Chesson, P., Pacala, S., Neuhauser, C. 2001. Environmental niches
... response is uncorrelated with the other species would be advantaged relative to the other species by an amount proportional to F 2. If it is negatively correlated with the other species, its advantage would be more; if positive correlated, its advantage would be less. The advantage that accrues to a ...
... response is uncorrelated with the other species would be advantaged relative to the other species by an amount proportional to F 2. If it is negatively correlated with the other species, its advantage would be more; if positive correlated, its advantage would be less. The advantage that accrues to a ...
pop-ecology - WordPress.com
... Three Big Ideas 1. Certain interactions among species affect their use of resources and their population sizes. 2. There are always limits to population growth in nature. 3. Changes in environmental conditions cause communities and ecosystems to gradually alter their species composition and populat ...
... Three Big Ideas 1. Certain interactions among species affect their use of resources and their population sizes. 2. There are always limits to population growth in nature. 3. Changes in environmental conditions cause communities and ecosystems to gradually alter their species composition and populat ...
53_Lectures_PPT
... Concept 53.2: Dominant and keystone species exert strong controls on community structure • In general, a few species in a community exert strong control on that community’s structure • Two fundamental features of community structure are species diversity and feeding ...
... Concept 53.2: Dominant and keystone species exert strong controls on community structure • In general, a few species in a community exert strong control on that community’s structure • Two fundamental features of community structure are species diversity and feeding ...
Changes in the flora of Thoreau`s Concord
... Hosmer, so we have not analyzed his plant list separately. Later in the paper, however, we discuss his practice of introducing new plants into Concord. Richard Eaton recorded the most comprehensive flora of Concord (Eaton, 1974). His flora was based on decades of fieldwork extending from the 1920s t ...
... Hosmer, so we have not analyzed his plant list separately. Later in the paper, however, we discuss his practice of introducing new plants into Concord. Richard Eaton recorded the most comprehensive flora of Concord (Eaton, 1974). His flora was based on decades of fieldwork extending from the 1920s t ...
Biodiversity: Who Cares
... displaced rural inhabitants onto hillside slums or into other ecologically fragile areas. The ultimate consequence is a loss in biodiversity. In fact, annual species extinction is estimated to be somewhere between 20 and 30 thousand per year, or between 50 and 80 per day. Based on these estimates, m ...
... displaced rural inhabitants onto hillside slums or into other ecologically fragile areas. The ultimate consequence is a loss in biodiversity. In fact, annual species extinction is estimated to be somewhere between 20 and 30 thousand per year, or between 50 and 80 per day. Based on these estimates, m ...
2014-Biomes-Biogeography
... same species residing in a specific area. • Community – all populations of different species residing in a specific area. • Ecosystem – an ecological community of both biotic and abiotic components, and their interactions with one another. • Biome – a regional ecosystem characterized by distinct typ ...
... same species residing in a specific area. • Community – all populations of different species residing in a specific area. • Ecosystem – an ecological community of both biotic and abiotic components, and their interactions with one another. • Biome – a regional ecosystem characterized by distinct typ ...
Plant diversity increases resistance to invasion in the absence of
... flagged C. tectorum plants per plot was measured including its area and position within the 25-cm-diameter circle. This neighborhood size was chosen because C. tectorum plants in the plots were smaller than 25 cm in diameter. All plants in this 490.87-cm2 area were operationally defined as being in ...
... flagged C. tectorum plants per plot was measured including its area and position within the 25-cm-diameter circle. This neighborhood size was chosen because C. tectorum plants in the plots were smaller than 25 cm in diameter. All plants in this 490.87-cm2 area were operationally defined as being in ...
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... first. They attributed this reduction to predation by the established rediae on invading sporocyst stages from the second exposure, but such predation was never directly observed. On the other hand, Lie and coworkers have never observed cannibalism, nor suggested that it occurs, within a population ...
... first. They attributed this reduction to predation by the established rediae on invading sporocyst stages from the second exposure, but such predation was never directly observed. On the other hand, Lie and coworkers have never observed cannibalism, nor suggested that it occurs, within a population ...
