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  2. Gene–environment interaction - Wikipedia

    en.wikipedia.org/wiki/Gene–environment_interaction

    Gene–environment interaction (or genotype–environment interaction or G×E) is when two different genotypes respond to environmental variation in different ways. A norm of reaction is a graph that shows the relationship between genes and environmental factors when phenotypic differences are continuous. [1]

  3. Biological interaction - Wikipedia

    en.wikipedia.org/wiki/Biological_interaction

    Mutualism is an interaction between two or more species, where species derive a mutual benefit, for example an increased carrying capacity. Similar interactions within a species are known as co-operation. Mutualism may be classified in terms of the closeness of association, the closest being symbiosis, which is often confused with mutualism.

  4. Gene-environment interplay - Wikipedia

    en.wikipedia.org/wiki/Gene-environment_interplay

    Gene–environment interaction occurs when genetic factors and environmental factors interact to produce an outcome that cannot be explained by either factor alone. [6] For example, a study found that individuals carrying the genetic variant 5-HTT (the short copy) that encodes the serotonin transporter were at a higher risk of developing depression when exposed to adverse childhood experiences ...

  5. Coupled human–environment system - Wikipedia

    en.wikipedia.org/wiki/Coupled_human–environment...

    A coupled human–environment system (known also as a coupled human and natural system, or CHANS) characterizes the dynamical two-way interactions between human systems (e.g., economic, social) and natural (e.g., hydrologic, atmospheric, biological, geological) systems.

  6. Ecological facilitation - Wikipedia

    en.wikipedia.org/wiki/Ecological_facilitation

    Thus, the nature of species interactions may shift with environmental conditions. Facilitation has a greater effect on plant interactions under environmental stress than competition. [9] Another example is the positive effects of facilitation on desert plants that face the effects of rising aridification.

  7. Social ecological model - Wikipedia

    en.wikipedia.org/wiki/Social_ecological_model

    Thus, systems thinking, which is the process of understanding how things influence one another within a whole, is central to ecological models. Generally, a system is a community situated within an environment. Examples of systems are health systems, education systems, food systems, and economic systems.

  8. Mutualism (biology) - Wikipedia

    en.wikipedia.org/wiki/Mutualism_(biology)

    Mutualism is a common type of ecological interaction. Prominent examples are: ... Because that is not possible due to environmental constraints and carrying capacity ...

  9. Gene–environment correlation - Wikipedia

    en.wikipedia.org/wiki/Gene–environment_correlation

    Twin and adoption studies have provided much of the evidence for gene–environment correlations by demonstrating that putative environmental measures are heritable. [5] For example, studies of adult twins have shown that desirable and undesirable life events are moderately heritable as are specific life events and life circumstances, including divorce, the propensity to marry, marital quality ...