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Because other species can also be generalists, there is more competition between species, reducing the amount of resources for all generalists in an ecosystem. [7] Specialist herbivores can have morphological differences as compared to generalists that allow them to be more efficient at hunting a certain prey item, or able to eat a plant that ...
In highly nested networks, guilds of species that share an ecological niche contain both generalists (species with many links) and specialists (species with few links, all shared with the generalists). [13] In mutualistic networks, nestedness is often asymmetrical, with specialists of one guild linked to the generalists of the partner guild. [14]
The first paradigm predominates in what may be called "classical" ecology. It assumes that niche space is largely saturated with individuals and species, leading to strong competition. Niches are restricted because "neighbouring" species, i.e., species with similar ecological characteristics such as similar habitats or food preferences, prevent ...
Animals that have S 1 s that reach the threshold are defined as generalists. In nature, generalists include a wide range of prey items in their diet. [11] An example of a generalist is a mouse, which consumes a large variety of seeds, grains, and nuts. [12] In contrast, predators with relatively short S 1 s are still better off choosing to eat ...
The first explicit formulation of a theory of population ecology, by Michael T. Hannan and the late John H. Freeman in their 1977 American Journal of Sociology piece "The population ecology of organizations" and later refined in their 1989 book Organizational Ecology, examines the environment in which organizations compete and how a process ...
These abundant species are often generalists, with many rare species being specialists. [4] High density of a species in multiple localities will usually lead to it being relatively abundant over all in an ecosystem. [4] Therefore, high local abundance can be directly linked to high regional distribution. Species with high abundance are likely ...
This means that the core of the network is made up of highly connected generalists (a pollinator that visits many different species of plant), while specialized species interact with a subset of the species that the generalists interact with (a pollinator that visits few species of plant, which are also visited by generalist pollinators). [5]
This change in landscape ecology is proving to have consequences. [2] Generalist species, especially invasive ones, have been seen to benefit from this landscape change whilst specialist species are suffering. [3] For example, the alpha diversity of edge-intolerant birds in Lacandona rainforest, Mexico, is decreasing as edge effects increase. [4]
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