Components of breeding performance in two competing species
... that the progressive occupation of low quality territories as breeding density increases causes a decline in the mean per capita fecundity of a population while variation in fecundity increases. Several studies have supported the habitat heterogeneity hypothesis by correlating variation in the mean ...
... that the progressive occupation of low quality territories as breeding density increases causes a decline in the mean per capita fecundity of a population while variation in fecundity increases. Several studies have supported the habitat heterogeneity hypothesis by correlating variation in the mean ...
Threatened Species Conservation Act Statutory Review
... Jurisdictions both in Australia and internationally are committed to addressing the loss of biodiversity and promoting the sustainable use of biological resources through the implementation of effective legislation and strategies. Without appropriate tools for managing and protecting biodiversity, i ...
... Jurisdictions both in Australia and internationally are committed to addressing the loss of biodiversity and promoting the sustainable use of biological resources through the implementation of effective legislation and strategies. Without appropriate tools for managing and protecting biodiversity, i ...
Interspecific Competition and Species Co
... bodysize,billmorphology, In factwedidso for birdsandbats(ConnorandSimberloff othereasilyobserved characteristic. 1979) arestatisunusualarrangements in all threeexampleswe examined, tically are surprising. taxonomic families Statistically and Vuilleumier and Simberloff a also achievablefortherowandco ...
... bodysize,billmorphology, In factwedidso for birdsandbats(ConnorandSimberloff othereasilyobserved characteristic. 1979) arestatisunusualarrangements in all threeexampleswe examined, tically are surprising. taxonomic families Statistically and Vuilleumier and Simberloff a also achievablefortherowandco ...
The Fading Call oF The Wild - International Fund for Animal Welfare
... many other species around the globe, are faced with a multitude of avoid a future where Great Cats and Rare Canids remain only in threats, including loss of habitat, illegal hunting, and lack of their zoos, it will require help from everyone. natural food source. Wild cats, such as lions, jaguars an ...
... many other species around the globe, are faced with a multitude of avoid a future where Great Cats and Rare Canids remain only in threats, including loss of habitat, illegal hunting, and lack of their zoos, it will require help from everyone. natural food source. Wild cats, such as lions, jaguars an ...
CONCEPTUAL SYNTHESIS IN COMMUNITY ECOLOGY
... can articulate a very general theory of community dynamics, which may on the surface sound obvious and too generalized to make any specific predictions, but may, nonetheless, serve the same critical function as foundational theory in population genetics. Before proceeding, I should emphasize that I ...
... can articulate a very general theory of community dynamics, which may on the surface sound obvious and too generalized to make any specific predictions, but may, nonetheless, serve the same critical function as foundational theory in population genetics. Before proceeding, I should emphasize that I ...
Grassland root communities: species distributions and how they are
... indistinguishable roots. In this study we adapted a molecular method, fluorescent fragment length polymorphism, to identify root fragments and determine species root distributions in two grasslands in Yellowstone National Park (YNP). Aboveground biomass was measured, and soil cores (2 cm in diameter) ...
... indistinguishable roots. In this study we adapted a molecular method, fluorescent fragment length polymorphism, to identify root fragments and determine species root distributions in two grasslands in Yellowstone National Park (YNP). Aboveground biomass was measured, and soil cores (2 cm in diameter) ...
Global Biodiversity Change Indicators
... spatially and temporally highly resolved remote sensing at near global-extent, together with biodiversity observations, and adequate and transparent modeling frameworks. The indices build on detailed, remote-sensing informed maps of suitable habitat for single species. Maps are modeled using literat ...
... spatially and temporally highly resolved remote sensing at near global-extent, together with biodiversity observations, and adequate and transparent modeling frameworks. The indices build on detailed, remote-sensing informed maps of suitable habitat for single species. Maps are modeled using literat ...
Self-limitation as an explanation for species` relative abundances
... To examine whether self-limitation can help rare-species persist, I use a plant community model to simulate the effect of disproportionately strong negative frequency dependence on the long term persistence of the rare species in a simulated community. I then translate the results of this analysis i ...
... To examine whether self-limitation can help rare-species persist, I use a plant community model to simulate the effect of disproportionately strong negative frequency dependence on the long term persistence of the rare species in a simulated community. I then translate the results of this analysis i ...
