Reptile assemblages across agricultural landscapes
... leading to the drastic reduction and fragmentation of patches of natural and semi–natural vegetation, and to the creation of more uniform landscapes. Intensive agriculture is largely accepted today as one of the major causes of large–scale biodiversity loss (Wake, 1991; Foley et al., 2005). Reptiles ...
... leading to the drastic reduction and fragmentation of patches of natural and semi–natural vegetation, and to the creation of more uniform landscapes. Intensive agriculture is largely accepted today as one of the major causes of large–scale biodiversity loss (Wake, 1991; Foley et al., 2005). Reptiles ...
Life history strategies, population regulation, and implications for
... intrinsic rate of increase and appears to be favored in environmental settings having chronic or frequent densitydependent influences (K-selection) or in stressful habitats (adversity selection). The equilibrium strategy is common among fish taxa inhabiting caves (e.g., branchial-brooding amblyopsid ...
... intrinsic rate of increase and appears to be favored in environmental settings having chronic or frequent densitydependent influences (K-selection) or in stressful habitats (adversity selection). The equilibrium strategy is common among fish taxa inhabiting caves (e.g., branchial-brooding amblyopsid ...
Absence of phylogenetic signal in the niche structure of meadow
... coexistence of ecologically identical species. Thus, if the ecological traits that are important for coexistence were found to be conserved during evolution, this would challenge an important body of ecological theory. However, to date none of the traits that have been shown to display evolutionary ...
... coexistence of ecologically identical species. Thus, if the ecological traits that are important for coexistence were found to be conserved during evolution, this would challenge an important body of ecological theory. However, to date none of the traits that have been shown to display evolutionary ...
Prehensile-tailed Skink - The Maryland Zoo in Baltimore
... Prehensile tail: Unusual among lizards, the tail is prehensile, which means that it can be used to grasp. It is longer and better-muscled than other lizard tails, and is used as a fifth leg to hold on while the skink is climbing. Due to the unique nature of the tail, it cannot be dropped to distra ...
... Prehensile tail: Unusual among lizards, the tail is prehensile, which means that it can be used to grasp. It is longer and better-muscled than other lizard tails, and is used as a fifth leg to hold on while the skink is climbing. Due to the unique nature of the tail, it cannot be dropped to distra ...
two degrees of separation in complex food webs
... as in other complex, small-world networks12,30, the adage would have been undermined by the suggestion that substantial fractions of species are functionally isolated from one another. Our findings appear to make this possibility unlikely. Overall, the robustness of short characteristic path length ...
... as in other complex, small-world networks12,30, the adage would have been undermined by the suggestion that substantial fractions of species are functionally isolated from one another. Our findings appear to make this possibility unlikely. Overall, the robustness of short characteristic path length ...
Colony–colony interactions between highly invasive ants
... invasion “hotspots”. However, predictive species distribution modelling does not take into account biotic interactions (Guisan & Thuiller, 2005). Therefore it is important to investigate whether a single top dominant ant species may ultimately prevail, displacing other aggressive, yet less competiti ...
... invasion “hotspots”. However, predictive species distribution modelling does not take into account biotic interactions (Guisan & Thuiller, 2005). Therefore it is important to investigate whether a single top dominant ant species may ultimately prevail, displacing other aggressive, yet less competiti ...
Name That Relationship!
... return to the soil the cellulose materials of decaying wood. They get nutrition from wood and other cellulose materials, but cannot digest the cellulose themselves. The termites depend on onecelled protozoa to break down the cellulose in their stomachs so they can use it as food. NAME ...
... return to the soil the cellulose materials of decaying wood. They get nutrition from wood and other cellulose materials, but cannot digest the cellulose themselves. The termites depend on onecelled protozoa to break down the cellulose in their stomachs so they can use it as food. NAME ...
Biodiversity under threat in glacier-fed river systems
... selection analysis in which two competing categories of models, linear-like models versus quadratic-like models (see Methods), were fitted to the data. For the same reasons as stated above, the analysis of α-diversity was carried out on family data for the Ecuadorian and European alpine sites. Howev ...
