Species Concepts, Taxonomy & Recording Biodiversity

Question 1

What are the 5 species concepts?

Answer 1

• Biological
• Morphological
• Ecological
• Evolutionary
• Phylogenetic

Question 2

What is the biological species concept?

Answer 2

Groups of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups

Question 3

What is the morphological species concept?

Answer 3

A species is a community, or a number of related communities, whose distinctive morphological characters are, in the opinion of a competent systematic, sufficiently definite to entitle it, or them, to a specific name

Question 4

What is the ecological species concept?

Answer 4

A species is a lineage (or closely related set of lineages) which occupies an adaptive zine minimally different from that of any other lineage in its range & which evolves separately from all lineages outside its range

Question 5

What is the evolutionary species concept?

Answer 5

An evolutionary species is a single lineage of ancestor-dependent populations of organisms which maintains its identity from other such lineages & which has its own evolutionary tendencies & historical fate

Question 6

What is the phylogenetic species concept?

Answer 6

Species are branches in a lines. Based on patterns of character distributions & is therefore consistent with the full range of possible evolutionary processes that contribute to species formation

Question 7

What are 3 problems with quantifyingbiodiversity?

Answer 7

1- Scale: small organisms are more likely to be under estimated
2- Accessibility: some places are easier to survey than others
3- Anthropocentric effects: cultural priorities, trends in scientific interest/funding m, limitation of senses