Results 11 to 20 of about 3,565 (228)

Male coercion and convenience polyandry in a calopterygid damselfly [PDF]

open access: goldJournal of Insect Science, 2002
Copulation in odonates requires female cooperation because females must raise their abdomen to allow intromission. Nevertheless in Calopteryx haemorrhoidalis haemorrhoidalis (Odonata) males commonly grasp ovipositing females and apparently force copulations.
A. Cordero, José Á. Andrés
  +8 more sources

Nonadaptive radiation in damselflies [PDF]

open access: yesEvolutionary Applications, 2015
AbstractAdaptive radiations have long served as living libraries to study the build‐up of species richness; however, they do not provide good models for radiations that exhibit negligible adaptive disparity. Here, we review work on damselflies to argue that nonadaptive mechanisms were predominant in the radiation of this group and have driven species ...
Maren Wellenreuther   +2 more
openaire   +3 more sources

Flight of the dragonflies and damselflies [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2016
This work is a synthesis of our current understanding of the mechanics, aerodynamics and visually mediated control of dragonfly and damselfly flight, with the addition of new experimental and computational data in several key areas. These are: the diversity of dragonfly wing morphologies, the aerodynamics of gliding flight, force generation in flapping
Richard J. Bomphrey   +3 more
openaire   +3 more sources

The dragonflies and damselflies (Odonata) of Angola [PDF]

open access: yesAfrican Invertebrates, 2017
Prior to 2012, only 158 species of Odonata were known from Angola. Surveys in 2012 and 2013 added 76 species and two further additions in 2016 brought the national total to 236 species. We provide a revised checklist with taxonomic notes and discuss the history of research, the biogeography of the fauna, and the potential for further discoveries.
Kipping,Jens   +3 more
openaire   +6 more sources

Inter-annual variation in prevalence and intensity of mite parasitism relates to appearance and expression of damselfly resistance

open access: yesBMC Ecology, 2010
Background Insects can resist parasites using the costly process of melanotic encapsulation. This form of physiological resistance has been studied under laboratory conditions, but the abiotic and biotic factors affecting resistance in natural insect ...
Robb Tonia, Nagel Laura, Forbes Mark R
doaj   +1 more source

Odonata of Maludam National Park, Sarawak, Malaysia

open access: yesJournal of Threatened Taxa, 2015
This paper presents records of Odonata collected in July 2012 in Maludam National Park, Sarawak, Malaysia. A total of 48 species from nine families were collected. Three species were new to science, one of which has already been described as Prodasineura
Rory A. Dow   +2 more
doaj   +3 more sources

Odonata (Insecta) diversity of Kuldiha Wildlife Sanctuary and its adjoining areas, Odisha, eastern India

open access: yesJournal of Threatened Taxa, 2018
A study was carried out to assess the Odonata fauna of Kuldiha Wildlife Sanctuary, Odisha, eastern India from November 2012 to October 2013.  During the study a total of 54 species of odonates including 37 species of dragonflies (Anisoptera) and 17 ...
Subrat Debata, Kedar Kumar Swain
doaj   +1 more source

Physicochemical Properties as Driver of Odonata Diversity in Oil Palm Waterways

open access: yesFrontiers in Forests and Global Change, 2021
Large-scale oil palm agriculture has caused deforestation in the tropics, but also degrades stream water quality and reduces aquatic biodiversity.
Muhamad Ishak   +7 more
doaj   +1 more source

Interaction between juvenile narrow-claw crayfish, Astacus leptodactylus (Eschscholtz), and common water frog, Rana esculenta (L.), tadpoles or common blue damselfly, Enallagma cyathigerum (Charpentier), larvae during rearing under controlled conditions

open access: yesArchives of Polish Fisheries, 2014
Interactions were studied among juvenile narrow-claw crayfish, Astacus leptodactylus (Eschscholtz), and common water frog, Rana esculenta (L.), tadpoles and common blue damselfly, Enallagma cyathigerum (Charpentier), larvae during rearing under ...
Ulikowski Dariusz   +4 more
doaj   +1 more source

New, rare and vagrant damselflies and dragonflies (Insecta: Odonata) in the Kaliningrad Oblast, north-western Russia

open access: yesActa Biologica Sibirica, 2022
The paper presents new remarkable records of selected rare and uncommon Odonata species found in the Kaliningrad Oblast based primarily on our surveys conducted since 2007.
Nazar A. Shapoval   +2 more
doaj   +1 more source

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