Does functional redundancy exist?
... leads to neutral stability and perfect functional redundancy. For this theory to apply to natural systems, species should experience pure random drift and have no niche differences that determine their local competitive ability and their spatial and temporal responses to environmental gradients. Alt ...
... leads to neutral stability and perfect functional redundancy. For this theory to apply to natural systems, species should experience pure random drift and have no niche differences that determine their local competitive ability and their spatial and temporal responses to environmental gradients. Alt ...
From regional to global patterns in vertebrate scavenger
... on et al., 2014b). This knowledge will facilitate management and conservation of ecosystems under global change, especially regarding previous conservation and socioeconomic conflicts arisen from the mismanagement of some anthropogenic food subsidies (e.g. livestock carcasses in Asia and Europe; Tel ...
... on et al., 2014b). This knowledge will facilitate management and conservation of ecosystems under global change, especially regarding previous conservation and socioeconomic conflicts arisen from the mismanagement of some anthropogenic food subsidies (e.g. livestock carcasses in Asia and Europe; Tel ...
Ants, Bees, Wasps and the Majority of Insect Parasitoids.
... families and more than 115,000 described species spread across all continents except Antarctica. It is morphologically well defined, and considered beyond a doubt to be a natural group. Although there is no common name that applies to the whole order, its members are generally referred to as bees, w ...
... families and more than 115,000 described species spread across all continents except Antarctica. It is morphologically well defined, and considered beyond a doubt to be a natural group. Although there is no common name that applies to the whole order, its members are generally referred to as bees, w ...
The abstract booklet can be downloaded here
... Ecological niche modelling and phylogeography of two sister species with different thermal ranges Estimating trophic complexity of predator-‐prey interactions in a fragmented landscape using complex network and spe ...
... Ecological niche modelling and phylogeography of two sister species with different thermal ranges Estimating trophic complexity of predator-‐prey interactions in a fragmented landscape using complex network and spe ...
Keystone species - Department of Conservation
... placed some of the surviving species (e.g. kereru Hemiphaga novaeseelandiae) in keystone roles they did not formerly have, or at least increased their community importance. Another important way in which the ecological context can change markedly is by the addition of alien species. An added speci ...
... placed some of the surviving species (e.g. kereru Hemiphaga novaeseelandiae) in keystone roles they did not formerly have, or at least increased their community importance. Another important way in which the ecological context can change markedly is by the addition of alien species. An added speci ...
Challenging The "Distinct Population Segment" Definition Of Atlantic
... the Services rely primarily on a genetic analysis of the statistical differences in gene samples from two populations. The requirement of evolutionary significance is satisfied if a population is determined to have distinct phenotypic,3 9 life history, and habitat characteristics. The ESU doctrine a ...
... the Services rely primarily on a genetic analysis of the statistical differences in gene samples from two populations. The requirement of evolutionary significance is satisfied if a population is determined to have distinct phenotypic,3 9 life history, and habitat characteristics. The ESU doctrine a ...
Global Biodiversity Change Indicators
... typically constrained in their adequate geographic representation, the level of disaggregation they allow, their temporal resolution, and their scientific underpinning and transparency. The Species Habitat Indices are part of a new generation of indicators that address these limitations by utilizing ...
... typically constrained in their adequate geographic representation, the level of disaggregation they allow, their temporal resolution, and their scientific underpinning and transparency. The Species Habitat Indices are part of a new generation of indicators that address these limitations by utilizing ...
LIFE HISTORY VARIATION AND DIET OF THE ENDANGERED
... The fitness consequences of low genetic diversity in wild animal populations are of great concern to species conservation. The endangered tidewater goby, Eucyclogobius newberryi, occurs in reproductively isolated populations along the California coast that exhibit tremendous variation in genetic div ...
... The fitness consequences of low genetic diversity in wild animal populations are of great concern to species conservation. The endangered tidewater goby, Eucyclogobius newberryi, occurs in reproductively isolated populations along the California coast that exhibit tremendous variation in genetic div ...
