Why Maasai Kill Lions in East Africa
... from 2004-2006 were caused by lions, of the deaths reported to authorities and independently verified in their research (Maclellan et al 2009: 2422). These areas all have their own unique ecological and ecosystem factors that could influence the incidence rate of depredation of livestock by lions, b ...
... from 2004-2006 were caused by lions, of the deaths reported to authorities and independently verified in their research (Maclellan et al 2009: 2422). These areas all have their own unique ecological and ecosystem factors that could influence the incidence rate of depredation of livestock by lions, b ...
predators, parasitoids, and pathogens as mortality agents in
... of increasing complexity by sequentially adding factors to determine their abilities to account for variability in mortality. However, limited data precluded any models containing more than two factors. Further, each immature stage had to be analyzed separately due to a lack of independence in the d ...
... of increasing complexity by sequentially adding factors to determine their abilities to account for variability in mortality. However, limited data precluded any models containing more than two factors. Further, each immature stage had to be analyzed separately due to a lack of independence in the d ...
COSEWIC Assessment for Grizzly Bear
... Special Concern Reason for designation The global distribution of this large-bodied carnivore has declined by over 50% since the 1800s, with western Canada representing a significant core of the current North American range. A habitat generalist, its distribution and relative abundance in the absenc ...
... Special Concern Reason for designation The global distribution of this large-bodied carnivore has declined by over 50% since the 1800s, with western Canada representing a significant core of the current North American range. A habitat generalist, its distribution and relative abundance in the absenc ...
Population and Ecosystem Attribute Trends of Aquatic
... storage in sediments. The relevant SAS output is included in the appendix. The next regression that I ran used Coarse Particulate Organic Matter to Fine Particulate Organic Matter Index as the dependent variable with precipitation as the independent variable. This regression had an equation of: ŷ= - ...
... storage in sediments. The relevant SAS output is included in the appendix. The next regression that I ran used Coarse Particulate Organic Matter to Fine Particulate Organic Matter Index as the dependent variable with precipitation as the independent variable. This regression had an equation of: ŷ= - ...
A complete shikimate pathway in Toxoplasma gondii: an ancient
... T. gondii shikimate pathway genes clustered with the plants or the cyanobacterial taxonomic groups on phylogenetic trees (Kohler et al., 1997). Inheritance from the mitochondria would be evident if the T. gondii shikimate pathway genes clustered with the a-proteobacterial taxonomic groups on phyloge ...
... T. gondii shikimate pathway genes clustered with the plants or the cyanobacterial taxonomic groups on phylogenetic trees (Kohler et al., 1997). Inheritance from the mitochondria would be evident if the T. gondii shikimate pathway genes clustered with the a-proteobacterial taxonomic groups on phyloge ...
Adaptation, density dependence and the responses of trophic level
... The responses of abundances to the extrinsic per capita mortality rates are obtained by differentiating the equilibrium conditions for equations (1a–d) with respect to each of the di. The resulting formulae can be simplified somewhat by assuming that the equilibrium of the system is locally stable. ...
... The responses of abundances to the extrinsic per capita mortality rates are obtained by differentiating the equilibrium conditions for equations (1a–d) with respect to each of the di. The resulting formulae can be simplified somewhat by assuming that the equilibrium of the system is locally stable. ...
Practice Guidelines for the Molecular Diagnosis of Haemophilia B.
... function, principally by means of cross-species amino acid alignment algorithms, evaluation using splice-site prediction tools and documented searches to demonstrate that the variant has not been previously reported in the literature or on mutation databases. This analysis can be assisted by the use ...
... function, principally by means of cross-species amino acid alignment algorithms, evaluation using splice-site prediction tools and documented searches to demonstrate that the variant has not been previously reported in the literature or on mutation databases. This analysis can be assisted by the use ...
Hemigrapsus sanguineus - Narragansett Bay National Estuarine
... “The Asian shore crab (Hemigrapsus sanguineus) was first discovered on the east coast of the U.S. in New Jersey in 1988. It is assumed that like many invasive species it was carried here in ballast water from an ocean-going vessel. Since 1988, this crab has become abundant along a large part of the ...
