Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| FORAGING STRATEGY OF PLATEAU ZOKORS (EOSPALAX BAILEYI THOMAS) WHEN COLLECTING FOOD FOR WINTER CACHES | |
| Xie, Jiu-Xiang1,2,3; Lin, Gong-Hua1; Zhang, Tong-Zuo1; Su, Jian Ping1 | |
| 2014 | |
| 发表期刊 | POLISH JOURNAL OF ECOLOGY
 |
| ISSN | 1505-2249 |
| 卷号 | 62期号:1页码:173-182 |
| 文章类型 | Article |
| 摘要 | Subterranean life style is characterized by limited food resource and energy consuming burrow behavior. Subterranean rodents are usually recognized as dietary generalists. In the current study, we investigated the species composition of winter caches of plateau zokors (Eospalax baileyi), and the dissimilarity of species composition in caches and in the vicinity of the burrows. We have made our research in Kobresia dominated vegetation at the altitude 3200 m a.s.l. We used the non-parametric method to test the similarities between the relative dry mass of the plant species within caches and their closed vicinity. This method was based on measures of distance between pairs of individual multivariate observations. Our results revealed that although plateau zokors cached most (60) of the plant species found in the vicinity of their burrow systems (66), the cached dry mass was dominated by a few species. Nine plant species accounted for 80% dry mass of plants present in zokors' caches, Polygonum viviparum (50%) and other perennial poisonous forbs constitute 70% dry mass of the caches. Results showed that the dissimilarity between the relative dry mass of plant species within caches and in their vicinity was extremely significant (for Bray-Curtis distance measure, R = 0.355, P = 0.000; for Euclidean distance measure R =0.319, P =0.000). These results showed that plateau zokors don't forage randomly when collecting food for winter caches. We suppose that rather than using a non-selective foraging strategy by dealing with high fiber-content plants, plateau zokors have forged another dietary strategy to meet the energy demands in the evolutionary process: to deal with poisonous forbs.; Subterranean life style is characterized by limited food resource and energy consuming burrow behavior. Subterranean rodents are usually recognized as dietary generalists. In the current study, we investigated the species composition of winter caches of plateau zokors (Eospalax baileyi), and the dissimilarity of species composition in caches and in the vicinity of the burrows. We have made our research in Kobresia dominated vegetation at the altitude 3200 m a.s.l. We used the non-parametric method to test the similarities between the relative dry mass of the plant species within caches and their closed vicinity. This method was based on measures of distance between pairs of individual multivariate observations. Our results revealed that although plateau zokors cached most (60) of the plant species found in the vicinity of their burrow systems (66), the cached dry mass was dominated by a few species. Nine plant species accounted for 80% dry mass of plants present in zokors' caches, Polygonum viviparum (50%) and other perennial poisonous forbs constitute 70% dry mass of the caches. Results showed that the dissimilarity between the relative dry mass of plant species within caches and in their vicinity was extremely significant (for Bray-Curtis distance measure, R = 0.355, P = 0.000; for Euclidean distance measure R =0.319, P =0.000). These results showed that plateau zokors don't forage randomly when collecting food for winter caches. We suppose that rather than using a non-selective foraging strategy by dealing with high fiber-content plants, plateau zokors have forged another dietary strategy to meet the energy demands in the evolutionary process: to deal with poisonous forbs. |
| 关键词 | Diet Selection Foraging Strategy Poisonous Forbs Qinghai-tibetan Plateau Subterranean Rodents |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 关键词[WOS] | POCKET GOPHERS ; MYOSPALAX-FONTANIERII ; DIETARY PREFERENCES ; SUBTERRANEAN RODENT ; TIBETAN PLATEAU ; THOMOMYS-BOTTAE ; HERBIVORES ; MAMMALS ; DIVERGENCE ; MECHANISM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| WOS记录号 | WOS:000333442000015 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/4281 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Evolut & Adaptat Plateau Biota, Northwest Inst Plateau Biol, Xining 810001, Qinghai, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Qinghai Univ, Dept Grass Sci, Xining 810016, Qinghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Jiu-Xiang,Lin, Gong-Hua,Zhang, Tong-Zuo,et al. FORAGING STRATEGY OF PLATEAU ZOKORS (EOSPALAX BAILEYI THOMAS) WHEN COLLECTING FOOD FOR WINTER CACHES[J]. POLISH JOURNAL OF ECOLOGY,2014,62(1):173-182. |
| APA | Xie, Jiu-Xiang,Lin, Gong-Hua,Zhang, Tong-Zuo,&Su, Jian Ping.(2014).FORAGING STRATEGY OF PLATEAU ZOKORS (EOSPALAX BAILEYI THOMAS) WHEN COLLECTING FOOD FOR WINTER CACHES.POLISH JOURNAL OF ECOLOGY,62(1),173-182. |
| MLA | Xie, Jiu-Xiang,et al."FORAGING STRATEGY OF PLATEAU ZOKORS (EOSPALAX BAILEYI THOMAS) WHEN COLLECTING FOOD FOR WINTER CACHES".POLISH JOURNAL OF ECOLOGY 62.1(2014):173-182. |
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