The Evolution and
... Succession can also be . . . Secondary succession – this occurs where a community is disturbed but not completely destroyed; it has some soil and life remaining. For instance, after most forest fires, or in an abandoned farm field, or after a really bad storm surge from a hurricane, and like what h ...
... Succession can also be . . . Secondary succession – this occurs where a community is disturbed but not completely destroyed; it has some soil and life remaining. For instance, after most forest fires, or in an abandoned farm field, or after a really bad storm surge from a hurricane, and like what h ...
Corynorhinus rafinesquii
... including removal of hollow cull trees. Apparent rarity might be the result of few observations or collections of foraging bats due to their highly nocturnal nature. Recent surveys revealed many more locations than had previously been reported and extended the known range into the upper coastal plai ...
... including removal of hollow cull trees. Apparent rarity might be the result of few observations or collections of foraging bats due to their highly nocturnal nature. Recent surveys revealed many more locations than had previously been reported and extended the known range into the upper coastal plai ...
Threatened Species Assessment Guidelines
... EP&A Act). The NSW legislation website (www.legislation.nsw.gov.au/) provides the most up-to-date information on what is listed in the schedules. To assist the assessment process, the Department of Environment and Climate Change NSW (DECC)∗ and the NSW Department of Primary Industries (DPI) have pre ...
... EP&A Act). The NSW legislation website (www.legislation.nsw.gov.au/) provides the most up-to-date information on what is listed in the schedules. To assist the assessment process, the Department of Environment and Climate Change NSW (DECC)∗ and the NSW Department of Primary Industries (DPI) have pre ...
Multivariate characterisation of the habitats of seven species of
... taxa present higher degrees of terrestriality (adaptation to the terrestrial environment), suggesting an increase in adaptation at each cladogenetic event (ESM, S1). In accordance with this scenario, sympatric mudskipper species of different genera are generally found in different habitats in the in ...
... taxa present higher degrees of terrestriality (adaptation to the terrestrial environment), suggesting an increase in adaptation at each cladogenetic event (ESM, S1). In accordance with this scenario, sympatric mudskipper species of different genera are generally found in different habitats in the in ...
Land to the West of Uttoxeter Breeding Bird Survey Report
... particularly to the north, and encourage the colonisation into other parts. It is recommended that ash and a mix of fruit bearing species are included within the new planting scheme to provide further foraging opportunities for bullfinch. Further woodland planting will continue to provide sufficient ...
... particularly to the north, and encourage the colonisation into other parts. It is recommended that ash and a mix of fruit bearing species are included within the new planting scheme to provide further foraging opportunities for bullfinch. Further woodland planting will continue to provide sufficient ...
Species number, species abundance and body
... the upper tail of this distribution (quantitative theoretical predictions about the shape of the full distribution have not been made). Following May (1978) we have therefore fitted a regression line to the upper (right-hand) part of the distribution (taking the mid-point of each size class on the a ...
... the upper tail of this distribution (quantitative theoretical predictions about the shape of the full distribution have not been made). Following May (1978) we have therefore fitted a regression line to the upper (right-hand) part of the distribution (taking the mid-point of each size class on the a ...
Decision Making for Food Choice by Grasshoppers
... 1999), one can assume that grass-feeding grasshoppers are oligophagous and therefore relatively specialist species. In Limousin, the heathlands correspond to ecological islands (Brugel et al. 2001). Thus, for species using food resources that are limited and patchy, the distance between these bush f ...
... 1999), one can assume that grass-feeding grasshoppers are oligophagous and therefore relatively specialist species. In Limousin, the heathlands correspond to ecological islands (Brugel et al. 2001). Thus, for species using food resources that are limited and patchy, the distance between these bush f ...
Species detection using environmental DNA from water samples
... We showed that environmental DNA (either in solution or in cellular debris) can be used to ascertain species presence in a wetland, and that this technique is able to discriminate between absence and presence, even at low densities. As the environment can retain the molecular imprint of inhabiting s ...
... We showed that environmental DNA (either in solution or in cellular debris) can be used to ascertain species presence in a wetland, and that this technique is able to discriminate between absence and presence, even at low densities. As the environment can retain the molecular imprint of inhabiting s ...
PDF - Northern Research Station
... goods: restoration connotes life and putting back in order to make ecosystems whole again, yet invasive species management is by and large an activity of death and taking away (Gobster, 2005). But most people have no compunction about swatting flies in their house or plucking dandelions from their y ...
... goods: restoration connotes life and putting back in order to make ecosystems whole again, yet invasive species management is by and large an activity of death and taking away (Gobster, 2005). But most people have no compunction about swatting flies in their house or plucking dandelions from their y ...
Action Plan for the Brush-tailed Rock-wallaby
... average of 1.2 young per year over their reproductive period, around 2-10 years of age (Taggart et al. 1997). Hazlitt et al. (2004) found that the species forms female based family groups that are closely related and usually number between 4-10 animals. They form close, polygynous bonds with a singl ...
... average of 1.2 young per year over their reproductive period, around 2-10 years of age (Taggart et al. 1997). Hazlitt et al. (2004) found that the species forms female based family groups that are closely related and usually number between 4-10 animals. They form close, polygynous bonds with a singl ...
Indicator Fact Sheet - European Environment Agency
... Although studies have been carried out to examine the effect on non-target populations through direct mortality (e.g. Pope et al., 2000), there is no comprehensive data set for assessing the problem in the EEA area. Most data exist on target populations but this can be used as an indicator of biolog ...
