Sink habitats can alter ecological outcomes for competing species
... return to the source habitat (B. Kotler, personal communication). While ideal free populations in which individuals move freely to maximize their per-capita fitness do not occupy sink habitats under equilibrium conditions (Holt 1985), they may occupy sink habitats under non-equilibrium conditions (H ...
... return to the source habitat (B. Kotler, personal communication). While ideal free populations in which individuals move freely to maximize their per-capita fitness do not occupy sink habitats under equilibrium conditions (Holt 1985), they may occupy sink habitats under non-equilibrium conditions (H ...
Conservation Through Management – Cut Wood as Substrate for
... the last century, conservation biology related to forests is a young discipline, its coming of age in Sweden represented by the first IUCN-adapted Red Lists and their associated educational materials (Ingelög et al. 1984; Ehnström and Waldén 1986). Together with Red Lists from other Scandinavian cou ...
... the last century, conservation biology related to forests is a young discipline, its coming of age in Sweden represented by the first IUCN-adapted Red Lists and their associated educational materials (Ingelög et al. 1984; Ehnström and Waldén 1986). Together with Red Lists from other Scandinavian cou ...
Threatened Species Lists - Friends of the Brush-tailed Rock
... females; tree hollows are favoured but spherical nests have been found under the bark of eucalypts and in shredded bark in tree forks. Appear to be mainly solitary, each individual using several nests, with males having non-exclusive home-ranges of about 0.68 hectares and females about 0.35 hectares ...
... females; tree hollows are favoured but spherical nests have been found under the bark of eucalypts and in shredded bark in tree forks. Appear to be mainly solitary, each individual using several nests, with males having non-exclusive home-ranges of about 0.68 hectares and females about 0.35 hectares ...
A quicker return energyuse strategy by populations of a subtropical
... thus could not be used to calculate payback time and PEUE because Pmax was measured on the youngest fully expanded leaf. To further evaluate differences between plants from invasive and native populations in traits involving gas exchange, mass-based Pmax, stomatal conductance (Gs) and respiration ra ...
... thus could not be used to calculate payback time and PEUE because Pmax was measured on the youngest fully expanded leaf. To further evaluate differences between plants from invasive and native populations in traits involving gas exchange, mass-based Pmax, stomatal conductance (Gs) and respiration ra ...
Interspecific Abundance-Range Size Relationships
... where CV is the coefficient of spatial variation of abundances (also calculated across all sites). The distribution of a species decreases with decreasing density and increasing spatial variation in densities. A significant positive relationship between CV and po was observed when controlling for th ...
... where CV is the coefficient of spatial variation of abundances (also calculated across all sites). The distribution of a species decreases with decreasing density and increasing spatial variation in densities. A significant positive relationship between CV and po was observed when controlling for th ...
The role of ecological interactions in determining species
... Phytophagous insects make good subjects for examining the extent to which ecological interactions determine the geographical ranges of species and changes in those ranges over time. First, phytophagous insects and the plants on which they feed comprise a significant proportion of overall terrestrial ...
... Phytophagous insects make good subjects for examining the extent to which ecological interactions determine the geographical ranges of species and changes in those ranges over time. First, phytophagous insects and the plants on which they feed comprise a significant proportion of overall terrestrial ...
MATHEMATICAL MODELS IN POPULATION DYNAMICS BY
... 1.3 Methods for Analysis of Population Dynamics .............................................................................. 8 ...
... 1.3 Methods for Analysis of Population Dynamics .............................................................................. 8 ...
University of Groningen The Serengeti food web de Visser
... Higher extinction risks are more often found among large-sized species and ⁄ or species at high trophic levels (Cardillo et al. 2005). This observation provides a predictable sequence of species loss under increased human pressure and is used in theoretical studies that investigate the consequences ...
