Arid
DOI10.1186/s40693-018-0079-4
Frugivory and seed dispersal in the endemic cactus Eulychnia acida: extending the anachronism hypothesis to the Chilean Mediterranean ecosystem
Cares, Rocio A.1; Saez-Cordovez, Consuelo1; Valiente-Banuet, Alfonso2; Medel, Rodrigo1; Botto-Mahan, Carezza1
通讯作者Medel, Rodrigo
来源期刊REVISTA CHILENA DE HISTORIA NATURAL
ISSN0716-078X
EISSN0717-6317
出版年2018
卷号91
英文摘要

Background: Eulychnia acida is an endemic Chilean cactus species whose fruits show several traits that, taken as a whole, are compatible with a seed dispersal syndrome by large herbivore vertebrates. Since only a few large native mammals exist in Chile at present, cactus fruit consumption and seed dispersal may be coopted by introduced mammals as predicted by Janzen and Martin’s (1982) hypothesis for tropical ecosystems.


Findings: We describe the current frugivore species of E. acida in a protected semiarid-Mediterranean ecosystem using field measurements and feeding experiments. In addition, to examine a potential role as seed dispersers of the cactus species, we offered fruits and performed germination tests on seeds defecated by Lama guanicoe and the introduced goat Capra a. hircus under captivity conditions. Our data indicate that while fruits of E. acida are pecked by the Chilean tinamou, Nothoprocta perdicaria, and the Chilean mockingbird, Mimus thenca, and eaten by the brush-tailed rodent, Octodon degus, none of these species could be considered a legitimate seed disperser. Unlike L. guanicoe, the goat C. a. hircus did not reduce seed germination, having a neutral effect.


Conclusions: Results from this study indicate that introduced C. a. hircus was the only species showing a potential role in the seed dispersal process of E. acida. In the absence of native frugivore species, goats might play an important role in population recruitment of the endemic cactus. These results extend Janzen and Martin’s (1982) anachronism hypothesis to the Chilean Mediterranean ecosystem.


英文关键词Eulychnia acida Seed dispersal Frugivory Seeds Goats Lama guanicoe Octodon degus Anachronism
类型Article
语种英语
国家Chile ; Mexico
收录类别SCI-E
WOS记录号WOS:000446627800001
WOS关键词SEMIARID CHILE ; QUANTITY ; PATTERNS ; ECOLOGY ; FRUITS ; DESERT ; SYSTEM
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构Universidad Nacional Autónoma de México
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212780
作者单位1.Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Las Palmeras 3425, Santiago, Chile;
2.Univ Nacl Autonoma Mexico, Inst Ecol, Apartado Postal 70-275, Coyoacan 04510, DF, Mexico
推荐引用方式
GB/T 7714
Cares, Rocio A.,Saez-Cordovez, Consuelo,Valiente-Banuet, Alfonso,et al. Frugivory and seed dispersal in the endemic cactus Eulychnia acida: extending the anachronism hypothesis to the Chilean Mediterranean ecosystem[J]. Universidad Nacional Autónoma de México,2018,91.
APA Cares, Rocio A.,Saez-Cordovez, Consuelo,Valiente-Banuet, Alfonso,Medel, Rodrigo,&Botto-Mahan, Carezza.(2018).Frugivory and seed dispersal in the endemic cactus Eulychnia acida: extending the anachronism hypothesis to the Chilean Mediterranean ecosystem.REVISTA CHILENA DE HISTORIA NATURAL,91.
MLA Cares, Rocio A.,et al."Frugivory and seed dispersal in the endemic cactus Eulychnia acida: extending the anachronism hypothesis to the Chilean Mediterranean ecosystem".REVISTA CHILENA DE HISTORIA NATURAL 91(2018).
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