Temporal and spatial patterns of tenebrionid beetle diversity in NW Patagonia, Argentina

Sackmann, Paula; Flores, Gustavo E.

doi:10.1016/j.jaridenv.2009.05.007

Cited by 27 publications

(30 citation statements)

References 36 publications

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“…). We did not, however, observe stronger declines in abundance in more intensively managed land uses (Sackmann and Flores ). Our findings clearly show taxon‐specific seasonal changes in habitat or food resources that were associated with specific farmland uses.…”

Section: Discussioncontrasting

confidence: 86%

“…Beetle species richness declined significantly in all land uses between spring and summer, a result that was consistent with predictions of stronger declines in species richness and abundance in more intensively managed land uses between spring and summer (Hill , Sackmann and Flores ). Significantly lower species richness during late summer may be explained by life cycle dynamics (Sackmann and Flores ), with many species being less active or aestivating underground in adult or larvae form during hot summer conditions (Lovei and Sunderland ).…”

Section: Discussionsupporting

confidence: 84%

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Contrasting beetle assemblage responses to cultivated farmlands and native woodlands in a dynamic agricultural landscape

Driscoll

Barton

et al. 2017

Ecosphere

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Abstract. There is an urgent need to identify ways of managing agricultural landscapes for biodiversity conservation without reducing food production. Farming practices that consider spatio-temporal heterogeneity of farm fields may be a feasible alternative to large-scale revegetation of farmlands for maintaining arthropod biodiversity and their important ecological function. We examined seasonal differences in beetle assemblages in woodland remnants and four adjoining farmland uses in a highly modified agricultural landscape in southeastern Australia. The farmland uses were crops, fallows, and two restoration treatments (fine woody debris applied over harvested crop fields, and restoration plantings). Unexpectedly, overall species richness was significantly lower in remnants than in adjacent farmlands. Remnants and farmlands supported significantly different assemblages, with a third of species found in both habitats. Abundance responses were taxon-specific and influenced by interactions between land use and season. In particular, predator abundance was significantly higher in plantings and fallows during spring compared to summer. Detritivore abundance was significantly higher in the woody debris compared to the adjacent remnants. Herbivore abundance did not differ between remnants and farmlands over time. Complex responses provide strong support for a mosaic of land uses to effectively conserve different beetle groups. Species richness results suggest that further agricultural intensification, in farm fields and through the removal of remnant vegetation, risks reducing beetle diversity in this region. Maintaining farmland heterogeneity with a mix of low-intensity land uses, such as conservation tillage, crop-fallow rotation, restoration plantings, and the novel application of fine woody debris over cultivated fields, may provide seasonal refuge and resources for beetles.

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Section: Discussioncontrasting

confidence: 86%

Section: Discussionsupporting

confidence: 84%

Contrasting beetle assemblage responses to cultivated farmlands and native woodlands in a dynamic agricultural landscape

Driscoll

Barton

et al. 2017

Ecosphere

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“…Considering the species list, it was possible to recognize that 98% of species belong to the tribes Scotobiini, Nycteliini and Praociini. This result coincides with that of Kuschel (1969), who identified these tribes as the most representative of the Patagonian steppe, and with those of Sackmann and Flores (2009) and Carrara et al (2011a) who found the dominance of species of these three tribes for small-scale studies within the steppe. The high occurrence of endemic tenebrionids in the Patagonian steppe compared with other close arid biogeographic provinces suggests a role of its environmental history as the primary cause.…”

Section: Endemic Tenebrionids From the Patagonian Steppesupporting

confidence: 91%

“…). Others have considered its diversity and distributional patterns within local steppe areas (Sackmann & Flores ; Carrara et al . ).…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, several investigations have focused on endemic tenebrionid species together with other insect taxa to delimit areas of endemism in the Patagonian steppe Morrone et al 2002;Domínguez et al 2006). Others have considered its diversity and distributional patterns within local steppe areas (Sackmann & Flores 2009;Carrara et al 2011a). Despite these studies, the total number and identities of endemic tenebrionids that inhabit the entire Patagonian steppe were unknown until now.…”

Section: Introductionmentioning

confidence: 99%

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Endemic tenebrionids (Coleoptera: Tenebrionidae) from the Patagonian steppe: a preliminary identification of areas of micro‐endemism and richness hotspots

Carrara

Flores

2012

Entomological Science

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Based on data from sixteen museum collections we listed the endemic tenebrionids that inhabit the Patagonian steppe. Then, according to the geographical location of the species, we identified areas of micro‐endemism and hotspots within this biogeographic province. Results showed 115 endemic tenebrionid species from the Patagonian steppe, 25 areas of micro‐endemism and five hotspots. We used these outcomes to identify areas of importance for conservation. Based on the comparison with other biogeographic provinces, we suggest that the Patagonian steppe constitutes a center of high endemism for tenebrionids. We hypothesize that the isolation of the Patagonian steppe from other arid areas would cause the high occurrence of endemism. In addition, we suggest processes that could be responsible for the origin of the areas of micro‐endemism and hotspots identified in this work.

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Influences of shrub vegetation on distribution and diversity of a ground beetle community in a Gobi desert ecosystem

Liu

et al. 2012

Biodivers Conserv

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Temporal and spatial patterns of tenebrionid beetle diversity in NW Patagonia, Argentina

Cited by 27 publications

References 36 publications

Contrasting beetle assemblage responses to cultivated farmlands and native woodlands in a dynamic agricultural landscape

Contrasting beetle assemblage responses to cultivated farmlands and native woodlands in a dynamic agricultural landscape

Endemic tenebrionids (Coleoptera: Tenebrionidae) from the Patagonian steppe: a preliminary identification of areas of micro‐endemism and richness hotspots

Influences of shrub vegetation on distribution and diversity of a ground beetle community in a Gobi desert ecosystem

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