... Higher extinction risks are more often found among large-sized species and ⁄ or species at high trophic levels (Cardillo et al. 2005). This observation provides a predictable sequence of species loss under increased human pressure and is used in theoretical studies that investigate the consequences ...
Summary - Census of Marine Life Secretariat
... Put a man on the moon by 1970. This was the "Grand Challenge" (Briscoe, pers. com.) that mesmerized the public and galvanized much of the scientific community of the US in the 1960s. Yet the goal itself (a man standing on the moon) was actually relatively meaningless. The meaning behind the challeng ...
... Put a man on the moon by 1970. This was the "Grand Challenge" (Briscoe, pers. com.) that mesmerized the public and galvanized much of the scientific community of the US in the 1960s. Yet the goal itself (a man standing on the moon) was actually relatively meaningless. The meaning behind the challeng ...
Conservation Assessment for the Red-Tailed Chipmunk
... its habitat in the westernmost edge of its distribution in northeastern Washington. Scope I found only limited information regarding the distribution and ecology of red-tailed chipmunks in Washington. Therefore, I draw on accounts of the species from its entire range. There is no information regardi ...
... its habitat in the westernmost edge of its distribution in northeastern Washington. Scope I found only limited information regarding the distribution and ecology of red-tailed chipmunks in Washington. Therefore, I draw on accounts of the species from its entire range. There is no information regardi ...
AND SPECIES RICHNESS
... suggest thatpatternsarelikely scale dependent.Some of the disparityin perceived patternsmay be a consequenceof variationin the spatial scale of analyses. Efforts to determinethe relationshipbetween numberof species (or number of functional types, sensu 41) and the propertiesof ecosystems have increa ...
... suggest thatpatternsarelikely scale dependent.Some of the disparityin perceived patternsmay be a consequenceof variationin the spatial scale of analyses. Efforts to determinethe relationshipbetween numberof species (or number of functional types, sensu 41) and the propertiesof ecosystems have increa ...
Forest Conservation Biology
... diversity (i.e., biodiversity) – Save it before it becomes damaged, degraded, or destroyed – Based on fundamental ecological and evolutionary principles – Conservation biology (the science) vs. biological conservation (the practice) – Society for Conservation Biology (www.conbio.org/) » SCB Mission: ...
... diversity (i.e., biodiversity) – Save it before it becomes damaged, degraded, or destroyed – Based on fundamental ecological and evolutionary principles – Conservation biology (the science) vs. biological conservation (the practice) – Society for Conservation Biology (www.conbio.org/) » SCB Mission: ...
Local diversity reduces infection risk across multiple
... 1. In many host–parasite systems, infection risk can be reduced by high local biodiversity, though the mitigating effects of diversity are context dependent and not universal. 2. In aquatic ecosystems, local fauna can reduce the transmission success of parasite free-swimming infective stages by prey ...
... 1. In many host–parasite systems, infection risk can be reduced by high local biodiversity, though the mitigating effects of diversity are context dependent and not universal. 2. In aquatic ecosystems, local fauna can reduce the transmission success of parasite free-swimming infective stages by prey ...
An acyltransferase-like gene obtained by differential gene
... PCR-select subtraction analysis was conducted between cDNAs from the leaves of the bitter cultivar and sweet cultivar. From the first screening, 288 clones each were selected as specific candidates for the bitter and sweet cultivars. Using dot-blot hybridization, these clones were further delimited ...
... PCR-select subtraction analysis was conducted between cDNAs from the leaves of the bitter cultivar and sweet cultivar. From the first screening, 288 clones each were selected as specific candidates for the bitter and sweet cultivars. Using dot-blot hybridization, these clones were further delimited ...
Evolutionary Distances for Protein
... From work on nucleic acid sequence evolution, however, it is clear that not only rates of substitution between states, but also the equilibrium frequencies of the different states are important; Felsenstein (1981) and Gojobori (1983) show that changes in equilibrium frequencies may strongly influenc ...
