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Ex-ante Benefit-Cost Analysis of the Elimination of a Glossina palpalis gambiensis Population in the Niayes of Senegal [texte imprimé] / F Bouyer, Auteur ; Mor Talla Seck, Auteur ; A. H. Dicko, Auteur ; B. Sall, Auteur ; M Lo, Auteur ; M J B Vreysen, Auteur ; E Chia, Auteur ; Jérémy Bouyer, Auteur ; A Wane, Auteur . - Dakar (PRH, Sénégal) : ISRA/LNERV, 2014 . - 12p. : ref,;. Langues : Anglais ( eng)
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ZV0170068 | L751- BOU | Article scientifique | LNERV | Rayons | Exclu du prêt |
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Importance of vector-borne infections in different production systems: bovine trypanosomosis and the innovation dynamics of livestock producers in Senegal [texte imprimé] / F Bouyer, Auteur ; Jérémy Bouyer, Auteur ; Mor Talla Seck, Auteur ; B. Sall, Auteur ; A. H. Dicko, Auteur ; R. Lancelot, Auteur ; E Chia, Auteur . - Dakar (PRH, Sénégal) : ISRA/LNERV, 2015 . - 14p. : ref,;. Langues : Anglais ( eng) Catégories : | SCIENCES, PRODUCTION ET PROTECTION ANIMALES
| Mots-clés : | trypanosomiase, Santé Animale, Risque, Bovine, Système de Production du Bétail, Intensification Écologique, Région du Niayes, Sénégal | Index. décimale : | L730-Maladie des animaux | Résumé : | In Senegal, a project has been undertaken to eradicate a population of tsetse
flies (Glossina palpalis gambiensis) from a prime area for intensifying livestock
production – the coastal region of Niayes. The project is intended to remove the
constraint of trypanosomosis and allow the ecological intensification of cattle
production.
A cross-sectional analysis of ten case studies was the inductive phase of an
assessment to gauge the impact of removing trypanosomosis on livestock
production strategies. The methodology used was comprehensive analysis,
with participatory epidemiology tools to understand farmers’ rationales. The
authors analysed the strategies of three main types of livestock producer (agropastoralists,
mixed crop/livestock farmers and intensive dairy farmers). The
strategies were in line with the farmers’ goals and their ability to mobilise the
socio-technical network.
The risk management of trypanosomosis has been incorporated into livestock
management practices through the use of trypanotolerant breeds, medical
prophylaxis or placing livestock in low-risk areas. Removing the risk of disease
would therefore have a major impact on decisions about the composition and
strategic direction of herds. This change in the animal health environment would
steer livestock production along different routes of intensification in a highly
competitive environment.
The indicators of innovation capacity revealed by this study will be used to
quantitatively monitor various change scenarios, taking livestock producers’
reasoning into account, in order to assess the socio-economic impact of
eradicating the tsetse fly population in this area. The methodology presented in
the study can be used to understand the impact of controlling other vector-borne
infections on the innovation dynamics of livestock producers. |
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ZV0170069 | L730- BOU | Article scientifique | LNERV | Rayons | Exclu du prêt |
Documents numériques
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Using species distribution models to optimize vector control in the framework of the tsetse eradication campaign in Senegal [texte imprimé] / A. H. Dicko, Auteur ; R. Lancelot, Auteur ; Mor Talla Seck, Auteur ; L Guerrini, Auteur ; B. Sall, Auteur ; M Lo, Auteur ; M J B Vreysen, Auteur ; T Lefrançois, Auteur ; W.M. Fonta, Auteur ; S.L. Peck, Auteur ; Jérémy Bouyer, Auteur . - Dakar (PRH, Sénégal) : ISRA/LNERV, 2014 . - 12p. Langues : Anglais ( eng) Catégories : | SCIENCES, PRODUCTION ET PROTECTION ANIMALES
| Mots-clés : | Espèce, Model de distribution, Système de Contrôle, Éradication du Tsetse, Campagne au Sénégal | Index. décimale : | L751-Programme et méthodes de lutte | Résumé : | Tsetse flies are vectors of human and animal trypanosomoses in
sub-Saharan Africa and are the target of the Pan African Tsetse
and Trypanosomiasis Eradication Campaign (PATTEC). Glossina
palpalis gambiensis (Diptera: Glossinidae) is a riverine species that
is still present as an isolated metapopulation in the Niayes area of
Senegal. It is targeted by a national eradication campaign combining
a population reduction phase based on insecticide-treated targets
(ITTs) and cattle and an eradication phase based on the sterile
insect technique. In this study, we used species distribution models
to optimize control operations. We compared the probability of
the presence of G. p. gambiensis and habitat suitability using a regularized
logistic regression and Maxent, respectively. Both models
performed well, with an area under the curve of 0.89 and 0.92,
respectively. Only the Maxent model predicted an expert-based
classification of landscapes correctly. Maxent predictions were
therefore used throughout the eradication campaign in the Niayes
to make control operations more efficient in terms of deployment
of ITTs, release density of sterile males, and location of monitoring
traps used to assess program progress. We discuss how the models’
results informed about the particular ecology of tsetse in the
target area. Maxent predictions allowed optimizing efficiency and
cost within our project, and might be useful for other tsetse control
campaigns in the framework of the PATTEC and, more generally,
other vector or insect pest control programs. |
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Exemplaires
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ZV0170067 | L751- DIC | Article scientifique | LNERV | Rayons | Exclu du prêt |
Documents numériques
Cliquer pour voir pdfURL | | |