Editing Ecological niche (section)

====Conditional differentiation====
'''Conditional differentiation''' (sometimes called '''temporal niche partitioning''') occurs when species differ in their competitive abilities based on varying environmental conditions. For example, in the [[Sonoran Desert]], some [[annual plant]]s are more successful during wet years, while others are more successful during dry years.<ref name=Angert_etal_2009>{{cite journal|last1=Angert|first1=Amy L.|last2=Huxman|first2=Travis E.|last3=Chesson|first3=Peter|last4=Venable|first4=D. Lawrence|title=Functional tradeoffs determine species coexistence via the storage effect|journal=Proceedings of the National Academy of Sciences|date=14 July 2009|volume=106|issue=28|pages=11641–11645|doi=10.1073/pnas.0904512106|pmid=19571002|pmc=2710622|bibcode=2009PNAS..10611641A|doi-access=free}}</ref>  As a result, each species will have an advantage in some years, but not others.  When environmental conditions are most favorable, individuals will tend to compete most strongly with member of the same species.  For example, in a dry year, dry-adapted plants will tend to be most limited by other dry-adapted plants.<ref name=Angert_etal_2009 />  This can help them to coexist through a [[storage effect]].