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Environ Entomol. 2015 Aug;44(4):1182-92. doi: 10.1093/ee/nvv067. Epub 2015 May 8.

Temperature Characterization of Different Urban Microhabitats of Aedes albopictus (Diptera Culicidae) in Central-Northern Italy.

Author information

1
Institute of Biometeorology - IBIMET, National Research Council - CNR, Via Giovanni Caproni 8, 50145 Firenze, Italy. Climate and Sustainability Foundation, Via Giovanni Caproni 8, 50145 Firenze, Italy. vallorani@lamma.rete.toscana.it.
2
Public Health Service - Emilia-Romagna Region, Viale Aldo Moro 11, 40127 Bologna, Italy.
3
Department of Medical and Veterinary Entomology, Agriculture and Environment Center "G. Nicoli", Via Argini Nord 3351, 40014 Crevalcore (BO), Italy.
4
Institute of Biometeorology - IBIMET, National Research Council - CNR, Via Giovanni Caproni 8, 50145 Firenze, Italy.
5
Public Health Department, Ausl della Romagna, Via Marino Moretti 99, 47521 Cesena, Italy.
6
Institute of Biometeorology - IBIMET, National Research Council - CNR, Via Giovanni Caproni 8, 50145 Firenze, Italy. Climate and Sustainability Foundation, Via Giovanni Caproni 8, 50145 Firenze, Italy.

Abstract

Aedes albopictus (Skuse) is an invasive mosquito species that has spread to many countries in temperate regions bordering the Mediterranean basin, where it is becoming a major public health concern. A good knowledge of the thermal features of the most productive breeding sites for Ae. albopictus is crucial for a better estimation of the mosquitoes' life cycle and developmental rates. In this article, we address the problem of predicting air temperature in three microhabitats common in urban and suburban areas and the air and water temperature inside an ordinary catch basin, which is considered the most productive breeding site for Ae. albopictus in Italy. Temperature differences were statistically proven between the three microhabitats and between the catch basin external and internal temperature. The impacts on the developmental rates for each life stage of Ae. albopictus were tested through a parametric function of the temperature, and the aquatic stages resulted as being the most affected using the specific temperature inside a typical catch basin instead of a generic air temperature. The impact of snow cover on the catch basin internal temperature, and consequently on the mortality of diapausing eggs, was also evaluated. These data can be useful to improve epidemiological models for a better prediction of Ae. albopictus seasonal and population dynamics in central-northern Italian urban areas.

KEYWORDS:

breeding site; developmental rate; diapause; population dynamics; temperature

PMID:
26314064
DOI:
10.1093/ee/nvv067
[Indexed for MEDLINE]

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