... “The Asian shore crab (Hemigrapsus sanguineus) was first discovered on the east coast of the U.S. in New Jersey in 1988. It is assumed that like many invasive species it was carried here in ballast water from an ocean-going vessel. Since 1988, this crab has become abundant along a large part of the ...
Biological control of root-knot nematodes (Meloidogyne spp.) by the
... following gradients of root exudates or reinfects the host plant on which it was born. In the J2-stage the nematode is relatively exposed to environmental conditions and vulnerable to predation. A new host needs to be located as quickly as possible. When arriving at a root of a suitable host the J2 ...
... following gradients of root exudates or reinfects the host plant on which it was born. In the J2-stage the nematode is relatively exposed to environmental conditions and vulnerable to predation. A new host needs to be located as quickly as possible. When arriving at a root of a suitable host the J2 ...
Evolution of resistance and tolerance to herbivores: testing
... Núñez-Farfán, 2003). Since tolerance benefits are expressed in the presence of damage, plants treated with insecticide were not included in this analysis. ...
... Núñez-Farfán, 2003). Since tolerance benefits are expressed in the presence of damage, plants treated with insecticide were not included in this analysis. ...
The coexistence of species - Revista Chilena de Historia Natural
... This paper is a critical literature review on the topic ofthe coexistence of similar species within ecological communities. A conceptual framework is provided for dividing coexistence studies and concepts into three distinct time scales. The first six sections deal primarily with ecological-scale, o ...
... This paper is a critical literature review on the topic ofthe coexistence of similar species within ecological communities. A conceptual framework is provided for dividing coexistence studies and concepts into three distinct time scales. The first six sections deal primarily with ecological-scale, o ...
Ecology
... More than 5,000 species of fungi attack important crop and horticultural plants. Mildews, rusts, and smuts grow on the surface of the host plant and extend their hyphae (fungal filaments) into the plant to extract nutrients from its tissues. ...
... More than 5,000 species of fungi attack important crop and horticultural plants. Mildews, rusts, and smuts grow on the surface of the host plant and extend their hyphae (fungal filaments) into the plant to extract nutrients from its tissues. ...
Accuracy of initial codon selection by aminoacyl
... provided that discarding of noncognate substrate in the proofreading steps is driven by free energy dissipation (10, 14). Another case is Ninio’s explanation (15) of error prone (ram) and hyperaccurate (strA) ribosomal mutants (16) as caused by varying utilization, αd, of the d values of aa-tRNA sel ...
... provided that discarding of noncognate substrate in the proofreading steps is driven by free energy dissipation (10, 14). Another case is Ninio’s explanation (15) of error prone (ram) and hyperaccurate (strA) ribosomal mutants (16) as caused by varying utilization, αd, of the d values of aa-tRNA sel ...
Stable Isotope Analysis Reveals That Agricultural Habitat Provides
... and nitrogen (δ15N) isotope ratios, because foodweb components differ significantly and predictably between marine and C-3 terrestrial ecosystems ...
... and nitrogen (δ15N) isotope ratios, because foodweb components differ significantly and predictably between marine and C-3 terrestrial ecosystems ...
MODELING CARNIVORE HABITAT IN THE ROCKY MOUNTAIN
... occupied by bears often represent habitat where food resources vary greatly between years (Mattson et al. 1991a). East-slope ecosystems with continental climate are not generally as productive bear habitat as west-slope ecosystems with a maritime climate and high salmon abundance (B. McLellan, pers. ...
... occupied by bears often represent habitat where food resources vary greatly between years (Mattson et al. 1991a). East-slope ecosystems with continental climate are not generally as productive bear habitat as west-slope ecosystems with a maritime climate and high salmon abundance (B. McLellan, pers. ...
Benefits derived from opportunistic survival
... using (1) known survival and reproduction of intervention seals, and (2) expected survival and reproduction as determined using demographic rates estimated for the population at large. This analysis indicated that 17−24% of the 2012 population comprised either intervention seals or descendants of in ...
... using (1) known survival and reproduction of intervention seals, and (2) expected survival and reproduction as determined using demographic rates estimated for the population at large. This analysis indicated that 17−24% of the 2012 population comprised either intervention seals or descendants of in ...
