Arid
DOI10.1002/ecs2.1331
Plant genotype influences aquatic-terrestrial ecosystem linkages through timing and composition of insect emergence
Compson, Zacchaeus G.1,2,3,5; Hungate, Bruce A.1,2,3; Whitham, Thomas G.2,3; Meneses, Nashelly2,3; Busby, Posy E.4; Wojtowicz, Todd2,3; Ford, Audrey C.2,3,6; Adams, Kenneth J.2,3,7; Marks, Jane C.1,2,3
通讯作者Compson, Zacchaeus G.
来源期刊ECOSPHERE
ISSN2150-8925
出版年2016
卷号7期号:5
英文摘要

Terrestrial leaf litter provides aquatic insects with an energy source and habitat structure, and species differences in litter can influence aquatic insect emergence. Emerging insects also provide energy to riparian predators. We hypothesized that plant genetics would influence the composition and timing of emerging insect communities among individual genotypes of Populus angustifolia varying in litter traits. We also compared the composition and timing of emerging insect communities on litter from mixed genotypes of three cross types of a hybridizing cottonwood complex: P. angustifolia, P. fremontii, and their F1 hybrids. Using litter harvested from an experimental common garden, we measured emerging insect community composition, abundance, and production for 12 weeks in large litter packs affixed with emergence traps. Five major findings emerged. (1) In support of the genetic similarity hypothesis, we found that, among P. angustifolia tree genotypes, litter from more closely related genotypes had more similar litter thickness, nitrogen concentrations, decomposition rates, and emerging insect communities. (2) Genetic similarity was not correlated with other litter traits, although the litter fungal community was a strong predictor of emerging insect communities. (3) Litter decomposition rate, which was the strongest predictor of emerging aquatic insect communities, was influenced by litter thickness, litter N, and the litter fungal community. (4) In contrast to strong community composition differences among P. angustifolia genotypes, differences in community composition between P. fremontii and P. angustifolia were only marginally significant, and communities on F1 hybrids were indistinguishable from P. angustifolia despite genetic and litter trait differences. (5) Mixed litter packs muted the genetic effects observed in litter packs consisting of single genotypes. These results demonstrate that the genetic structure of riparian forests can affect the composition and timing of aquatic insect emergence. Because many riparian trees are clonal, including P. angustifolia, large clone size is likely to result in patches of genetically structured leaf litter that may influence the timing and composition of insect emergence within watersheds. Riparian restoration efforts incorporating different tree genotypes could also influence the biodiversity of emerging aquatic insects. Our work illustrates the importance of plant genes for community and ecosystem processes in riparian corridors.


英文关键词aquatic insect communities common garden genetic similarity hypothesis genotypes headwater stream hybrids insect emergence leaf litter Oak Creek Arizona Populus angustifolia Populus fremontii secondary production
类型Article
语种英语
国家USA ; Canada
收录类别SCI-E
WOS记录号WOS:000377215200033
WOS关键词LEAF-LITTER DECOMPOSITION ; ARTHROPOD COMMUNITY STRUCTURE ; GENETIC SIMILARITY RULE ; ADULT STREAM INSECTS ; CONTRASTING LAND-USE ; ORGANIC-MATTER ; DESERT STREAM ; FOOD WEBS ; INVERTEBRATE COMMUNITIES ; RIPARIAN VEGETATION
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
来源机构University of California, Berkeley
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/192497
作者单位1.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA;
2.No Arizona Univ, Merriam Powell Ctr Environm Res, Flagstaff, AZ 86011 USA;
3.No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA;
4.Duke Univ, Dept Biol, Durham, NC 27708 USA;
5.Univ New Brunswick, Canadian Rivers Inst, Fredericton, NB E3B 5A3, Canada;
6.Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA;
7.Natl Pk Serv, George Washington Mem Pkwy, Mclean, VA 22101 USA
推荐引用方式
GB/T 7714
Compson, Zacchaeus G.,Hungate, Bruce A.,Whitham, Thomas G.,et al. Plant genotype influences aquatic-terrestrial ecosystem linkages through timing and composition of insect emergence[J]. University of California, Berkeley,2016,7(5).
APA Compson, Zacchaeus G..,Hungate, Bruce A..,Whitham, Thomas G..,Meneses, Nashelly.,Busby, Posy E..,...&Marks, Jane C..(2016).Plant genotype influences aquatic-terrestrial ecosystem linkages through timing and composition of insect emergence.ECOSPHERE,7(5).
MLA Compson, Zacchaeus G.,et al."Plant genotype influences aquatic-terrestrial ecosystem linkages through timing and composition of insect emergence".ECOSPHERE 7.5(2016).
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