Results 11 to 20 of about 6,161 (248)

Biogeographic regionalization of Odonata (Insecta) in the Neotropics: contrasting Anisoptera and Zygoptera spatial patterns [PDF]

open access: goldFrontiers of Biogeography
The Neotropical region stands as a significant hotspot for Odonata diversity, yet comprehensive spatial patterns have remained less elucidated. This study aimed to provide a comprehensive biogeographical regionalization of the order Odonata across the ...
Peter Löwenberg-Neto, Paola E. Coelho
doaj   +4 more sources

Nuevos Zygoptera y Anisoptera (Insecta: Odonata) en el Cretácico inferior de España

open access: diamondEstudios Geologicos, 1993
El estudio de nuevos insectos cretácicos hallados en los yacimientos de calizas litográficas españoles ha dado como resultado el reconocimiento de tres nuevas formas de odonatos (Insecta, Odonata).
A. Nel, X. Martínez-Delclos
doaj   +3 more sources

HOPEAPHENOL-O-GLYCOSIDE, A COMPOUND ISOLATED FROM STEM BARK Anisoptera marginata (Dipterocarpaceae)

open access: goldIndonesian Journal of Chemistry, 2010
Isolation and structure elucidation of some compounds from stem bark of Anisoptera marginata had been done. The isolation of those compounds was carried out by chromatographyc method and structure elucidation was performed by interpretation of ...
Sri Atun
doaj   +2 more sources

A NEW SPECIES OF ANISOPTERA (DIPTEROCARPACEAE)

open access: greenReinwardtia, 2015
Tree up to 51 m tall, with 30 m straight, cylindrical bole, at 1.20 m about 70 cm in diameter. Crown rather sparse, brownish green. Bark grey brown, fissured, grooves about 7 mm deep; 10—20 mm thick with pale brown, round lenticels, under-bark whitish or
Anwari Dilmy
doaj   +1 more source

A checklist of chromosome numbers and a review of karyotype variation in Odonata of the world [PDF]

open access: yesComparative Cytogenetics, 2020
The ancient insect order Odonata is divided into three suborders: Anisoptera and Zygoptera with approximately 3000 species worldwide each, and Anisozygoptera with only four extant species in the relict family Epiophlebiidae.
Valentina G. Kuznetsova   +1 more
doaj   +3 more sources

Metacommunity patterns of Amazonian Odonata: the role of environmental gradients and major rivers [PDF]

open access: yesPeerJ, 2019
Background We identified and classified damselfly (Zygoptera) and dragonfly (Anisoptera) metacommunities in Brazilian Amazonia, relating species distribution patterns to known biological gradients and biogeographical history.
Fernanda Alves-Martins   +5 more
doaj   +2 more sources

First record of Odonata nymphs from Karun River, south-west Iran [PDF]

open access: yesIranian Journal of Animal Biosystematics, 2014
Odonata fauna is poorly known in Iran and most of the previous studies deal with northern parts of the country, studying adult specimens. We sampled Karun River for aquatic insects in the city of Ahvaz in south-west of Iran during 2009–2011. As a result,
Mehdi Esfandiari   +2 more
doaj   +1 more source

Odonata (Insecta) Communities in a Lowland Mixed Mosaic Forest in Central Kalimantan, Indonesia

open access: yesEcologies, 2023
Assessing a taxon’s response to change in environmental variables is fundamental knowledge to understanding trends in species diversity, abundance, and distribution patterns.
Jorian A. Hendriks   +6 more
doaj   +1 more source

The odonatan insects from the Paleocene of Menat, central France [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The current knowledge on the Paleocene Odonata is rather limited despite the fact that it is a crucial period for the history of this order. An overview of the fossil odonatans from the Paleocene of Menat (France) is provided.
ANDRÉ NEL, CORENTIN JOUAULT
doaj   +1 more source

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