Biodiversity Flashcards
negative impacts of human activity on diversity of species
climate change, deforestation and over-fishing
infraspecific competition
competition for resources between individuals of the same species.
interspecific competition
competition for resources between individuals of different species
environment
the external surroundings including all biotic and abiotic factors
species
a group of organisms that can interbreed to produce viable, fertile offspring
population
all the organisms of one species in a particular places at a particular time
community
all the populations of all the species in a particular place in a particular time
habitat
the place, with a distinctive set of conditions, where an organism lives
niche
the role an organisms plays in its environment or how an organism exploits its an environment
2 main sources of genetic diversity
mutations and meiosis
species richness
the number of different species present in a particular habitat at a particular time
endemism
where an organisms distribution is restricted to a specific area