SPATIAL VARIATION IN TREE SPECIES COMPOSITION ACROSS
... Species are but one way of measuring biodiversity. This implicitly assumes that all species are independent units. Any evolutionary biologist knows that this is far from true: species are organized according to a definite structure, and this structure is defined by their evolutionary history. Indeed ...
... Species are but one way of measuring biodiversity. This implicitly assumes that all species are independent units. Any evolutionary biologist knows that this is far from true: species are organized according to a definite structure, and this structure is defined by their evolutionary history. Indeed ...
Distributional Ecology of New Guinea Birds
... As indicated by frequent references understood.New Guinea has served as because each island represents a sepain the syntheses of zoogeography by the birdcolonizationsourcefor the thou- rate experiment, and because most inWallace;(l), of evolution by Mayr (2), sands of islandsof the southwestPacific; ...
... As indicated by frequent references understood.New Guinea has served as because each island represents a sepain the syntheses of zoogeography by the birdcolonizationsourcefor the thou- rate experiment, and because most inWallace;(l), of evolution by Mayr (2), sands of islandsof the southwestPacific; ...
Table S2 - Biodiversity Journal Club
... Shkedy Y. & Safriel U.N. (1992). Niche breadth of two lark species in the desert and the size of their geographical ranges. Ornis Scandinavica, 23, 89-95. Southward A.J. (1958). Note on the temperature tolerances of some intertidal animals in relation to environmental temperatures and geographical d ...
... Shkedy Y. & Safriel U.N. (1992). Niche breadth of two lark species in the desert and the size of their geographical ranges. Ornis Scandinavica, 23, 89-95. Southward A.J. (1958). Note on the temperature tolerances of some intertidal animals in relation to environmental temperatures and geographical d ...
The Bronte-Coogee Aquatic Reserve is located on the NSW coast
... coverage and was the only species present in all four quadrats (Figure 4). Other than that, there were no distinguishable patterns in the distribution of vegetation within the quadrats. No invertebrates were found during the quadrat surveys on sandy beaches (with the exception of one dead blue bottl ...
... coverage and was the only species present in all four quadrats (Figure 4). Other than that, there were no distinguishable patterns in the distribution of vegetation within the quadrats. No invertebrates were found during the quadrat surveys on sandy beaches (with the exception of one dead blue bottl ...
Activity (Teacher Verison) PDF
... There are more than 800 species of Hawaiian Drosophila. They are a premier example of adaptive radiation. Drosophila species now occupy a range of habitats. Different species feed on different food items, including rotting fruit and leaves, tree sap, and fungi. About 100 of the Hawaiian Drosop ...
... There are more than 800 species of Hawaiian Drosophila. They are a premier example of adaptive radiation. Drosophila species now occupy a range of habitats. Different species feed on different food items, including rotting fruit and leaves, tree sap, and fungi. About 100 of the Hawaiian Drosop ...
untitled - digital-csic Digital CSIC
... et al., 2008). The consequences of fragmentation for the genetic structure of plant populations arise from the interplay of two components: (1) the functional attributes, or life history traits, of the species in question and (2) the actual landscape context. Both influence the effective size and th ...
... et al., 2008). The consequences of fragmentation for the genetic structure of plant populations arise from the interplay of two components: (1) the functional attributes, or life history traits, of the species in question and (2) the actual landscape context. Both influence the effective size and th ...
Pseudalopex fulvipes, Darwin`s Fox
... southern shore of the same island. On the Pacific shore of Chiloé, the species has been trapped on Playa Tricolor (in June 1999, J.E. Jiménez, pers. obs.) and intensively monitored since November 2001 at Ahuenco; on the Cordillera del Piuché, the fox has been monitored since 1989 (Jiménez et al. 199 ...
... southern shore of the same island. On the Pacific shore of Chiloé, the species has been trapped on Playa Tricolor (in June 1999, J.E. Jiménez, pers. obs.) and intensively monitored since November 2001 at Ahuenco; on the Cordillera del Piuché, the fox has been monitored since 1989 (Jiménez et al. 199 ...
