Advanced Ecological Processes Quiz

Speciation, Dispersal, Selection, Drift

The fundamental niche is the full range of environmental conditions an organism can possibly occupy and use, related to climate and thermal performance curves.

Species distributions vary predictably across climate gradients because species have different niches regarding environmental conditions, and they occur in the environments where they perform best.

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<p>Drift, which is stochasticity and processes causing random changes in species' abundance</p> Signup and view all the answers

<p>According to Hutchinson (1957), the niche is a 'n-dimensional set of biotic and abiotic conditions required for species to achieve positive population growth rates without immigration'.</p> Signup and view all the answers

<p>The fundamental niche is related to climate, e.g. thermal performance curves. Therefore, it is the full range of environmental conditions an organism can possibly occupy and use.</p> Signup and view all the answers

<p>The 4 forces are Speciation, Dispersal, Selection, and Drift.</p> Signup and view all the answers

<p>Species distributions generally vary predictably across climate gradients because species have different niches regarding the environmental conditions and occur in the environments they perform best.</p> Signup and view all the answers

<p>Selection, which is caused by environment and interactions, i.e. abiotic and biotic filters.</p> Signup and view all the answers