Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2009.07.016 |
Variation in post-dispersal predation of cactus seeds under nurse plant canopies in three plant associations of a semiarid scrubland in central Mexico | |
Garcia-Chavez, J.2; Sosa, V. J.1; Montana, C.1 | |
通讯作者 | Sosa, V. J. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
![]() |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2010 |
卷号 | 74期号:1页码:54-62 |
英文摘要 | This study compares the post-dispersal predation of seeds from the cacti Myrtillocactus geometrizans and Opuntia pilifera by diurnal vertebrates, nocturnal vertebrates, and ants under nurse plants in three plant associations found in the semiarid scrubland of Tehuacan Valley (Mexico). Experiments on seed removal showed that, regardless of cactus species and plant association, ants were the main seed predators. Predation of M. geometrizans seeds varied depending on plant association and predator type, but it could not be associated with the abundance of granivore guilds; seed predation was more prominent in scrublands dominated by Beaucarnea gracilis. For O. pilifera, seed predation by ants was more intense in scrublands dominated by Neobuxbaumia tetetzo, but there was a significant interaction between plant association and predator type. These results support the existence of spatial variability in interactions between seeds and granivores above the microhabitat scale, which-to varying degrees of intensity-influences the distribution of seeds dispersed by frugivorous animals. This among-plant association variability in seed-granivore interactions, in addition to the within-plant association variability (e.g. nurse canopy vs. open area), should be taken into account when studying the causes of differential recruitment of plant species in arid environments. (C) 2009 Elsevier Ltd. All rights reserved. |
英文关键词 | Myrtillocactus Opuntia Pheidole Pogonomyrmex Post-dispersal predation Tehuacan-Cuicatlan |
类型 | Article |
语种 | 英语 |
国家 | Mexico |
收录类别 | SCI-E |
WOS记录号 | WOS:000272259700007 |
WOS关键词 | SIZE-GRAIN HYPOTHESIS ; SEEDLING ESTABLISHMENT ; NEOBUXBAUMIA-TETETZO ; HABITAT SEGREGATION ; CHIHUAHUAN DESERT ; SPECIES RICHNESS ; TEHUACAN VALLEY ; BODY-SIZE ; ANTS ; SOIL |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/164847 |
作者单位 | 1.Inst Ecol, Xalapa 91000, Veracruz, Mexico; 2.Benemerita Univ Autonoma Puebla, Escuela Biol, Puebla 72570, Mexico |
推荐引用方式 GB/T 7714 | Garcia-Chavez, J.,Sosa, V. J.,Montana, C.. Variation in post-dispersal predation of cactus seeds under nurse plant canopies in three plant associations of a semiarid scrubland in central Mexico[J],2010,74(1):54-62. |
APA | Garcia-Chavez, J.,Sosa, V. J.,&Montana, C..(2010).Variation in post-dispersal predation of cactus seeds under nurse plant canopies in three plant associations of a semiarid scrubland in central Mexico.JOURNAL OF ARID ENVIRONMENTS,74(1),54-62. |
MLA | Garcia-Chavez, J.,et al."Variation in post-dispersal predation of cactus seeds under nurse plant canopies in three plant associations of a semiarid scrubland in central Mexico".JOURNAL OF ARID ENVIRONMENTS 74.1(2010):54-62. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。