干旱区生态环境知识资源中心(Arid): Climate mediates long-term impacts of rodent exclusion on desert plant communities

Arid

DOI	10.1002/ecm.1497
	Climate mediates long-term impacts of rodent exclusion on desert plant communities
	Maron, John L.; Lightfoot, David C.; Rodriguez-Cabal, Mariano A.; Collins, Scott L.; Rudgers, Jennifer A.
通讯作者	Maron, JL (corresponding author)，Univ Montana, Div Biol Sci, Missoula, MT 59812 USA.
来源期刊	ECOLOGICAL MONOGRAPHS
ISSN	0012-9615
EISSN	1557-7015
出版年	2022-02
英文摘要	Determining how climate affects biotic interactions can improve understanding of drivers of context-dependence and inform predictions of how interactions may influence plants under future climates. In arid environments, the community-level impacts of seed predators may depend strongly on aridity; yet, long-term studies documenting impacts of granivores on plant communities over variable climate conditions remain scarce. We evaluated how rodent exclusion interacted with climate to influence grassland and shrubland forb communities and the community-scale distribution of seed mass over 15 years in the climatically variable northern Chihuahuan Desert. In this dynamic system, two seasonally distinct plant community phases occur annually, one in spring and the other during the summer monsoon. Rodent exclusion significantly altered the community composition of monsoon season plant communities in both grassland and shrubland, but did not affect spring plant composition. Rodents suppressed the abundance of larger-seeded forb species and promoted smaller-seeded species. As a consequence, rodent exclusion increased community seed mass (CWM) in monsoon forb communities, most strongly in grassland. The magnitude of impacts of rodents on seed mass varied substantially from year-to-year, tracking variation in climate. Specifically, rodent exclusion increased community mean seed mass the most in dry years (grassland) or in years following dry years (shrubland). Rodent exclusion had relatively weak effects on plant species diversity and richness. Our results indicate that climate interacts with the presence of rodents to structure not only the composition but also the traits of desert plant communities.
英文关键词	Chihuahuan Desert community-weighted mean plant communities post-dispersal seed predation precipitation rodents seed size
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000749352200001
WOS关键词	NORTHERN CHIHUAHUAN DESERT ; NET PRIMARY PRODUCTION ; MAMMAL SEED PREDATION ; BOTTOM-UP REGULATION ; KANGAROO RATS ; POPULATION-DYNAMICS ; SPECIES COEXISTENCE ; SPATIAL-PATTERNS ; KEYSTONE RODENT ; COMPETITION
WOS类目	Ecology
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/2XILL650/377358
作者单位	[Maron, John L.] Univ Montana, Div Biol Sci, Missoula, MT 59812 USA; [Lightfoot, David C.] Univ New Mexico, Museum Southwestern Biol, Albuquerque, NM 87131 USA; [Rodriguez-Cabal, Mariano A.] Univ Nacl Comahue, INIBIOMA CONICET, Grp Ecol Invas, San Carlos De Bariloche, Rio Negro, Argentina; [Rodriguez-Cabal, Mariano A.] Univ Vermont, Rubenstein Sch Environm & Nat Resources, Burlington, VT USA; [Collins, Scott L.; Rudgers, Jennifer A.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Maron, John L.,Lightfoot, David C.,Rodriguez-Cabal, Mariano A.,et al. Climate mediates long-term impacts of rodent exclusion on desert plant communities[J],2022.
APA	Maron, John L.,Lightfoot, David C.,Rodriguez-Cabal, Mariano A.,Collins, Scott L.,&Rudgers, Jennifer A..(2022).Climate mediates long-term impacts of rodent exclusion on desert plant communities.ECOLOGICAL MONOGRAPHS.
MLA	Maron, John L.,et al."Climate mediates long-term impacts of rodent exclusion on desert plant communities".ECOLOGICAL MONOGRAPHS (2022).