Results 31 to 40 of about 19,080 (352)

Odonata: Who They Are and What They Have Done for Us Lately: Classification and Ecosystem Services of Dragonflies

open access: yesInsects, 2019
Odonata (dragonflies and damselflies) are well-known but often poorly understood insects. Their phylogeny and classification have proved difficult to understand but, through use of modern morphological and molecular techniques, is becoming better ...
M. May
semanticscholar   +1 more source

The complex optic lobe of dragonflies

open access: yesbioRxiv, 2020
Dragonflies represent an ancient lineage of visual predators, which last shared a common ancestor with insect groups such as dipteran flies in the early Devonian, 406 million years ago [1,2].
J. Fabian   +3 more
semanticscholar   +1 more source

Observation of heterospecific mating attempt of Blue Chaser Libellula fulva Müller, 1764 and Broad-bodied Chaser L. depressa Linnaeus, 1758 (Anisoptera: Libellulidae)

open access: yesNatura Sloveniae, 2023
A successful copula formation between a male of Libellula fulva and a female of L. depressa was documented photographically on 23. 6. 2022 at a small stream in the Natura 2000 site Ličenca pri Poljčanah in NE Slovenia.
Matjaž Bedjanič
doaj   +1 more source

Diversity and conservation of European dragonflies and damselflies (Odonata)

open access: yesHydrobiologia, 2018
Based on a distribution database brought together for the recently published Atlas of the European dragonflies and damselflies, we describe the patterns of diversity and endemism of these insect groups.
V. Kalkman   +5 more
semanticscholar   +1 more source

Dragonflies in the City: Diversity of Odonates in Urban Davao, Philippines

open access: yes, 2020
Dragonflies are well-known group of insects because of their biological and ecological importance in a community, that is, they indicate the environmental health of an ecosystem.
Earl Sunday Niya Perez   +1 more
semanticscholar   +1 more source

THE SEASONAL ACTIVITY OF DRAGONFLY (ODONATA) IN ALTITUDINAL BELTS OF THE CENTRAL CAUCASUS

open access: yesЮг России: экология, развитие, 2014
The article examines the features of the seasonal activity of dragonflies within different altitudinal belts of the Central Caucasus. We have identified the duration of flight activity of adult dragonflies and the dependence of distributional pattern of ...
Kh. A. Ketenchiev, A. V. Tikhonova
doaj   +1 more source

Darwin Returns to the Galapagos: Genetic and Morphological Analyses Confirm the Presence of Tramea darwini at the Archipelago (Odonata, Libellulidae)

open access: yesInsects, 2020
The status of the Tramea species present in the Galapagos Islands (Odonata, Libellulidae) has been the subject of a long-standing debate among odonatologists.
María Olalla Lorenzo-Carballa   +3 more
doaj   +1 more source

Molecular basis of wax-based color change and UV reflection in dragonflies

open access: yeseLife, 2019
Many animals change their body color for visual signaling and environmental adaptation. Some dragonflies show wax-based color change and ultraviolet (UV) reflection, but the biochemical properties underlying the phenomena are totally unknown.
Ryo Futahashi   +11 more
semanticscholar   +1 more source

D2.4 - Dragonflies and insecticides

open access: yes, 2022
{"references": ["R.H.A. van Grunsven (2022), Dragonflies and insecticides"]}
openaire   +1 more source

Dragonflies and damselflies (Insecta: Odonata) from a Cerrado area at Triângulo Mineiro, Minas Gerais, Brazil

open access: yesBiota Neotropica, 2019
: Odonata is considered, among the aquatic insect orders, the second largest group in number of species. Its global richness is estimated in about 6,000 described species. The Brazilian richness represents around 14% of the world's odonatofauna, however,
Lucas Rodrigues Borges   +4 more
semanticscholar   +1 more source

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