Understanding Our Environment
... different versions of same genes. Species Diversity - Measures number of different kinds of organisms within a community. Ecological Diversity - Measures richness and complexity of a community. ...
... different versions of same genes. Species Diversity - Measures number of different kinds of organisms within a community. Ecological Diversity - Measures richness and complexity of a community. ...
Canada Of lemmings and snowshoe hares: the
... Two population oscillations dominate terrestrial community dynamics in northern Canada. In the boreal forest, the snowshoe hare (Lepus americanus) fluctuates in cycles with an 8–10 year periodicity and in tundra regions lemmings typically fluctuate in cycles with a 3–4 year periodicity. I review 60 ...
... Two population oscillations dominate terrestrial community dynamics in northern Canada. In the boreal forest, the snowshoe hare (Lepus americanus) fluctuates in cycles with an 8–10 year periodicity and in tundra regions lemmings typically fluctuate in cycles with a 3–4 year periodicity. I review 60 ...
SPECIES-AREA RELATIONSHIPS SPECIES-AREA REL.ATIONSHIPS
... the predicted values across all the habitat units gave the expected number of species for an island. This expectation was compared to the predictions from a simple species-area regression that ignored habitats. For 17 of the 22 islands, the predictions of the habitat unit model were superior to thos ...
... the predicted values across all the habitat units gave the expected number of species for an island. This expectation was compared to the predictions from a simple species-area regression that ignored habitats. For 17 of the 22 islands, the predictions of the habitat unit model were superior to thos ...
Keystone Predator
... Ecosystems can also be represented by a pyramid comprising a series of “trophic levels”. A species’ trophic level indicates its relative position in the ecosystem’s food chain. Producers (including algae and green plants) use energy from the sun to produce their own food rather than consuming other ...
... Ecosystems can also be represented by a pyramid comprising a series of “trophic levels”. A species’ trophic level indicates its relative position in the ecosystem’s food chain. Producers (including algae and green plants) use energy from the sun to produce their own food rather than consuming other ...
Fulltext PDF - Indian Academy of Sciences
... be more ecologically successful and have a greater geographical distribution than do non-weed species, and are more common and abundant within their distribution zones. In many areas of their distribution range, they also resort to crop and kitchen raiding, leading to conflict situations that result ...
... be more ecologically successful and have a greater geographical distribution than do non-weed species, and are more common and abundant within their distribution zones. In many areas of their distribution range, they also resort to crop and kitchen raiding, leading to conflict situations that result ...
PDF - Biotechnology for Biofuels
... biofuel production than others. Differences in the organization of primary carbon metabolism between species likely reflect differences in efficiencies in processing carbon, which relates to factors controlling their productivity. Understanding the dissimilarities amongst microalgae will help elucid ...
... biofuel production than others. Differences in the organization of primary carbon metabolism between species likely reflect differences in efficiencies in processing carbon, which relates to factors controlling their productivity. Understanding the dissimilarities amongst microalgae will help elucid ...
Morphology and Dispersal of One- and Two
... DIscuSSION-One- and two-seeded diaspores of C. flava differ in mass and rate of descent, traits that should affect their dispersal potential, yet no differences were detected in the dispersal distances of calyces containing 1, 2, or 0 seeds in the field. There are at least two possible explanations ...
... DIscuSSION-One- and two-seeded diaspores of C. flava differ in mass and rate of descent, traits that should affect their dispersal potential, yet no differences were detected in the dispersal distances of calyces containing 1, 2, or 0 seeds in the field. There are at least two possible explanations ...
The importance of coarse woody debris for bryophyte vegetation of
... on this substrate (Paper V). On 200 beech logs in two old-growth beech-fir forests in Slovenia, 102 log inhabiting species were found (Ódor and van Dort, unpublished data). Because the availability and continuity of this substrate dramatically decreased in managed landscape (Söderström and Jonsson 1 ...
