http://www.cnr.it/ontology/cnr/individuo/prodotto/ID13209

Large Scale Climatic Patterns Forcing Desert Locust Upsurges in West Africa (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Large Scale Climatic Patterns Forcing Desert Locust Upsurges in West Africa (Articolo in rivista) (literal)

Anno

2008-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.3354/cr00744 (literal)

Alternative label

C Vallebona; L Genesio; A Crisci; M Pasqui; A Di Vecchia; G Maracchi (2008)
Large Scale Climatic Patterns Forcing Desert Locust Upsurges in West Africa
in Climate research; Inter-Research, Oldendorf Luhe (Germania)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

C Vallebona; L Genesio; A Crisci; M Pasqui; A Di Vecchia; G Maracchi (literal)

Pagina inizio

35 (literal)

Pagina fine

41 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.int-res.com/abstracts/cr/v37/n1/p35-41/ (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

37 (literal)

Rivista

Climate research (Rivista)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Istituto di Biometeorologia (literal)

Titolo

Large Scale Climatic Patterns Forcing Desert Locust Upsurges in West Africa (literal)

Abstract

The desert locust represents a serious threat to food security in many African, Middle Eastern, and Southwest Asian countries. Desert locust breeding, maturation, and diffusion Eire strongly influenced by local environmental parameters, mainly rainfall, temperature, wind, and related features such as soil humidity and vegetation development. The recurring simultaneous occurrence of outbreaks and seasonal breeding over wide regions Suggests the existence of large-scale forcing due to climatic anomalies. Even if the connections between climate anomalies and desert locust upsurges have been hypothesized in the literature, no inference has been demonstrated for large-scale climatic processes, allowing their potential use as predictors. In the present study we assessed a historical data series on desert locust population dynamics by integrating several data sources. A climatic analysis was carried out on a monthly basis covering the period 1979-2005 using the global NCEP-DOE Reanalysis dataset, The Wilcoxon non-parametric test was used to establish whether identified West African atmospheric patterns in upsurge years present significant differences compared to recession years. The analysis suggests a significant role of a weaker easterly flow at the core of the African Easterly Jet during spring, coupled with stronger westerly moisture advection. These climatic features may indeed explain meteorological conditions supporting many contemporaneous Outbreaks, eventually developing into an upsurge (i.e. widespread rainfall events over key areas). (literal)

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