Titre

Potential impacts of climate change on stable flies, investigated along an altitudinal gradient

Année de publication

2008

Source

Medical and Veterinary Entomology 22 74 81 1

ISSN
0269-283X
Résumé

Abstract Adult populations of stable flies were sampled along an altitudinal transect in Reunion Island to determine whether higher temperatures were associated with: (a) higher numbers of flies; (b) a longer season of infestation, and/or (c) different responses to warming in the cosmopolitan Stomoxys calcitrans (L) and the tropical Stomoxys niger niger Macquart (Diptera: Muscidae). Flies of both species were trapped at seven farms situated at four altitudes (100−1600 m a.s.l.) over a 90‐week period. For both species, there were no relationships between the maximum or mean fly abundance and altitude. Only minimum abundance in winter was significantly higher at lower altitudes. Maximum and mean abundances differed significantly between nearby farms under similar climatic conditions. Seasonal fluctuations in fly abundance changed along the gradient. At lower altitudes, population growth started earlier after the winter but abundance declined earlier in summer, which resulted in a shift of the season of infestation. Seasonal fluctuations of both species were strongly related to climate variables at high altitude, mainly temperature. However, climate variables explained a decreasing proportion of the variations in abundance at lower altitudes. Stomoxys calcitrans was the most abundant species overall, but the proportion of S. n. niger increased significantly at lower altitudes and this species became predominant at 100 m a.s.l. It is concluded that stable fly infestations are unlikely to worsen in response to global warming. Maximum abundance is limited by local factors, possibly larval resources, which suggests that adequate husbandry practices could override the impact of climate change. Because S. n. niger tends to be the predominant pest at elevated temperatures, it is recommended that this species should not be introduced in areas where climate is changing.

Type de publication
  • journal
Type de document
  • article
Classification
 
Classification - Inist-CNRS
    Classification - Scopus
    • 1 - Life Sciences
    • 2 - Agricultural and Biological Sciences
    • 3 - Insect Science
    • 1 - Health Sciences
    • 2 - Veterinary
    • 3 - General Veterinary
    • 3 - Ecology, Evolution, Behavior and Systematics
    • 2 - Immunology and Microbiology
    • 3 - Parasitology
    Classification - Science Metrix
    • 1 - health sciences
    • 2 - clinical medicine
    • 3 - tropical medicine
    Classification - Clarivate Analytics (Subject Category)
    • 1 - science
    • 2 - veterinary sciences
    • 2 - entomology
    Termes extraits

    calcitrans; stomoxys; entomology; diptera; muscidae; altitudinal; stomoxys calcitrans; climate change; gilles; niger; entomological; lower altitudes; climatic; climate variables; veterinary entomology; ecology; global warming; authors journal compilation; reunion island; stomoxys niger niger; royal entomological society; medical entomology; economic entomology; population dynamics; population growth; altitudinal gradient; altitude; relative humidity; significant relationships; tropical species; whittaker; dairy farms; insecticide applications; seasonal patterns; seasonal characteristics; seasonal variations; husbandry practices; lowest altitude; winter trough; animal ecology; relative abundance; vavoua traps; seasonal abundance; infestation; altitudinal transect; annual temperature; highest sites; ecophysiological responses; mullens meyer; intrinsic rate; field conditions; rank correlation; seasonal fluctuations; climatic factors; seasonal events; entomological research; biotic interactions; standard errors; same altitude; whittaker tribe; calcitrans ratio; consecutive weeks; stomoxys species; significant altitudinal trends; autumn rebound; milk production; same time; climatic models; trap efficiency; direct counts; dirtier farm; cattle manure; larval development; kunz monty; direct effect; summer decline; natural enemies; environmental entomology; tropical stomoxys niger niger macquart; high altitude; minimum abundance; cosmopolitan species; climatic conditions

    Entité nommée
     
    Entité nommée - Emplacement géographique
    • Madagascar
    • Montpellier
    • Germany
    • France
    Entité nommée - Organisme
    • France and the Conseil Régional of Reunion Island
    • France Abstract
    • University of Kentucky
    • Department of Entomology
    • Mauritius, Uganda and Kenya
    • Madagascar, Mauritius and Reunion
    • Agriculture Science Center North
    • StataCorp
    Entité nommée - Personne
    A. Stomoxys; J. Gilles; B. Stomoxys
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