Results 81 to 90 of about 5,418 (200)

First Records for \u3ci\u3eAeshna Sitchensis\u3c/i\u3e (Odonata: Aeshnidae) and \u3ci\u3eEnallagma Clausum\u3c/i\u3e (Odonata: Coenagrionidae), and a Northwestern Record for the State-Endangered \u3ci\u3eSomatochlora Incurvata\u3c/i\u3e (Odonata: Corduliidae) in Wisconsin [PDF]

open access: yes, 2018
While surveying for Odonata in coastal peatlands and associated shoreline areas adjacent to Lake Superior in Wisconsin, we documented populations of two new state record species, the zig-zag darner (Aeshna sitchensis Hagen) and the alkali bluet ...
DuBois, Robert B   +4 more
core   +2 more sources

Effect of salinity gradients on species composition of Odonata naiads [PDF]

open access: yesArthropods, 2018
In present study the relationship between salinity gradients of various water bodies and inhabiting Odonata naiads was studied. Naiads, being a popular group of water pollution indicators, were studied.
Ahmed Zia   +2 more
doaj  

Update of Arkansas Odonata (Anisoptera) [PDF]

open access: yes, 1976
Seventy-five species of dragonflies have been reported in Arkansas. The present study provides 43 species; records of the other 32 are drawn from the literature and personal communication with individuals.
Rickett, John D.
core   +2 more sources

The impact of climate-induced distributional changes on the validity of biological water quality metrics [PDF]

open access: yes, 2010
We present data on the distributional changes within an order of macroinvertebrates used in biological water quality monitoring. The British Odonata (dragonflies and damselflies) have been shown to be expanding their range northwards and this could ...
Harvey, IF, Hassall, C, Thompson, DJ
core   +1 more source

Contribución al conocimiento y distribución de los odonatos (Insecta: Odonata) en Colombia

open access: yesActa Biológica Colombiana, 2005
En este trabajo se identificaron taxonómicamente 677 ejemplares adultos del orden Odonata a nivel de familia y géneros comunes, depositados en la Colección Entomológica del Instituto de Ciencias Naturales (ICN) de la Universidad Nacional de Colombia.
Ana María Ceballos Giraldo   +1 more
doaj  

Carmel River Lagoon Enhancement Project: Water Quality and Aquatic Wildlife Monitoring, 2005-6 [PDF]

open access: yes, 2006
In summer and fall 2004, the California Department of Parks and Recreation (DPR) initiated the Carmel River Lagoon Enhancement Project. The project involved excavation of a dry remnant Arm of the lagoon and adjacent disused farmland to form a significant
Casagrande, Joel   +3 more
core  

A Preservative-Free Emergent Trap for the Isotopic and Elemental Analysis of Emergent Insects From a Wetland System [PDF]

open access: yes, 2018
This study reports a cost-effective, live emergent trap designed for the preservative-free use in both biogeochemical and ecological analyses of emerging insects. The trap proved to be advantageous in several ways.
Kaster, Jerry L, MacKenzie, Richard A
core   +2 more sources

Teratologias alar e abdominal observadas em Sympetrum fonscolombii (Sélys, 1840) (Odonata: Libellulidae) dos Açores [PDF]

open access: yes, 2012
Copyright © 2012 Sociedad Entomológica Aragonesa.Descreve-se um caso de teratologia alar num macho e um caso de deformação abdominal numa fêmea de Sympetrum fonscolombii.
Vieira, Virgílio
core  

Effects of density experience on mate guarding behavior by adult male Kanzawa spider mites [PDF]

open access: yes, 2008
In the Kanzawa spider mite, Tetranychus kanzawai (Acari: Tetranychidae), adult males guard pre-reproductive quiescent females. I experimentally examined the effects of density experience during development and/or after adult emergence on precopulatory ...
Oku, K.
core   +3 more sources

The genus Sympetrum Newmann, 1833 (Odonata Libellulidae)

open access: yesBiodiversity Journal, 2020
The genus Sympetrum Newmann, 1833 (Odonata Libellulidae)
openaire   +2 more sources

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