Chapter 13 Flashcards
The Biodiversity and Healthy Society
refers to the number, variety, and variability of organisms in a particular area.
Biodiversity
The tropical region has the greatest biodiversity and a decrease of biodiversity can be observed in the poles.
True
Biodiversity can be _______, ________, or __________.
genetic, species and ecosystem biodiversity.
a measure of the variety of the same genes within individual species.
Genetic biodiversity
the number of different kinds of organisms within individual communities or ecosystems.
Species biodiversity
the number of niches, trophic level, and ecological processes that capture, sustain food webs and recycle materials within this system.
Ecological biodiversity
indicates the total number of species in an area.
Species richness
shows how evenly the species are represented in the area.
Species Evenness
commonly used by researchers, it combines Species Richness and Species Evenness in a single number.
Simpson’s Index
a free statistical package that calculates biodiversity easily.
BiodiversityPro
referring to habitat destruction( mangrove destruction, mining, slash, and burn, natural habitat conversion for human use and monoculture)
Land use changes
*Local Factor
referring to water-borne pollutants from leaching, nitrogen, fertilizer use; chemicals from factories, human wastes; noise pollution, light pollution, and sonar pollution.
Pollution
*Local Factor
referring to killing, poaching, and selling endangered species of plants and animals.
Resource Exploitation
*Local Factor
Introduction of exotic or invasive species such as kuhol (Golden Apple Snail) and janitor fish that threaten the survival of native species.
Introduction of exotic or invasive species such as kuhol (Golden Apple Snail) and janitor fish that threaten the survival of native species.
*Local Factor
Climate change due to greenhouse gases.
Climate change due to greenhouse gases.
*Global Factor