A leaf-height-seed (LHS) plant ecology strategy scheme
... aims, however. If someone’s expectation from a strategy scheme is that it will express whatever they see as most important in strategic variation between species, they will often be dissatisfied with schemes proposed by others, because they disagree about what is most important and because the veget ...
... aims, however. If someone’s expectation from a strategy scheme is that it will express whatever they see as most important in strategic variation between species, they will often be dissatisfied with schemes proposed by others, because they disagree about what is most important and because the veget ...
The influence of biodiversity on invasibility of terrestrial plant
... ages are a recent source of disturbance for temperate areas. It is possible that in these areas, ecosystems assembly acts on an ecological scale. The short time since the last major disturbance may limit the niche specialization of these communities, which is why areas with intermediate disturbance ...
... ages are a recent source of disturbance for temperate areas. It is possible that in these areas, ecosystems assembly acts on an ecological scale. The short time since the last major disturbance may limit the niche specialization of these communities, which is why areas with intermediate disturbance ...
A newly identified population of Gambusia affinis (Baird and Girard
... affinis. Although morphological examination was inconclusive, the species was found to cluster with G. affinis but not with monophyletic clades of the either G. holbrooki or P. reticulata in a phylogenetic tree produced from cox1 sequences, thus confirming species identity. The mechanism of introduc ...
... affinis. Although morphological examination was inconclusive, the species was found to cluster with G. affinis but not with monophyletic clades of the either G. holbrooki or P. reticulata in a phylogenetic tree produced from cox1 sequences, thus confirming species identity. The mechanism of introduc ...
008
... KLOA through fenced management units built in partnership with the Koolau Mountains Watershed Partnership (KMWP). However, even with the construction of these management units, full stabilization efforts for the Oahu target taxa within those units may not be initiated until trail based training mane ...
... KLOA through fenced management units built in partnership with the Koolau Mountains Watershed Partnership (KMWP). However, even with the construction of these management units, full stabilization efforts for the Oahu target taxa within those units may not be initiated until trail based training mane ...
A network approach for inferring species associations from co
... extended to ecological association networks (Harris 2015). A second challenge is the need for more robust null models. Species are not distributed randomly across sites, but rather have regional geographic distributions that are constrained by climate and dispersal limitations. In the past, most nul ...
... extended to ecological association networks (Harris 2015). A second challenge is the need for more robust null models. Species are not distributed randomly across sites, but rather have regional geographic distributions that are constrained by climate and dispersal limitations. In the past, most nul ...
The Conservation Status of Pelagic Sharks and Rays
... are Data Deficient. As a group, pelagic elasmobranchs suffer significantly greater threats than do chondrichthyans as a whole. In addition, oceanic shark and ray species taken regularly in high-seas fisheries are more likely to be threatened (52%) than are pelagic elasmobranchs in general. Brief sum ...
... are Data Deficient. As a group, pelagic elasmobranchs suffer significantly greater threats than do chondrichthyans as a whole. In addition, oceanic shark and ray species taken regularly in high-seas fisheries are more likely to be threatened (52%) than are pelagic elasmobranchs in general. Brief sum ...
Reviewer #1: Comments: The abstract is usually a short summary of
... comes too late. This should be mentioned more at the beginning in the introduction. Response: All comments were taken into account and manuscript was filled in with appropriate information. The final version is: “A. vulgaris was first discovered in southwestern France in 1855 (Moquin-Tandon 1855). I ...
... comes too late. This should be mentioned more at the beginning in the introduction. Response: All comments were taken into account and manuscript was filled in with appropriate information. The final version is: “A. vulgaris was first discovered in southwestern France in 1855 (Moquin-Tandon 1855). I ...
Ecology of Estuaries I. Importance of Estuaries
... • salinity gradients form from mouth (ocean) to back (river) — many species have a limited range of salinities they can tolerate — salinity gradients change over time: depending on weather (rainfall) and tidal flushing – seasonality: wet season in Mediterranean climates is low salinity season ...
... • salinity gradients form from mouth (ocean) to back (river) — many species have a limited range of salinities they can tolerate — salinity gradients change over time: depending on weather (rainfall) and tidal flushing – seasonality: wet season in Mediterranean climates is low salinity season ...
