Skip to main content

Island biogeography of the Japanese terrestrial mammal assemblages: an example of a relict fauna

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

Summary

AimThe aim of this paper is to provide a review of the biogeography of the terrestrial mammalian fauna from the Japanese islands.

LocationThe Japanese archipelago is located off the eastern coast of Asia. It extends over a distance of approximately 2000 km in length, from north to south, and comprises more than 3900 islands of widely differing areas.

MethodsThe list of the living and Quaternary mammalian fauna of Japan and its geographical distribution was compiled from various published works. Introduced species, marine mammals and bats were not considered in this study. Simpson and Jaccard indices were used to quantify the similarities between the fauna from twelve selected islands from the Japanese archipelago. Regression lines and Pearson correlation coefficients were used to describe the relations between species richness and various geographical factors of the islands, such as area or descriptors of isolation. Lastly, we used the method proposed by Atmar & Patterson (1993) to measure the degree of nestedness of the Japanese terrestrial mammalian fauna.

ResultsSpecies richness on islands is highly correlated with island size. However, this study reveals the importance of non-equilibrium effects. At a large scale, the current distribution of mammals in Japan seems to be due to selective post-glacial extinction processes. A large proportion of the Japanese mammals are endemic forms, and extinctions were not balanced by the colonization of species from the Asiatic mainland. In addition, we show the major role played by inter-island dispersal processes, in particular from larger islands towards smaller ones, that are mainly effected by the presence of deep marine channels between islands.

Main conclusionsThe present distribution of the terrestrial mammalian fauna from Japan is thus mainly the result of post-glacial extinctions that were not compensated for by colonization of new species from the faunal Asiatic mainland source pool. However, this study emphasizes the importance of inter-island dispersal processes.

Keywords: Island biogeography; Japan; land-bridge islands; terrestrial mammals

Document Type: Original Article

DOI: http://dx.doi.org/10.1046/j.1365-2699.1999.00346.x

Affiliations: Institut des Sciences de l’Evolution, UniversitĂ© Montpellier II, cc 64 place Eugène Bataillon, 34095 Montpellier cedex 5, France

Publication date: September 1, 1999

bsc/jbiog/1999/00000026/00000005/art00003
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more