Modeling nutrient transport and transformation by pool
... forest habitats in the eastern and midwestern United States and Canada. 2. To model the influence of wood frogs on nutrient transport and transformation through time, we coupled long-term population monitoring data (1985–2005) from a wood frog population with estimates of the elemental composition o ...
... forest habitats in the eastern and midwestern United States and Canada. 2. To model the influence of wood frogs on nutrient transport and transformation through time, we coupled long-term population monitoring data (1985–2005) from a wood frog population with estimates of the elemental composition o ...
nsw scientific committee
... population. Generation length reflects the turnover rate of breeding individuals in a population. It is greater than the age at first breeding and less than the age of the oldest breeding individual, except in taxa that breed only once. Where generation length varies under threat, the more natural ( ...
... population. Generation length reflects the turnover rate of breeding individuals in a population. It is greater than the age at first breeding and less than the age of the oldest breeding individual, except in taxa that breed only once. Where generation length varies under threat, the more natural ( ...
Biology of the black-backed jackal Canis mesomelas
... several days. If the jackal was an ideal rabies vector, a rabies epizootic should surely have followed at least one of these events given the very high population density recorded . Enigmatically, however, no further cases were recorded in either year despite close monitoring of the animals in the a ...
... several days. If the jackal was an ideal rabies vector, a rabies epizootic should surely have followed at least one of these events given the very high population density recorded . Enigmatically, however, no further cases were recorded in either year despite close monitoring of the animals in the a ...
The Role of Predation in Wildlife Population Dynamics
... Seip (1992) suggests that one caribou population was slowly increasing because its migratory behavior kept the caribou separated from wolves and moose throughout the year resulting in low wolf predation. Fryxell et al. (1988) postulated that migratory ungulates on the Serengeti may escape predatory ...
... Seip (1992) suggests that one caribou population was slowly increasing because its migratory behavior kept the caribou separated from wolves and moose throughout the year resulting in low wolf predation. Fryxell et al. (1988) postulated that migratory ungulates on the Serengeti may escape predatory ...
Untitled - Department of Ecology and Evolutionary Biology
... major impacts on commonly considered attributes of complex systems, such as self-organization, ...
... major impacts on commonly considered attributes of complex systems, such as self-organization, ...
Neotropical fish–fruit interactions: eco
... Frugivorous fish play a prominent role in seed dispersal and reproductive dynamics of plant communities in riparian and floodplain habitats of tropical regions worldwide. In Neotropical wetlands, many plant species have fleshy fruits and synchronize their fruiting with the flood season, when fruit-e ...
... Frugivorous fish play a prominent role in seed dispersal and reproductive dynamics of plant communities in riparian and floodplain habitats of tropical regions worldwide. In Neotropical wetlands, many plant species have fleshy fruits and synchronize their fruiting with the flood season, when fruit-e ...
Predation Risk Influences Adaptive Morphological Variation in Fish
... reduced foraging efficiency. However, if the prey demonstrates phenotypic plasticity in relation to the new environment, the cost of habitat shift might be mitigated. The relationship between phenotypic plasticity and habitat-specific resource use has been shown in numerous studies (Smith and Skúla ...
... reduced foraging efficiency. However, if the prey demonstrates phenotypic plasticity in relation to the new environment, the cost of habitat shift might be mitigated. The relationship between phenotypic plasticity and habitat-specific resource use has been shown in numerous studies (Smith and Skúla ...
Rethinking the Theoretical Foundation of Sociobiology
... a time when the desktop computing revolution, the study of complex interactions, and appreciation of such things as social control (e.g., Ratnieks and Visscher 1989; Boyd and Richerson 1992) and gene-culture coevolution (Lumsden and E O Wilson 1981; Boyd and Richerson 1985; Richerson and Boyd 2005) ...
... a time when the desktop computing revolution, the study of complex interactions, and appreciation of such things as social control (e.g., Ratnieks and Visscher 1989; Boyd and Richerson 1992) and gene-culture coevolution (Lumsden and E O Wilson 1981; Boyd and Richerson 1985; Richerson and Boyd 2005) ...