Galápagos land iguana(Conolophus subcristatus)as a seed disperser  

作　　者：Anna TRAVESET Manuel NOGALES Pablo VARGAS Beatriz RUMEU Jens M.OLESEN 

机构地区：[1]Esporles,Mallorca 07190,Balearic Islands,Spain [2]Island Ecology and Evolution Research Group(CSIC-IPNA),Instituto de Productos Naturales y Agrobiología,38206 Tenerife,Canary Islands,Spain [3]Real Jardín Botánico(CSIC-RJB),Department of Biodiversity and Conservation,Plaza de Murillo 2,28014 Madrid,Spain [4]Centre for Functional Ecology,Department of Life Sciences,University of Coimbra,Calçada Martim de Freitas,Coimbra 3000-456,Portugal [5]Institute of Bioscience,Aarhus University,Aarhus,Denmark and 6Charles Darwin Foundation,Puerto Ayora,Santa Cruz,Galápagos,Quito,Ecuador

出　　处：《Integrative Zoology》2016年第3期207-213,共7页整合动物学（英文版）

基　　金：This study is framed within two projects partially fi­nanced by Fundación BBVA(Spain)and Ministerio de Economía y Competitividad(CGL2013-44386-P);We are also grateful to the Charles Darwin Station and Galápagos National Park(research permits nos.PC-026-09 and PC-04-11)for logistic support in this archipel­ago.R.H.was funded by the FCT grant IF/00441/2013(Portugal)and the Marie Curie Action CIG-321794(Eu­ropean Union).

摘　　要：The role of the most common land iguana(Conolophus subcristatus)in the Galápagos Islands as an effective seed disperser is explored in this study.A total of 5705 seeds of 32 plant species were identified from 160 scats,4545 of which(80%)appeared visually undamaged.Germination trials of 849 seeds from 29 species revealed that at least 10 species remained viable after passing through the iguana’s gut,although only a small propor­tion of those seeds(4%)germinated.In any case,we argue that C.subcristatus exerts an important role on the 7 Galapagos islands where it occurs because of its abundance and capacity to ingest and disperse seeds at long distances.Our results strongly suggest that the Galápagos C.subcristatus plays an important role as a seed dis­perser of not only of native species but also some introduced plants in the Galápagos Islands.

关 键 词：Conolophus subcristatus Fernandina Island Galápagos Islands Saurochory seed dispersal 

分 类 号：U49[交通运输工程—交通运输规划与管理]