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<datestamp>2016-04-06</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Invasion speeds of Triatoma dimidiata, vector of Chagas disease: An application of orthogonal polynomials method</title>
<creator>Mesk, Mohammed</creator>
<creator>Mahdjoub, Tewfik</creator>
<creator>Gourbière, Sébastien</creator>
<creator>Rabinovich, Jorge E.</creator>
<creator>Menu, Frédéric</creator>
<contributor> Laboratoire d’Analyse Non Linéaire et Mathématiques Appliquées (LANLMA) ; Université Abou Bekr Belkaid Tlemcen</contributor>
<contributor>Institut de Modélisation et d'Analyses en géo-environnement et santé - Espace Développement (IMAGES-Espace DEV) ; Université de Perpignan Via Domitia (UPVD) - Espace pour le Développement (UMR ESPACE-DEV) ; Université des Antilles et de la Guyane (UAG) - Université de la Réunion - Université de Montpellier (UM) - Institut de Recherche pour le Développement (IRD) - Université des Antilles et de la Guyane (UAG) - Université de la Réunion - Université de Montpellier (UM) - Institut de Recherche pour le Développement (IRD)</contributor>
<contributor>Centro de Estudios Parasitologicos y de Vectores ; Universidad Nacional de la Plata</contributor>
<contributor>Laboratoire de Biométrie et Biologie Evolutive (LBBE) ; Université Claude Bernard Lyon 1 (UCBL) - Institut National de Recherche en Informatique et en Automatique (Inria) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0022-5193</source>
<source>EISSN: 1095-8541</source>
<source>Journal of Theoretical Biology</source>
<publisher>Elsevier</publisher>
<identifier>hal-01298098</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01298098</identifier>
<source>https://hal-univ-perp.archives-ouvertes.fr/hal-01298098</source>
<source>Journal of Theoretical Biology, Elsevier, 2016, 395, p. 126-143. <10.1016/j.jtbi.2016.01.017></source>
<identifier>DOI : 10.1016/j.jtbi.2016.01.017</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jtbi.2016.01.017</relation>
<language>en</language>
<subject lang=en>Dispersal</subject>
<subject lang=en>Triatomines</subject>
<subject lang=en>Integrodifference equations</subject>
<subject lang=en>Saddle-point approximation</subject>
<subject lang=en>Chebyshev polynomials</subject>
<subject>[SDV.EE] Life Sciences [q-bio]/Ecology, environment</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Demographic processes and spatial dispersal of Triatoma dimidiata, a triatomine species vector of Chagas disease, are modeled by integrodifference equations to estimate invasion capacity of this species under different ecological conditions. The application of the theory of orthogonal polynomials and the steepest descent method applied to these equations, allow a good approximation of the abundance of the adult female population and the invasion speed. We show that: (1) under the same mean conditions of demography and dispersal, periodic spatial dispersal results in an invasion speed 2.5 times larger than the invasion speed when spatial dispersal is continuous; (2) when the invasion speed of periodic spatial dispersal is correlated to adverse demographic conditions, it is 34.7% higher as compared to a periodic dispersal that is correlated to good demographic conditions. From our results we conclude, in terms of triatomine population control, that the invasive success of T. dimidiata may be most sensitive to the probability of transition from juvenile to adult stage. We discuss our main theoretical predictions in the light of observed data in different triatomines species found in the literature.</description>
<date>2016-04</date>
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