... selection analysis in which two competing categories of models, linear-like models versus quadratic-like models (see Methods), were fitted to the data. For the same reasons as stated above, the analysis of α-diversity was carried out on family data for the Ecuadorian and European alpine sites. Howev ...
Community ecology and dynamics
... species are competitively superior (e.g. grow taller, grow faster) to others so that the initial colonisers of an opening do not necessarily maintain their presence there. Result is a reasonably PREDICTIVE SEQUENCE of species because different species have different strategies for exploiting resourc ...
... species are competitively superior (e.g. grow taller, grow faster) to others so that the initial colonisers of an opening do not necessarily maintain their presence there. Result is a reasonably PREDICTIVE SEQUENCE of species because different species have different strategies for exploiting resourc ...
Download title pages, acknowledgements, abstract, table of contents, list of tables and list of figures
... Introduced rats (Rattus rattus, R. norvegicus, and R. exulans) and/or mice (Mus musculus) occur on more than 80% of the world‘s island groups, where they pose great threats to native species. Understanding the interactions between these introduced rodents and the environments which they have invaded ...
... Introduced rats (Rattus rattus, R. norvegicus, and R. exulans) and/or mice (Mus musculus) occur on more than 80% of the world‘s island groups, where they pose great threats to native species. Understanding the interactions between these introduced rodents and the environments which they have invaded ...
Invasive species: a global concern bubbling to the
... Because of the wider effects than only on biodiversity, another possible definition for invasive alien species is “an alien species whose establishment and spread threatens ecosystems, habitats or species with economic or environmental harm” (McNeely et al., 2001). Such establishment and spread can ...
... Because of the wider effects than only on biodiversity, another possible definition for invasive alien species is “an alien species whose establishment and spread threatens ecosystems, habitats or species with economic or environmental harm” (McNeely et al., 2001). Such establishment and spread can ...
Biodiversity as spatial insurance: the effects of habitat fragmentation
... regions (e.g. Hector et al. 1999) we know remarkably little about spatial variation in BEF relationships at regional scales. We also assumed that the species–area relationship could be used as a first approximation to map the distribution of fragment size to the spatial variance in biodiversity. The ...
... regions (e.g. Hector et al. 1999) we know remarkably little about spatial variation in BEF relationships at regional scales. We also assumed that the species–area relationship could be used as a first approximation to map the distribution of fragment size to the spatial variance in biodiversity. The ...
b10vrv2042
... How does competition shape communities? By causing species to divide resources, competition helps determine the number and kinds of species in a community and the niche each species occupies. ...
... How does competition shape communities? By causing species to divide resources, competition helps determine the number and kinds of species in a community and the niche each species occupies. ...
Macrozoobenthos
... • Lower epibenthic predation pressure as present after more severe winters? • What will WFD decide? ...
... • Lower epibenthic predation pressure as present after more severe winters? • What will WFD decide? ...
Colour Patterns Do Not Diagnose Species
... lucorum. The Danish B. magnus resolved as a sister group to Irish B. magnus (Clade 1; 1.00 Bayesian Posterior Probability, (BPP)), differentiated by two polymorphisms that represent synonymous substitutions. Danish, Irish and Orkney Island B. cryptarum resolved as a monophyletic group with Finnish r ...
... lucorum. The Danish B. magnus resolved as a sister group to Irish B. magnus (Clade 1; 1.00 Bayesian Posterior Probability, (BPP)), differentiated by two polymorphisms that represent synonymous substitutions. Danish, Irish and Orkney Island B. cryptarum resolved as a monophyletic group with Finnish r ...
Niches and Community Interactions
... How does competition shape communities? By causing species to divide resources, competition helps determine the number and kinds of species in a community and the niche each species occupies. ...
... How does competition shape communities? By causing species to divide resources, competition helps determine the number and kinds of species in a community and the niche each species occupies. ...