... on this substrate (Paper V). On 200 beech logs in two old-growth beech-fir forests in Slovenia, 102 log inhabiting species were found (Ódor and van Dort, unpublished data). Because the availability and continuity of this substrate dramatically decreased in managed landscape (Söderström and Jonsson 1 ...
Understanding Our Environment
... different versions of same genes. Species Diversity - Measures number of different kinds of organisms within a community. Ecological Diversity - Measures richness and complexity of a community. ...
... different versions of same genes. Species Diversity - Measures number of different kinds of organisms within a community. Ecological Diversity - Measures richness and complexity of a community. ...
Wolf diet and its impact on the ungulates community in a new
... The results presented in this study confirm wild ungulates as staple prey of wolves. The food niche breadth index calculated for the wolf pack ranged from 1.77 and 2.93 (min-max). These values were comparable to the results obtained by several studies carried out in Europe (Kübersepp & Valdmann 2003 ...
... The results presented in this study confirm wild ungulates as staple prey of wolves. The food niche breadth index calculated for the wolf pack ranged from 1.77 and 2.93 (min-max). These values were comparable to the results obtained by several studies carried out in Europe (Kübersepp & Valdmann 2003 ...
Proposed Listing, Special 4(d) Rule, and Critical Habitat Bi
... wilderness, reserve, preserve or other conservation area. It does not allow government or public access to private lands. Will the Bi-State DPS of greater sage-grouse only be protected in places where critical habitat is designated? No. All other protections afforded by the ESA apply both on and off ...
... wilderness, reserve, preserve or other conservation area. It does not allow government or public access to private lands. Will the Bi-State DPS of greater sage-grouse only be protected in places where critical habitat is designated? No. All other protections afforded by the ESA apply both on and off ...
Experimentally assessing the relative
... Figure 2 | Left panels show mean values (6 1 s.e.m.) of selection gradients measured in two replicates across each of three predation treatments. Right panels show mean values (61 s.e.m.) of selection gradients measured at low and high population densities (Supplementary Fig. 2 shows regressions of ...
... Figure 2 | Left panels show mean values (6 1 s.e.m.) of selection gradients measured in two replicates across each of three predation treatments. Right panels show mean values (61 s.e.m.) of selection gradients measured at low and high population densities (Supplementary Fig. 2 shows regressions of ...
Diversity and Distributions
... species with non-overlapping niches in time or space are more likely to co-exist (Chase & Leibold, 2003), and if species niches have been conserved during evolutionary history, then successful invaders should exhibit a particular phylogenetic position relative to native communities. A number of rece ...
... species with non-overlapping niches in time or space are more likely to co-exist (Chase & Leibold, 2003), and if species niches have been conserved during evolutionary history, then successful invaders should exhibit a particular phylogenetic position relative to native communities. A number of rece ...
Toward a Better Integration of Ecological
... increasingly recognize that global change research requires that we work at the nexus of biological and physical systems to solve many of the world’s most pressing environmental problems. Therefore, an increasing number of interdisciplinary fields are rapidly evolving—fields such as ecogeo morpholo ...
... increasingly recognize that global change research requires that we work at the nexus of biological and physical systems to solve many of the world’s most pressing environmental problems. Therefore, an increasing number of interdisciplinary fields are rapidly evolving—fields such as ecogeo morpholo ...
AVP AVPR1a
... identified that differentiated monogamous vs. non-monogamous NWM, although only one non-monogamous genus (Saimiri) was included in this study, and the sample was limited to only four of 17 genera that comprise the NWM. In the present paper, we explore variation in the coding regions of AVP/AVPR1a ac ...
... identified that differentiated monogamous vs. non-monogamous NWM, although only one non-monogamous genus (Saimiri) was included in this study, and the sample was limited to only four of 17 genera that comprise the NWM. In the present paper, we explore variation in the coding regions of AVP/AVPR1a ac ...