干旱区生态环境知识资源中心(Arid): Ecological engineers' nests benefit plant recovery following fire in a semiarid grassland, New Mexico, USA

Arid

DOI	10.1111/jvs.12755
	Ecological engineers' nests benefit plant recovery following fire in a semiarid grassland, New Mexico, USA
	Nicolai, Nancy
通讯作者	Nicolai, Nancy
来源期刊	JOURNAL OF VEGETATION SCIENCE
ISSN	1100-9233
EISSN	1654-1103
出版年	2019
卷号	30 期号:4 页码:709-719
英文摘要	Questions Ants and rodents are recognized as ecosystem engineers worldwide creating soil-modified nests and adjacent edges with superior resources. The influence of Dipodomys spectabilis (rat) and Pogonomyrmex rugosus (ant) on nests and edges would be similar in burned and unburned habitat on functional groups' cover, density, number of inflorescences and species number. We hypothesize that annual and perennial dicots would recover faster on rat patches than on burned grassland, dicots and grasses would recover faster on ant patches than on burned grassland, and annual dicots would recover faster on rat than on ant patches, whereas grasses would recover faster on ant than on rat patches. Location Semiarid grassland, Sevilleta National Wildlife Refuge, New Mexico, USA. Methods We analyzed annual and perennial dicots, grasses and subshrubs in burned and unburned plots at 80 nests during cool- and warm-seasons two years post-fire. Data were collected at nest top (mound), edge, and 20 m (control) from the edge. Results Cover, density and species richness of different functional groups were low on animal mounds in unburned and burned plots. Ant edges had greater perennial dicot cover, grass cover and richness while rat edges had lower grass density and richness than control sites at unburned and burned plots. Perennial dicot density and richness recovered faster at rat mounds and edges than control. Ant edges yielded faster recovery of grass inflorescences than control. Dicots recovered faster on rat than ant mounds whereas grasses grew faster on ant edges. Conclusions Rats create nests enhancing density of recovering dicots and ant edges facilitate reproduction of recovering grasses. Equal regeneration between animal nests and grassland occurred commonly when fire reduced grass competition. Dysochory, granivory and fire intensity may influence recovery. Nests may be sources of reestablishment and seed dispersal. Recovery of grassland may be amplified as plants infill from engineered nests.
英文关键词	ants community ecology dicots grassland restoration herbaceous community structure nests plant recovery facilitation plant-animal interactions rodent burrow wildfire
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000474629200012
WOS关键词	BANNERTAIL KANGAROO RAT ; POGONOMYRMEX-RUGOSUS HYMENOPTERA ; SEED-HARVESTER ANTS ; DESERT GRASSLAND ; VEGETATION ; COMMUNITY ; COMPETITION ; DIVERSITY ; DYNAMICS ; PATTERNS
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217405
作者单位	Univ New Mexico, Dept Biol, 167 Castetter Hall, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Nicolai, Nancy. Ecological engineers' nests benefit plant recovery following fire in a semiarid grassland, New Mexico, USA[J],2019,30(4):709-719.
APA	Nicolai, Nancy.(2019).Ecological engineers' nests benefit plant recovery following fire in a semiarid grassland, New Mexico, USA.JOURNAL OF VEGETATION SCIENCE,30(4),709-719.
MLA	Nicolai, Nancy."Ecological engineers' nests benefit plant recovery following fire in a semiarid grassland, New Mexico, USA".JOURNAL OF VEGETATION SCIENCE 30.4(2019):709-719.

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