Arid
DOI10.1016/j.jaridenv.2009.09.016
Foraging pits, litter and plant germination in an arid shrubland
James, Alex I.1; Eldridge, David J.1; Moseby, Katherine E.2
通讯作者James, Alex I.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2010
卷号74期号:4页码:516-520
英文摘要

Many animals create soil surface depressions (pits) while foraging for subterranean resources. Foraging pits typically fill with litter, organic debris and seed, retain Moisture, and become hotspots for plant germination. This study aimed to examine whether artificial foraging pits, which mimic those created by Greater bilbies (Macrotis lagotis) and Burrowing bettongs (Bettongia lesueur), develop into patches of enhanced plant germination due to accumulation of leaf litter, or whether physical characteristics of the pits such as temperature and soil moisture influence germination, irrespective of the presence of litter. Compared with the soil surface, significantly more plants germinated in artificially-created foraging pits, irrespective of whether they received added litter. Daytime temperatures were 17-31% (7-11 degrees C) cooler in foraging pits than on the adjacent soil surface, and pits retained significantly more moisture up to 5 days after rainfall. Our results suggest that the mesic conditions in foraging pits may be more important in promoting germination of vascular plants than the presence of litter. (C) 2009 Elsevier Ltd. All rights reserved.


英文关键词Burrowing bettong Ecosystem engineering Fertile patch Foraging digs Foraging pits Fossorial Germination Greater bilby Seedling
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000274931600013
WOS关键词PORCUPINE DIGGINGS ; SEED BANK ; DESERT ; DECOMPOSITION ; COMMUNITY ; DYNAMICS ; RECRUITMENT ; TOPOGRAPHY ; GRASSLAND ; LANDSCAPE
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/2XILL650/164888
作者单位1.Univ New S Wales, Sch Biol Earth & Environm Sci, Dept Environm & Climate Change, Sydney, NSW 2052, Australia;
2.Arid Recovery, Roxby Downs, SA 5725, Australia
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GB/T 7714
James, Alex I.,Eldridge, David J.,Moseby, Katherine E.. Foraging pits, litter and plant germination in an arid shrubland[J],2010,74(4):516-520.
APA James, Alex I.,Eldridge, David J.,&Moseby, Katherine E..(2010).Foraging pits, litter and plant germination in an arid shrubland.JOURNAL OF ARID ENVIRONMENTS,74(4),516-520.
MLA James, Alex I.,et al."Foraging pits, litter and plant germination in an arid shrubland".JOURNAL OF ARID ENVIRONMENTS 74.4(2010):516-520.
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