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Welcome to the DragonflyIssuesInEvolution13 Wiki

Together all participants in Project Dragonfly Issues in Evolution Advanced Seminar in Fall 2013 will contribute words, definitions and explanations to a collaborative wiki. We will use this to advance our understanding of biological evolution and, if we are successful, yours.

Sexual Selection

A process in Natural Selection whereby individual organisms gain a genetic (breeding) advantage by attracting mates. This can occur when males of a species attract more females through successful display behavior (vocalization, demonstrations, or appearance) or through dominance of other males.

Lek

lek

1 [lek] Show IPA noun, verb, lekked, lek·king. Animal Behavior . noun

1. A place where males of certain bird or mammal species assemble during breeding season to engage in competitive and territorial displays in order to attract females.
Grackles lekking

Wikipedia photo of male Great-tailed Grackles on a lek. Photograph by Michael J. Plagens, 2007.

"Lekking" is the gathering of males at a lek site. Behavior associated with lekking often consists of ritualized signals to other males in attempts to display dominance or to females to display fitness for breeding.
Black Grouse Lek

Black Grouse Lek

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