Editing Habitat fragmentation (section)

=== Endogenous vs. exogenous  ===
The two types of processes that can lead to habitat fragmentation are known as endogenous processes and exogenous processes. Endogenous is a process that develops as a part of species biology so they typically include changes in biology, behavior, and interactions within or between species. Endogenous threats can result in changes to breeding patterns or migration patterns and are often triggered by exogenous processes. Exogenous processes are independent of species biology and can include habitat degradation, habitat subdivision or habitat isolation. These processes can have a substantial impact on endogenous processes by fundamentally altering species behavior. Habitat subdivision or isolation can lead to changes in dispersal or movement of species including changes to seasonal migration. These changes can lead to a decrease in a density of species, increased competition or even increased predation.<ref>{{cite journal|last1=Fischer|first1=Joern|last2=Lindenmayer|first2=David B.|date=February 7, 2007|title=Landscape Modification and Habitat Fragmentation: A synthesis|journal=Global Ecology and Biogeography|volume=16|issue=3|pages=265–280|doi=10.1111/j.1466-8238.2007.00287.x|bibcode=2007GloEB..16..265F |ref=1|doi-access=free}}</ref>