The ability of an ecosystem to remain unchanged when being subjected to a disturbance.

The ability of an ecosystem to recover after it has been disturbed.

The series of community changes which occur on an entirely new habitat which has never been colonized before.

The series of community changes which take place on a previously colonized, but disturbed or damaged habitat.

A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

Species that serve as a measure of the environmental conditions that exist in a given locale.

The first species to colonize previously disrupted or damaged ecosystems.

A stable community that no longer goes through major ecological changes.

Ecological Restoration

The process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed.

The total number of genetic characteristics in the genetic makeup of a species.

The number of different species that are represented in a given community.

The variety of ecosystems in a given place.

The range of different habitats in an area.

Population Bottleneck

An event that drastically reduces the size of a population.

Variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes.

The number of different species represented in an ecological community, landscape or region.

How close in numbers each species in an environment is.

The end of an organism or of a group of organisms.

The disappearance of a species from a particular local area, but not from its entire range.

Background Extinction Rate

The standard rate of extinction in earth's geological and biological history before humans became a primary contributor to extinctions.

Mass Extinction Events

Periods in Earth's history when abnormally large numbers of species die out simultaneously or within a limited time frame.

Habitat Fragmentation

The process by which habitat loss results in the division of large, continuous habitats into smaller, more isolated remnants.

Illegal hunting or capturing of wild animals.

Non-native species that spread beyond their original introduction area and cause environmental or economic damage.

A biogeographic region with significant levels of biodiversity that is under threat from humans.

The study of the preservation, protection, or restoration of the natural environment, natural ecosystems, vegetation, and wildlife.

The process of breeding animals outside of their natural environment in restricted conditions, such as within zoos or other conservation facilities.

Endangered Species Act (ESA)

A key legislation for both domestic and international conservation, providing a framework to conserve and protect endangered and threatened species and their habitats.

A comprehensive inventory of the global conservation status of biological species.

Minimum Viable Population

The smallest possible size at which a biological population can exist without facing extinction from natural disasters or demographic, environmental, or genetic stochasticity.

The benefits people obtain from ecosystems.

Products obtained from ecosystems, including food, fresh water, wood, fiber, genetic resources, and medicines.

Benefits obtained from the regulation of ecosystem processes, including air quality regulation, climate regulation, water regulation, erosion regulation, water purification, disease regulation, pest regulation, pollination, and natural hazard regulation.

Non-material benefits people obtain from ecosystems through spiritual enrichment, cognitive development, reflection, recreation, and aesthetic experiences.

Services that are necessary for the production of all other ecosystem services, including soil formation, photosynthesis, primary production, nutrient cycling, and water cycling.

The range of conditions that an organism can endure before injury or death results.

The study of the species composition and species richness on islands.

Changes in population or community structures that occur at the boundary of two habitats.

An area of habitat surrounded by a different habitat, often as a result of human activities.

Strips of natural habitat that connect populations separated by human activities or structures.

APES Unit 02 Vocabulary Flashcards Flashcards

Student preview

47 questions

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1.

FLASHCARD QUESTION

Front

Generalist Species

Back

Species that can thrive in a wide variety of environmental conditions and can make use of a variety of different resources.

2.

FLASHCARD QUESTION

Front

Specialist Species

Back

Species that thrive in a narrow range of environmental conditions or have a limited diet.

3.

FLASHCARD QUESTION

Front

Adaptations

Back

Traits that improve an individual's ability to survive and reproduce in a particular environment.

4.

FLASHCARD QUESTION

Front

Speciation (allopatric)

Back

The formation of new and distinct species in the course of evolution, occurring when biological populations become isolated.

5.

FLASHCARD QUESTION

Front

Population Density

Back

The number of individuals per unit area or volume.

6.

FLASHCARD QUESTION

Front

Population Dispersion

Back

The way in which individuals of a population are spread in an area or a volume.

7.

FLASHCARD QUESTION

Front

Population Size

Back

The total number of individuals in a population.

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