Results 11 to 20 of about 5,450 (180)

Unexpected Evolutionary Divergence of Tachykinin-Positive Neurons Innervating the Central Complex in Hexapods. [PDF]

J Comp Neurol
The central complex is a group of midline‐spanning neuropils in the brain of insects with a key role in goal‐directed orientation and navigation. Immunolabeling in 25 species, ranging from bristletails to flies, shows that neurons containing peptides of the tachykinin family of neuropeptides are present in most species studied.
Homberg U, Xu J, Keyser T, Suzdalenkov F, Wimmer F, Fromandi M, Bianco S, Tez M, Dippel S.   +8 more
europepmc   +2 more sources

Setting boundaries: Environmental and spatial effects on Odonata larvae distribution (Insecta)

Anais da Academia Brasileira de Ciências, 2015
Environmental characteristics and spatial distances between sites have been used to explain species distribution in the environment, through Neutral (space) and Niche theory (environment) predictions. We evaluated the effects of spatial and environmental
Thiago P. Mendes, Helena S. R. Cabette, Leandro Juen   +2 more
doaj   +1 more source

First record of Odonata nymphs from Karun River, south-west Iran [PDF]

Iranian Journal of Animal Biosystematics, 2014
Odonata fauna is poorly known in Iran and most of the previous studies deal with northern parts of the country, studying adult specimens. We sampled Karun River for aquatic insects in the city of Ahvaz in south-west of Iran during 2009–2011. As a result,
Mehdi Esfandiari, Saber Sadeghi, Amir Khadempour   +2 more
doaj   +1 more source

Higher gregarine parasitism often in sibling species of host damselflies with smaller geographical distributions [PDF]

, 2012
1. This study investigated inter-specific variation in parasitism by gregarines (Eugregarinorida: Actinocephalidae), among sibling species of damselflies (Odonata: Zygoptera), in relation to relative size of geographical ranges of host species.
Forbes, MR, Hassall, C, Mlynarek, JJ
core   +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 development of sexual differences in body size in Odonata in relation to mating systems

European Journal of Entomology, 2007
Adult body size is the result of important environmental, maternal and/or genetic effects acting on animals during development. Here we investigate how sexual size dimorphism (SSD) develops in seven species of Odonata: Anax imperator, Cordulegaster ...
Martin-Alejandro SERRANO-MENESES, Mónica AZPILICUETA-AMORÍN, Tamás SZÉKELY, Alex CÓRDOBA-AGUILAR   +3 more
doaj   +1 more source

Flight of the dragonflies and damselflies [PDF]

, 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.
Alexander DE, Alexander DE, Azuma A, Bomphrey RJ, Chadwick LE, Corbet S, Dijkstra K-DB, Ennos AR, Grimaldi D, Hertel H, Huai-Ti Lin, Kesel AB, Liu H, Luttges M, Magnan A, May ML, Neville AC, Newman BG, Newman DJS, Okamoto M, Per Henningsson, Rajabi H, Richard J. Bomphrey, Rudolph R, Rüppell G, Stepniewski WZ, Toshiyuki Nakata, Wakeling JM, Wakeling JM, Wakeling JM   +29 more
core   +2 more sources

Biogeographic regionalization of Odonata (Insecta) in the Neotropics: contrasting Anisoptera and Zygoptera spatial patterns [PDF]

Frontiers of Biogeography
The Neotropical region stands as a significant hotspot for Odonata diversity, yet comprehensive spatial patterns have remained less elucidated. This study aimed to provide a comprehensive biogeographical regionalization of the order Odonata across the ...
Peter Löwenberg-Neto, Paola E. Coelho
doaj   +3 more sources

Material composition of the mouthpart cuticle in a damselfly larva (Insecta: Odonata) and its biomechanical significance [PDF]

Royal Society Open Science, 2018
Odonata larvae are key predators in their habitats. They catch prey with a unique and highly efficient apparatus, the prehensile mask. The mandibles and maxillae, however, play the lead in handling and crushing the food.
Sebastian Büsse, Stanislav N. Gorb
doaj   +1 more source

Description of the final instar larva of argia serva hagein selys, 1865 (Odonata coenagrionidae) [PDF]

, 2018
The American genus Argia, with more than 100 species described, is the most speciose genus of Odonata in the world. In this contribution, the final stadium larva of Argia serva, the southernmost distributed species of Argia, is described and diagnosed ...
del Palacio, Alejandro, Lozano, Federico, Muzón, Javier   +2 more
core   +1 more source