Predicting changes in the distribution and abundance of species
... its own right, but in a world highly influenced by humancaused environmental changes, ecology must also rise to the applied challenge of predicting how distributions and abundances will respond to environmental change. Distributions are the fundamental unit of biogeographical study, providing inform ...
... its own right, but in a world highly influenced by humancaused environmental changes, ecology must also rise to the applied challenge of predicting how distributions and abundances will respond to environmental change. Distributions are the fundamental unit of biogeographical study, providing inform ...
The interaction between predation and competition
... The quantities ajj and aij now represent the total strengths of intraspecific and interspecific density dependence, combining both competition and predation. Thus, ajj measures the combined strengths of the feedback loops from species j to species j through both resources and predators, whereas aij ...
... The quantities ajj and aij now represent the total strengths of intraspecific and interspecific density dependence, combining both competition and predation. Thus, ajj measures the combined strengths of the feedback loops from species j to species j through both resources and predators, whereas aij ...
Document
... transition stage was noticed. Environmental parameters seem to have a great influence on the activity of C. madrasensis. During the course of a year, two distinct phases of activity could be observed. A period of active somatic growth coincided with the southwest monsoon (June-September) which was c ...
... transition stage was noticed. Environmental parameters seem to have a great influence on the activity of C. madrasensis. During the course of a year, two distinct phases of activity could be observed. A period of active somatic growth coincided with the southwest monsoon (June-September) which was c ...
Isolating Mechanisms in the Speciation of Fishes.
... Isolating Mechanisms in the Speciation of Fishes factor, that of the great scarcity of one species in an abundance of another, decreasing the chance for homogeny, may be a contributing or even the controlling basis for the miscegenation. To the degree that this factor of relative numbers operates, ...
... Isolating Mechanisms in the Speciation of Fishes factor, that of the great scarcity of one species in an abundance of another, decreasing the chance for homogeny, may be a contributing or even the controlling basis for the miscegenation. To the degree that this factor of relative numbers operates, ...
Free-feeding insect herbivores along environmental gradients in
... Methods: study sites The study sites were established in the region of the Serra do Cipó National Park, in Minas Gerais State, Brazil (between 19° 15' and 19° 30' S, and 43° 30' and 43° 55' W). The altitudinal range in the study area varies from 800 to 1500 m. The study region is in the Brazilian C ...
... Methods: study sites The study sites were established in the region of the Serra do Cipó National Park, in Minas Gerais State, Brazil (between 19° 15' and 19° 30' S, and 43° 30' and 43° 55' W). The altitudinal range in the study area varies from 800 to 1500 m. The study region is in the Brazilian C ...
Restoration-Focused Germination and Development
... In Mexico, oaks (Quercus spp.) are widely distributed in temperate forests, forming pure stands or associations with conifers or other species (Challenger, 1998; Valencia-Avalos, 2004). Oak forests occupy 9 × 106 ha of Mexican land and are located mainly in the mountainous regions of the country (Ch ...
... In Mexico, oaks (Quercus spp.) are widely distributed in temperate forests, forming pure stands or associations with conifers or other species (Challenger, 1998; Valencia-Avalos, 2004). Oak forests occupy 9 × 106 ha of Mexican land and are located mainly in the mountainous regions of the country (Ch ...
Marbled Murrelet
... sides, belly, and wing patches becoming white along with a broken white collar. These colouration patterns also help to camouflage the marbled murrelet from predators on the open ocean as well as during underwater foraging. Juveniles have a similar size and body shape as adults but plumage has more ...
... sides, belly, and wing patches becoming white along with a broken white collar. These colouration patterns also help to camouflage the marbled murrelet from predators on the open ocean as well as during underwater foraging. Juveniles have a similar size and body shape as adults but plumage has more ...
(Coleoptera: Tenebrionidae) in the shortgrass steppe
... trap success as a binary quantity in this manner rather than as a continuous response variable circumvents the assumption that the data assume a Poisson distribution, which is not present in this case (mean and variance differed significantly, χ2 = 960.65, P = 0.0001). Binomial logistic regression w ...
... trap success as a binary quantity in this manner rather than as a continuous response variable circumvents the assumption that the data assume a Poisson distribution, which is not present in this case (mean and variance differed significantly, χ2 = 960.65, P = 0.0001). Binomial logistic regression w ...
Ecology glossary
... Classification A mathematical procedure for categorizing communities in which communities with similar species compositions are grouped together in subsets. Climax The presumed endpoint of a successional sequence; a community that has reached a steady state. Cline A chain of different forms of speci ...
... Classification A mathematical procedure for categorizing communities in which communities with similar species compositions are grouped together in subsets. Climax The presumed endpoint of a successional sequence; a community that has reached a steady state. Cline A chain of different forms of speci ...
Invasive Alien Plant Species
... IAPs predominantly originate from Europe, but are increasingly from Asia and the US. There are 1350 terrestrial alien plant species now established in Great Britain and 23 freshwater alien plant species, 3 with between 80 to 90% of these occupying less than 10% of the available suitable habitat. 4 T ...
... IAPs predominantly originate from Europe, but are increasingly from Asia and the US. There are 1350 terrestrial alien plant species now established in Great Britain and 23 freshwater alien plant species, 3 with between 80 to 90% of these occupying less than 10% of the available suitable habitat. 4 T ...
Neutral theory and community ecology
... The sole assumption is that the expected abundances of randomly chosen species are independently drawn from a gamma distribution. The first attempt to link this statistical theory to demographic population models was tackled by Kendall (1948). He proposed a simple model of population growth by a bir ...
... The sole assumption is that the expected abundances of randomly chosen species are independently drawn from a gamma distribution. The first attempt to link this statistical theory to demographic population models was tackled by Kendall (1948). He proposed a simple model of population growth by a bir ...
