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Forage competition between livestock and Mongolian Pika (Ochotona pallasi) in southern Mongolian mountain steppes

Title data

Retzer, Vroni:
Forage competition between livestock and Mongolian Pika (Ochotona pallasi) in southern Mongolian mountain steppes.
In: Basic and Applied Ecology. Vol. 8 (2007) Issue 2 . - pp. 147-157.
ISSN 1439-1791
DOI: https://doi.org/10.1016/j.baae.2006.05.002

Abstract in another language

Nomadic pastoralism is the most suitable form of land use in the semi-arid grasslands of the world and from a pastoralist point of view wild herbivores are considered forage competitors to livestock. Although small mammals are abundant in steppe ecosystems forage competition between small mammals and livestock has rarely been quantified. This study presents the results of an enclosure experiment investigating the forage competition of the Mongolian pika (Ochotonapallasi) and livestock in the Stipa-Allium-steppes of the Gobi Gurvan Saykhan, southern Mongolia. Available forage in the area consists primarily of Stipa krylovii, Agropyron cristatum, and Alliumpolyrrhizum (representing 80 % of available phytomass), all of which are regarded as desirable forage plants. In the drought year of 2001 however, species heights indicated that Allium is avoided by pika and livestock alike while Stipa and Agropyron are intensely browsed. Pika and livestock populate the same habitat and browse the same limited forage species, leading to the conclusion that both herbivore groups compete for forage. Due to their smaller body size, pika are able to consume the vegetation to a lower level and thereby consume more of the available forage, giving them a competitive advantage over the livestock.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER36697
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 18 Jun 2015 06:35
Last Modified: 18 Jun 2015 06:35
URI: https://eref.uni-bayreuth.de/id/eprint/15228