@article{fdi:010044039,
  title = {{T}emperature as a key driver of ecological sorting among invasive pest species in the tropical {A}ndes},
  author = {{D}angles, {O}livier and {C}arpio, {C}. and {B}arragan, {A}. {R}. and {Z}eddam, {J}ean-{L}ouis and {S}ilvain, {J}ean-{F}ran{\c{c}}ois},
  editor = {},
  language = {{ENG}},
  abstract = {{I}nvasive species are a major threat to the sustainable provision of ecosystem products and services, both in natural and agricultural ecosystems. {T}o understand the spatial arrangement of species successively introduced into the same ecosystem, we examined the tolerance to temperature and analyzed the field distribution of three potato tuber moths ({PTM}, {L}epidoptera: {G}elechiidae), that were introduced in {E}cuador since the 1980s. {W}e studied physiological responses to constant temperatures of the three {PTM} species under laboratory conditions and modeled consequences for their overall population dynamics. {W}e then compared our predictions to field abundances of {PTM} adults collected in 42 sites throughout central {E}cuador. {R}esults showed that the three {PTM} species differed with respect to their physiological response to temperature. {S}ymmetrischema tangolias was more cold tolerant while {T}ecia solanivora had the highest growth rates at warmer temperatures. {P}hthorimaea operculella showed the poorest physiological performance across the range of tested temperatures. {O}verall field distributions agree with predictions based on physiological experiments and life table analyses. {A}t elevations >3000 m, the most cold-tolerant species, {S}. tangolias, was typically dominant and often the only species present. {T}his species may therefore represent a biological sensor of climate change. {A}t low elevations (<2700 m), {T}. solanivora was generally the most abundant species, probably due to its high fecundity at high temperatures. {A}t mid elevations, the three species co-occurred, but {P}. operculella was generally the least abundant species. {C}onsistent with these qualitative results, significant regression analyses found that the best predictors of field abundance were temperature and a species x temperature interaction term. {O}ur results suggest that the climatic diversity in agricultural landscapes can directly affect the community composition following sequential invasions. {I}n the tropical {A}ndes, as in other mountain ecosystems, the wide range of thermal environments found along elevational gradients may be one reason why the risks of invasion by successively introduced pest species could increase in the near future. {M}ore data on potential biological risks associated with climatic warming trends in mountain systems are therefore urgently needed, especially in developing nations where such studies are lacking.},
  keywords = {{A}gricultural landscapes ; {C}ohort dynamic model ; {E}cuador ; {E}levational distribution limits ; {G}elechiidae ; {P}hthorimaea operculella ; {P}opulation dynamics ; {P}otato tuber moth ; {S}ymmetrischema tangolias ; {T}ecia solanivora ; {T}emperature},
  booktitle = {},
  journal = {{E}cological {A}pplications},
  volume = {18},
  numero = {7},
  pages = {1795--1809},
  ISSN = {1051-0761},
  year = {2008},
  DOI = {10.1890/07-1638.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010044039},
}