As a habitat patch gets smaller, it a. cannot support...

As a habitat patch gets smaller, it $a$. cannot support populations of species that require large areas. $b$. supports only small populations of many species. $c .$ is influenced to an increasing degree by edge effects. $d$. is invaded by species from surrounding habitats. $e .$ All of the above

As a habitat patch gets smaller, it
$a$. cannot support populations of species that require large areas.
$b$. supports only small populations of many species.
$c .$ is influenced to an increasing degree by edge effects.
$d$. is invaded by species from surrounding habitats.
$e .$ All of the above

Key Concepts

Habitat Fragmentation

Habitat fragmentation is the process by which large, contiguous habitats are broken into smaller, isolated patches. This fragmentation can exacerbate the negative impacts of reduced patch size, including increased edge effects, reduced living space, and isolation of populations, which can hinder long-term species survival.

Population Viability

Population viability refers to the probability that a species will avoid extinction over a given time period. In the context of smaller habitat patches, the limited space and resources can lead to smaller, less stable populations that are more vulnerable to stochastic events.

Species-Area Relationship

This concept describes how the number of species increases as the area of habitat increases. Larger patches typically harbor more species because they provide more resources and a variety of niches, whereas smaller patches tend to support fewer species.

Edge Effects

Edge effects are the changes in environmental conditions and ecological processes that occur at the boundary of a habitat patch. As patches become smaller, they have a higher ratio of edge to interior, which can lead to increased exposure to disturbances, predation, and invasive species.

Habitat Patch Size

This refers to the physical area of a habitat patch. In ecology, the size of a habitat patch is crucial because larger areas can support larger and more diverse populations, while smaller patches may lead to a decrease in species richness and abundance due to limited resources.

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