干旱区生态环境知识资源中心(Arid): Excavations of giant armadillos alter environmental conditions and provide new resources for a range of animals

Arid

DOI	10.1111/jzo.12782
	Excavations of giant armadillos alter environmental conditions and provide new resources for a range of animals
	Di Blanco, Y. E.1,2,3; Desbiez, A. L. J.4,5; di Francescantonio, D.1,2; Di Bitetti, M. S.1,2,3
通讯作者	Di Blanco, Y. E.
来源期刊	JOURNAL OF ZOOLOGY
ISSN	0952-8369
EISSN	1469-7998
出版年	2020
卷号	311 期号:4 页码:227-238
英文摘要	Burrowing species can be considered important ecosystem engineers that increase landscape heterogeneity, create subterranean shelters and provide foraging opportunities. We measured and described different aspects of giant armadillo (Priodontes maximus) excavations (size, age), and differences generated in relation to the surrounding environment (vegetation, humidity, temperature) in three sites of the Argentine Chaco Region. We used camera-traps in two protected areas to monitor the use of burrows by other species and tested two primary and non-mutually exclusive hypotheses: Giant armadillo burrows are used as thermal protection from temperature extremes and provide new foraging opportunities for other species. Greater litter cover and depth were recorded in giant armadillo burrows, and more bare ground in spoil piles, producing habitat heterogeneity. Burrows had higher humidity and more moderate temperatures, with lower temperatures during hot months and higher temperatures during cold months. Out of 48 vertebrate species recorded by camera-traps, 27 taxa (17 mammals, 9 birds and one reptile) were recorded using burrows. White-lipped peccaries (Tayassu peccari) and collared peccaries (Pecari tajacu) used burrows more frequently than other mammals. Medium-sized carnivores such as Pampas fox (Lycalopex gymnocercus) and Geoffroy ' s cat (Leopardus geoffroyii) tended to only investigate burrows, probably searching for prey. In no instances, animals other than giant armadillos were recorded staying inside burrows for more than a few seconds. Medium-sized species interacted more frequently than large-sized species, and smaller species used giant armadillo burrows less than larger ones, suggesting that the benefits provided by excavations to other species depend on their body weight. The probability of use of burrows decreases with time, suggesting that burrows provide a finite resource used opportunistically. Further reduction in the distribution of the giant armadillo is therefore likely to have effects on habitat heterogeneity and biodiversity, probably impacting the fitness of species that use their burrows as foraging sources.
英文关键词	burrow commensal burrowing species foraging opportunities ecosystem engineer Priodontes maximus refuge thermal shelter
类型	Article
语种	英语
国家	Argentina ; Brazil ; Scotland
收录类别	SCI-E
WOS记录号	WOS:000536040200001
WOS关键词	PRIODONTES-MAXIMUS ; MICROBIAL COMMUNITIES ; LITTER DECOMPOSITION ; THERMAL REFUGIA ; BURROW USE ; ECOSYSTEM ; EXTRAPOLATION ; RAREFACTION ; DESERT ; FOREST
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318689
作者单位	1.Univ Nacl Misiones UNaM, Consejo Natl Invest Cient & Tecn CONICET, Inst Biol Subtrop IBS, Bertoni 85,N3370BFA, Puerto Iguazu, Misiones, Argentina; 2.Asociac Civil Ctr Invest Bosque Atlantic CeIBA, Puerto Iguazu, Misiones, Argentina; 3.UNaM, Fac Ciencias Forestales, Eldorado, Misiones, Argentina; 4.Inst Conservacao Anim Silvestres ICAS, Campo Grande, MS, Brazil; 5.Royal Zool Soc Scotland RZSS, Edinburgh, Midlothian, Scotland
推荐引用方式 GB/T 7714	Di Blanco, Y. E.,Desbiez, A. L. J.,di Francescantonio, D.,et al. Excavations of giant armadillos alter environmental conditions and provide new resources for a range of animals[J],2020,311(4):227-238.
APA	Di Blanco, Y. E.,Desbiez, A. L. J.,di Francescantonio, D.,&Di Bitetti, M. S..(2020).Excavations of giant armadillos alter environmental conditions and provide new resources for a range of animals.JOURNAL OF ZOOLOGY,311(4),227-238.
MLA	Di Blanco, Y. E.,et al."Excavations of giant armadillos alter environmental conditions and provide new resources for a range of animals".JOURNAL OF ZOOLOGY 311.4(2020):227-238.