Diversity and abundance of Lepidoptera populations in the Theniet El Had National Park (Algeria)

Areas planted with Eucalyptus urophylla S.T. Blake variety platyphylla F. Muell. (Myrtaceae) expand annually in most regions of Brazil. Many lepidopteran species defoliate this plant, but with damage varying per species. The objective of this study was to identify the pest status of lepidopteran defoliators based in the faunistic analysis of these insects and of their natural enemies on E. urophylla variety platyphylla plantations in a representative producing region of Brazil. Adult moths of lepidopterans and of their natural enemies were captured using a light trap, installed every two weeks, from September 2016 to August 2018. A total of 183, 10, three and 139 lepidopteran species was captured and classified as primary, secondary, without defined importance to eucalypt plants and non-identified with 1,419, seven, 465 and 876 individuals, respectively. Two primary pest species were constants, two accessories and six accidentals and all secondary ones were accidentals. Six primary pest species were common and dominant and four non-dominants. Faunistic indices indicated the main lepidopteran species that should be monitored in pest management programs. Seven hymenopteran species (65 individuals), three dipterans (49 individuals) and two hemipterans (four individuals) were the natural enemies collected using light traps. The monitoring of lepidopteran pests with light traps can contribute to the management and to reduce damage and control costs for these species, besides identifying natural enemies for biological control programs in Eucalyptus plantations.

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“…Hill & L.A.S. Johnson (Steinbauer and Matsuki, 2004;Bernardi et al, 2008;Samira et al, 2020) species.…”

Section: Discussionmentioning

confidence: 99%

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

et al. 2023

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Butterflies' biodiversity of Souk Ahras Forest (Mechroha and Ouled Driss North east of Algeria)

et al. 2022

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This study investigated for the first time species richness, abundance of butterflies and disturbed habitats in Souk Ahras Forest. The assessment of butterflies' diversity and relative abundance was conducted from July 2019 to July 2021. We recorded 60,696 individuals of 49 butterfly species belonging to six families (Papilionidae, Pieridae, Lycaenidae, Nymphalidae, Hesperiidae and Sphingidae). Nymphalidae was dominant by 19 species, followed by Lycaenidae 13 species, Pieridae 10 species, Hesperiidae 4 species, Papilionidae 2 species and diurnal moths ‘Sphingidae’ with only one species. The highest number of species was recorded in oaks groves (medium high altitude) with 35 species; in terms of abundance, grassland (low altitude) dominates in number (n = 20,094). The lowest species diversity (S = 7) and number of individuals (n = 1227) were recorded in the Dense tree stratum scrub station which records significant water pollution. We notice that the abundance of butterflies was important during the spring and summer periods but less important during the winter. Landscape composition and habitat influence butterfly diversity and their dynamics. Many species used more than one distinct habitat type, or just one special habitat; we suggest that vegetation cover is an important mechanism for butterfly diversity persistence in forest ecosystems mosaics.

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Diversity and abundance of Lepidoptera populations in the Theniet El Had National Park (Algeria)

Cited by 2 publications

References 2 publications

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

Butterflies' biodiversity of Souk Ahras Forest (Mechroha and Ouled Driss North east of Algeria)

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