Results 31 to 40 of about 35,330 (281)

Aerodynamic Effects of Corrugation on Dragonfly Hindwing

Hangkong 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, He Guoyi, Wang Qi, Song Hang, Chen Donghui   +4 more
doaj   +1 more source

Formation of Wormholes by Dark Matter in the Galaxy Dragonfly 44

, 2018
Recently, ultra diffuse galaxy (UDG) of Dragonfly 44 in the Coma Cluster was observed and observations of the rotational speed suggest that its mass is almost same as the mass of the Milky Way. On the other hand, interestingly, the galaxy emits only 1 \%
Halilsoy, Mustafa, Islam, Sayeedul, Rahaman, Farook, Övgün, Ali   +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]

Arthropods, 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  

Macromia alleghaniensis (Odonata: Macromiidae): New For Michigan, with Clarifications of Northern Records [PDF]

, 2017
An Alleghany River Cruiser, Macromia alleghaniensis Williamson (Odonata: Macromiidae), collected in Cass County, Michigan on 18 June 2014, represents the first record of the species for the state, as well as the northernmost unequivocal record in North ...
Craves, Julie A, O’Brien, Darrin S
core   +2 more sources

Expanding the Cultural Reach of Zoos

Journal 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

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

Diversity, 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, Vanessa Gabrielle Nóbrega Gomes, Diogo Silva Vilela   +2 more
doaj   +1 more source

The impacts of environmental warming on Odonata: a review [PDF]

, 2008
Climate change brings with it unprecedented rates of increase in environmental temperature, which will have major consequences for the earth's flora and fauna.
Adams J., Alcamo J., Angelibert S., Aoki T., Arendt J. D., Askew R. R., Atkinson D., Balmford A., Bendell B. E., Blanckenhorn W. U., Blumenshine S. C., Boehms C., Boothby J., Boothby J., Both C., Braune E., Brown J. H., Burgmer T., Carpenter S. R., Cham S. A., Chang X., Clark T. E., Collingham Y. C., Conrad K. F., Conrad K. F., Coope G. R., Coope G. R., Coope G. R., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Cordero Rivera A., Crick H. Q.P., Crowley P. H., Dale M., Danilevskii A. S., Daufresne M., Davis M. B., Dawson T. P., De Block M., De Block M., De Block M., De Block M., Dingemanse N. J., Dorn N. J., Dunn R. R., Eversham B. C., Feuchtmayr H. D., Fitter A. H., Flenner I., Grabow K., Gresens S. E., Hammond C. O., Harada T., Harrington R., Harrington R., Hassall C., Hassall C., Heino J., Henrickson B., Hickling R., Hickling R., Hilfert-Rüppell D., Hill J. K., Hitch A. T., Hostetier S. W., Hunger H., Hynes H. B.N., Ingram B. R., Ingram B. R., Jenner C. E., Johansson F., Johansson F., Karl T. R., Knight T. M., Krishnaraj R., Lawton J. H., Leggott M., Lutz P. E., Lutz P. E., Mann M. E., Masseau M. J., May M. L., May M. L., Meehl G. A., Menetrey N., Merritt R., Michiels N. K., Mooij W. M., Nicholls R. J., Nicholls R. J., Norling U., Norling U., Norling U., Opdam P., Ott J., Ott J., Ott J., Pandey J. P., Parmesan C., Parmesan C., Parmesan C., Pearce-Higgins J. W., Phillips B. L., Pickup J., Piironen J., Pilgrim J. M., Polcyn D. M., Pritchard G., Pritchard G., Pritchard G., Pritchard G., Pritchard G., Pritchard G., Purse B. V., Rantala M. J., Robb T., Robb T., Rolff J., Rouquette J. R., Roy D. B., Sawchyn W. W., Schneider C., Shennan I., Sherratt T. N., Simberloff D., Simmons A. D., Siva-Jothy M. T., Siva-Jothy M. T., Slatkin M., Soluk D. A., Sternberg K., Sternberg K., Sternberg K., Sternberg K., Suhling F., Suhling F., Thompson D. J., Thompson D. J., Thompson D. J., Thompson D. J., Thompson D. J., Travis J. M.J., Valtonen P., Van De Meutter F., Van Doorslaer W., Veron J. E.N., Walther G. R., Waringer J. A., Watanabe M., Watts P. C., Williams D. D., Winder M., Woodward G., Woodward G., Wootton R. J., Xenopoulos M. A., Xenopoulos M. A., Yourth C. P., Zwolsman J. J.G.   +165 more
core   +1 more source

The Dragonfly Nearby Galaxies Survey. I. Substantial variation in the diffuse stellar halos around spiral galaxies

, 2016
Galaxies are thought to grow through accretion; as less massive galaxies are disrupted and merge over time, their debris results in diffuse, clumpy stellar halos enveloping the central galaxy. Here we present a study of the variation in the stellar halos
Abraham, Roberto, Merritt, Allison, van Dokkum, Pieter, Zhang, Jielai   +3 more
core   +1 more source

New Distribution Records for \u3ci\u3eOphiogomphus Howei\u3c/i\u3e (Odonata: Gomphidae) [PDF]

, 2017
New distribution records establish Ophiogomphus howei as a resident species in Wisconsin. Kentucky, Maine, and Minnesota are added as new state records for this seldom-encountered gomphid dragonfly.
Tennessen, K. J
core   +2 more sources

The Effect of the Phase Angle between the Forewing and Hindwing on the Aerodynamic Performance of a Dragonfly-Type Ornithopter

Aerospace, 2016
Dragonflies achieve agile maneuverability by flapping four wings independently. Different phase angles between the flapping forewing and hindwing have been observed during various flight modes.
Hidetoshi Takahashi, Alice Concordel, Jamie Paik, Isao Shimoyama   +3 more
doaj   +1 more source