Results 31 to 40 of about 5,053 (252)

Impact of environmental changes on the behavioral diversity of the Odonata (Insecta) in the Amazon

open access: yesScientific Reports, 2021
The odonates are insects that have a wide range of reproductive, ritualized territorial, and aggressive behaviors. Changes in behavior are the first response of most odonate species to environmental alterations.
Bethânia O. de Resende   +14 more
doaj   +1 more source

Field estimates of reproductive success in a model insect: behavioural surrogates are poor predictors of fitness [PDF]

open access: yes, 2011
Understanding, and therefore measuring, factors that determine fitness is a central problem in evolutionary biology. We studied a natural population of Coenagrion puella (Odonata: Zygoptera) over two entire breeding seasons, with over a thousand ...
Albon   +49 more
core   +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

The Odonata of Isle Royale, Michigan [PDF]

open access: yes, 2017
This paper presents a list of the Odonata recorded from Isle Royale National Park, located in northwestern Lake Superior. Collections from Isle Royale include 38 species of Anisoptera and 12 species of Zygoptera. The list is typical of the boreal regions
Van Buskirk, Josh
core   +2 more sources

Libellule et Demoisells (Insecta: Ordre des rdonates)

open access: yesEDIS, 2006
La famille des odonates inclus les libellules et les demoiselles. Elle représente l'un des groupes les plus renommé. Les odonates sont appréciés par l'amateur aussi bien que par le professionnel notamment pour leurs grandes tailles, couleurs, ainsi que ...
Seth Bybee
doaj   +5 more sources

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

Historical changes in the phenology of British Odonata are related to climate [PDF]

open access: yes, 2007
Responses of biota to climate change take a number of forms including distributional shifts, behavioural changes and life history changes. This study examined an extensive set of biological records to investigate changes in the timing of life history ...
Ando H   +34 more
core   +1 more source

Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]

open access: yes, 2017
Linking molecular evolution to biological function is a long-standing challenge in evolutionary biology. Some of the best examples of this involve opsins, the genes that encode the molecular basis of light reception.
Owens, Gregory L, Rennison, Diana J
core   +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

\u3ci\u3eTramea Calverti\u3c/i\u3e (Odonata: Libellulidae): New for Michigan With Notes on Other New Reports for the Great Lakes Region [PDF]

open access: yes, 2018
Beginning in late summer 2010, the Neotropical dragonfly Tramea calverti Muttkowski, striped saddlebags, was observed in a major northward movement in eastern North America. This species appeared for the first time in three Great Lakes states and Canada (
Craves, Julie A, O\u27Brien, Darrin
core   +2 more sources

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