Results 41 to 50 of about 5,384 (163)

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

open access: yesEcological Entomology, Volume 51, Issue 2, Page 235-249, April 2026.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito   +13 more
wiley   +1 more source

A diagnostic of two species of of Odonata nymph Ischnura evansi (Morton) 1919 (Odonata: Coenagrionidae) and Anax prathenope(Seyls) 1839 (Odonata: Aeschidae) In Basra province

open access: yesالمجلة العراقية للاستزراع المائي, 2021
The research includes the diagnosis of two species of Odonata nymph Ischnura evansi (Morton, 1919), which belongs to the Coenagrionidae family, the Zygoptera, the Anax prathenope (seyls) of the Aeschnidae family, and the Anisoptera order of Odonata in ...
AlAA S. Jabbar   +2 more
doaj   +1 more source

Phenology determines seasonal variation in ectoparasite loads in a natural insect population [PDF]

open access: yes, 2010
1. The extent to which individuals are parasitised is a function of exposure to parasites and the immune response, which in ectotherms may be associated with temperature. 2.
Andrés   +68 more
core   +1 more source

Dragonflies and damselflies (Insecta: Odonata) of the northeastern region of Bangladesh with five new additions to the Odonata fauna of Bangladesh

open access: yesJournal of Threatened Taxa, 2015
Odonata were surveyed in one reserve forest, two national parks, one Eco Park, one lake and one University campus in the northeastern region of Bangladesh from March 2014 to March 2015.
M. Kawsar Khan
doaj   +3 more sources

Inconsistent effects of P enrichment and predator presence on food‐web dynamics in a bromeliad system

open access: yesOikos, Volume 2026, Issue 3, March 2026.
Food webs consist of trophic interactions of variable strength. However, it remains challenging to predict how changes in environmental conditions, such as nutrient enrichment, can affect these interactions. In this paper, we propose to integrate food web theory with ecological stoichiometry, which predicts how elemental ratios affect trophic ...
Pierre Rogy   +6 more
wiley   +1 more source

The complete mitochondrial genome of Enallagma cyathigerum (Odonata: Coenagrionidae) and phylogenetic analysis

open access: yesMitochondrial DNA. Part B. Resources, 2017
To better understand the diversity and evolution of Odonata, we sequenced and annotated the complete mitochondrial genome (mitogenome) of Enallagma cyathigerum. This mitogenome was 16,661 bp in size and encoded the typical 37 genes, i.e.
Li Zhang   +5 more
doaj   +1 more source

Odonata (Insecta) diversity of Kuldiha Wildlife Sanctuary and its adjoining areas, Odisha, eastern India

open access: yesJournal of Threatened Taxa, 2018
A study was carried out to assess the Odonata fauna of Kuldiha Wildlife Sanctuary, Odisha, eastern India from November 2012 to October 2013.  During the study a total of 54 species of odonates including 37 species of dragonflies (Anisoptera) and 17 ...
Subrat Debata, Kedar Kumar Swain
doaj   +1 more source

Forest Loss Influences Biomass Distribution Across Trophic Groups of Amazonian Stream Insects

open access: yesFreshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Changes in resource availability caused by deforestation can negatively impact freshwater ecosystems, with implications for trophic chains. We investigated both the direct and indirect effects of forest cover and allochthonous resource availability on the biomass distribution of larvae of aquatic insects (Ephemeroptera, Plecoptera, Trichoptera
Gabriel Martins Cruz   +8 more
wiley   +1 more source

New record of andromorphic Urothemis signata Rambur (Odonata: Libellulidae) from India

open access: yesRevista Chilena de Entomología, 2019
First case of an andromorphic female of Urothemis signata from eastern India is presented. Detail comparisons of the andromorphic female with mature male and female of this species are given.
Arajush Payra
doaj   +1 more source

Dragonfly Inventory and Active Time in Kasang Kulim Zoo Area, Riau, Indonesia

open access: yesBioeksperimen: Jurnal Penelitian Biologi, 2023
Dragonflies have an important role in ecosystem balance as biological control agents and environmental bioindicators because they are sensitive to changes in water quality.
Miranda Delithalia, Radith Mahatma
doaj   +1 more source

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