Editing Ecological niche (section)

====Predator partitioning====
Predator partitioning occurs when species are attacked differently by different predators (or [[natural enemy|natural enemies]] more generally).  For example, trees could differentiate their niche if they are consumed by different species of [[specialist predator|specialist herbivores]], such as herbivorous insects.  If a species density declines, so too will the density of its natural enemies, giving it an advantage.  Thus, if each species is constrained by different natural enemies, they will be able to coexist.<ref name=grover1994>{{cite journal |doi=10.1086/285603 |jstor=2462643 |title=Assembly Rules for Communities of Nutrient-Limited Plants and Specialist Herbivores |journal=The American Naturalist |volume=143 |issue=2 |pages=258–82 |year=1994 |last1=Grover |first1=James P |s2cid=84342279 }}</ref>  Early work focused on specialist predators;<ref name=grover1994 /> however, more recent studies have shown that predators do not need to be pure specialists, they simply need to affect each prey species differently.<ref name=Chesson&Kuang2008>{{cite journal|last1=Chesson|first1=Peter|last2=Kuang|first2=Jessica J.|title=The interaction between predation and competition|journal=Nature|date=13 November 2008|volume=456|issue=7219|pages=235–238|doi=10.1038/nature07248|pmid=19005554|bibcode=2008Natur.456..235C|s2cid=4342701}}</ref><ref>{{cite journal|last1=Sedio|first1=Brian E.|last2=Ostling|first2=Annette M.|last3=Ris Lambers|first3=Janneke Hille|title=How specialised must natural enemies be to facilitate coexistence among plants?|journal=Ecology Letters|date=August 2013|volume=16|issue=8|pages=995–1003|doi=10.1111/ele.12130|pmid=23773378|bibcode=2013EcolL..16..995S |hdl=2027.42/99082|url=https://deepblue.lib.umich.edu/bitstream/2027.42/99082/1/ele12130.pdf|hdl-access=free}}</ref>  The [[Janzen–Connell hypothesis]] represents a form of predator partitioning.<ref name=gilbert2005>{{cite book|last1=Gilbert|first1=Gregory|editor1-last=Burlesem|editor1-first=David|editor2-last=Pinard|editor2-first=Michelle|editor3-last=Hartley|editor3-first=Sue|title=Biotic interactions in the tropics: their role in the maintenance of species diversity|date=2005|publisher=Cambridge University Press|location=Cambridge, UK|isbn=9780521609852|pages=[https://archive.org/details/bioticinteractio0000unse/page/141 141–164]|url=https://archive.org/details/bioticinteractio0000unse/page/141}}</ref>