. The 13 species of Ptychadena include at least six endemic species on the Ethiopia ...
... reinstatement of Phrynomerus as the only genus in an exclusively African subfamily Phrynomerinae. The family is represented in Ethiopia by Phrynomerus somalicus and the endemic genus and species Balebreviceps hillmani. The 13 species of Ptychadena include at least six endemic species on the Ethiopia ...
Impact: Toward a Framework for Understanding the Ecological
... results of complex multivariate methods adequately captured by simple composite metrics such as species richness? How well are impacts on native populations correlated with impacts on ecosystem functions? Are there useful bioindicators for invasion impacts? To what extent does the impact of an invas ...
... results of complex multivariate methods adequately captured by simple composite metrics such as species richness? How well are impacts on native populations correlated with impacts on ecosystem functions? Are there useful bioindicators for invasion impacts? To what extent does the impact of an invas ...
Impact: toward a framework for understanding
... results of complex multivariate methods adequately captured by simple composite metrics such as species richness? How well are impacts on native populations correlated with impacts on ecosystem functions? Are there useful bioindicators for invasion impacts? To what extent does the impact of an invas ...
... results of complex multivariate methods adequately captured by simple composite metrics such as species richness? How well are impacts on native populations correlated with impacts on ecosystem functions? Are there useful bioindicators for invasion impacts? To what extent does the impact of an invas ...
enhancing biodiversity hotspots along western
... traditionally followed the best hunting trails and permanent watering sites, so it is little wonder that indigenous knowledge was sought to survey for pastoral settlement and movement of livestock when the stock routes were established. This pragmatic approach resulted in the retention of some of ou ...
... traditionally followed the best hunting trails and permanent watering sites, so it is little wonder that indigenous knowledge was sought to survey for pastoral settlement and movement of livestock when the stock routes were established. This pragmatic approach resulted in the retention of some of ou ...
A patch-dynamic framework for food web metacommunities
... valuable tool for studying how space can affect the properties and assembly of competitive communities. However, the concept has not been as extensively applied to the study of food webs or trophically structured communities. Here, we demonstrate how to develop a modelling framework that permits foo ...
... valuable tool for studying how space can affect the properties and assembly of competitive communities. However, the concept has not been as extensively applied to the study of food webs or trophically structured communities. Here, we demonstrate how to develop a modelling framework that permits foo ...
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.