Microtaxonomy: Species concept and Intrapopulation Variation

• demarcation of species

  microtaxonomy
• the classification of species

  macrotaxonomy
• recognition and description of species and first classification

  alpha-taxonomy
• classification of species in hierarchical systems

  beta-taxonomy
• understanding the evolutionary factors

  gamma-taxonomy
• capable of interbreeding and producing fertile offsprings

  species
• Eidos or “species” – any different kind of thing


  Plato
• Set of individuals closely resembling each other and that it does not essentially differ from the term variety

  darwin
• Specific form “conditioned by function”

  cuvier
• Created by God; possessed an essence in the Aristotelian and religious senses

  linnaeus
• “groups of actually or potentially interbreeding natural populations, which are reproductively isolated from other such groups”

  ernst mayr
• distinct breeding groups existing together within a community

  jordan
• in what order are tenrecs?

  afrotheria
• in what order do hedgehogs belong?

  eulipotyphia
• two types of mimicry

  batesian mimicry

  mullerian mimicry
• mimic resembles a model that is poisonous or unpleasant to eat

  batesian mimicry
• two or more equally poisonous or distateful species have a similar color pattern

  mullerian mimicry
• it is a lineage evolving separately from others with its own unitary evolutionary role and tendencies

  evolutionary species concept
• The smallest diagnosable monophyletic group of populations within which there is a parental pattern of ancestry and descent

  Phylogenetic Species Concept
• 5 prezygotic mechanims

  temporal isolation

  habitat isolation

  behavioral isolation

  mechanical isolation

  gametic isolation
• same geographic area, hadifferent habitats

  habitat isolation