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The species–area relationship or species–area curve describes the relationship between the area of a habitat, or of part of a habitat, and the number of species found within that area. Larger areas tend to contain larger numbers of species, and empirically, the relative numbers seem to follow systematic mathematical relationships. [ 1 ]
The rate of extinction once a species manages to colonize an island is affected by island size; this is the species-area curve or effect. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events.
Some critical areas of interest within macroecology include the study of species richness, latitudinal gradients in species diversity, the species-area curve, range size, body size, and species abundance. Specifically, the relationship between abundance and range size—exploring why some species are widespread and abundant while others are ...
n 0 is the number of species in the modal bin (the peak of the curve) n is the number of species in bins R distant from the modal bin a is a constant derived from the data. It is then possible to predict how many species are in the community by calculating the total area under the curve (N): =
The species-area relationship for a contiguous habitat. The need for reconciliation ecology was derived from patterns of species distribution and diversity. The most relevant of these patterns is the species-area curve which states that a larger geographic area will contain higher species diversity. This relationship has been supported by so ...
In ecology, the species discovery curve (also known as a species accumulation curve or collector's curve [1]) is a graph recording the cumulative number of species of living things recorded in a particular environment as a function of the cumulative effort expended searching for them (usually measured in person-hours).
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time.Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. [1]
When a species colonizes a new area, the authors state that the species will either shift, expand or contract its realized niche. Chapter 6 is a theoretical exploration of dispersal models. The authors consider how insular stepping stones affect the dispersion of species—particularly, the effects that size and isolation of stepping stones ...