Abstract：
:Across multiple taxa, population structure and dynamics depend on effective signalling between individuals. Among mammals, chemical communication is arguably the most important sense, underpinning mate choice, parental care, territoriality and even disease transmission. There is a growing body of evidence that odours signal genetic information that may confer considerable benefits including inbreeding avoidance and nepotism. To date, however, there has been no clear evidence that odours encode population-level information in wild mammals. Here we demonstrate for the first time the existence of 'odour dialects' in genetically distinct mammalian subpopulations across a large geographical scale. We found that otters, Lutra lutra, from across the United Kingdom possess sex and biogeography-specific odours. Subpopulations with the most distinctive odour profiles are also the most genetically diverse but not the most genetically differentiated. Furthermore, geographic distance between individuals does not explain regional odour differences, refuting other potential explanations such as group odour sharing behaviour. Differences in the language of odours between subpopulations have the potential to affect individual interactions, which could impact reproduction and gene-flow.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kean EF,Bruford MW,Russo IM,Müller CT,Chadwick EAdoi
10.1038/s41598-017-12706-8subject
Has Abstractpub_date
2017-10-19 00:00:00pages
13593issue
1issn
2045-2322pii
10.1038/s41598-017-12706-8journal_volume
7pub_type
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