Chapter 11 APES
Terms in this set (25)
the diversity of plant and animal life in a particular habitat (or in the world as a whole)
A relatively small area with an exceptional concentration of endemic species
the importance we place on just knowing that a particular species or a specific organism exists
a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
Habitat destruction, Invasive species, Pollution, Population (human), and Overharvesting, the leading causes of extinction
plants and animals that have migrated to places where they are not native
catching or removing from a population more organisms than the population can replace
a species whose numbers are so small that the species is at risk of extinction
a species that could become endangered in the near future
naturally rare organisms or species whose numbers have been so reduced by human activities that they are susceptible to actions that could push them into threatened or endangered status
habitat conservation plans
(HCP), Fish and Wildlife Service (FWS) negotiates agreements with private landowners where landowners are allowed to harvest resources or build on part of their land as long as the species benefits overall
a biogeographical technique of mapping biological diversity and endemic species to find gaps between protected areas that leave endangered habitats vulnerable to disruption
sum total of all the different forms of genetic information carried by all organisms living on Earth today
Number of different species in the biosphere
The variety of forests, deserts, grasslands, oceans, streams, lakes, and other biological communities interacting with one another and with their nonliving environment
the number of different species in a community
Abundance of individuals within each species contained in a community.
separation of species or populations so that they cannot interbreed and produce fertile offspring
phylogenetic species concept
A definition of species as the smallest group of individuals that share a common ancestor, forming one branch on the tree of life.
evolutionary species concept
Defines species according to evolutionary history and common ancestors
the ordering of genes in a haploid set of chromosomes of a particular organism
a species whose impact on its community or ecosystem are much larger and more influential than would be expected from mere abundance
Species that serve as early warnings that a community or ecosystem is being degraded.
A surrogate species selected with the assumption that protection of its habitat will serve as an "umbrella" to protect many other species; often a species with large or specialized habitat requirements or which is easy to count.
Especially interesting or attractive organisms that people respond to emotionally. Motivate public to preserve biodiversity and contribute to conservation. EX: giant panda (youtube.com: panda sneezing)