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Polarized light pollution is perhaps the most compelling and well-documented cue triggering ecological traps. [10] Orientation to polarized sources of light is the most important mechanism that guides at least 300 species of dragonflies, mayflies, caddisflies, tabanid flies, diving beetles, water bugs, and other aquatic insects in their search for the water bodies they require for suitable ...
Alternative stable state theory was first proposed by Richard Lewontin (1969), but other early key authors include Holling (1973), Sutherland (1974), May (1977), and Scheffer et al. (2001). In the broadest sense, alternative stable state theory proposes that a change in ecosystem conditions can result in an abrupt shift in the state of the ...
According to the habitat selection hypothesis, host selection occurs through the means of habitat imprinting in early post-natal development. A female cuckoo retains recognition of certain stimuli, like vegetation, from experience with her natal habitat. [6] Habitats might be defined as dry or wet, shrubby or forested, lakeside, etc.
Unified neutral theory is a hypothesis proposed by Stephen P. Hubbell in 2001. [20] The hypothesis aims to explain the diversity and relative abundance of species in ecological communities, although like other neutral theories in ecology, Hubbell's hypothesis assumes that the differences between members of an ecological community of trophically ...
Moreover, fragmentation can change the microclimate at both local and regional scales, influencing biodiversity through interactions with anthropogenic climate change. [62] Overall, habitat fragmentation significantly disrupts ecosystem services by altering nutrient retention, biodiversity, and ecosystem functioning at various spatial and ...
Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms.. Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population.
Each subdivision within this theory generates similar explanations for the coexistence of species with habitat disturbance. Joseph H. Connell [6] proposed that relatively low disturbance leads to decreased diversity and high disturbance causes an increase in species movement. These proposed relationships lead to the hypothesis that intermediate ...
The ontogenetic niche shift varies across species; in some it is hardly visible and gradual (for example a change in diet or in size in mammals and reptiles), while in others it is obvious and abrupt (the metamorphosis of insects, which often results in changing habitat, diet and other ecological conditions).