Giant kokopu - Taranaki Regional Council
... and have a thick leathery skin covered with mucus. Their skin is dark olive with a unique pattern of gold lines, spots, crescents and rings. ...
... and have a thick leathery skin covered with mucus. Their skin is dark olive with a unique pattern of gold lines, spots, crescents and rings. ...
Community monopolization: local adaptation enhances priority
... Variation in dispersal rates also substantially alters the distribution of species among source patches. Low dispersal (m , 0.05) allows species 1, which dominates the new patch, to adapt to both original and new habitats, whereas species 2 only dominates its original source habitat (figure 3a,b). I ...
... Variation in dispersal rates also substantially alters the distribution of species among source patches. Low dispersal (m , 0.05) allows species 1, which dominates the new patch, to adapt to both original and new habitats, whereas species 2 only dominates its original source habitat (figure 3a,b). I ...
Community monopolization: local adaptation enhances priority
... Variation in dispersal rates also substantially alters the distribution of species among source patches. Low dispersal (m , 0.05) allows species 1, which dominates the new patch, to adapt to both original and new habitats, whereas species 2 only dominates its original source habitat (figure 3a,b). I ...
... Variation in dispersal rates also substantially alters the distribution of species among source patches. Low dispersal (m , 0.05) allows species 1, which dominates the new patch, to adapt to both original and new habitats, whereas species 2 only dominates its original source habitat (figure 3a,b). I ...
Introductory Research Essay
... Figure 1 is only based on ruminants. Yet, there is an important aspect of ungulate physiology that has not been discussed yet. Non-ruminants (also called hind-gut fermenters) are mostly comparable to roughage eaters (Kleynhans et al. 2011). Ruminants ferment their food in their stomachs to break it ...
... Figure 1 is only based on ruminants. Yet, there is an important aspect of ungulate physiology that has not been discussed yet. Non-ruminants (also called hind-gut fermenters) are mostly comparable to roughage eaters (Kleynhans et al. 2011). Ruminants ferment their food in their stomachs to break it ...
autecology, geographic range, and the Holocene fossil record
... Forecasting how species will respond to climatic change requires knowledge of past community dynamics. Here we use time-series data from the small-mammal fossil records of two caves in the Great Basin of the American West to evaluate how contrasting and variable local paleoclimates have shaped small ...
... Forecasting how species will respond to climatic change requires knowledge of past community dynamics. Here we use time-series data from the small-mammal fossil records of two caves in the Great Basin of the American West to evaluate how contrasting and variable local paleoclimates have shaped small ...
Lesson Overview
... Birds on Christmas Island in the Indian Ocean, for example, all live in the same habitat but they prey on fish of different sizes and feed in different places. Thus, each species occupies a distinct niche. ...
... Birds on Christmas Island in the Indian Ocean, for example, all live in the same habitat but they prey on fish of different sizes and feed in different places. Thus, each species occupies a distinct niche. ...
Diversity-stability hypothesis
... already, and presumably more in progress. But another reason for changing attitudes has been that "stability" is a multi-vocal concept, and evidence suggests that not all types of it ...
... already, and presumably more in progress. But another reason for changing attitudes has been that "stability" is a multi-vocal concept, and evidence suggests that not all types of it ...
Lethal Interactions Between Parasites and Prey Increase Niche
... previously corroborated by nuclear data (15). To identify parasitoid species, we sorted wasps into morphospecies, analyzed sequences of mtCOI and nuclear genes 28S and ef1-a, and genotyped a panel of 155 amplified fragment length polymorphism (AFLP) loci (18). To determine the host (fly) species kil ...
... previously corroborated by nuclear data (15). To identify parasitoid species, we sorted wasps into morphospecies, analyzed sequences of mtCOI and nuclear genes 28S and ef1-a, and genotyped a panel of 155 amplified fragment length polymorphism (AFLP) loci (18). To determine the host (fly) species kil ...
AP BIOLOGY – CHRISTMAS BREAK WORK
... Explain why energy flows but nutrients cycle within an ecosystem ...
... Explain why energy flows but nutrients cycle within an ecosystem ...
Native Populations of Bees in North Texas Roughly one
... plot (National Research Council, 2007). The bowls will also be placed in random order for color to reduce any sampling bias. The bowls will be filled with a water and soap solution that causes any bee landing in it to sink and drown (Cane, 2000). This solution will be made by mixing one gallon of w ...
... plot (National Research Council, 2007). The bowls will also be placed in random order for color to reduce any sampling bias. The bowls will be filled with a water and soap solution that causes any bee landing in it to sink and drown (Cane, 2000). This solution will be made by mixing one gallon of w ...
Conserving Biodiversity by Conserving Land
... Second, how do various management actions affect biodiversity? A wide range of management actions can be considered in this framework. Management actions could include such things as setting aside habitat as biological reserves, alternative pesticide application or tillage practices on agricultural ...
... Second, how do various management actions affect biodiversity? A wide range of management actions can be considered in this framework. Management actions could include such things as setting aside habitat as biological reserves, alternative pesticide application or tillage practices on agricultural ...
Commonness and rarity determinants of woody
... has also fundamental implication for conservation (Gaston 2010, 2012), because rarity is associated with extinction risk, particularly for species that are rare in multiple aspects of their distribution and ecology (Rabinowitz et al. 1986). Despite the fundamental ecological and applied questions su ...
... has also fundamental implication for conservation (Gaston 2010, 2012), because rarity is associated with extinction risk, particularly for species that are rare in multiple aspects of their distribution and ecology (Rabinowitz et al. 1986). Despite the fundamental ecological and applied questions su ...