Description of the Egg and First-Instar Larva of<i>Scotobius pilularius</i>Germar, 1823 (Coleoptera: Tenebrionidae: Scotobiini), and Analysis of Larval Primary Chaetotaxy

Silvestro, Violeta A.; Michat, Mariano C.

doi:10.3161/00034541anz2016.66.4.019

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…Las especies de Pimellinae MAA y Tenebrioninae AA fueron más abundantes en Médano que en Cultivo (Tabla 1). Toda alteración del hábitat afecta negativamente a Tenebrionidae (Flores, 1998), por lo que esta diferencia podría ser el resultado de cambios en el hábitat producidos por la actividad agrícola, considerando que todas estas especies prefieren oviponer en suelos arenosos por su desarrollo larvario hipogeo (Matthews et al, 2010;Silvestro & Michat, 2016).…”

Section: Seunclassified

Comparative diversity of Tenebrionids (Coleoptera) in two environments with different land uses

Quiroga,

Díaz Nieto,

Murúa

et al. 2023

MACN

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Comparative diversity of Tenebrionids (Coleoptera) in two environments with different land uses. The advance of agriculture raises the need to measure the effect of human activities on natural environments. Tenebrionidae is considered a good biological indicator for this purpose. The central goal of this study is to compare the assemblages of darkling-beetles (Coleoptera: Tenebrionidae) from dunes located in a natural area and from a cultivated site, in order: 1) Increase our knowledge of the community of darkling-beetles of sand dunes from the Monte Desert; 2) Examine spatio-temporal changes in the abundance and diversity (alfa and beta) of these beetles between natural sand dunes and a cultivated area; 3) Annalise spatio-temporal changes in the assemblages found in these two areas based on their adaptation to aridity conditions. A site with commercial crops of Vitis vinifera and a site in dune system, considered a natural area with low human intervention were sampled using of pitfall traps. Different indices were applied to determine the alpha and beta diversity of both environments. Comparative analyses were carried out between the two environments for three groups of tenebrionid species classified according to their degree of adaptation to aridity: Most Highly Adapted, Highly Adapted and Less Adapted species. We collected 1792 tenebrionids, grouped into five subfamilies and 22 species, with 8 new records of Tenebrionidae for the central Monte of Argentina. The diversity was similar for commercial crops and the dune system, although species composition differed between sites. However, differences between environments were associated with the degree of adaptation to aridity of the different groups of species. Agricultural activity would affect the species with greater adaptation to the arid natural environment.

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Section: Seunclassified

Comparative diversity of Tenebrionids (Coleoptera) in two environments with different land uses

Quiroga,

Díaz Nieto,

Murúa

et al. 2023

MACN

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“…The two species of Tenebrioninae belong to Scotobiini, an endemic tribe to South America abundant in arid and semiarid environments (Doyen 1994, Matthews et al 2010 with similar adaptations to living in such habitats (Silvestro et al 2015). These beetles lay eggs in the soil and their larval development is hypogeous, meaning that practically all their biological cycle takes place above and below the ground (Flores 1998, Matthews et al 2010, Silvestro & Michat 2016.…”

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confidence: 99%

Environmental factors determining the diversity of darkling beetles (Coleoptera: Tenebrionidae) in arid, high-altitude environments in Northwestern Argentina

Macagno¹,

Cruz²,

Rodriguez-Artigas³

et al. 2023

An. Acad. Bras. Ciênc.

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Factors influencing the diversity of tenebrionid beetles in arid, high-altitude environments in the northwest of Argentina are little-known. Using pitfall traps and suction sampling in 30 sites, we collected these beetles in Altos Andes (AA) and Puna (PU) ecoregions and evaluated how local and regional factors influenced their assemblages. During each sampling date, we registered variables related to climate, vegetation, and soil in each sampling site. In total, we recorded 270 individuals from 21 species, richness of species was higher in PU than in AA, but without a statistically significant difference. Twelve species were present exclusively in PU, while two in AA.Tenebrionid assemblages in both ecoregions had different dominant species, in PU, Psectrascelis cariosicollis while Epipedonota interandina in AA. Beta diversity between ecoregions was moderate and we recorded a high beta diversity and high turnover of species in each ecoregion. The geographical distance between the sites influenced the similarity of the assemblages inside and between ecoregions, therefore, an increase in the geographical distance between sites determined a decrease in the similarity of the assemblages. The increase in elevation of the sampled sites did not produce significant changes in the abundance and richness of Tenebrionidae. There is no individual factor responsible for the darkling beetle communities structuration in these high-altitude environments. Different combinations of both local (soil and vegetation) and regional (climate and geographical distance) environmental factors together explain the ecoregional tenebrionid assemblages. We suggest including them among the focus groups in conservation studies to evaluate anthropogenic activities in this area.

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Distribution and environmental determinants of darkling beetles assemblages (Coleoptera: Tenebrionidae) in Península Valdés (Argentinean Patagonia)

Cheli

Carrara²,

Bandieri

et al. 2021

An. Acad. Bras. Ciênc.

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Arid lands provide several products and services to humankind, but human activities affect this environment, increasing the extinction risk of the native species.Thus, to successfully conserve the biodiversity of these ecosystems, it is necessary to identify which environmental factors infl uence the spatial distribution of the organisms that offer these benefi ts. Darkling beetles play a relevant role on the functioning of deserts. Although these insects are among the most abundant and diverse in these environments, there is no agreement on the relative importance that different environmental factors have as determinants of their spatial distribution. In this work, we assessed the role of climate, vegetation, and soil variables as factors that determine distribution patterns of darkling beetles within the Natural Protected Area Península Valdés (Northeastern Patagonia). Five groups of environmental units were identifi ed, each one with an exclusive tenebrionid species assemblage and different species diversity. The most infl uential environmental variables were temperature, precipitations, and soil texture. Results suggest that the magnitude of several ecosystem processes may vary among the groups of environmental units. We recommend prioritizing the conservation of the fi ve groups of environmental units and incorporating the darkling beetles-environment relationship in future conservation strategies for arid Patagonia.

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Description of the Egg and First-Instar Larva ofScotobius pilulariusGermar, 1823 (Coleoptera: Tenebrionidae: Scotobiini), and Analysis of Larval Primary Chaetotaxy

Cited by 6 publications

References 16 publications

Comparative diversity of Tenebrionids (Coleoptera) in two environments with different land uses

Comparative diversity of Tenebrionids (Coleoptera) in two environments with different land uses

Environmental factors determining the diversity of darkling beetles (Coleoptera: Tenebrionidae) in arid, high-altitude environments in Northwestern Argentina

Distribution and environmental determinants of darkling beetles assemblages (Coleoptera: Tenebrionidae) in Península Valdés (Argentinean Patagonia)

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