Results 11 to 20 of about 8,994 (256)

Zookeeper–Animal Bonds and Their Relationship with Conservation Action

open access: yesJournal of Zoological and Botanical Gardens, 2022
Human–animal relationships have been demonstrated to have impacts on animal and keeper welfare, although their impacts on zookeepers have been less studied outside of evaluating job satisfaction.
Veronica Thomas   +3 more
doaj   +1 more source

First record of Gynacantha limbalis Karsch, 1892 from Thailand (Odonata: Anisoptera: Aeshnidae) [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
Gynacantha limbalis Karsch, 1892 is reported for the first time from Thailand based on photographs taken at San Kala Khiri National Park, Songkhla province (Figure 1).
Andrew J. Pierce, Noppadon Makbun
doaj   +1 more source

Freshwater Reservoir, Ecological Traps and Source-Sink Dynamics

open access: yesDiversity, 2022
Odonata are biodiversity indicators that adequately represent many aquatic and semi-aquatic animal species. We recorded over two field seasons a rich lentic community of Odonata (18 species) in a large artificial freshwater reservoir (ca. 55 ha) built 40
Nina Melendez   +2 more
doaj   +1 more source

EcoDragons: A Game for Environmental Education and Public Outreach

open access: yesInsects, 2021
Environmental education is crucial to tackling the pressing ecological and societal issues on our planet. Although there are various ways to approach environmental education and raise public awareness, games are potentially an effective vehicle of ...
Rassim Khelifa, Hayat Mahdjoub
doaj   +1 more source

Tandem-wing interactions on aerodynamic performance inspired by dragonfly hovering

open access: yesRoyal Society Open Science, 2021
Dragonflies possess two pairs of wings and the interactions between forewing (FW) and hindwing (HW) play an important role in dragonfly flight. The effects of tandem-wing (TW) interactions on the aerodynamic performance of dragonfly hovering have been ...
Liansong Peng   +4 more
doaj   +1 more source

Effects of deformation and vibration characteristics of wings on flapping flight

open access: yesMechanical Engineering Journal, 2015
The dragonfly wing is passively deformed under flapping and has the strength to withstand high flapping frequency simultaneously. These characteristics of deformation and vibration of the wing are important for flapping flight.
Hisayoshi NAKA, Hiromu HASHIMOTO
doaj   +1 more source

Numerical Investigation on Flapping Aerodynamic Performance of Dragonfly Wings in Crosswind

open access: yesInternational Journal of Aerospace Engineering, 2020
Numerical simulations are performed to investigate the influence of crosswind on the aerodynamic characteristics of rigid dragonfly-like flapping wings through the solution of the three-dimensional unsteady Navier-Stokes equations. The aerodynamic forces,
Chao Wang   +3 more
doaj   +1 more source

The biting midge Forcipomyia paludis (Macfie, 1936) (Diptera: Ceratopogonidae) in Slovenia, Bosnia and Herzegovina, Croatia and Sweden

open access: yesNatura Sloveniae, 2017
Records of the biting midge Forcipomyia paludis (Macfie, 1936) from Slovenia and Bosnia and Herzegovina are reported herewith as the first finds of F. paludis in both countries, together with new records from Croatia and Sweden.
Damjan Vinko   +3 more
doaj   +1 more source

A computational study of the aerodynamic performance of a dragonfly forewing in gliding flight

open access: yesMATEC Web of Conferences, 2018
Gliding flight is a common mode of flight for dragonfly, the objective of the current research is to use numerical simulations to explore whether the corrugations have positive effect on aerodynamic performance of the dragonfly wings in gliding flight ...
Liu Huixiang   +4 more
doaj   +1 more source

Odonate species occupancy frequency distribution and abundance–occupancy relationship patterns in temporal and permanent water bodies in a subtropical area

open access: yesEcology and Evolution, 2020
This paper investigates species richness and species occupancy frequency distributions (SOFD) as well as patterns of abundance–occupancy relationship (SAOR) in Odonata (dragonflies and damselflies) in a subtropical area.
Samuel Renner   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy