setting conservation and research priorities for larger african
... public support, something not adequate for the carnivores. As the authors emphasize, even science has greatly lagged in that only a few species, mostly large and easily observed ones, have had long-term studies at certain sites. The status of species throughout their African range remains obscure. F ...
... public support, something not adequate for the carnivores. As the authors emphasize, even science has greatly lagged in that only a few species, mostly large and easily observed ones, have had long-term studies at certain sites. The status of species throughout their African range remains obscure. F ...
Effects of intra- and interspecific competition on
... Springer Science+Business Media New York 2015 ...
... Springer Science+Business Media New York 2015 ...
Ecological Restoration Treatments Increase Butterfly Richness and
... shrubs, and trees. As adults, butterflies are nectar generalists; both life stages represent a broad range of ecological niches within an ecosystem. Because of the broad life history traits found in butterflies, this taxon has been recommended a good ecological indicator of herbaceous communities (S ...
... shrubs, and trees. As adults, butterflies are nectar generalists; both life stages represent a broad range of ecological niches within an ecosystem. Because of the broad life history traits found in butterflies, this taxon has been recommended a good ecological indicator of herbaceous communities (S ...
Invasive weeds in rangelands: Species, impacts, and management
... of meat, milk, wool, and hides, and poisoning livestock. In addition, infestations can reduce recreational land values and the spiny species can cause human health problems. Noxious weeds cause more economic loss in rangeland than all other pests combined (Quimby et al. 1991). Bovey (1987) estimated ...
... of meat, milk, wool, and hides, and poisoning livestock. In addition, infestations can reduce recreational land values and the spiny species can cause human health problems. Noxious weeds cause more economic loss in rangeland than all other pests combined (Quimby et al. 1991). Bovey (1987) estimated ...
Long-billed Curlew (Numenius americanus)
... than a hundred years (Smith 1996, DeSmet 2003). It was considered a rare migrant by the 1920s in Aweme (MB) where it was a regular breeder thirty years before and is considered extirpated ...
... than a hundred years (Smith 1996, DeSmet 2003). It was considered a rare migrant by the 1920s in Aweme (MB) where it was a regular breeder thirty years before and is considered extirpated ...
Risk analysis report of non-native organisms in Belgium
... The risk analysis follows a process defined by three stages : (1) the initiation process which involves identifying the organism and its introduction pathways that should be considered for risk analysis in relation to Belgium, (2) the risk assessment stage which includes the categorization of emergi ...
... The risk analysis follows a process defined by three stages : (1) the initiation process which involves identifying the organism and its introduction pathways that should be considered for risk analysis in relation to Belgium, (2) the risk assessment stage which includes the categorization of emergi ...
How can we detect introduced mammalian predators in non
... hedgehogs (Erinaceus europaeus), and WaxTags® for brushtail possums (Trichosurus vulpecula). Using our data to simulate a reduction in survey effort, we found that detection rates would be significantly reduced only when devices were at very low densities. We show also that 3–71 nights of monitoring ...
... hedgehogs (Erinaceus europaeus), and WaxTags® for brushtail possums (Trichosurus vulpecula). Using our data to simulate a reduction in survey effort, we found that detection rates would be significantly reduced only when devices were at very low densities. We show also that 3–71 nights of monitoring ...
Climate Change and Alpine Vegetation Shifts on Mountaintop
... 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 change in vascular plant species richness was found, whereas a significant decrease in lichen speci ...
... 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 change in vascular plant species richness was found, whereas a significant decrease in lichen speci ...
A synthesis of subdisciplines: predator–prey interactions, and
... has been called the ÔsamplingÕ, ÔselectionÕ or ÔselectionprobabilityÕ effect in the BEF literature (Huston 1997; Tilman 1999; Fridley 2001; Loreau et al. 2001), and the Ôlottery modelÕ in biological control (Denoth et al. 2002). To illustrate how the mechanism works, consider a scenario in which the ...
... has been called the ÔsamplingÕ, ÔselectionÕ or ÔselectionprobabilityÕ effect in the BEF literature (Huston 1997; Tilman 1999; Fridley 2001; Loreau et al. 2001), and the Ôlottery modelÕ in biological control (Denoth et al. 2002). To illustrate how the mechanism works, consider a scenario in which the ...
Density-dependent migration in an Amphiura filiformis (Amphiuridae
... ABSTRACT: The hypothesis that the semi-mobile brittle star Amphiura filiformis may have densitydependent migratory behaviour and that their dispersion may be dependent on food availability was examined. Sediment with intact fauna dominated by A. filiformis (-2250 ind. m-2) was brought to the laborat ...
... ABSTRACT: The hypothesis that the semi-mobile brittle star Amphiura filiformis may have densitydependent migratory behaviour and that their dispersion may be dependent on food availability was examined. Sediment with intact fauna dominated by A. filiformis (-2250 ind. m-2) was brought to the laborat ...
PDF
... eDNA results to those from a traditional sampling technique (Lacoursière-Roussel et al., 2015; de Vargas et al., 2015; Port et al., 2016). These studies have tended to show a correlation between results obtained through traditional sampling methods and those using environmental DNA (but see Adams et ...
... eDNA results to those from a traditional sampling technique (Lacoursière-Roussel et al., 2015; de Vargas et al., 2015; Port et al., 2016). These studies have tended to show a correlation between results obtained through traditional sampling methods and those using environmental DNA (but see Adams et ...
TAKE A LOOK at the Grayling Complaint filed by WWP ()
... Arctic grayling on the candidate species list, giving it a Category 1 listing priority number. Thereafter, however, FWS failed to move forward with the listing process, despite the urgency of the threats facing the grayling as documented by FWS itself. ...
... Arctic grayling on the candidate species list, giving it a Category 1 listing priority number. Thereafter, however, FWS failed to move forward with the listing process, despite the urgency of the threats facing the grayling as documented by FWS itself. ...
Land-use history - India Environment Portal
... (2012) for analysis of community data to evaluate our questions. Multilevel models are desirable for our data set and question for several reasons. First, MLM is similar to other common multivariate techniques (e.g. redundancy analysis or canonical correspondence analysis) but allows for generalized ...
... (2012) for analysis of community data to evaluate our questions. Multilevel models are desirable for our data set and question for several reasons. First, MLM is similar to other common multivariate techniques (e.g. redundancy analysis or canonical correspondence analysis) but allows for generalized ...
Population-Wide Changes in Pinyon-Juniper Woodlands Caused by
... range of pinyon and juniper species has been influenced by grazing and fire suppression – i.e., in many cases we do not know if the forests are encroaching on land previously occupied by sagebrush and grasslands for a long period or if they are re-occupying ground periodically occupied by forest. Th ...
... range of pinyon and juniper species has been influenced by grazing and fire suppression – i.e., in many cases we do not know if the forests are encroaching on land previously occupied by sagebrush and grasslands for a long period or if they are re-occupying ground periodically occupied by forest. Th ...
AN ABSTRACT OF THE THESIS OF
... selection and used a matched location-random point design. Vegetation patch edges were used more often than interior locations in patches greater than six meters in diameter. This indicates that habitat complexity is an important consideration for habitat conservation plans. We were unable to detec ...
... selection and used a matched location-random point design. Vegetation patch edges were used more often than interior locations in patches greater than six meters in diameter. This indicates that habitat complexity is an important consideration for habitat conservation plans. We were unable to detec ...
Mine area - Conservation Significant fauna and habitat
... Oakwood 2000). Both sexes mature at 11 months. Due to the discrete male cohorts that arise within populations, any factor that significantly increases mortality rates of female and juvenile Northern Quolls could cause rapid local extinction of quoll populations; if no juvenile males survive to adult ...
... Oakwood 2000). Both sexes mature at 11 months. Due to the discrete male cohorts that arise within populations, any factor that significantly increases mortality rates of female and juvenile Northern Quolls could cause rapid local extinction of quoll populations; if no juvenile males survive to adult ...
Petition to list the Giant Palouse Earthworm
... Aquolls. These soils are generally deep, loamy to silty, and have formed in loess, alluvium, or glacial outwash. Soils in mountainous areas are shallower and contain rock fragments. Potential Natural Vegetation. Grasslands and meadow-steppe vegetation dominated by grasses are the prototypical vegeta ...
