نتایج جستجو برای: anisoptera

تعداد نتایج: 238  

Journal: :Indian journal of entomology 2022

This baseline field study carried out from April 2019 to September 2020, in the Pulwama district of Kashmir Himalayan Region reported a total 11 species Odonata- under two suborders namely Anisoptera (Dragonflies: 7 genera and 9 species) Zygoptera (Damselflies: 2 each). Family Libellulidae, suborder (Dragonflies) with seven distributed five was most dominant family. Pantala flavescens common sp...

2017
Steven D Wiederman Joseph M Fabian James R Dunbier David C O'Carroll

When a human catches a ball, they estimate future target location based on the current trajectory. How animals, small and large, encode such predictive processes at the single neuron level is unknown. Here we describe small target-selective neurons in predatory dragonflies that exhibit localized enhanced sensitivity for targets displaced to new locations just ahead of the prior path, with suppr...

2006
Shannon J. McCauley

I examined the effects of isolation on the structure of both adult and larval dragonfly (Odonata: Anisoptera) communities forming at physically identical artificial ponds over two years. Isolation, whether measured by distance to the nearest source habitat or by connectivity to multiple sources, was significantly negatively related to the species richness of dragonflies observed at and collecte...

Journal: :Zootaxa 2013
Haomiao Zhang Xiaoli Tong

The larvae of seven species of Chlorogomphidae from South China are described based on reared larvae, i.e. Chlorogomphus kitawakii Karube, C. nasutus nasutus Needham, C. papilio Ris, C. shanicus Wilson, C. usudai Ishida, C. yokoii Karube and Chloropetalia soarer Wilson. The adult female of C. kitawakii is first described. Biological information on Chlorogomphidae is provided and a diagnosis of ...

Journal: :The Journal of experimental biology 1995
Marden

Newly emerged adult dragonflies are physiologically immature in a number of ways, including the mass, ultrastructure and biochemistry of their flight muscles. In Libellula pulchella dragonflies, adult maturation of flight muscle is accompanied by striking changes in thermal physiology. Vertical force production during fixed flight attempts in newly emerged adults (tenerals) shows a broad platea...

Journal: :Evolution; international journal of organic evolution 2003
R Stoks M A McPeek J L Mitchell

In a large behavioral experiment we reconstructed the evolution of behavioral responses to predators to explore how interactions with predators have shaped the evolution of their prey's behavior. All Enallagma damselfly species reduced both movement and feeding in the presence of coexisting predators. Some Enallagma species inhabit water bodies with both fish and dragonflies, and these species ...

2006
T. SFORMO P. DOAK

1. We examined the thermal ecology of Interior Alaska dragonflies (Odonata: Anisoptera). The relationships between mass and passive cooling rate, wing loading, minimum flight temperature (MFT) and thermoregulating ability were examined. These properties were also compared between the behavioural classes: perchers and fliers. All factors with the addition of seasonal and daily flight activity we...

Journal: :Acta Amazonica 2022

ABSTRACT The relationship between Odonata and vegetation in Amazonia has been studied primarily streams. In this study, I examined the abundance of adult two types (shrubs herbs) surrounding an oxbow lake Peruvian Amazon. Daytime visual samplings were carried out time blocks along transects each habitat. Thirteen taxa identified. Five species similarly abundant both habitats, three used mainly ...

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