RESOURCE RESILIENCE, HUMAN NICHE CONSTRUCTION, AND
... Premier among the r-selected generalists that came to dominate the simplified Holocene ungulate guild of the eastern woodlands was the white-tailed deer (Odocoileus virginianus), which became the prey for human hunters in the region (Wolverton et al. 2008). In addition to their relatively large body ...
... Premier among the r-selected generalists that came to dominate the simplified Holocene ungulate guild of the eastern woodlands was the white-tailed deer (Odocoileus virginianus), which became the prey for human hunters in the region (Wolverton et al. 2008). In addition to their relatively large body ...
Biocontrol and Population Dynamics Theory
... home message: Laboratory studies of population dynamics frequently oversimplify. ...
... home message: Laboratory studies of population dynamics frequently oversimplify. ...
The Ecology of Place: Contributions of Place-Based
... and Wilson 1963). This is a pretty good law (description of a system’s behavior), as it has been shown to apply for both true oceanic islands and for habitat “islands” in a “sea” of other habitats. But the exponent (z) varies, usually between 0.20 and 0.35, so the law hardly qualifies as a universal ...
... and Wilson 1963). This is a pretty good law (description of a system’s behavior), as it has been shown to apply for both true oceanic islands and for habitat “islands” in a “sea” of other habitats. But the exponent (z) varies, usually between 0.20 and 0.35, so the law hardly qualifies as a universal ...
FOOD NICHE OVERLAP IN CO-EXISTING BARN OWL TYTO ALBA
... KEY WORDS: diet, Tyto alba, Bubo virginianus, intensively used farmland, food niche, Oregon One of the central concept in ecology is the competitive exclusion principle, which explain species coexistence. In general this concept forbids the coexistence of two species with identical or similar food n ...
... KEY WORDS: diet, Tyto alba, Bubo virginianus, intensively used farmland, food niche, Oregon One of the central concept in ecology is the competitive exclusion principle, which explain species coexistence. In general this concept forbids the coexistence of two species with identical or similar food n ...
(Araneae, Gnaphosidae) along the altitudinal gradient of
... (see historical review in Lomolino, 2001). These were later interpreted as the species-energy theory by Wright (1983). Recent researchers connected mountain ecology with the species–area relationship of island biogeography (MacArthur, 1972), because of the similar conditions prevailing for both type ...
... (see historical review in Lomolino, 2001). These were later interpreted as the species-energy theory by Wright (1983). Recent researchers connected mountain ecology with the species–area relationship of island biogeography (MacArthur, 1972), because of the similar conditions prevailing for both type ...
Terrestrial Fauna
... A changing climate may impact terrestrial fauna through changes in temperature and rainfall patterns, which will influence the distribution and diversity of species. The scale, rate and nature of projected change, and the interactions between a changing climate and other threatening processes will d ...
... A changing climate may impact terrestrial fauna through changes in temperature and rainfall patterns, which will influence the distribution and diversity of species. The scale, rate and nature of projected change, and the interactions between a changing climate and other threatening processes will d ...
Effect of abiotic factors on reproduction in the centre and periphery
... Explaining species distribution and the limits of geographic ranges is one of the main questions in ecology (Krebs 1985). Many studies have shown correlative relationships between the distribution or abundance of a given species and certain biotic or abiotic factors (e.g. Mehlman 1997), but these d ...
... Explaining species distribution and the limits of geographic ranges is one of the main questions in ecology (Krebs 1985). Many studies have shown correlative relationships between the distribution or abundance of a given species and certain biotic or abiotic factors (e.g. Mehlman 1997), but these d ...
A Game-Theoretic Model for Punctuated Equilibrium
... and so each successful mutation would lead to a new species. Although this is an important extreme, we are more interested in modelling invasion both within existing species as well as through the appearance of new species. Since, from our point of view of asexual populations, individuals only differ ...
... and so each successful mutation would lead to a new species. Although this is an important extreme, we are more interested in modelling invasion both within existing species as well as through the appearance of new species. Since, from our point of view of asexual populations, individuals only differ ...
poster michael humboldt nuevo logo
... The hake size structure was based on the population size structure estimated from the length frequencies recorded at each trawl station. The length frequency sample of each trawl was weighted to the total hake catch of the trawl, to the stratum, to the sub-area and finally to the total covered area ...
