ELEVEN

Vocabulary terms covering population ranges, metapopulations, dispersal types, and spatial dispersion patterns from the lecture.

Metapopulation

A group of relatively isolated populations that can be linked by occasional dispersal, such as seasonally or via abiotic conditions like wind.

Immigration

The movement of individuals into a population.

Emigration

The movement of individuals leaving a population of study.

Endemic species

Species that have an extremely limited, hyper-local geographic distribution, such as being restricted to specific springs or a narrow canopy elevation.

Devil's hole pup fish

An endemic fish species characterized by a hyper-local population found in only two springs in Nevada.

Dispersion

The pattern describing how individuals within a population are positioned in relation to each other across an area.

Random dispersion

A dispersion pattern where individuals are neutrally located across an area, indicating they are not actively competing or responding to specific environmental factors.

Regular dispersion

A dispersion pattern where individuals are evenly separated from one another, indicative of territoriality in animals or hyper-localized depletion of soil resources in plants.

Clumped dispersion

A dispersion pattern where individuals aggregate in groups due to positive social or mutualistic interactions in animals, or localized patches of high resource quality in plants.

Quadrat sampling in clumped populations

A sampling scenario requiring a higher number of sampling units (such as $20$ quadrats instead of $5$) to reliably capture an irregular and locally dense dispersion pattern.