Galapagos land iguana (Conolophus subcristatus) as a seed disperser

被引：11

作者：

Traveset, Anna ^{[1
]}

Nogales, Manuel ^{[2
]}

Vargas, Pablo ^{[3
]}

Rumeu, Beatriz ^{[4
]}

Olesen, Jens M. ^{[5
]}

Jaramillo, Patricia ^{[6
]}

Heleno, Ruben ^{[4
]}

机构：

[1] CSIC UIB, Inst Mediterrani Estudis Avancats, C Miquel Marques 21, Mallorca 07190, Balearic Island, Spain

[2] Inst Prod Nat & Agrobiol, Isl Ecol & Evolut Res Grp CSIC IPNA, Tenerife 38206, Canary Islands, Spain

[3] CSIC RJB, Real Jardin Bot, Dept Biodivers & Conservat, Plaza Murillo 2, Madrid 28014, Spain

[4] Univ Coimbra, Dept Life Sci, Ctr Funct Ecol, P-3000456 Coimbra, Portugal

[5] Aarhus Univ, Inst Biosci, Aarhus, Denmark

[6] Charles Darwin Fdn, Galapagos, Quito, Ecuador

来源：

INTEGRATIVE ZOOLOGY | 2016年 / 11卷 / 03期

关键词：

Conolophus subcristatus; Fernandina Island; Galapagos Islands Saurochory; seed dispersal; GREEN IGUANA; ISLAND; FOREST; FERNANDINA; ECOLOGY; PLANTS; DIET;

D O I：

10.1111/1749-4877.12187

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The role of the most common land iguana (Conolophus subcristatus) in the Galapagos 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 Galapagos C. subcristatus plays an important role as a seed disperser of not only of native species but also some introduced plants in the Galapagos Islands.

引用

页码：207 / 213

页数：7

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