1,721,001 research outputs found
Hemipraocis Kulzer 1958
No full textSubgenus Hemipraocis Kulzer, 1958 Subgeneric characteristics. Species of Praocis (Hemipraocis) are characterized by a wider body shape, conspicuously convex, clypeal suture not covered by frons; prosternum horizontal, with anterior margin wider, rounded, lacking edge; width of pronotum twice its length and widest at base; lateral margin of pronotum and elytron with one row of long setae, suture flat (Kulzer 1958).Published as part of Flores, Gustavo E., Carrara, Rodolfo & Cheli, Germán H., 2011, Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks, pp. 39-50 in Zootaxa 2965 on page 41, DOI: 10.5281/zenodo.20598
FIGURES 1−6. 1 in Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks
Get PDFFIGURES 1−6. 1. Praocis sellata bruchi, holotype HNHM; 2. P. sellata topali, paratype HNHM; 3. Praocis sellata peninsularis ssp. nov., holotype; 4. Praocis sellata bergi, paratype HNHM; 5. P. sellata granulipennis ssp. nov., paratype; 6. Calymmophorus peninsularis sp. nov., paratype.Published as part of Flores, Gustavo E., Carrara, Rodolfo & Cheli, Germán H., 2011, Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks, pp. 39-50 in Zootaxa 2965 on page 44, DOI: 10.5281/zenodo.20598
The species-energy theory: A role for energy variability
Get PDFSpecies-energy theory posits that energy availability regulates population sizes, extinction rates and ultimately species richness. This theory has focused mostly on total energy as a measure of energy availability. However, because energy variation can also influence population sizes and extinction rates, species-energy theory should arguably consider simultaneously both total energy and its variation. Using data on species richness of land birds and mammals, we compared the fit of three species-energy models including total energy, energy variation or both combined. We show that the combination of total energy and energy variation has greater predictive power than any of them considered separately. We also evaluate three crucial assumptions of this modified species-energy theory and show that they are supported by available data. These results illuminate the current debate on climate change, given that both average conditions and variability of climatic conditions are likely to change in the future.Fil: Carrara, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; ArgentinaFil: Vazquez, Diego P.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentin
Endemic tenebrionids (Coleoptera: Tenebrionidae) from the Patagonian steppe: a preliminary identification of areas of micro-endemism and richness hotspots
Get PDFBased 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.Fil: Carrara, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza. Instituto Argentino de Investigaciones de Zonas Aridas; ArgentinaFil: Flores, Gustavo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza. Instituto Argentino de Investigaciones de Zonas Aridas; Argentin
Two new species of Nyctelia Latreille (Coleoptera: Tenebrionidae) from western Argentina, with zoogeographical and ecological remarks on the high mountain habitat
No full textTwo new species of the genus Nyctelia Latreille (Pimeliinae: Nycteliini) from high mountains in central-western Argentina are described, N. nevadoensis sp. nov. and N. setipennis sp. nov. Distributional and habitat records and habitus photographs for these two new species are included, with comparisons to other known species of the genus. A discussion on the biogeography and the non sympatry with other species of Nyctelia of these two new species is presented. Lectotpye is designated for Nyctelia alutacea Fairmaire, 1876.Fil: Flores, Gustavo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; ArgentinaFil: Carrara, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentin
Praocis Eschscholtz 1829
No full textGenus Praocis Eschscholtz, 1829 Generic characteristics. Species of Praocis can be recognized by having maxillary palps with last segment axeshaped; pronotum with anterior margin concave, width of posterior margin exceeding width of anterior margin, single lateral margin slender, expanded, remote from disc, and anterior angles rounded; mesosternum inclined forward, separated from prosternum; elytron with punctuate surface, very variable among the subgenera and species in features such as with or without carinae, lateral margin rounded, well demarcated with a finer edge or carina-shaped, single or double.Published as part of Flores, Gustavo E., Carrara, Rodolfo & Cheli, Germán H., 2011, Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks, pp. 39-50 in Zootaxa 2965 on page 41, DOI: 10.5281/zenodo.20598
Maps of potential biodiversity: when the tools for regional conservation planning clash with species ecological niches
