Bascom WR. Shively C. We hypothesized that a concern for social status is an important element in explaining human fertility variation and recent fertility decline. Again, optimal investment in social capital increases with higher intensity of competition. Vandermeer, J. The community matrix and interdependence of the competition coefficients.
SimberlofT, D. The status of competition theory in ecology. — Ann. Zool.
Competition theory, evolution, and the concept of an ecological niche SpringerLink
Fennici Current ecological theory on present effects of interspecific. about theory in community ecology, particularly competition theory.
. dispersal and population extinction share the same logical status as other hypoth.
This article examines some of the main tenets of competition theory in light of the theory of evolution and the concept of an ecological niche. The principle of.
Lewontin, ed. Specifically, many of the most important predictors of fertility in the literature—women's education, the family's occupation, wealth, and income—are important not just as measures of resource access or mortality risk, but also as direct and indirect indicators of social status.
Competition is one of many interacting biotic and abiotic factors that affect community structure. The degree of size asymmetry has major effects on the structure and diversity of ecological communities, e. Ecological and social dynamics of territoriality and hierarchy formation. Assembly rules Bateman's principle Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity Emergence Extinction debt Kleiber's law Liebig's law of the minimum Marginal value theorem Thorson's rule Xerosere.
Experimental studies of the niche.
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|Empirical work is required to test both the assumptions and the predictions of the model. Simpson, G. We then introduce specific functional forms for a numerical simulation, and then analyse how optimal investments and fertility respond to variation in key ecological parameters.
See also: Female intrasexual competition.
The grey curve shows the effect of increasing gains to direct investment in productivity alone.
The present status of the competitive exclusion principle Since Darwin accepted the Malthusian population theory to solve the demographic problems he thought to be Cody M.L.
Diamond J.M. Ecology and Evolution of Communities.
Video: Status competition theory in ecology Competition and Natural Selection - Evolution - Biology - FuseSchool
Integrating interspecific competition with other factors that affect ecological communities Prevailing competition theories are built on the extrapolation of the analytic principle of competitive. as a quest for the status of this subtheory in the.
If so, on what time scales do they occur, and to what extent is variation across time and space a result of endogenous dynamics versus variation in socio-ecological parameters?
Status competition, inequality, and fertility implications for the demographic transition
Werner, E. Explaining fertility transitions.
Video: Status competition theory in ecology What is BUSINESS ECOSYSTEM? What does BUSINESS ECOSYSTEM mean? BUSINESS ECOSYSTEM meaning
Introduction Recent research on human fertility and the demographic transition suggests that fertility decisions are affected by differences in mortality risk, access to resources, pay-offs to investment in future economic productivity, and access to information and technology [ 1 — 3 ].
An increase in the intensity of status competition amidst high levels of social inequality may thus be important for explaining the observed extent of modern fertility decline.
Experimental studies of the niche.
Status competition theory in ecology
|Suttles W, Sturtevant WC.
Does observed fertility maximize fitness among New Mexican men? The complementarity between returns to social capital and non-rank-based capital—i. See the electronic supplementary material for a description of the model parameters used to generate this plot.
Stulp G, Barrett L.