... Aquolls. These soils are generally deep, loamy to silty, and have formed in loess, alluvium, or glacial outwash. Soils in mountainous areas are shallower and contain rock fragments. Potential Natural Vegetation. Grasslands and meadow-steppe vegetation dominated by grasses are the prototypical vegeta ...
ecological and reproductive character displacement
... Coevolution of interacting species can cause their phenotypes to diverge, because of either resource competition or mate choice and interspecific hybridization. Understanding the importance of and the conditions that facilitate such divergent coevolution will illuminate the role of competition in ad ...
... Coevolution of interacting species can cause their phenotypes to diverge, because of either resource competition or mate choice and interspecific hybridization. Understanding the importance of and the conditions that facilitate such divergent coevolution will illuminate the role of competition in ad ...
Models of Extinction
... minimize effects such as these, it has become common in studies of extinction to examine not only extinction rates (taxa becoming extinction per unit time) but also total extinction (taxa becoming extinct in each stage). While the total extinction does not suffer from large fluctuations in short sta ...
... minimize effects such as these, it has become common in studies of extinction to examine not only extinction rates (taxa becoming extinction per unit time) but also total extinction (taxa becoming extinct in each stage). While the total extinction does not suffer from large fluctuations in short sta ...
Invasive Alien Species Fact Sheet – Dreissena polymorpha
... is, however, evidence for species-specific sperm attractants suggesting that interspecific fertilization may be rare in nature (hybrids are very rare both in North America and in the Volga River basin (M. Orlova, pers. comm.). If hybridization does occur; these hybrids will constitute a very small p ...
... is, however, evidence for species-specific sperm attractants suggesting that interspecific fertilization may be rare in nature (hybrids are very rare both in North America and in the Volga River basin (M. Orlova, pers. comm.). If hybridization does occur; these hybrids will constitute a very small p ...
Distribution of zooxanthellate zoanthid species
... polyps are uniformly smooth on the outer surface. One species of Isaurus, I. tuberculatus Gray 1828, was also examined in this study. Four species of Palythoa (Sphenopidae) were also examined here; P. tuberculosa Delage and Herouard 1901, P. mutuki Carlgren 1937, P. heliodiscus Ryland and Lancaster ...
... polyps are uniformly smooth on the outer surface. One species of Isaurus, I. tuberculatus Gray 1828, was also examined in this study. Four species of Palythoa (Sphenopidae) were also examined here; P. tuberculosa Delage and Herouard 1901, P. mutuki Carlgren 1937, P. heliodiscus Ryland and Lancaster ...
The Role of Bankside Habitat in River Ecology
... provide most of the faunaI, diversity and furnish cover for both adult and juvenile fish. This area requires basic research to support, underpin and enable development of optimal management procedures. Knowledge of this habitat is essential in order to sustain faunal- and floral diversity, encourage ...
... provide most of the faunaI, diversity and furnish cover for both adult and juvenile fish. This area requires basic research to support, underpin and enable development of optimal management procedures. Knowledge of this habitat is essential in order to sustain faunal- and floral diversity, encourage ...
Models of Extinction: A Review
... minimize effects such as these, it has become common in studies of extinction to examine not only extinction rates (taxa becoming extinction per unit time) but also total extinction (taxa becoming extinct in each stage). While the total extinction does not suffer from large fluctuations in short sta ...
... minimize effects such as these, it has become common in studies of extinction to examine not only extinction rates (taxa becoming extinction per unit time) but also total extinction (taxa becoming extinct in each stage). While the total extinction does not suffer from large fluctuations in short sta ...
Complete list of Research Projects, and abstracts
... reported in the upper Midwest and northeast, there are cases reported from throughout California every year, yet research on ticks and the diseases they vector has been restricted primarily to a handful of northern California counties. Recent research has extended this work to Santa Barbara County a ...
... reported in the upper Midwest and northeast, there are cases reported from throughout California every year, yet research on ticks and the diseases they vector has been restricted primarily to a handful of northern California counties. Recent research has extended this work to Santa Barbara County a ...
Abiotic and biotic factors influencing the assemblage of tadpoles
... and anthropogenic/compensatory waterbodies. The specialist ‘acid’ frog species had higher relative abundance and reproduced predominantly within natural waterbodies. These patterns are explained by the ideal environmental variables for these species in these natural habitats. The lower relative abun ...
... and anthropogenic/compensatory waterbodies. The specialist ‘acid’ frog species had higher relative abundance and reproduced predominantly within natural waterbodies. These patterns are explained by the ideal environmental variables for these species in these natural habitats. The lower relative abun ...