CH 38 Biodiversity Flashcards
Biodiversity includes…?
Ecosystem, species and genetic diversity
Define Extirpation.
Species may disappear from local ecosystem but remain in others / species still salvageable
Define Extinction
All pops of a species have disappeared (irreversible situation)
Define Biological Magnification.
Toxins produced by industrial wastes/applied as pesticides become concentrated as they pass thru food chain.
Where Ozone Layer?
Upper atmosphere
Define Phenotypic plasticity
Ability of an organism’s physiology & anatomy to adjust to environmental conditions
Define Conservation Biology
Goal-oriented science that seeks to
understand & counter loss of biodiversity
Define Ecological Landscape
regional assemblage of interacting ecosystems / EXs: forest, adjacent fields, wetlands, & streams
Define Landscape ecology
Application of ecological principles to study of structure & dynamics of a collection of ecosystems
Define movement corridor/wildlife corridor
narrow strip/series of small clumps of high-quality habitat connecting isolated patches
Define Biodiversity hot spot
relatively small area with numerous endemic & large # of endangered and threatened species
Endemic Species
Species found nowhere else in the world / Highly succeptable to environmental changes
Define Zoned Reserve
Extensive region of land that includes one or more areas undisturbed by humans.
Define Ecotourism
travel to natural areas for tourism/recreation
Restoration ecology uses…
Ecological rules to develop methods of
achieving the goal of returning degraded areas to natural state
Define Sustainable Development
Dev that meets needs of people today w/ out limiting the ability of future generations to meet their needs / Needs ecological research + integration w/ social sciences, economics, and humanities.
