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Seed traits and burial state affect plant seed secondary dispersal mediated by rodents

文献类型： 外文期刊

作者： Cheng, Jiming 1 ; Yan, Xingfu 1 ; Zhang, Jinfeng 4 ; Zhang, Chao 2 ; Zhang, Min 2 ; Wei, Shuhua 5 ; Wang, Jiazhi 6 ; Luo, Yonghong 1 ;

作者机构： 1.North Minzu Univ, Coll Biol Sci & Engn, Yinchuan 750021, Peoples R China

2.Cent China Normal Univ, Sch Life Sci, Wuhan 430079, Peoples R China

3.Natl Ethn Affairs Commiss Peoples Republ China, Key Lab Ecol Protect Agropastoral Ecotones Yellow, Yinchuan 750021, Peoples R China

4.Qinghai Normal Univ, Coll Life Sci, Xining 810016, Peoples R China

5.Ningxia Acad Agr & Forestry Sci, Plant Protect Inst, Yinchuan 750021, Peoples R China

6.Chengde Meteorol Disaster Prevent Ctr Hebei Prov, Chengde 067000, Hebei, Peoples R China

7.Inner Mongolia Univ, Sch Ecol & Environm, Hohhot 010000, Peoples R China

关键词： Plant expansion; Plant regeneration; Seed sizes; Soil burial; Seed peeling; Scatter-hoarding

期刊名称：HELIYON （ 影响因子：3.4； 五年影响因子：3.9 ）

ISSN：

年卷期： 2024 年 10 卷 12 期

页码：

收录情况： SCI

摘要： Seed dispersal is an important ecological process and has important implications for plant population expansion and regeneration. Seed dispersal not only reduces the probability of death due to seed density but also facilitates seedling establishment. Many studies have focused on the effect of one or two factors on seed dispersal. However, little is known about studies on the effect of multiple factors and their interactions on seed dispersal. Here, we conducted a field experiment to explore how seed size, soil burial, and seed peeling affect the dispersal and hoarding of seeds of Quercus liaotungensis in dispersal animals. We found that large seeds were preferentially selected by animals, and the predation after dispersal, hoarding after dispersal, predation distance after dispersal, and hoarding distance after dispersal of large seeds were significantly greater than small seeds, which is more beneficial to the plant expansion and regeneration. Soil burial increased the time of seed intact in situ, significantly increased predation in situ, and reduced predation after dispersal, predation distance after dispersal, and hoarding distance after dispersal, which is not beneficial to the plant population expansion and regeneration. Seed peeling reduced the time of seed intact in situ, and the predation after dispersal was significantly greater than that of unpeeled seeds, which is not beneficial to the plant population. We did not find the interactions between seed size, soil burial, and seed peeling on dispersal. The effects of a single factor may be more than their interactions between seed size, soil burial and seed peeling on dispersal. These results implied that seed size, soil burial and seed peeling may affect plant population expansion and regeneration by affecting the dispersal and hoarding of animals.

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