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Hutchinson concluded that this size ratio could be used as an indicator of the kind of difference necessary to permit two species to co-occur in different niches but at the same level of the food web. [3] The rule's legitimacy has been questioned, as other categories of objects also exhibit size ratios of roughly 1.3.
The Grinnellian niche concept embodies the idea that the niche of a species is determined by the habitat in which it lives and its accompanying behavioral adaptations. In other words, the niche is the sum of the habitat requirements and behaviors that allow a species to persist and produce offspring.
Definitions of the niche date back to 1917, [30] but G. Evelyn Hutchinson made conceptual advances in 1957 [31] [32] by introducing a widely adopted definition: "the set of biotic and abiotic conditions in which a species is able to persist and maintain stable population sizes."
According to Hutchinson, he constructed "mathematical models of populations, the changing proportions of individuals of various ages, birthrate, the ecological niche, and population interaction in this technical introduction to population ecology."
'Father' of animal ecology, pioneered food-web & niche concepts and authored influential Animal Ecology text [85] [89] G. Evelyn Hutchinson: 1903–1991: Limnologist and conceptually advanced the niche concept [90] [91] [92] Eugene P. Odum: 1913–2002: Co-founder of ecosystem ecology and ecological thermodynamic concepts [81] [85] [93] [94 ...
The psychology of the caretakers, particularly parental ethnotheories of child development and parenting, which play a directive role in actual practices. The three subsystems of the developmental niche - settings, customs, and caretaker psychology - share the common function of mediating the child's developmental experience within the larger ...
Niche construction is the ecological process by which an organism alters its own (or another species') local environment. These alterations can be a physical change to the organism’s environment, or it can encompass the active movement of an organism from one habitat to another where it then experiences different environmental pressures.
Developmental niche, a concept for understanding the cultural context of child development; Ecological niche, a term describing the relational position of an organism's species; Niche differentiation, in ecology, the process by which competing species use the environment differently in a way that helps them to coexist; Niche (protein structural ...