... The hake size structure was based on the population size structure estimated from the length frequencies recorded at each trawl station. The length frequency sample of each trawl was weighted to the total hake catch of the trawl, to the stratum, to the sub-area and finally to the total covered area ...
PDF
... the victim species tries to avoid interference competition by segregating along the spatial ecological axis, using different areas or (macro) habitats to successfully avoid or decrease the risk of encounters with the predator species (reviews in [16, 18]). Although it is well established that plant ...
... the victim species tries to avoid interference competition by segregating along the spatial ecological axis, using different areas or (macro) habitats to successfully avoid or decrease the risk of encounters with the predator species (reviews in [16, 18]). Although it is well established that plant ...
Biodiversity has been affected by five mass extinction
... have suggested that a gamma-ray burst caused by a nearby supernova is a possible cause of the Ordovician-Silurian extinction. The gamma-ray burst would have stripped away the earth's ozone layer, causing intense ultraviolet radiation from the sun. It may account for climate changes observed at the t ...
... have suggested that a gamma-ray burst caused by a nearby supernova is a possible cause of the Ordovician-Silurian extinction. The gamma-ray burst would have stripped away the earth's ozone layer, causing intense ultraviolet radiation from the sun. It may account for climate changes observed at the t ...
1 What is biodiversity?
... encompasses the components of the genetic coding that structures organisms (nucleotides, genes, chromosomes) and variation in the genetic make-up between individuals within a population and between populations. Organismal diversity encompasses the taxonomic hierarchy and its components, from individ ...
... encompasses the components of the genetic coding that structures organisms (nucleotides, genes, chromosomes) and variation in the genetic make-up between individuals within a population and between populations. Organismal diversity encompasses the taxonomic hierarchy and its components, from individ ...
ppt
... Specific question: Are the tree species in 0.16-ha plots more or less related than expected if such communities were formed from a random sampling of available species in the larger area (150 ha)? “…because of the conservatism of many species traits in the evolution of a lineage, we expect, in gener ...
... Specific question: Are the tree species in 0.16-ha plots more or less related than expected if such communities were formed from a random sampling of available species in the larger area (150 ha)? “…because of the conservatism of many species traits in the evolution of a lineage, we expect, in gener ...
Mutualism or cooperation among competitors promotes coexistence
... exclusion or coexistence with reduced carrying capacity of both species. According to the model, both species with the lower carrying capacity would not be favored when competing with other rivals. Therefore, pure competition does not help coexistence of multiple species though it is a driving force ...
... exclusion or coexistence with reduced carrying capacity of both species. According to the model, both species with the lower carrying capacity would not be favored when competing with other rivals. Therefore, pure competition does not help coexistence of multiple species though it is a driving force ...
Depth segregation phenomenon and the macrofaunal diversity associated to
... E=H’/Hmax, H’ is the Shannon-Weaver Index and Hmax is the maximum possible assuming equal representation of all species. 3. Results and discussion: 3.1. Length frequency distribution: The length frequency distribution and mean length variation against depth for Callista chione and Acanthocardia tube ...
... E=H’/Hmax, H’ is the Shannon-Weaver Index and Hmax is the maximum possible assuming equal representation of all species. 3. Results and discussion: 3.1. Length frequency distribution: The length frequency distribution and mean length variation against depth for Callista chione and Acanthocardia tube ...
Species, Functional Groups, and Thresholds in Ecological Resilience
... species of birds designated as threatened by the government of Alberta occur in The Grassland Natural Region, of which the dry mixed grassland is 1 of 4 ecologically distinct subregions (Alberta Environment 2010) of Alberta. Of the roughly 5 million ha of dry mixed grassland, 54% is native grassland ...
... species of birds designated as threatened by the government of Alberta occur in The Grassland Natural Region, of which the dry mixed grassland is 1 of 4 ecologically distinct subregions (Alberta Environment 2010) of Alberta. Of the roughly 5 million ha of dry mixed grassland, 54% is native grassland ...
Plankton: the paradox and the power law arXiv
... The work here builds on a mathematical theory proposed by Cuesta et al. (2017) for scaleinvariant dynamics of a continuum of species with a continuous trait (a characteristic body size) that spans an unlimited range from zero upwards, in addition to a continuous body size within species conventional ...
