World Journal of Environmental Biosciences
World Journal of Environmental Biosciences
2018 Volume 7 Issue 3

Evaluation and Characterization of Black Rat (Rattus Rattus) Population in the Phoenicultural Environments of Algeria

Mlik Randa, Souttou Karim, Meddour Salim, Sekour Makhlouf, Lakhdari Wassima, Dehliz Abderrahmene

The counting and characterization of the black rat population in 4 stations (2 palm groves and 2 storage sites) located in the region of Touggourt (southern Algeria) were studied by comprehensive trappings, following the use of BTS traps. These allowed the capture of 492 individuals through a trapping effort of 936 trap nights. The palm groves (n = 301) were more infested than the storage sites (n = 191). So for the densities, the latter are more infested (0.49 and 0.97 ind./m2) than the palm groves (0.04 ind./m2). On the other hand, June (16.3 ± 7.3), July (17 ± 7.0), August (18 ± 7.5) and September (18.5 ± 5.8) were characterized by the highest captures. The sex ratio showed a predominance of males in both palm groves (185? / 116?) and storage sites (115? / 76?). The adults (33.5%) and the sub-adults (28.6%) were the most important in the black rat.

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