Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2008.09.014 |
Diet of a fossorial rodent (Octodontidae), above-ground food availability, and changes related to cattle grazing in the Central Monte (Argentina) | |
Rosi, M. I.1; Puig, S.1; Cona, M. I.1; Videla, F.1; Mendez, E.2; Roig, V. G.1 | |
通讯作者 | Rosi, M. I. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
出版年 | 2009 |
卷号 | 73期号:3页码:273-279 |
英文摘要 | Overgrazing by livestock has Caused desertification in the Monte, where ctenomyids and livestock share grasses as main food items. The diet of Ctenomys eremophilus, above-ground food availability and changes related to cattle grazing are analyzed in the arid plain of Mendoza, Argentina. The most available categories were grasses, followed by low shrubs and tall shrubs. Tuco-tucos showed dietary generalism, ate mainly above-ground plant parts, preferred grasses and avoided shrubs at both grazed and ungrazed sites. Plant cover, grass diversity and availability decreased under livestock grazing, which was reflected in the diet by a lower percentage of grasses, a shift toward low shrubs and higher number of frequently used resources, Tuco-tucos in the grazed paddock compensated for lower consumption of vegetative plant parts by increasing the use of Prosopis flexuosa pods stored inside burrows. Moreover, greater dietary variation among individuals suggests foraging restricted to the items closest to burrow holes. These feeding tactics would allow them to reduce above-ground foraging as a response to high raptor predation risk due to increased bare soil. The plant recovery detected during the rest period, favoured by moderate stocking rate and rotational grazing system, Would allow coexistence of tuco-tucos and cattle. (C) 2008 Elsevier Ltd. All rights reserved. |
英文关键词 | Arid environment Ctenomys Feeding strategies Livestock grazing Subterranean mammals |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000263791100005 |
WOS关键词 | ARID RANGELANDS ; PREDATION RISK ; MENDOZA PLAIN ; SMALL MAMMALS ; DESERT ; POPULATIONS ; VEGETATION ; DIVERSITY ; SYSTEMS ; CAVIES |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/161272 |
作者单位 | 1.IADIZA, Grp Ecol & Manejo Vertebrados Silvestres, RA-5500 Mendoza, Argentina; 2.IADIZA, Grp Bot & Fitosociol, RA-5500 Mendoza, Argentina |
推荐引用方式 GB/T 7714 | Rosi, M. I.,Puig, S.,Cona, M. I.,et al. Diet of a fossorial rodent (Octodontidae), above-ground food availability, and changes related to cattle grazing in the Central Monte (Argentina)[J],2009,73(3):273-279. |
APA | Rosi, M. I.,Puig, S.,Cona, M. I.,Videla, F.,Mendez, E.,&Roig, V. G..(2009).Diet of a fossorial rodent (Octodontidae), above-ground food availability, and changes related to cattle grazing in the Central Monte (Argentina).JOURNAL OF ARID ENVIRONMENTS,73(3),273-279. |
MLA | Rosi, M. I.,et al."Diet of a fossorial rodent (Octodontidae), above-ground food availability, and changes related to cattle grazing in the Central Monte (Argentina)".JOURNAL OF ARID ENVIRONMENTS 73.3(2009):273-279. |
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