... The work here builds on a mathematical theory proposed by Cuesta et al. (2017) for scaleinvariant dynamics of a continuum of species with a continuous trait (a characteristic body size) that spans an unlimited range from zero upwards, in addition to a continuous body size within species conventional ...
Patterns of Biodiversity III
... forest, while the tropics add rain forest, cloud forest. These differences explain variation and diversity at a landscape scale, however, in terms of beta and gamma diversity. Why, though, might a single forest in the tropics have more diversity than a forest in the temperate zone? The structural di ...
... forest, while the tropics add rain forest, cloud forest. These differences explain variation and diversity at a landscape scale, however, in terms of beta and gamma diversity. Why, though, might a single forest in the tropics have more diversity than a forest in the temperate zone? The structural di ...
JMS 70_3 257-261 eyh028 FINAL
... Poole, 1998). Then, the settled mussels may undergo a secondary redistribution throughout the Sacca by ‘rafting’ on the drifting macroalgae, in response to hydrodynamic conditions. The successful colonization of the lagoon by M. senhousia suggests that a number of trophic-level effects (direct or in ...
... Poole, 1998). Then, the settled mussels may undergo a secondary redistribution throughout the Sacca by ‘rafting’ on the drifting macroalgae, in response to hydrodynamic conditions. The successful colonization of the lagoon by M. senhousia suggests that a number of trophic-level effects (direct or in ...
Great Basin Spadefoot (Spea intermontana)
... including the ability to survive relatively high water loss and absorb water directly from the soil while burrowed. Population sizes and trends There is no accurate information on population sizes or trends. The maximum population is probably at least 10,000 individuals, but much uncertainly is asso ...
... including the ability to survive relatively high water loss and absorb water directly from the soil while burrowed. Population sizes and trends There is no accurate information on population sizes or trends. The maximum population is probably at least 10,000 individuals, but much uncertainly is asso ...
Status of the World`s Tortoises and Freshwater Turtles
... Of the 333 species currently recognized as distinct (Turtle Taxonomy Working Group, 2009), 118 are not yet formally included on the 2009 Red List. Most of these "unevaluated" species have in fact been provisionally evaluated by the TFTSG, first in 1996 when all turtles were evaluated under the older ...
... Of the 333 species currently recognized as distinct (Turtle Taxonomy Working Group, 2009), 118 are not yet formally included on the 2009 Red List. Most of these "unevaluated" species have in fact been provisionally evaluated by the TFTSG, first in 1996 when all turtles were evaluated under the older ...
Tradeoffs, competition, and coexistence in eastern deciduous forest
... ability. In the second, the number of baits discovered by a species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of ...
... ability. In the second, the number of baits discovered by a species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of ...
The Business of Biodiversity - Wentworth Group of Concerned
... largest patches with a single corridor. Another likes the idea of a dispersed network of narrow vegetation corridors, linking all the remnant patches, but also linking this property to vegetation in other properties and providing additional strips of trees. A birdwatcher tells her that there is a sm ...
... largest patches with a single corridor. Another likes the idea of a dispersed network of narrow vegetation corridors, linking all the remnant patches, but also linking this property to vegetation in other properties and providing additional strips of trees. A birdwatcher tells her that there is a sm ...
Species loss and secondary extinctions in simple and complex
... absence of prey (bi < 0). The growth rate for the basal species is set to 1. The mortality rates for the consumers are randomly drawn from the uniform distribution (−0·001 0) and are then sorted in such way that the secondary consumers are assigned lower rates than their prey. That is because specie ...
... absence of prey (bi < 0). The growth rate for the basal species is set to 1. The mortality rates for the consumers are randomly drawn from the uniform distribution (−0·001 0) and are then sorted in such way that the secondary consumers are assigned lower rates than their prey. That is because specie ...
Traveling wave solutions of a reaction diffusion model for competing
... This assumption is equivalent to the transformations y1 ! y1/c12 and y2 ! y2/c21 (in the case c1250, c2150) and therefore only represents a re-scaling of yi which can be absorbed into the definitions of f and g. This rescaling of the interaction matrix C is commonly used in the pioneer-climax models ...
... This assumption is equivalent to the transformations y1 ! y1/c12 and y2 ! y2/c21 (in the case c1250, c2150) and therefore only represents a re-scaling of yi which can be absorbed into the definitions of f and g. This rescaling of the interaction matrix C is commonly used in the pioneer-climax models ...