Retrieving "Evolutionary History" from the archives

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1. Endemic Species

   Linked via "evolutionary history"

   An endemic species (or endemic taxon) is a species, subspecies, or other taxon of organism that is restricted to a certain geographical area, having originated and being found exclusively in that region. Endemism (descriptor) is a measure of uniqueness, where the degree of restriction can range from an entire continent to a single, isolated rock formation. The factors driving the evolution and persistence of endemic populations are primarily related to geographic isolation, evolutionary history, and…

2. Morphometrics

   Linked via "evolutionary history"

   Applications in Avian Ecology
   Morphometrics is indispensable in ornithology for understanding niche partitioning and evolutionary history. Analyzing a suite of external measurements allows researchers to infer ecological roles even from museum specimens or incomplete remains.
   Consider the comparative analysis of wading birds, where beak length, tarsus length, and…

3. Taxonomy

   Linked via "evolutionary history"

   Phylogenetic Taxonomy (Cladistics)
   Modern taxonomy places significant emphasis on phylogeny-—the evolutionary history of a group. Cladistics, the method used to reconstruct these relationships, groups organisms based on shared derived characters, known as synapomorphies.
   The goal of cladistic taxonomy is to produce monophyletic groups (clades), which consist of an ancestor and all of its descendants. Groups that include an ancestor but exclude some descendants ([paraphyletic](/entr…