POISON DART FROGS - Animart Pet Stores
... Poison Dart Frogs are Frogs of the Dendrobatid group. Different species come in a wide array of colors and patterns. One of the most colorful animals in captivity. Depending on species they can range from only ½ inch in length up to 2 ½ inches. Typically most will live 4-8 years but some spe ...
... Poison Dart Frogs are Frogs of the Dendrobatid group. Different species come in a wide array of colors and patterns. One of the most colorful animals in captivity. Depending on species they can range from only ½ inch in length up to 2 ½ inches. Typically most will live 4-8 years but some spe ...
Mutualism Change to structure of Exam 3
... with the plant, Prunus fauxviflorum. Based on your observations, it is clear that the butterfly can, in principle, pollinate the plant and that the plant generally offers a nectar reward to the butterfly. Consequently, you have hypothesized that this interaction is a mutualism. To test this hypothes ...
... with the plant, Prunus fauxviflorum. Based on your observations, it is clear that the butterfly can, in principle, pollinate the plant and that the plant generally offers a nectar reward to the butterfly. Consequently, you have hypothesized that this interaction is a mutualism. To test this hypothes ...
Notes and Comments
... MacArthur’s (1957) original broken-stick model was constructed to predict the relative abundances of species in a community. Lehman and Tilman (2000) altered this model to study stability under the assumption that resources were randomly partitioned among competitors. This variation stems from the n ...
... MacArthur’s (1957) original broken-stick model was constructed to predict the relative abundances of species in a community. Lehman and Tilman (2000) altered this model to study stability under the assumption that resources were randomly partitioned among competitors. This variation stems from the n ...
cockpit country biodiversity manual
... polly lizards (Sphaerodactylus). The third cockpit bromeliad lizard is a galliwasp of about 10 cm snout-vent length, Celestus fowleri, which appears to be very rare. It was described in 1971 from a single specimen captured at Windsor, and has since been seen only once, close to the original site. Ve ...
... polly lizards (Sphaerodactylus). The third cockpit bromeliad lizard is a galliwasp of about 10 cm snout-vent length, Celestus fowleri, which appears to be very rare. It was described in 1971 from a single specimen captured at Windsor, and has since been seen only once, close to the original site. Ve ...
Stable coexistence of ecologically identical species: conspecific
... level of competition in high-density areas than low level of competition in low-density areas. If the spatial distributions of competing species are not completely correlated, the level of intraspecific competition may thereby become greater than the level of interspecific competition. This amplific ...
... level of competition in high-density areas than low level of competition in low-density areas. If the spatial distributions of competing species are not completely correlated, the level of intraspecific competition may thereby become greater than the level of interspecific competition. This amplific ...
Proposal form to prescribe certain organisms as not new organisms
... Most known species of the family Anthocoridae are predatory as nymphs and adults, mainly on other small arthropods. The species Macrotrachelia nigronitens is found in Southern, Central and Northern America. It has been purposefully introduced to Hawaii, although it does not appear to have establishe ...
... Most known species of the family Anthocoridae are predatory as nymphs and adults, mainly on other small arthropods. The species Macrotrachelia nigronitens is found in Southern, Central and Northern America. It has been purposefully introduced to Hawaii, although it does not appear to have establishe ...
Great Barrier Reef
... The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,600 kilometres over an area of approximately 344,400 square kilometres. It is the only natural living thing that can be seen from space The Great Barrier Reef ...
... The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,600 kilometres over an area of approximately 344,400 square kilometres. It is the only natural living thing that can be seen from space The Great Barrier Reef ...
Coevolutionary motion and swarming in a niche space model of
... niche axis in the specific ecological system under consideration. For example, the position xi might quantify the habitat type where species i lives, the climate conditions it is best adapted to or the position along an environmental gradient. Typical examples include e.g., geographic altitude, humid ...
... niche axis in the specific ecological system under consideration. For example, the position xi might quantify the habitat type where species i lives, the climate conditions it is best adapted to or the position along an environmental gradient. Typical examples include e.g., geographic altitude, humid ...
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.