America`s Least Wanted: Alien Species
... species—non-native plants and animals introduced into this country either intentionally or by accident. Attention to the problem of alien, or exotic, species often centers on their costs to agriculture, ranching, forestry, and industry. The price they exact on the nation’s forests, grasslands, and w ...
... species—non-native plants and animals introduced into this country either intentionally or by accident. Attention to the problem of alien, or exotic, species often centers on their costs to agriculture, ranching, forestry, and industry. The price they exact on the nation’s forests, grasslands, and w ...
How many bird extinctions have we prevented?
... To identify those species for which conservation may have prevented extinction during 1994–2004 we drew up a list of candidates by examining information on all 168 species classified as Critically Endangered in 1994, plus 73 species that would have qualified had current information been available th ...
... To identify those species for which conservation may have prevented extinction during 1994–2004 we drew up a list of candidates by examining information on all 168 species classified as Critically Endangered in 1994, plus 73 species that would have qualified had current information been available th ...
A feeding record of the Short-tailed Hawk Buteo
... The Short-tailed Hawk Buteo brachyurus occurs from south USA through Central America, and south to northern Argentina and Chile (Thiollay 1994). This species is found to be uncommon, although widespread in large areas of South America (Robinson 1994, Manosa et al. 2003, Blendinger et al. 2004). Bute ...
... The Short-tailed Hawk Buteo brachyurus occurs from south USA through Central America, and south to northern Argentina and Chile (Thiollay 1994). This species is found to be uncommon, although widespread in large areas of South America (Robinson 1994, Manosa et al. 2003, Blendinger et al. 2004). Bute ...
Illumination–size relationships of 109 coexisting
... groups, of which the smaller (21 species, including most pioneers) is generally better exposed. 5 Relative illumination rankings amongst species are significantly maintained over a wide range of stem sizes. Species that are well exposed at small diameters are therefore also more likely to be well ex ...
... groups, of which the smaller (21 species, including most pioneers) is generally better exposed. 5 Relative illumination rankings amongst species are significantly maintained over a wide range of stem sizes. Species that are well exposed at small diameters are therefore also more likely to be well ex ...
Evolutionary consequences of changes in species` geographical
... Phanerozoic (2), and have varied in amplitude among geographical areas and geological epochs. The mean duration of a species in the fossil record varies among taxa from about 1 to 30 million years (3), implying that they possess properties that allow them to survive many Milankovitch oscillations. M ...
... Phanerozoic (2), and have varied in amplitude among geographical areas and geological epochs. The mean duration of a species in the fossil record varies among taxa from about 1 to 30 million years (3), implying that they possess properties that allow them to survive many Milankovitch oscillations. M ...
Evolutionary consequences of changes in species` geographical
... Phanerozoic (2), and have varied in amplitude among geographical areas and geological epochs. The mean duration of a species in the fossil record varies among taxa from about 1 to 30 million years (3), implying that they possess properties that allow them to survive many Milankovitch oscillations. M ...
... Phanerozoic (2), and have varied in amplitude among geographical areas and geological epochs. The mean duration of a species in the fossil record varies among taxa from about 1 to 30 million years (3), implying that they possess properties that allow them to survive many Milankovitch oscillations. M ...
Extinction, Colonization, and Metapopulations: Environmental
... could have played a significant part. This p r o p o r t i o n is about half for invertebrates and aquatic vertebrates and a quarter for terrestrial vertebrates (Table 1). In fact, stochasticity is important to far fewer species: in m a n y cases virtually the entire habitat was lost or modified, ca ...
... could have played a significant part. This p r o p o r t i o n is about half for invertebrates and aquatic vertebrates and a quarter for terrestrial vertebrates (Table 1). In fact, stochasticity is important to far fewer species: in m a n y cases virtually the entire habitat was lost or modified, ca ...
PDF - Oxford Academic - Oxford University Press
... predation by a closely related sister species. We quantified premating isolation and examined the sensory cues used to identify conspecifics in 2 sympatric species of pupfish (Cyprinodon) in 3 lakes in The Bahamas. We focused on the behavior of females, which choose mates and oviposit on lek-like te ...
