[ Co-evolution des variables climatiques et du cycle biologique du criquet puant (Zonocerus variegatus Linné) ]
Volume 42, Issue 2, April 2024, Pages 252–263
Laurent Kikeba Mbala1, Alphonse Kambi Dibaya Okito Longo2, Gilbert Pululu Mfwidi Nitu3, Antoine MUMBA DJAMBA4, and Idi Eca Idrissa5
1 Université Loyola du Congo, Kinshasa, RD Congo
2 Institut Supérieur Pédagogique, Mbuji Mayi, RD Congo
3 Institut Supérieur Pédagogique de la Gombe, Kinshasa, RD Congo
4 Université Pédagogique Nationale, RD Congo
5 Université Espoir du Congo, Sud-Kivu, RD Congo
Original language: French
Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This research aims to identify changes in climatic factors likely to explain the proliferation of Zonocerus variegatus populations observed in the Mawanga sector since 2015. Data series of temperature, precipitation and relative humidity covering the period from 1985 to 2021 have been downloaded from the «power.larc.nasa.gov» website. They made it possible to calculate the Lamb or Nicholson index and to evaluate the variability in order to discriminate between years with precipitation, temperature and hygrometry deficiency from those in excess compared to normal. This diachronic analysis revealed a variability likely to impact the population dynamics of stinking locusts and increase their ravages against cassava cultivation. Associated with the phenological stages of the stinking locust, the variability of precipitation, temperature and relative humidity parameters recorded between 1985 and 2021 favored the proliferation of stinking locusts and subsequent attacks.
Author Keywords: Climatic variability, proliferation, Zononerus variegatus, DRC.
Volume 42, Issue 2, April 2024, Pages 252–263
Laurent Kikeba Mbala1, Alphonse Kambi Dibaya Okito Longo2, Gilbert Pululu Mfwidi Nitu3, Antoine MUMBA DJAMBA4, and Idi Eca Idrissa5
1 Université Loyola du Congo, Kinshasa, RD Congo
2 Institut Supérieur Pédagogique, Mbuji Mayi, RD Congo
3 Institut Supérieur Pédagogique de la Gombe, Kinshasa, RD Congo
4 Université Pédagogique Nationale, RD Congo
5 Université Espoir du Congo, Sud-Kivu, RD Congo
Original language: French
Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This research aims to identify changes in climatic factors likely to explain the proliferation of Zonocerus variegatus populations observed in the Mawanga sector since 2015. Data series of temperature, precipitation and relative humidity covering the period from 1985 to 2021 have been downloaded from the «power.larc.nasa.gov» website. They made it possible to calculate the Lamb or Nicholson index and to evaluate the variability in order to discriminate between years with precipitation, temperature and hygrometry deficiency from those in excess compared to normal. This diachronic analysis revealed a variability likely to impact the population dynamics of stinking locusts and increase their ravages against cassava cultivation. Associated with the phenological stages of the stinking locust, the variability of precipitation, temperature and relative humidity parameters recorded between 1985 and 2021 favored the proliferation of stinking locusts and subsequent attacks.
Author Keywords: Climatic variability, proliferation, Zononerus variegatus, DRC.
Abstract: (french)
Cette recherche vise l’identification des changements des facteurs climatiques susceptibles d’expliquer la prolifération des populations de Zonocerus variegatus observée dans le secteur de Mawanga depuis 2015. Des séries de données des températures, des précipitations et d’humidité relative couvrant la période allant de 1985 à 2021 ont été téléchargées sur le site « power.larc.nasa.gov ». Elles ont permis de calculer l’indice de Lamb ou de Nicholson et d’évaluer la variabilité afin de discriminer les années avec précipitations, température, hygrométrie déficitaire de celles excédentaires par rapport à la normale. Cette analyse diachronique a ressorti une variabilité susceptible d’impacter la dynamique de la population des criquets puants et augmenter leurs ravages contre la culture du manioc. Associé aux stades phénologiques du criquet puant, la variabilité des paramètres précipitations, température et humidité relative enregistrés entre 1985 et 2021 a favorisé la prolifération des criquets puants et les attaques subséquentes.
Author Keywords: Variabilité climatique, prolifération, Zononerus variegatus, RDC.
How to Cite this Article
Laurent Kikeba Mbala, Alphonse Kambi Dibaya Okito Longo, Gilbert Pululu Mfwidi Nitu, Antoine MUMBA DJAMBA, and Idi Eca Idrissa, “Co-evolution of climate variables and the life cycle of the stinking locust (Zonocerus variegatus Linné),” International Journal of Innovation and Applied Studies, vol. 42, no. 2, pp. 252–263, April 2024.
