Biodiversity Lecture 2 Flashcards
FLAG SPECIES
Species for which it is easy to obtain resources for
conservation (i.e. pandas)
UMBRELLA SPECIES
Species whose conservation requires the protection of
very large areas and consequently by protecting this
species many others are protected (i.e. elephant)
KEY SPECIES
Species essential to maintain the existing balance in
a given ecological system (i.e. sea otter)
FOCAL SPECIES
A species, or a group of species that identify an area
of spatial and functional needs capable of effectively
understanding those of all the other species in the area
to be protected
Definition of biodiversity
The biodiversity is defined as ‘the variety of life
on Earth at all its levels, from genes to
ecosystems, and the ecological and
evolutionary processes that sustain it
Taxonomic diversity
Number of species
in a given assemblage
Functional diversity
assessing the «role»
of each species present in a given
assemblage
Phylogenetic diversity
considering the
evolutionary history of each species
present in a given assemblage