BACKGROUND Tropical mountain forests are hotspots of biodiversity hosting a huge but little known diversity of insects that is endangered by habitat destruction and climate change. Therefore, rapid assessment approaches of insect diversity are urgently needed to complement slower traditional taxonomic approaches. We empirically compare different DNA-based species delimitation approaches for a r...

A Hildoglochiceras -rich horizon is reported from a thin carbonate intercalation within the siliciclastic Upper Jurassic Jhuran Formation of Jara Dome, western Kachchh Mainland. The specimens have been used for first population-level study genus based on multivariate analysis. High phenotype instability in large sample confirms occurrence transient forms between morphospecies. Key morphological...

RESUMO The permanence of a plant species in forest community depends on its number specimens and distribution the various sizes individuals, including seedlings. Seedlings seeds from remnant Pirassununga were collected analyzed for degree threat, possible height adult individual, occurrence phytophysiognomies region morphological aspects. 116 seedlings available 39 morphospecies collected, germ...

An accurate classification is the basis for research in biology. Morphometrics and morphospecies play an important role modern taxonomy, with geometric morphometrics increasingly applied as a favourite analytical tool. Yet, really large samples are seldom available species even less common palaeontology, where often identified, described compared using just one or very few specimens. The impact...

BACKGROUND Trigonopterus weevils are widely distributed throughout Melanesia and hyperdiverse in New Guinea. They are a dominant feature in natural forests, with narrow altitudinal zonation. Their use in community ecology has been precluded by the "taxonomic impediment". METHODOLOGY/PRINCIPAL FINDINGS We sampled >6,500 specimens from seven areas across New Guinea; 1,002 specimens assigned to ...