Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1526-100X.2012.00895.x |
Ecosystem Services from Keystone Species: Diversionary Seeding and Seed-Caching Desert Rodents Can Enhance Indian Ricegrass Seedling Establishment | |
Longland, William S.1; Ostoja, Steven M.2 | |
通讯作者 | Longland, William S. |
来源期刊 | RESTORATION ECOLOGY
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ISSN | 1061-2971 |
EISSN | 1526-100X |
出版年 | 2013 |
卷号 | 21期号:2页码:285-291 |
英文摘要 | Seeds of Indian ricegrass (Achnatherum hymenoides), a native bunchgrass common to sandy soils on arid western rangelands, are naturally dispersed by seed-caching rodent species, particularly Dipodomys spp. (kangaroo rats). These animals cache large quantities of seeds when mature seeds are available on or beneath plants and recover most of their caches for consumption during the remainder of the year. Unrecovered seeds in caches account for the vast majority of Indian ricegrass seedling recruitment. We applied three different densities of white millet (Panicum miliaceum) seeds as diversionary foods to plots at three Great Basin study sites in an attempt to reduce rodents’ over-winter cache recovery so that more Indian ricegrass seeds would remain in soil seedbanks and potentially establish new seedlings. One year after diversionary seed application, a moderate level of Indian ricegrass seedling recruitment occurred at two of our study sites in western Nevada, although there was no recruitment at the third site in eastern California. At both Nevada sites, the number of Indian ricegrass seedlings sampled along transects was significantly greater on all plots treated with diversionary seeds than on non-seeded control plots. However, the density of diversionary seeds applied to plots had a marginally non-significant effect on seedling recruitment, and it was not correlated with recruitment patterns among plots. Results suggest that application of a diversionary seed type that is preferred by seed-caching rodents provides a promising passive restoration strategy for target plant species that are dispersed by these rodents. |
英文关键词 | Achnatherum hymenoides animal-mediated seed dispersal Dipodomys merriami Great Basin heteromyid rodents kangaroo rats passive restoration scatterhoarding |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000316075000022 |
WOS关键词 | ASSOCIATIONAL RESISTANCE ; ORYZOPSIS-HYMENOIDES ; HETEROMYID RODENTS ; FOREST RESTORATION ; DISPERSAL ; RECRUITMENT ; BIRDS ; TREES ; PREFERENCES ; POPULATIONS |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179769 |
作者单位 | 1.ARS, USDA, Reno, NV 89512 USA; 2.US Geol Survey, Western Ecol Res Ctr, Yosemite Field Stn, Oakhurst, CA 93644 USA |
推荐引用方式 GB/T 7714 | Longland, William S.,Ostoja, Steven M.. Ecosystem Services from Keystone Species: Diversionary Seeding and Seed-Caching Desert Rodents Can Enhance Indian Ricegrass Seedling Establishment[J]. United States Geological Survey,2013,21(2):285-291. |
APA | Longland, William S.,&Ostoja, Steven M..(2013).Ecosystem Services from Keystone Species: Diversionary Seeding and Seed-Caching Desert Rodents Can Enhance Indian Ricegrass Seedling Establishment.RESTORATION ECOLOGY,21(2),285-291. |
MLA | Longland, William S.,et al."Ecosystem Services from Keystone Species: Diversionary Seeding and Seed-Caching Desert Rodents Can Enhance Indian Ricegrass Seedling Establishment".RESTORATION ECOLOGY 21.2(2013):285-291. |
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