evidence indicating independent assortment of
... by comparing any two sets to see at which positions they differ from one another (32). If the amino acid in any set differed from the prototype at a given position and if this involved a two base change, this is indicated by an asterisk (*). If the differences involved deletions or insertions or whe ...
... by comparing any two sets to see at which positions they differ from one another (32). If the amino acid in any set differed from the prototype at a given position and if this involved a two base change, this is indicated by an asterisk (*). If the differences involved deletions or insertions or whe ...
Beavers and biodiversity: the ethics of ecological restoration
... reintroduction (see Table 1). The first, which we call the wise-use attitude, has not been prominent in this particular debate. It is rooted in Pinchotian conservationism and represents an essentially anthropocentric ethical outlook, stressing the value of nature’s use. According to this position, a ...
... reintroduction (see Table 1). The first, which we call the wise-use attitude, has not been prominent in this particular debate. It is rooted in Pinchotian conservationism and represents an essentially anthropocentric ethical outlook, stressing the value of nature’s use. According to this position, a ...
Parks Conservation and Lands - Commissioner for Sustainability
... and national parks (Fletcher 2006a, 2007a) where regular shooting does not occur. Because eastern grey kangaroos comprise almost the all of the herbivore trophic level for ...
... and national parks (Fletcher 2006a, 2007a) where regular shooting does not occur. Because eastern grey kangaroos comprise almost the all of the herbivore trophic level for ...
Biodiversity and Ecosystem Functioning Further
... evidence then available. For the second printing of his book, May (1974) added an alternative resolution to the debate—that ecosystem properties could be more stable at higher diversity even as population stability was lower. This possibility, however, was generally overlooked for two decades. Ecolo ...
... evidence then available. For the second printing of his book, May (1974) added an alternative resolution to the debate—that ecosystem properties could be more stable at higher diversity even as population stability was lower. This possibility, however, was generally overlooked for two decades. Ecolo ...
SPECIES ASSESSMENT FOR GREAT BASIN SPADEFOOT TOAD
... The Great Basin spadefoot toad (Spea intermontana) is currently recognized by the Canadian government as a threatened species. In addition, some state agencies throughout its range recognize S. intermontana as a sensitive species, often because too little is known about it to provide evaluations on ...
... The Great Basin spadefoot toad (Spea intermontana) is currently recognized by the Canadian government as a threatened species. In addition, some state agencies throughout its range recognize S. intermontana as a sensitive species, often because too little is known about it to provide evaluations on ...
Ecological effects of invasive alien insects
... different levels of biological organisation: genetic effects; effects on individuals, populations or communities of species; and effects on ecosystem processes (Parker et al. 1999). It can also occur at different spatial scales, from microhabitat to landscape (Williamson 1996). Parker et al. (1999) ...
... different levels of biological organisation: genetic effects; effects on individuals, populations or communities of species; and effects on ecosystem processes (Parker et al. 1999). It can also occur at different spatial scales, from microhabitat to landscape (Williamson 1996). Parker et al. (1999) ...
community
... • The competitive exclusion principle states that two species competing for the same limiting resources cannot coexist in the same place – One species will be more efficient and thus reproduce more rapidly than the other. This will eventually lead to the local elimination of the inferior competitor. ...
... • The competitive exclusion principle states that two species competing for the same limiting resources cannot coexist in the same place – One species will be more efficient and thus reproduce more rapidly than the other. This will eventually lead to the local elimination of the inferior competitor. ...
Olden et al. 2011 rusties
... Abstract. Despite the widespread introduction of nonnative species and the heterogeneity of ecosystems in their sensitivity to ecological impacts, few studies have assessed ecosystem vulnerability to the entire invasion process, from arrival to establishment and impacts. Our study addresses this cha ...
... Abstract. Despite the widespread introduction of nonnative species and the heterogeneity of ecosystems in their sensitivity to ecological impacts, few studies have assessed ecosystem vulnerability to the entire invasion process, from arrival to establishment and impacts. Our study addresses this cha ...
community
... • The competitive exclusion principle states that two species competing for the same limiting resources cannot coexist in the same place – One species will be more efficient and thus reproduce more rapidly than the other. This will eventually lead to the local elimination of the inferior competitor. ...
... • The competitive exclusion principle states that two species competing for the same limiting resources cannot coexist in the same place – One species will be more efficient and thus reproduce more rapidly than the other. This will eventually lead to the local elimination of the inferior competitor. ...