Biological and ecological traits of marine species
... includes attributes of life stages, reproduction, body size, behaviour, feeding method, and diet. However, data on such attributes or species traits are widely scattered in the literature and are time consuming to gather (Naeem and Bunker 2009, Tyler et al. 2012). To solve this, databases of traits ...
... includes attributes of life stages, reproduction, body size, behaviour, feeding method, and diet. However, data on such attributes or species traits are widely scattered in the literature and are time consuming to gather (Naeem and Bunker 2009, Tyler et al. 2012). To solve this, databases of traits ...
Spatio-temporal community dynamics induced by frequency
... elucidate the importance of frequency or density dependent effects on spatio-temporal dynamics in plant communities. In a single species model with an Allee effect (positive intraspecific density dependence at low frequencies), the ability of small local initial adult distributions to establish and p ...
... elucidate the importance of frequency or density dependent effects on spatio-temporal dynamics in plant communities. In a single species model with an Allee effect (positive intraspecific density dependence at low frequencies), the ability of small local initial adult distributions to establish and p ...
How many species of host-specific insects feed on a species of
... 1990). Thomas (1990) further contended that tropical plants do share certain insect species and that Erwin’s estimates must be corrected accordingly. Most authors commented on the actual value of the proportion of specialist insect species that depend on a particular tree species, but few addressed ...
... 1990). Thomas (1990) further contended that tropical plants do share certain insect species and that Erwin’s estimates must be corrected accordingly. Most authors commented on the actual value of the proportion of specialist insect species that depend on a particular tree species, but few addressed ...
Comparison of the effects of artificial and natural barriers on large
... can potentially impact the competitive balance within animal communities by differentially affecting cooccurring species. The influence of barriers on the spatial distribution of species within whole communities has nonetheless received little attention. During a 4-year period, we studied the influe ...
... can potentially impact the competitive balance within animal communities by differentially affecting cooccurring species. The influence of barriers on the spatial distribution of species within whole communities has nonetheless received little attention. During a 4-year period, we studied the influe ...
Biological and ecological traits of marine species
... species’ place in the food web and body size. The value of biodiversity to society is being quantified in terms of ecosystem goods and services, with the species’ importance being dependent on their functional role in the ecosystems. Conservation biologists conduct species extinction risk assessment ...
... species’ place in the food web and body size. The value of biodiversity to society is being quantified in terms of ecosystem goods and services, with the species’ importance being dependent on their functional role in the ecosystems. Conservation biologists conduct species extinction risk assessment ...
HighFour Biology Round 4 Category C: Grades 9 – 10 Tuesday
... Explanation: Relative fitness is the contribution an individual makes to the gene pool of the next generation relative to the contributions of other individuals in the population. ...
... Explanation: Relative fitness is the contribution an individual makes to the gene pool of the next generation relative to the contributions of other individuals in the population. ...
Anthropomorphized species as tools for
... conservation agenda favoring a very small percentage of biodiversity (excluding, for example, all plants). It would also mean overlooking the application of a powerful tool to the promotion of low-profile species with high biological conservation value, such as invertebrates. We argue that anthropom ...
... conservation agenda favoring a very small percentage of biodiversity (excluding, for example, all plants). It would also mean overlooking the application of a powerful tool to the promotion of low-profile species with high biological conservation value, such as invertebrates. We argue that anthropom ...
Local diversity of arable weeds increases with landscape
... land). We quantified local site conditions, field management intensity and landscape characteristics, and used principle component analyses to ordinate the environmental variables. The percentage of arable land was negatively correlated with perimeter–area ratio, habitat-type diversity and topographic ...
... land). We quantified local site conditions, field management intensity and landscape characteristics, and used principle component analyses to ordinate the environmental variables. The percentage of arable land was negatively correlated with perimeter–area ratio, habitat-type diversity and topographic ...
Appendix
... Main findings: An average of ten 0.16 m2 cells were surveyed in each of eleven plots. An expert botanist resurveyed all cells. 5.9% of specimens were misidentified to species level. The average pseudoturnover rate was 24% (range: 0-69 across species types). The average percentage agreement between s ...
