Results 11 to 20 of about 5,797 (201)

Estimating distribution area in six Argia damselflies (Insecta: Odonata: Coenagrionidae) including A. garrisoni, a threatened species

open access: diamondRevista Mexicana de Biodiversidad, 2018
In the article “Estimating distribution area in six Argia damselflies (Insecta: Odonata: Coenagrionidae) including A. garrisoni, a threatened species” published with Revista Mexicana de Biodiversidad 89(3), 2018: 921 - 926, there were errors in page 922.
Laura Rangel-Sánchez   +3 more
doaj   +3 more sources

New record of Cyanallagma demoiselle Denck, Ehlert & Pinto, 2023 (Odonata, Zygoptera, Coenagrionidae) in southern Brazil [PDF]

open access: goldCheck List
During a field expedition in the municipality of Araquari, state of Santa Catarina, southern Brazil, adults of the damselfly Cyanallagma demoiselle Denck, Ehlert & Pinto 2023 (Odonata, Zygoptera, Coenagrionidae) were collected.
Mateus M. Pires   +4 more
doaj   +4 more sources

Assessing the Relationship Between Macroinvertebrate Metrics and Fine Sediment Index for Ecological Biomonitoring in the Little Akaki River, Addis Ababa, Ethiopia. [PDF]

open access: yesEcol Evol
Habitat quality had a positive correlation with percentage of Ephemeroptera, percentage of EOT, and Shannon diversity index (r = 0.833, r = 0.880, and r = 0.939, respectively). PSI had positive correlation with number of taxa, and ASPT‐ETHbios (r = 0.819, and r = 0.798, respectively). Most sites were heavily sedimented.
Adino A, Mengistou S.
europepmc   +2 more sources

Testing the Optimal Foraging Theory in a Generalist Feeder: The Case of Reintroduced European Pond Turtles and Its Impact on Macroinvertebrates Communities. [PDF]

open access: yesEcol Evol
In this study we investigated the macroinvertebrate (MI) communities in two newly created, man‐made ponds concurrently with the diet of captive‐bred European pond turtles that were translocated there. We aimed at assessing whether turtles were operating as generalist feeders, and if successive reintroductions of turtles would affect the overall MI ...
Meyer A   +6 more
europepmc   +2 more sources

New species records in Acanthagrion, Nehalennia, and Perilestes (Odonata: Zygoptera) for Colombia

open access: yesBiota Colombiana, 2022
We record for the first time Acanthagrion jessei, Nehalennia minuta, and Perilestes solutus in Colombia, based on males and females taken at the campus Barcelona at the Universidad de Los Llanos, located in the foothills of the Colombian Eastern Andes in
Karen Lineke Alvarez Alvarez   +2 more
doaj   +1 more source

Catalogación de las libélulas (Insecta: Odonata) de un humedal andino en el departamento de Cusco, Perú

open access: yesRevista Chilena de Entomología, 2023
Tres especies de odonatos representadas en la Colección Entomológica de la Universidad Nacional de San Antonio Abad del Cusco (CEUC) son catalogadas para el humedal andino Lucre - Huacarpay, departamento de Cusco, Perú y se aportan datos de distribución ...
Araseli Elme-Tumpay   +3 more
doaj   +1 more source

Increased duration of extreme thermal events negatively affects cold acclimation ability in a high-latitude, freshwater ectotherm (Ischnura elegans; Odonata: Coenagrionidae)

open access: yesEuropean Journal of Entomology, 2020
Instances of heat waves and cold snaps are becoming more frequent and of increasing duration worldwide. It is well established that short exposure to high or low-temperatures, such as during extreme weather events, often results in adaptive (acclimation ...
Lesley A. SMITH, Lesley T. LANCASTER
doaj   +1 more source

Relative Effects of Eutrophication and Warming on Freshwater Ecosystems Across Ecological Levels. [PDF]

open access: yesGlob Chang Biol
This experimental study explores the effects of global change on different ecological levels. We demonstrate that warming primarily impacts lower ecological levels, such as community composition, whereas eutrophication predominantly affects the most integrative ecological level, that is, ecosystem.
Marin V   +3 more
europepmc   +2 more sources

Diversity of two families Libellulidae and Coenagrionidae (Odonata) in Regional Institute of Education Campus, Bhubaneswar, Odisha, India

open access: yesJournal of Threatened Taxa, 2017
Libellulidae and Coenagrionidae are the most dominant families among dragonflies and damselflies.  The present study deals with the diversity, occurrence and present status of libellulids and coenagrionids within the Regional Institute of Education ...
Priyamvada Pandey   +1 more
doaj   +1 more source

Initial preference of oviposition sites: discrimination between living and dead plant material in Sympecma fusca and Coenagrion caerulescens (Odonata: Lestidae, Coenagrionidae)

open access: yesEuropean Journal of Entomology, 2001
Sympecma fusca and Coenagrion caerulescens mainly deposit their eggs into floating dead parts of emergent plants. In their initial choice of oviposition site (selection of landing site) S. fusca does not distinguish between fresh and dead plant material,
Andreas MARTENS
doaj   +1 more source

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