Return of the Vultures
... Zoology in Cambridge has focused on identifying the causes of this rapid decline as well as developing coordinated, international conservation solutions to try to stabilise and eventually recover vulture populations before it is too late. ...
... Zoology in Cambridge has focused on identifying the causes of this rapid decline as well as developing coordinated, international conservation solutions to try to stabilise and eventually recover vulture populations before it is too late. ...
PDF
... that 28% of global wealth is contained in ecosystems, which is certainly a lower bound (UNUIHDP and UNEP 2014). Wealth accounting (e.g., inclusive/comprehensive/genuine wealth) is a rigorous economic paradigm for measuring sustainability, but the difficulty of measuring prices of natural capital has ...
... that 28% of global wealth is contained in ecosystems, which is certainly a lower bound (UNUIHDP and UNEP 2014). Wealth accounting (e.g., inclusive/comprehensive/genuine wealth) is a rigorous economic paradigm for measuring sustainability, but the difficulty of measuring prices of natural capital has ...
Research Project Final Report
... species for seed oil fatty acid profile and seed oil content. Natural variation for seed oil fatty acid profile and content was demonstrated by analysing the seed oil of 10 seeds of each of the gene bank accessions used to make the diversity sets for cultivated forms of Brassica, oleracea and 14 rel ...
... species for seed oil fatty acid profile and seed oil content. Natural variation for seed oil fatty acid profile and content was demonstrated by analysing the seed oil of 10 seeds of each of the gene bank accessions used to make the diversity sets for cultivated forms of Brassica, oleracea and 14 rel ...
ecological opportunity and phenotypic plasticity
... competition between species). Because ecological character displacement generates new populations that differ in resource use, this process should only occur when exploitable resources are available. We tested this hypothesis in two species of spadefoot toads ( Spea bombifrons and S. multiplicata) w ...
... competition between species). Because ecological character displacement generates new populations that differ in resource use, this process should only occur when exploitable resources are available. We tested this hypothesis in two species of spadefoot toads ( Spea bombifrons and S. multiplicata) w ...
Functional traits, productivity and effects on nitrogen
... separated into fine roots (<2 mm) and coarse belowground biomass (roots and rhizomes >2 mm, crowns, corms) (124 125). All biomass was dried at 60 °C for a minimum of 96 h, weighed, and ground in a Wiley mill. Roots from the July harvest were composited 0–20, 20–40 and 40–100 cm and then ground. Tiss ...
... separated into fine roots (<2 mm) and coarse belowground biomass (roots and rhizomes >2 mm, crowns, corms) (124 125). All biomass was dried at 60 °C for a minimum of 96 h, weighed, and ground in a Wiley mill. Roots from the July harvest were composited 0–20, 20–40 and 40–100 cm and then ground. Tiss ...
Land use vs. fragment size and isolation as determinants
... et al., 2006; Kupfer et al., 2006). The type of matrix and its effects have received considerable more attention (Driscoll, 2004; Manning et al., 2004; Kupfer et al., 2006; Umetsu et al, 2008). Several studies have described how populations in forest fragments are influenced by the surrounding matrix ...
... et al., 2006; Kupfer et al., 2006). The type of matrix and its effects have received considerable more attention (Driscoll, 2004; Manning et al., 2004; Kupfer et al., 2006; Umetsu et al, 2008). Several studies have described how populations in forest fragments are influenced by the surrounding matrix ...
Effect of abiotic factors on reproduction in the centre and periphery
... relationship between weather and reproduction should be dissimilar for species which are in the centre of their breeding range and those that are near the edge. We tested this hypothesis on two sympatric ground-nesting raptors, the hen harrier Circus cyaneus and the Montagu’s harrier Circus pygargus ...
... relationship between weather and reproduction should be dissimilar for species which are in the centre of their breeding range and those that are near the edge. We tested this hypothesis on two sympatric ground-nesting raptors, the hen harrier Circus cyaneus and the Montagu’s harrier Circus pygargus ...
Conservation of Wildlife Populations
... a difference) in a frequentist statistical test Probability of Type II error (falsely concluding no difference) in a frequentist statistical test Instantaneous change in population size over tiny time interval; also yield or recruitment in harvest models. Apparent survival (does not separate death f ...
