Results 21 to 30 of about 742 (170)

Dragonflies and Damselflies (Odonata: Insecta) of the Bor Wildlife Sanctuary, Wardha, Maharashtra, Central India [PDF]

open access: yesTravaux du Muséum National d’Histoire Naturelle “Grigore Antipa”, 2020
Dragonfly and damselfly (Odonata) species diversity was studied in the Bor wildlife sanctuary from 2011 to 2018. A total of 72 species of odonates belonging to 8 families were recorded. The study adds three new species for the Vidarbha region.
Ashish Tiple
doaj   +3 more sources

The dragonfly Libellula quadrimaculata (Odonata: Libellulidae) makes optimal use of the dorsal fovea of the compound eyes during perching

open access: yesEuropean Journal of Entomology, 2003
We studied visual orientation and perching behaviour of a territorial libellulid dragonfly species, Libellula quadrimaculata. The studies were performed during sunny, cloudless conditions at a pond in southern Styria, Austria, from May to July of 2001 ...
Manuela SAUSENG   +2 more
doaj   +1 more source

Predation rate of dragonfly (Odonata: Libellulidae) on tilapia (Oreochromis niloticus Linnaeus 1758) and the availability of alternative preys (Insecta: Diptera: Chironomidae) to increase fish survival

open access: yesActa Scientiarum: Biological Sciences, 2023
The objective of this work was to evaluate the predation rates of two genera of Odonata Miathyria Kirby, 1889 and Erythemis Hagen, 1861 in post-larviculture of tilapia with and without availability of Chironomidae.
Murilo Henrique Tank Fortunato   +5 more
doaj   +1 more source

Chronic Exposure to High Concentrations of Road Salt Decreases the Immune Response of Dragonfly Larvae

open access: yesFrontiers in Ecology and Evolution, 2019
Salinization of freshwater ecosystems, due to the application of road salts, is recognized as a potential threat to aquatic communities. Much of the research on the impact of salinity has focused on performance metrics in vertebrates, including ...
Racquelle S. Mangahas   +4 more
doaj   +1 more source

Dragonflies and Damselflies (Odonata: Insecta) of Keoladeo National Park, Rajasthan, India

open access: yesJournal of Threatened Taxa, 2017
The present study was undertaken to examine the diversity, occurrence and distribution pattern of damselflies and dragonflies (Odonata) in Keoladeo National Park from 2010–2015.
Dheerendra Singh   +2 more
doaj   +1 more source

Odonate diversity of Nalsarovar Bird Sanctuary - a Ramsar site in Gujarat, India

open access: yesJournal of Threatened Taxa, 2018
Odonate diversity of Nalsarovar Bird Sanctuary, a Ramsar site in Gujarat, was studied between January 2015 and July 2017.  A total of 46 species belonging to two suborders, six families, and 27 genera were recorded, which included 14 species of Zygoptera
Darshana M. Rathod, B. M. Parasharya
doaj   +1 more source

An observation on the Odonata fauna of the Asansol-Durgapur Industrial Area, Burdwan, West Bengal, India

open access: yesJournal of Threatened Taxa, 2016
The present investigation was undertaken as a pilot study to examine the diversity, occurrence and distribution pattern of dragonflies and damselflies (Odonata) from the selected study sites of the Asansol-Durgapur industrial area of Burdwan District of ...
Amar Kumar Nayak, Utpal Singha Roy
doaj   +1 more source

Phenotypic plasticity in a population of odonates [PDF]

open access: yesScientific Reports, 2018
AbstractThe maintenance of phenotypic plasticity within a species ensures survival through environmental flux. Plastic strategies are increasingly important given the number and magnitude of modern anthropogenic threats to the environment. We tested for phenotypic plasticity in the odonate Argia vivida in response to resource limitation.
Bowman, Randi M.   +6 more
openaire   +2 more sources

Urban Areas Create Refugia for Odonates in a Semi-Arid Region

open access: yesInsects, 2021
In western Texas, most wetlands are fed from precipitation runoff, making them sensitive to drought regimes, anthropogenic land-use activities in their surrounding watersheds, and the interactive effect between these two factors.
Danielle M. Husband, Nancy E. McIntyre
doaj   +1 more source

New records of dragonflies and damselflies (Insecta: Odonata) from the Western Ghats of Maharashtra, India

open access: yesJournal of Threatened Taxa, 2014
Odonates were surveyed across 10 localities from Western Ghats of Maharashtra State, India during 2011-2013. We recorded 64 species belonging to 40 genera and 12 families. Seven species are new records for the region, and four out of them are new records
P. Koparde, P. Mhaske, A. Patwardhan
doaj   +1 more source

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