Seed Dispersal and Spatial Pattern in Tropical Trees
... are strongly correlated with spatial distributions for hundreds of tree species, and therefore with the community structure of tropical forests. Tropical tree species vary in their ability to disperse seeds. Limited dispersal is known to cause spatial aggregation among seeds and seedlings of pioneer ...
... are strongly correlated with spatial distributions for hundreds of tree species, and therefore with the community structure of tropical forests. Tropical tree species vary in their ability to disperse seeds. Limited dispersal is known to cause spatial aggregation among seeds and seedlings of pioneer ...
full text
... strong dispersal barrier for species that depend on moist and cool cloud forest habitat, and this ...
... strong dispersal barrier for species that depend on moist and cool cloud forest habitat, and this ...
Molluscs
... Endeavour to protect sites of particular significance to Olympia oysters when considering proposals for tenures development or other intertidal activities via Habitat referral process. Collect and collate information on distribution, abundance and population structure of Olympia oysters in BC. Ident ...
... Endeavour to protect sites of particular significance to Olympia oysters when considering proposals for tenures development or other intertidal activities via Habitat referral process. Collect and collate information on distribution, abundance and population structure of Olympia oysters in BC. Ident ...
endangered species
... This law identified those species that are considered endangered and made it illegal to take certain actions that harm or could lead to a species becoming extinct, including prohibiting hunting of endangered species and destruction of their habitat. This law also made it illegal to keep these specie ...
... This law identified those species that are considered endangered and made it illegal to take certain actions that harm or could lead to a species becoming extinct, including prohibiting hunting of endangered species and destruction of their habitat. This law also made it illegal to keep these specie ...
Habitat Modelling, by Guillem Chust - EURO
... response to global warming that are among the fastest and largest of any marine or terrestrial group (Beaugrand et al., 2002 Science). • Warming of the North Atlantic basin (35º to 65º) at all latitudes in 1960-2004: ...
... response to global warming that are among the fastest and largest of any marine or terrestrial group (Beaugrand et al., 2002 Science). • Warming of the North Atlantic basin (35º to 65º) at all latitudes in 1960-2004: ...
AP Biology Ecology Unit Study Questions These questions are
... -‐ Explain why a population that fits the logistic growth model increases more rapidly at intermediate size that at relatively small or large sizes. -‐ When a farmer abandons a field, it is quickly ...
... -‐ Explain why a population that fits the logistic growth model increases more rapidly at intermediate size that at relatively small or large sizes. -‐ When a farmer abandons a field, it is quickly ...
View/Open
... to natural areas, get little attention, and this is why the USDA has been most active among the federal agencies in using risk assessments. Usually the question being asked is whether a species can vector one or more other species that may become pests of agriculture, silviculture, or aquaculture (e ...
... to natural areas, get little attention, and this is why the USDA has been most active among the federal agencies in using risk assessments. Usually the question being asked is whether a species can vector one or more other species that may become pests of agriculture, silviculture, or aquaculture (e ...
The importance of having two species instead of one in
... populations as revealed by molecular analysis and adaptive differences indicated by life history and other ecological information. Even if it integrates the contributions of both genetics and ecology, the ESU concept is criticized because it is too subjective as it relies largely – or scarcely – on ...
... populations as revealed by molecular analysis and adaptive differences indicated by life history and other ecological information. Even if it integrates the contributions of both genetics and ecology, the ESU concept is criticized because it is too subjective as it relies largely – or scarcely – on ...
Population and community
... A number of factors like availability of food, space, water, and pests may regulate population size. In general, the factors responsible for population regulation can be density dependent (competition, predation, parasitism, disease outbreak, or herbivory) or density independent (environmental facto ...
... A number of factors like availability of food, space, water, and pests may regulate population size. In general, the factors responsible for population regulation can be density dependent (competition, predation, parasitism, disease outbreak, or herbivory) or density independent (environmental facto ...