Results 31 to 40 of about 17,523 (284)

Seasonal Migrations of Pantala flavescens (Odonata: Libellulidae) in Middle Asia and Understanding of the Migration Model in the Afro-Asian Region Using Stable Isotopes of Hydrogen

open access: yesInsects, 2020
In Middle Asia, the dragonfly Pantala flavescens makes regular seasonal migrations. In spring, sexually mature dragonflies (immigrants) arrive in this region for reproduction.
Sergey N. Borisov   +4 more
doaj   +1 more source

Dragonfly and Damselfly Database

open access: yes, 2022
 Dragonfly and Damselfly database belongs to   Dragonfly and Damselfly database belongs to Dr.Hemachandra Kularatne and Susantha Udagedara  
Hemachandra Kularatne (13182197)   +1 more
core   +1 more source

IUCN Red List: over 6000 dragonfly species assessed

open access: yes, 2022
Following the most recent update of the IUCN Redlist (IUCN, 2021), as of 9th December 2021, the number of species at risk of extinction on the Red List has exceeded 40,000 for the first time. The IUCN Red List now includes 142,577 species of which 40,084
Lozano, Federico, Clausnitzer, Viola
core   +1 more source

Expanding the Cultural Reach of Zoos

open access: yesJournal of Zoological and Botanical Gardens
It is surprising that, despite focusing on delivering engaging and informative content to zoo and aquarium visitors nationwide, relatively few zoos or aquariums incorporate culture or the extensive species and place-based knowledge of local communities ...
Alexandra Vaccaro, Jill Korach
doaj   +1 more source

Aerodynamic Effects of Corrugation on Dragonfly Hindwing

open access: yesHangkong gongcheng jinzhan, 2019
To study aerodynamic performance of the dragonfly wing at gliding flight at different Reynolds numbers, a three-dimensional model of the dragonfly hindwing with corrugation and a three-dimensional flat plate with the same shape of the dragonfly hindwing ...
Luo Yun   +4 more
doaj   +1 more source

Dragonfly-Wing-Inspired Inclined Irregular Conical Structures for Broadband Omnidirectional Antireflection Coatings

open access: yes, 2019
Blue-tailed forest hawk dragonfly (Orthetrum triangulare) wings exhibit a high transparency at wide viewing angles. The broadband omnidirectional antireflection behaviors of dragonfly wings result from the random arrangement of inclined irregular conical
Chen-Yu Chien (3406031)   +3 more
core   +1 more source

Impact of a small artificial water source on the diversity of odonates (Insecta : Odonata) in an urban landscape [PDF]

open access: yesArthropods, 2021
Rapid urbanisation is mainly responsible for the degradation and fragmentation of natural ecosystems in urban areas. Dragonflies and damselflies (Odonata) constitute an important part of urban biodiversity.
Pawan U. Gajbe
doaj  

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

DNA Barcoding and New Records of Odonates (Insecta: Odonata) from Paraíba State, Brazil

open access: yesDiversity, 2022
Odonates (Insecta: Odonata) are important insects in the food chains of freshwater environments around the world, being used as a model species for areas of behavior and analysis of environmental quality. In Brazil, especially in the Northeastern region,
Ricardo Koroiva   +2 more
doaj   +1 more source

Recapture rates and habitat associations of White-faced Darter Leucorhinnia dubia on Fenn's and Whixall Moss, Shropshire, UK [PDF]

open access: yes, 2018
Land-use change and habitat loss are important drivers of biodiversity decline at both global and local scales. To protect species from the impacts of land-use change it is important to understand the population dynamics and habitat associations across ...
Geary, Matthew   +5 more
core   +1 more source

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