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title: Post-dispersal seed predation and its relations with seed traits: a thirty-species-comparative study
author: Gong, Hede;  Tang, ChaoZhi;  Wang, Bo
Issued Date: 2015
Abstract: Post-dispersal seed predation is a key process determining the variability in seed survival in forests, where most seeds are handled by rodents. Seed predation is thought to affect seedling regeneration, colonization ability and spatial distribution of plants. Basic seed traits are the essential factors affecting rodent foraging preferences and thus seed survival and seedling recruitment. Many studies have discussed several seed traits and their effects upon seed predation by rodents. However, the results of those previous studies are usually equivocal, likely because few seed traits and/or plant species tend to be incorporated into these studies. In order to elucidate the relationships between seed predation and seed traits, we surveyed the predation of 48600 seeds in a natural pine forest, belonging to 30 species, for three consecutive years. The results demonstrated that: (i) seed size and seed coat hardness did not significantly affect seed predation; (ii) total phenolics had a negative effect upon seed predation; (iii) positive effects of nitrogen content upon seed predation were found. From our study, it seems that the better strategy to prevent heavy predation is for plants to produce seeds with higher total phenolics content rather than physical defenses (i.e. hard seed coat) or larger seeds. Additionally, rodent foraging preference may depend more on Nitrogen content than other nutrient content of seeds.
Source: PLANT SPECIES BIOLOGY
Related URLs: 10.1111/1442-1984.12051
Appears in Collections:2012年后新成立研究组_期刊论文

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全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Gong, Hede,Tang, ChaoZhi,Wang, Bo. Post-dispersal Seed Predation And Its Relations With Seed Traits: A Thirty-species-comparative Study[J]. Plant Species Biology,2015,30(3):193-201.

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