... predation by a closely related sister species. We quantified premating isolation and examined the sensory cues used to identify conspecifics in 2 sympatric species of pupfish (Cyprinodon) in 3 lakes in The Bahamas. We focused on the behavior of females, which choose mates and oviposit on lek-like te ...
Regional adaptation improves the performance of grassland plant
... or regional plants and seeds mainly results from adaptation to factors such as climate, soil or land use (Macel et al. 2007; Raabova, Muenzbergova, & Fischer 2007). If plant species within one provenance are adapted to each other, this may also modify their interactions (Bischoff et al. 2006), which ...
... or regional plants and seeds mainly results from adaptation to factors such as climate, soil or land use (Macel et al. 2007; Raabova, Muenzbergova, & Fischer 2007). If plant species within one provenance are adapted to each other, this may also modify their interactions (Bischoff et al. 2006), which ...
Biotic modifiers, environmental modulation and species
... distribution models such modulation of the environment by biotic modifiers can be accounted for through modulation of specific environmental variables (e.g. temperature, T) by the modulator (e.g. forest, M), or by the presence of the biotic modifier (or engineering species, e.g. tree species). We in ...
... distribution models such modulation of the environment by biotic modifiers can be accounted for through modulation of specific environmental variables (e.g. temperature, T) by the modulator (e.g. forest, M), or by the presence of the biotic modifier (or engineering species, e.g. tree species). We in ...
Do cities export biodiversity? Traffic as dispersal vector
... We used two long (750 and 1050 m) motorway tunnels in Berlin, Germany, as sampling sites to insulate seed samples from other dispersal vectors than traffic. The tunnels are located on the same motorway leading from the inner city to the north-west outskirts of Berlin at a distance of 2 km from each ...
... We used two long (750 and 1050 m) motorway tunnels in Berlin, Germany, as sampling sites to insulate seed samples from other dispersal vectors than traffic. The tunnels are located on the same motorway leading from the inner city to the north-west outskirts of Berlin at a distance of 2 km from each ...
sympatric speciation
... • Individuals of two closely related sympatric cichlid species will not mate under normal light because females have specific color preferences and males differ in color. • However, under light conditions that de-emphasize color differences, females will mate with males of the other species and thi ...
... • Individuals of two closely related sympatric cichlid species will not mate under normal light because females have specific color preferences and males differ in color. • However, under light conditions that de-emphasize color differences, females will mate with males of the other species and thi ...
Alien marine species in Icelandic waters
... Cancer irroratus • Increase in sea temperature has made it possible for the larvae to develop – Takes ca 50 days at 10°C – Conditions are from Vestmannaeyjar to Eyjafjördur ...
... Cancer irroratus • Increase in sea temperature has made it possible for the larvae to develop – Takes ca 50 days at 10°C – Conditions are from Vestmannaeyjar to Eyjafjördur ...
Food Web Complexity and Species Diversity
... This procedure simplifies the data presentation though i t dodges the problem of taxonomic complexity. Wherever possible the data are presented a s both number observed being eaten and their caloric equivalent. The latter is based on prey s i z e recorded in the field and was converted by determinin ...
... This procedure simplifies the data presentation though i t dodges the problem of taxonomic complexity. Wherever possible the data are presented a s both number observed being eaten and their caloric equivalent. The latter is based on prey s i z e recorded in the field and was converted by determinin ...
Mr G Davidson
... Each species in a habitat or ecosystem has its own role to play and this role is called its niche, e.g. an owl would occupy the niche of “small mammal-eating bird of prey”. ...
... Each species in a habitat or ecosystem has its own role to play and this role is called its niche, e.g. an owl would occupy the niche of “small mammal-eating bird of prey”. ...
ThemeGallery PowerTemplate
... colonies increased by 71%. Where ants were excluded, rodents increased in both number and biomass. Where both were excluded, the number of seeds increased by 450%. ...
... colonies increased by 71%. Where ants were excluded, rodents increased in both number and biomass. Where both were excluded, the number of seeds increased by 450%. ...
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.