Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00442-017-3986-1 |
Using eco-physiological traits to understand the realized niche: the role of desiccation tolerance in Chagas disease vectors | |
de la Vega, Gerardo J.1,2,3; Schilman, Pablo E.1,2 | |
通讯作者 | Schilman, Pablo E. |
来源期刊 | OECOLOGIA
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ISSN | 0029-8549 |
EISSN | 1432-1939 |
出版年 | 2017 |
卷号 | 185期号:4页码:607-618 |
英文摘要 | Small ectotherms, such as insects, with high surface area-to-volume ratios are usually at risk of dehydration in arid environments. We hypothesize that desiccation tolerance in insects could be reflected in their distribution, which is limited by areas with high relative values of water vapor pressure deficit (VPD) (e.g., hot and dry). The main goal of this study was to explore whether incorporation of eco-physiological traits such as desiccation tolerance in arid environments can improve our understanding of species distribution models (SDM). We use a novel eco-physiological approach to understand the distribution and the potential overlap with their fundamental niche in triatomine bugs, Chagas disease vectors. The desiccation dimension for T. infestans, T. delpontei, T. dimidiata, and T. sordida niches seems to extend to very dry areas. For T. vitticeps, xeric areas seem to limit the geographical range of their realized niche. The maximum VPD limits the western and southern distributions of T. vitticeps, T. delpontei, and T. patagonica. All species showed high tolerance to desiccation with survival times (35 A degrees C-RH similar to 15%) ranging from 24 to 38 days, except for T. dimidiata (9 days), which can be explained by a higher water-loss rate, due to a higher cuticular permeability along with a higher critical water content. This approach indicates that most of these triatomine bugs could be exploiting the dryness dimension of their fundamental niche. Incorporating such species-specific traits in studies of distribution, range, and limits under scenarios of changing climate could enhance predictions of movement of disease-causing vectors into novel regions. |
英文关键词 | Physiological ecology Desiccation tolerance SDM Chagas disease vectors |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000415027100007 |
WOS关键词 | WATER-BALANCE ; TRIATOMA-INFESTANS ; RELATIVE-HUMIDITY ; RANGE SHIFTS ; TEMPERATURE ; HEMIPTERA ; INSECTS ; BUG ; HETEROPTERA ; REDUVIIDAE |
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/2XILL650/201284 |
作者单位 | 1.Univ Buenos Aires, Lab Ecofisiol Insectos, Dept Biodiversidad & Biol Expt, Fac Ciencias Exactas & Nat, Buenos Aires, DF, Argentina; 2.CONICET UBA, IBBEA, Ciudad Univ,Pabellon 2,C1428EHA, Buenos Aires, DF, Argentina; 3.INTA EEA Bariloche, GEPI, San Carlos De Bariloche, Rio Negro, Argentina |
推荐引用方式 GB/T 7714 | de la Vega, Gerardo J.,Schilman, Pablo E.. Using eco-physiological traits to understand the realized niche: the role of desiccation tolerance in Chagas disease vectors[J],2017,185(4):607-618. |
APA | de la Vega, Gerardo J.,&Schilman, Pablo E..(2017).Using eco-physiological traits to understand the realized niche: the role of desiccation tolerance in Chagas disease vectors.OECOLOGIA,185(4),607-618. |
MLA | de la Vega, Gerardo J.,et al."Using eco-physiological traits to understand the realized niche: the role of desiccation tolerance in Chagas disease vectors".OECOLOGIA 185.4(2017):607-618. |
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