... Although studies have been carried out to examine the effect on non-target populations through direct mortality (e.g. Pope et al., 2000), there is no comprehensive data set for assessing the problem in the EEA area. Most data exist on target populations but this can be used as an indicator of biolog ...
Arctic lemmings: keystone species in a changing environment.
... in northern Europe and Greenland, coincident with an increase in temperature. It is crucial to gather and analyze comparable data on the population dynamics of lemmings in northern Canada. Understanding whether ongoing climate change will affect lemming population dynamics and their use of habitat i ...
... in northern Europe and Greenland, coincident with an increase in temperature. It is crucial to gather and analyze comparable data on the population dynamics of lemmings in northern Canada. Understanding whether ongoing climate change will affect lemming population dynamics and their use of habitat i ...
Insect Conservation and Diversity
... turtle watch, bird counts in Britain and North America, etc. ...
... turtle watch, bird counts in Britain and North America, etc. ...
Ecology
... roots more often on bare ground and that P. lucida grows more often in association with F. orthophylla than would be expected. In testing for abiotic associations, we observed that both a tree, Polylepis tarapacana [Rosaceae], and a cactus, Tephrocactus ignescens [Cactaceae], showed positive abiotic ...
... roots more often on bare ground and that P. lucida grows more often in association with F. orthophylla than would be expected. In testing for abiotic associations, we observed that both a tree, Polylepis tarapacana [Rosaceae], and a cactus, Tephrocactus ignescens [Cactaceae], showed positive abiotic ...
Waterbirds of Baie de Baly, Madagascar
... waders, but numbers were very low compared with those visiting mainland African wetlands. Only one species, the Crab Plover Dromas ardeola, occurred in numbers over their 1% population threshold. The Pacific Golden Plover Pluvialis fulva is considered as a vagrant species in Madagascar (Goodman & Be ...
... waders, but numbers were very low compared with those visiting mainland African wetlands. Only one species, the Crab Plover Dromas ardeola, occurred in numbers over their 1% population threshold. The Pacific Golden Plover Pluvialis fulva is considered as a vagrant species in Madagascar (Goodman & Be ...
Pattern, process, and consequences of rarity
... been analyzed and debated since Darwin (1859) who suggested that rarity was a compulsory precursor to extinction. Contrary to popular belief, rarity is the norm rather than the exception (Preston 1948), yet identifying why some species are common and others are not has been an ongoing challenge. Whi ...
... been analyzed and debated since Darwin (1859) who suggested that rarity was a compulsory precursor to extinction. Contrary to popular belief, rarity is the norm rather than the exception (Preston 1948), yet identifying why some species are common and others are not has been an ongoing challenge. Whi ...
Global Amphibian Declines: What Have We Done? Outline
... Animal Behaviour 74: 1765-1776, Conservation Biology 19:2004-2008, Biological Conservation 138: 399-411 ...
... Animal Behaviour 74: 1765-1776, Conservation Biology 19:2004-2008, Biological Conservation 138: 399-411 ...
Ecological Kinds and Ecological Laws
... above generalizations. Instead, they seek to explain them. In order to do so, they invoke two lawlike generalizations – generalizations that do not refer to particular biological taxa, or to any other historical kinds: 1) Among food webs in which the consumer species require particular food species ...
... above generalizations. Instead, they seek to explain them. In order to do so, they invoke two lawlike generalizations – generalizations that do not refer to particular biological taxa, or to any other historical kinds: 1) Among food webs in which the consumer species require particular food species ...
Fish and Wildlife Service Director`s Report
... Gulf sturgeon, fat threeridge mussel and the purple bankclimber mussel, which are listed as endangered or threatened under the ESA. The FWS issued a biological opinion (BO) in a compressed timeframe that the continued existence of the three species would not be jeopardized nor their critical habitat ...
... Gulf sturgeon, fat threeridge mussel and the purple bankclimber mussel, which are listed as endangered or threatened under the ESA. The FWS issued a biological opinion (BO) in a compressed timeframe that the continued existence of the three species would not be jeopardized nor their critical habitat ...
Exotic grass and forb control in a California grassland - Cal-IPC
... Non-natives in California Grasslands • Non-native grasses arrived about 250 years ago • Pre-invasion plant community unknown • Non-native grasses compete with and displace native plant species. ...
... Non-natives in California Grasslands • Non-native grasses arrived about 250 years ago • Pre-invasion plant community unknown • Non-native grasses compete with and displace native plant species. ...
factsheet - GB non-native species secretariat
... Data from France indicate that populations spread relatively slowly, at rates of 200–250 metres per year, at least in the first decades after introduction. The related American species is known to cross open areas up to 400 m wide and to use hedgerows as corridors linking more distant patches of hab ...
... Data from France indicate that populations spread relatively slowly, at rates of 200–250 metres per year, at least in the first decades after introduction. The related American species is known to cross open areas up to 400 m wide and to use hedgerows as corridors linking more distant patches of hab ...
Ecological and evolutionary insights from species invasions
... exotic to a place if it has been introduced or has otherwise become established there because of human activities. We focus on exotic species in well-studied groups (plants, vertebrates, and marine invertebrates) that have become established during the past few hundred years. Ecological systems rare ...
... exotic to a place if it has been introduced or has otherwise become established there because of human activities. We focus on exotic species in well-studied groups (plants, vertebrates, and marine invertebrates) that have become established during the past few hundred years. Ecological systems rare ...
Tiny ecosystem engineers: diversity and evolution of gall
... coevolutionary processes between them and Dr. Netta Dorchin and collaborators employed ...
... coevolutionary processes between them and Dr. Netta Dorchin and collaborators employed ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.