... a difference) in a frequentist statistical test Probability of Type II error (falsely concluding no difference) in a frequentist statistical test Instantaneous change in population size over tiny time interval; also yield or recruitment in harvest models. Apparent survival (does not separate death f ...
Biodiversity and Ecosystem Functioning - annurev-ecolsys
... evidence then available. For the second printing of his book, May (1974) added an alternative resolution to the debate—that ecosystem properties could be more stable at higher diversity even as population stability was lower. This possibility, however, was generally overlooked for two decades. Ecolo ...
... evidence then available. For the second printing of his book, May (1974) added an alternative resolution to the debate—that ecosystem properties could be more stable at higher diversity even as population stability was lower. This possibility, however, was generally overlooked for two decades. Ecolo ...
Background - Sacramento - California State University
... Metacommunity ecology is an emerging discipline (Liebold et al. 2004; Chase 2005) based on previous empirical studies (Ricklefs 1987; Robinson and Dickerson 1987; Cornell and Lawton 1992; Belyea and Lancaster 1999; Shurin 2000; Chave 2004; Fukami 2004; Ricklefs 2004) which recognize the interaction ...
... Metacommunity ecology is an emerging discipline (Liebold et al. 2004; Chase 2005) based on previous empirical studies (Ricklefs 1987; Robinson and Dickerson 1987; Cornell and Lawton 1992; Belyea and Lancaster 1999; Shurin 2000; Chave 2004; Fukami 2004; Ricklefs 2004) which recognize the interaction ...
Mutualisms in a changing world: an evolutionary
... becomes limiting. Is this simply a phenotypic shift, or are extreme weather patterns driving selection in this endophyte? Shifts to antagonism could be solely phenotypic, with drought episodes causing morphological and physiological changes that increase pathogenicity. Alternatively, shifts to antag ...
... becomes limiting. Is this simply a phenotypic shift, or are extreme weather patterns driving selection in this endophyte? Shifts to antagonism could be solely phenotypic, with drought episodes causing morphological and physiological changes that increase pathogenicity. Alternatively, shifts to antag ...
Methods to control and eradicate non
... Borges & Serôdio, 1991; Zino, Heredia & Biscoito, 1995a). In such cases, a sample must be taken in order to establish a captive population. ...
... Borges & Serôdio, 1991; Zino, Heredia & Biscoito, 1995a). In such cases, a sample must be taken in order to establish a captive population. ...
Diversity and ecosystem functioning: Litter decomposition
... Another approach was used to examine additive and nonadditive effects of species loss following the method suggested by Ball et al. (2008). For this, a GLM (type I) sum of squares with litter disappearance as the dependent variable was used. We sequentially included time, block and the presence/abse ...
... Another approach was used to examine additive and nonadditive effects of species loss following the method suggested by Ball et al. (2008). For this, a GLM (type I) sum of squares with litter disappearance as the dependent variable was used. We sequentially included time, block and the presence/abse ...
Guidelines for managing the endangered Growling Grass Frog in
... The Growling Grass Frog (Litoria raniformis) is a large, semi-aquatic tree-frog that is distributed widely across southern Australia, including eastern South Australia, Victoria, Tasmania, southern New South Wales and (formerly) the Australian Capital Territory. Despite being once widespread and abu ...
... The Growling Grass Frog (Litoria raniformis) is a large, semi-aquatic tree-frog that is distributed widely across southern Australia, including eastern South Australia, Victoria, Tasmania, southern New South Wales and (formerly) the Australian Capital Territory. Despite being once widespread and abu ...
The Diverse Impacts of Nonnative Species on Amphibians
... Fig. 1. The potential consequences of a nonnative species being introduced into an ecosystem that includes native amphibian species. Known invasion outcomes are presented across the top of the figure. The long term effects of a nonnative invasion are played out through time under each outcome. ...
... Fig. 1. The potential consequences of a nonnative species being introduced into an ecosystem that includes native amphibian species. Known invasion outcomes are presented across the top of the figure. The long term effects of a nonnative invasion are played out through time under each outcome. ...
PDF
... different intensities of key ecological interactions (predation and competition) between dinosaur and mammal communities, to assess how these differences influenced their respective body massspecies richness (M-S) distributions, and extinction patterns. We simulate communities comprising size-struct ...
... different intensities of key ecological interactions (predation and competition) between dinosaur and mammal communities, to assess how these differences influenced their respective body massspecies richness (M-S) distributions, and extinction patterns. We simulate communities comprising size-struct ...