Arid
DOI10.1093/icb/icv019
Species Introductions and Their Cascading Impacts on Biotic Interactions in desert riparian ecosystems
Hultine, Kevin R.1; Bean, Dan W.2; Dudley, Tom L.3; Gehring, Catherine A.4
通讯作者Hultine, Kevin R.
来源期刊INTEGRATIVE AND COMPARATIVE BIOLOGY
ISSN1540-7063
EISSN1557-7023
出版年2015
卷号55期号:4页码:587-601
英文摘要

Synopsis Desert riparian ecosystems of North America are hotspots of biodiversity that support many sensitive species, and are in a region experiencing some of the highest rates of climatic alteration in North America. Fremont cottonwood, Populus fremontii, is a foundation tree species of this critical habitat, but it is threatened by global warming and regional drying, and by a non-native tree/shrub, Tamarix spp., all of which can disrupt the mutualism between P. fremontii and its beneficial mycorrhizal fungal communities. Specialist herbivorous leaf beetles (Diorhabda spp.) introduced for biocontrol of Tamarix are altering the relationship between this shrub and its environment. Repeated episodic feeding on Tamarix foliage by Diorhabda results in varying rates of dieback and mortality, depending on genetic variation in allocation of resources, growing conditions, and phenological synchrony between herbivore and host plant. In this article, we review the complex interaction between climatic change and species introductions and their combined impacts on P. fremontii and their associated communities. We anticipate that (1) certain genotypes of P. fremontii will respond more favorably to the presence of Tamarix and to climatic change due to varying selection pressures to cope with competition and stress; (2) the ongoing evolution of Diorhabda’s life cycle timing will continue to facilitate its expansion in North America, and will over time enhance herbivore impact to Tamarix; (3) defoliation by Diorhabda will reduce the negative impact of Tamarix on P. fremontii associations with mycorrhizal fungi; and (4) spatial variability in climate and climatic change will modify the capacity for Tamarix to survive episodic defoliation by Diorhabda, thereby altering the relationship between Tamarix and P. fremontii, and its associated mycorrhizal fungal communities. Given the complex biotic/abiotic interactions outlined in this review, conservation biologists and riparian ecosystem managers should strive to identify and conserve the phenotypic traits that underpin tolerance and resistance to stressors such as climate change and species invasion. Such efforts will greatly enhance conservation restoration efficacy for protecting P. fremontii forests and their associated communities.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000362672100004
WOS关键词BIOLOGICAL-CONTROL AGENT ; TAMARISK TAMARIX SPP. ; CLIMATE-CHANGE ; COLEOPTERA-CHRYSOMELIDAE ; DIORHABDA-CARINULATA ; HYDRAULIC LIFT ; COMMUNITY HERITABILITY ; ASSISTED COLONIZATION ; GENETIC-VARIATION ; LOCAL ADAPTATION
WOS类目Zoology
WOS研究方向Zoology
来源机构University of Arizona
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187885
作者单位1.Desert Bot Garden, Dept Res Conservat & Collect, Phoenix, AZ 85008 USA;
2.Colorado Dept Agr, Palisade Insectary, Palisade, CO USA;
3.Univ Calif Santa Barbara, Inst Marine Sci, Santa Barbara, CA 93106 USA;
4.Univ Arizona, Dept Biol Sci, Flagstaff, AZ USA
推荐引用方式
GB/T 7714
Hultine, Kevin R.,Bean, Dan W.,Dudley, Tom L.,et al. Species Introductions and Their Cascading Impacts on Biotic Interactions in desert riparian ecosystems[J]. University of Arizona,2015,55(4):587-601.
APA Hultine, Kevin R.,Bean, Dan W.,Dudley, Tom L.,&Gehring, Catherine A..(2015).Species Introductions and Their Cascading Impacts on Biotic Interactions in desert riparian ecosystems.INTEGRATIVE AND COMPARATIVE BIOLOGY,55(4),587-601.
MLA Hultine, Kevin R.,et al."Species Introductions and Their Cascading Impacts on Biotic Interactions in desert riparian ecosystems".INTEGRATIVE AND COMPARATIVE BIOLOGY 55.4(2015):587-601.
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