1. biodiversity Flashcards
define biodiversity
the variety and variability of all life on Earth
3 levels of biodiversity
genes in a gene pool
species in an ecosystem
ecosystems in a region/the biosphere
what is biodiversity important
provides direct services, indirect services and aesthetic/ethical effects
biodiversity direct services
shelter, medicines (Rosy Periwinkle - childhood lukemia), food
biodiversity indirect services
mangroves protect from storm erosion, quicker/easier recovery from unpredictable weather events
biodiversity ethical/aesthetic effects
cultural importance, recreation spaces, research and education
biodiversity hotspot criteria
1500+ endemic vascular plant species, 70% of original habitat lost
why are biodiversity hotspots important
helps scientists know where to aim conservation efforts, helps preserve endemic species
main threats to biodiversity
degradation of habitat, invasive species, climate change, changes to water flows, unsustainable use of natural resources
in-situ conservation
conservation within a species natural habitat. creating national parks, wildlife sanctuaries, international migration routes
ex-situ conservation
conservation of a species outside of its natural habitat. Includes breeding programs, maintenance of endangered species in artificial ecosystems