... From work on nucleic acid sequence evolution, however, it is clear that not only rates of substitution between states, but also the equilibrium frequencies of the different states are important; Felsenstein (1981) and Gojobori (1983) show that changes in equilibrium frequencies may strongly influenc ...
Community-wide character displacement in barnacles
... program (v. 1.62; US National Institutes of Health, http:// rsb.info.nih.gov/nih-image/). To determine if phenotypic clines (in traits exhibiting character displacement) occur between communities, we employed a two-way ANOVA testing for intraspecific differences between sites on the two species that ...
... program (v. 1.62; US National Institutes of Health, http:// rsb.info.nih.gov/nih-image/). To determine if phenotypic clines (in traits exhibiting character displacement) occur between communities, we employed a two-way ANOVA testing for intraspecific differences between sites on the two species that ...
Behavioural variability in marine larvae
... stimuli and, as a result, most of the data are from laboratory experiments. It may seem a trivial task to look for variability in the responses of larvae to stimuli, because even the most casual observer realizes that the answer is that there is some. However, it is not obvious why there should be s ...
... stimuli and, as a result, most of the data are from laboratory experiments. It may seem a trivial task to look for variability in the responses of larvae to stimuli, because even the most casual observer realizes that the answer is that there is some. However, it is not obvious why there should be s ...
thesis12.11 - Academic Commons
... clumped/under dispersed (the presence of one point increases the possibility of finding another in its vicinity) and over dispersed (a points presence reduces the probability of finding another individual nearby). Both individuals and patches can be over and under dispersed. Scale will influence the ...
... clumped/under dispersed (the presence of one point increases the possibility of finding another in its vicinity) and over dispersed (a points presence reduces the probability of finding another individual nearby). Both individuals and patches can be over and under dispersed. Scale will influence the ...
Solutions - Vanier College
... been proposed, including overexploitation of perch and herring by humans through the 1960s and the warming of the northern Pacific in the 1970s, which may have made the temperature unsuitable for some species. Human hunting of plankton-feeding baleen whales may even indirectly play a role. Since pol ...
... been proposed, including overexploitation of perch and herring by humans through the 1960s and the warming of the northern Pacific in the 1970s, which may have made the temperature unsuitable for some species. Human hunting of plankton-feeding baleen whales may even indirectly play a role. Since pol ...
Parasites, emerging disease and wildlife conservation
... species of frogs in Australian rainforests (Retallick et al., 2004). In addition to such new, emerging diseases, a major concern to wildlife diversity is the inadvertent introduction, by translocation or release of captive bred animals, of known ‘animal’ pathogens into populations that have no previ ...
... species of frogs in Australian rainforests (Retallick et al., 2004). In addition to such new, emerging diseases, a major concern to wildlife diversity is the inadvertent introduction, by translocation or release of captive bred animals, of known ‘animal’ pathogens into populations that have no previ ...
Van Buskirk 2002
... Semlitsch et al. 1990; Leips et al. 2000). If adaptive plasticity evolves under selection imposed by variable environments, then populations or species that experience relatively variable conditions should exhibit greater amounts of plasticity. Here, I report a test of this prediction based on a com ...
... Semlitsch et al. 1990; Leips et al. 2000). If adaptive plasticity evolves under selection imposed by variable environments, then populations or species that experience relatively variable conditions should exhibit greater amounts of plasticity. Here, I report a test of this prediction based on a com ...
Extracting and Explaining Biological Knowledge in Microarray Data
... able to assist the bio–data analysis (see [1] for brief overview). One important area are the tasks of similarity search, comparison and grouping of gene patterns and assisting in understanding these patterns in medical bio–data, as many diseases are triggered by a combination of genes acting togeth ...
... able to assist the bio–data analysis (see [1] for brief overview). One important area are the tasks of similarity search, comparison and grouping of gene patterns and assisting in understanding these patterns in medical bio–data, as many diseases are triggered by a combination of genes acting togeth ...