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Seed removal by scatter-hoarding rodents: The effects of tannin and nutrient concentration
Wang, B; Yang, XL
2015
Source PublicationBEHAVIOURAL PROCESSES
ISSN0376-6357
Volume113Issue:xPages:94-98
AbstractThe mutualistic interaction between scatter-hoarding rodents and seed plants have a long co-evolutionary history. Plants are believed to have evolved traits that influence the foraging behavior of rodents, thus increasing the probability of seed removal and caching, which benefits the establishment of seedlings. Tannin and nutrient content in seeds are considered among the most essential factors in this plant-animal interaction. However, most previous studies used different species of plant seeds, rendering it difficult to tease apart the relative effect of each single nutrient on rodent foraging behavior due to confounding combinations of nutrient contents across seed species. Hence, to further explore how tannin and different nutritional traits of seed affect scatter-hoarding rodent foraging preferences, we manipulated tannin, fat, protein and starch content levels, and also seed size levels by using an artificial seed system. Our results showed that both tannin and various nutrients significantly affected rodent foraging preferences, but were also strongly affected by seed size. In general, rodents preferred to remove seeds with less tannin. Fat addition could counteract the negative effect of tannin on seed removal by rodents, while the effect of protein addition was weaker. Starch by itself had no effect, but it interacted with tannin in a complex way. Our findings shed light on the effects of tannin and nutrient content on seed removal by scatter-hoarding rodents. We therefore, believe that these and perhaps other seed traits should interactively influence this important plant-rodent interaction. However, how selection operates on seed traits to counterbalance these competing interests/factors merits further study. (C) 2015 Elsevier B.V. All rights reserved.
KeywordRodent Seed Dispersal Seed Predation Seed Trait Tannin
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/8673
Collection2012年后新成立研究组
Recommended Citation
GB/T 7714
Wang, B,Yang, XL. Seed removal by scatter-hoarding rodents: The effects of tannin and nutrient concentration[J]. BEHAVIOURAL PROCESSES,2015,113(x):94-98.
APA Wang, B,&Yang, XL.(2015).Seed removal by scatter-hoarding rodents: The effects of tannin and nutrient concentration.BEHAVIOURAL PROCESSES,113(x),94-98.
MLA Wang, B,et al."Seed removal by scatter-hoarding rodents: The effects of tannin and nutrient concentration".BEHAVIOURAL PROCESSES 113.x(2015):94-98.
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