... Main findings: An average of ten 0.16 m2 cells were surveyed in each of eleven plots. An expert botanist resurveyed all cells. 5.9% of specimens were misidentified to species level. The average pseudoturnover rate was 24% (range: 0-69 across species types). The average percentage agreement between s ...
Despite its inhospitable appearance and lack of
... active or passive dispersion, accidentally penetrate underground. They are therefore occasional guests in this habitat, to which they are generally carried by water percolating from the surface. This situation is very frequent in surface and underground karstic aquifers, with infiltration passages w ...
... active or passive dispersion, accidentally penetrate underground. They are therefore occasional guests in this habitat, to which they are generally carried by water percolating from the surface. This situation is very frequent in surface and underground karstic aquifers, with infiltration passages w ...
review - Jordi Bascompte
... he goal of ecological research on species coexistence is to explain how the tremendous diversity of species that we see in nature persists despite differences between species in competitive ability1,2. However, empirically evaluating the interactions between a large set of competitors is logisticall ...
... he goal of ecological research on species coexistence is to explain how the tremendous diversity of species that we see in nature persists despite differences between species in competitive ability1,2. However, empirically evaluating the interactions between a large set of competitors is logisticall ...
Prey abundance and habitat use by migratory shorebirds at coastal
... stopover areas (Myers et al. 1987), but there are few areas that have the right combination of resources (Morrison and Harrington 1979). In some cases, between 50% and 80% of entire migrating populations of shorebirds (i.e., all individuals of a species migrating from a specific geographic region) u ...
... stopover areas (Myers et al. 1987), but there are few areas that have the right combination of resources (Morrison and Harrington 1979). In some cases, between 50% and 80% of entire migrating populations of shorebirds (i.e., all individuals of a species migrating from a specific geographic region) u ...
BRIEF COMMUNICATIONS
... was repeated once a week, and in total we removed 524 males. On average, we removed 175 6 72 (mean 6 SE) males from each treatment population. Selection and Statistical Analyses Estimates of survival selection on wing measurements are based on recapture data under the assumption that males not recap ...
... was repeated once a week, and in total we removed 524 males. On average, we removed 175 6 72 (mean 6 SE) males from each treatment population. Selection and Statistical Analyses Estimates of survival selection on wing measurements are based on recapture data under the assumption that males not recap ...
The beta-diversity of species interactions: Untangling the drivers of
... may suggest that beta-diversity is driven more strongly by the regional species pool than local community processes. In these cases, biogeographic and evolutionary processes that create geographic variation in the size and composition of the regional species pool may play a more central role in dete ...
... may suggest that beta-diversity is driven more strongly by the regional species pool than local community processes. In these cases, biogeographic and evolutionary processes that create geographic variation in the size and composition of the regional species pool may play a more central role in dete ...
Imported Pathogen: Woolly Adelgid Ecosystem Response
... have overlain on a GIS (Geographic Information Systems) map that shows other biological features as well as soil types and topographic characteristics. This map will facilitate our analysis of the way HWA spreads and help us determine whether the damage patterns observed in the present study are con ...
... have overlain on a GIS (Geographic Information Systems) map that shows other biological features as well as soil types and topographic characteristics. This map will facilitate our analysis of the way HWA spreads and help us determine whether the damage patterns observed in the present study are con ...
Spatial variation in keystone effects: small mammal diversity
... each study area (WGS84 projection; Zone 13N). Within the United States, colony sizes generally varied between 10 and 100 ha, although some may have been smaller or larger. We did not measure colony sites at all areas during 2003. The Mexican sites were more variable, with the largest colony reported ...
... each study area (WGS84 projection; Zone 13N). Within the United States, colony sizes generally varied between 10 and 100 ha, although some may have been smaller or larger. We did not measure colony sites at all areas during 2003. The Mexican sites were more variable, with the largest colony reported ...
Ecology Part 2 Relationships
... I can define symbiosis I can explain mutualism I can give an example of mutualism I can explain parasitism I can give an example of parasitism I can explain commensalism I can give an example of commensalism I can list 2 other animal interactions I can explain competition I can explain predation I c ...
... I can define symbiosis I can explain mutualism I can give an example of mutualism I can explain parasitism I can give an example of parasitism I can explain commensalism I can give an example of commensalism I can list 2 other animal interactions I can explain competition I can explain predation I c ...