Editing Ecotone (section)

==Examples==
* The Kra ecotone between 11°N and 13°N latitude just north of the [[Kra Isthmus]] that connects the [[Thai-Malay Peninsula]] with mainland [[Asia]] is an example of a regional scale ecotone.<ref name=HoA2011>{{cite book |doi=10.1007/978-3-642-16422-4_4 |chapter=Asian Honeybees and Mitochondrial DNA |title=Honeybees of Asia |pages=69–93 |year=2011 |last1=Smith |first1=Deborah R |isbn=978-3-642-16421-7 }}</ref> It marks the transition zone between the moist [[deciduous]] forest in the mainland [[Southeast Asia]] [[biogeographical]] region in the north and the wet seasonal [[dipterocarp]] forest in the [[Sundaland]] region in the south.<ref name=HoA2011/> It has been shown to be the biogeographical transition between Indochinese and Sundaic faunas.<ref name=Hughes2003/> Approximately 152 species of bird were found to have northern or southern range limits between these latitudes.<ref name=Hughes2003>{{cite journal |doi=10.1046/j.1365-2699.2003.00847.x |title=The Indochinese-Sundaic faunal transition at the Isthmus of Kra: An analysis of resident forest bird species distributions |journal=Journal of Biogeography |volume=30 |issue=4 |pages=569–80 |year=2003 |last1=Hughes |first1=Jennifer B |last2=Round |first2=Philip D |last3=Woodruff |first3=David S |bibcode=2003JBiog..30..569H |s2cid=55953315 }}</ref> [[Population genetics]] studies have also found that the Kra ecotone is the major physical barrier that limits gene flow in the honeybees ''[[Apis cerana]]'' and ''[[Apis dorsata]]'' and the stingless bees ''[[Trigona collina]]'' and ''[[Trigona pagdeni]]''.<ref name=Theeraapisakkun2010>{{cite journal |doi=10.4238/vol9-2gmr775 |pmid=20486087 |title=Development of a species-diagnostic marker and its application for population genetics studies of the stingless bee Trigona collina in Thailand |journal=Genetics and Molecular Research |volume=9 |issue=2 |pages=919–30 |year=2010 |last1=Theeraapisakkun |first1=M |last2=Klinbunga |first2=S |last3=Sittipraneed |first3=S |doi-access=free }}</ref>
* The [[Wallace Line]] running through the [[Lombok Strait]] between the [[Indonesia]]n islands of [[Bali]] and [[Lombok]] is a faunal boundary that separates the [[Indomalayan realm]] from [[Wallacea]].<ref>{{cite journal |doi=10.1128/JVI.00723-16 |pmid=27384662 |pmc=5008096 |title=Endogenous Gibbon Ape Leukemia Virus Identified in a Rodent (Melomys burtoni subsp.) from Wallacea (Indonesia) |journal=Journal of Virology |volume=90 |issue=18 |pages=8169–80 |year=2016 |last1=Alfano |first1=Niccolò |last2=Michaux |first2=Johan |last3=Morand |first3=Serge |last4=Aplin |first4=Ken |last5=Tsangaras |first5=Kyriakos |last6=Löber |first6=Ulrike |last7=Fabre |first7=Pierre-Henri |last8=Fitriana |first8=Yuli |last9=Semiadi |first9=Gono |last10=Ishida |first10=Yasuko |last11=Helgen |first11=Kristofer M |last12=Roca |first12=Alfred L |last13=Eiden |first13=Maribeth V |last14=Greenwood |first14=Alex D }}</ref> It is named for [[Alfred Russel Wallace]], who first observed the abrupt boundary between the two [[biomes]] in 1859. Biologists believe it was the depth of the Lombok Strait itself that kept the animals on either side isolated from one another.  However, it has been found that some flightless animals such as certain weevil species have, in the past, been involved in several transgression events in which species from land east of the Wallace Line relocated to Bali.<ref>{{cite journal |doi=10.1098/rspb.2013.2528 |pmid=24648218 |pmc=3973253 |title=Multiple transgressions of Wallace's Line explain diversity of flightless Trigonopterus weevils on Bali |journal=Proceedings of the Royal Society B: Biological Sciences |volume=281 |issue=1782 |pages=20132528 |year=2014 |last1=Tanzler |first1=R |last2=Toussaint |first2=E. F. A |last3=Suhardjono |first3=Y. R |last4=Balke |first4=M |last5=Riedel |first5=A }}</ref> When sea levels dropped during the [[Pleistocene]] [[ice age]], the islands of Bali, [[Java (island)|Java]] and [[Sumatra]] were all connected to one another and to the mainland of [[Asia]].  They shared the Asian fauna.  The Lombok Strait's deep water kept Lombok and the [[Lesser Sunda Islands|Lesser Sunda archipelago]] isolated from the Asian mainland.  These islands were, instead, colonized by Australasian fauna.
* [[Mbam Djerem National Park]]'s ecotone in [[Cameroon]] is up to 1,000&nbsp;km wide in places and differences within species are believed to be precursors to [[speciation]].<ref>{{cite magazine|magazine=New Scientist|date=11 June 2016|author=Steve Nadis|title=Life on the edge}}</ref>
* General examples of ecotones include [[salt marsh]]es and [[riparian zone]]s.