No full textMaps of potential biodiversity are prominent tools for regional conservation planning because they allow to quantify the diversity of species that potentially inhabit different habitats. These maps are constructed from modeling species ecological niches based on the association between the geographical localities where species were detected and the environmental variables at those localities. Previous researches addressed the development of MPB for administrative regions using regional species distributions data to modeling ecological niches, which may lead to flawed predictions on potential biodiversity. Our aim is to assess the consequences of failing to include all available records on full species distribution to develop MPB. As a study case, we produced two MPBs for an administrative region of Argentina using RSD and FSD data sets of 14 species of insects and performed Environmental Niche Factor Analysis to model their ecological niches. Our results evidenced that both MPB were not spatially congruent in their predictions on potential biodiversity, because the ecological niches represented by RSD and FSD data were different in their position and volume. We found that the MPB based on RSD data may underpredict the potential biodiversity of distinct habitats at the landscape level, and that the use of this map may underestimate areas with different conservation potential within an administrative region. These results suggest that the choice of the extent of geographic records used to construct the MPB strongly conditions the quality and credibility of these maps.Fil: Carrara, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; ArgentinaFil: Roig, Sergio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentin
Endemic epigean Tenebrionids (Coleoptera: Tenebrionidae) from the Andean Region: exploring the patagonian-diversification hypothesis
Get PDFTenebrionidae is a diverse insect family of Coleoptera that shows high levels of endemicity in epigean species. For the Andean region, which is divided into three subregions: Central Chilean, Subantarctic and Patagonian, it has been hypothesized that epigean tenebrionids have diversified in the Patagonian subregion and subsequently, they dispersed to Subantarctic and Central Chilean subregions. In this work, based on information obtained from museum collections and scientific studies, we presented the first list of endemic epigean tenebrionids from the Andean region with their taxonomic arrangement and geographic distribution. Moreover, we used these data to explore the veracity of the Patagonian-diversification hypothesis. A total of 416 species grouped into six subfamilies, 17 tribes and 41 genera were identified as endemic to the Andean region. Considering the spatial distribution it was observed that subfamilies, tribes, genera and species were unequally distributed across subregions. Results did not support the Patagonian-diversification hypothesis; to the contrary, they were more concordant with processes of isolation among subregions that have promoted speciation by interrupting gene flow among populations, resulting in endemism because species can not expand their range sizes. Finally, we discuss the implications of our findings to be considered in biodiversity conservation, because endemic species, by their high extinction risk, are primary targets in conservation strategies.Fil: Carrara, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; ArgentinaFil: Flores, Gustavo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentin
Calymmophorus Solier 1840
No full textGenus <i>Calymmophorus</i> Solier, 1840 <p> <b>Generic characteristics.</b> The five known species of <i>Calymmophorus</i> are characterized by head hypognathus; antennae reaching 3/4 along lateral margin of pronotum; anterior area of clypeus bent downwards forming a right angle, with margin broadened; genae fused with clypeus; pronotum with anterior margin hood-shaped, produced anteriorly over the head; anterior angles acute; lateral margin at a lower level than disc; prosternum horizontal, posteriorly subrectangular, not expanded, with distinctive anterior margin projected anteriorly covering mouthparts ventrally; each elytron with two carinae halfway between suture and lateral margin (Kulzer 1958).</p>Published as part of <i>Flores, Gustavo E., Carrara, Rodolfo & Cheli, Germán H., 2011, Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks, pp. 39-50 in Zootaxa 2965</i> on page 45, DOI: <a href="http://zenodo.org/record/205983">10.5281/zenodo.205983</a>
Praocis (Hemipraocis) sellata Berg 1889
No full textPraocis (Hemipraocis) sellata Berg, 1889 This species is characterized by its round shape, width of elytra equal to length, and lateral margin of pronotum and elytron with long, black setae (Kulzer 1958). The most recent key for the subgenus Hemipraocis is that by Kulzer (1958) to separate three subspecies of Praocis (Hemipraocis) sellata Berg and other five species. Later, Kaszab (1964) described Praocis (Hemipraocis) sellata topali which is synonymized in this paper with P. (H.) sellata bruchi. Flores (2007, 2009) established three synonymies within the subgenus. A new key to identify the current five subspecies of Praocis (Hemipraocis) sellata is herein provided. Type material examined in the present study for Praocis (Hemipraocis) sellata sellata Berg and P. (Hemipraocis) sellata bergi Kulzer 1958 is listed in Appendix 2 and for P. (Hemipraocis) sellata bruchi in the previous section.Published as part of Flores, Gustavo E., Carrara, Rodolfo & Cheli, Germán H., 2011, Three new Praociini (Coleoptera: Tenebrionidae) from Peninsula Valdés (Argentina), with zoogeographical and ecological remarks, pp. 39-50 in Zootaxa 2965 on page 42, DOI: 10.5281/zenodo.20598
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