Results 21 to 30 of about 1,609 (181)

Immune function and parasite resistance in male and polymorphic female Coenagrion puella

open access: yesBMC Evolutionary Biology, 2006
Background Colour polymorphisms are widespread and one of the prime examples is the colour polymorphism in female coenagrionid damselflies: one female morph resembles the male colour (andromorph) while one, or more, female morphs are described as ...
Rolff Jens   +3 more
doaj   +1 more source

An updated list of Odonata of southwestern Bangladesh

open access: yesJournal of Threatened Taxa, 2018
An odonate survey was conducted throughout the southwestern region of Bangladesh, concentrating on eight districts and the Sundarban, from August 2014 to August 2016.
M. Sajjad Hossain Tuhin, M. Kawsar Khan
doaj   +1 more source

Physicochemical Properties as Driver of Odonata Diversity in Oil Palm Waterways

open access: yesFrontiers in Forests and Global Change, 2021
Large-scale oil palm agriculture has caused deforestation in the tropics, but also degrades stream water quality and reduces aquatic biodiversity.
Muhamad Ishak   +7 more
doaj   +1 more source

A framework and case study to systematically identify long‐term insect abundance and diversity datasets

open access: yesConservation Science and Practice, 2022
Biodiversity is in crisis, and insects are no exception. To understand insect population and community trends globally, it is necessary to identify and synthesize diverse datasets representing different taxa, regions, and habitats.
Eliza M. Grames   +13 more
doaj   +1 more source

Odonata Assemblages in Urban Semi-Natural Wetlands

open access: yesInsects
As the human population in urban areas is continuously growing, urbanization is one of the greatest threats to biodiversity. To mitigate the negative effects, the inclusion of blue zones (aquatic habitats) in modern urban development practices is ...
Marina Vilenica   +7 more
doaj   +1 more source

Calopteryx Damselfly Dispersions Arising from Multiscale Responses to Landscape Structure

open access: yesEcology and Society, 2000
Using spatially explicit simulation models, we explored the extent to which fine-scale (i.e., meters to tens of meters) movement behaviors could be used to predict broader scale patterns of distribution on heterogeneous landscapes.
Ian Jonsen, Philip D. Taylor
doaj   +1 more source

Odonata (Insecta) diversity of Chinnar Wildlife Sanctuary, the southern Western Ghats, India

open access: yesJournal of Threatened Taxa, 2015
A study was conducted at Chinnar Wildlife Sanctuary, Idukki District, Kerala, the southern Western Ghats, to assess the diversity of odonates. We report 48 species of odonates, which include 31 species of Anisoptera (dragonflies) and 17 species of ...
C.K. Adarsh, R. Arunraj, P.O. Nameer
doaj   +3 more sources

Odonates of Coimbatore District, Tamil Nadu, India

open access: yesJournal of Threatened Taxa, 2017
Odonates were surveyed in Coimbatore District from September 2012 to January 2016.  The survey sites covered three major rivers—the Noyyal, Bhavani and Aliyar.
M. Suhirtha Muhil, P. Pramod
doaj   +1 more source

Aquatic Macrophyte Vegetation Promotes Taxonomic and Functional Diversity of Odonata Assemblages in Intermittent Karst Rivers in the Mediterranean

open access: yesDiversity, 2022
Assemblages of adult Odonata were studied in four intermittent karst rivers encompassing macrophyte-rich (MRH) and macrophyte-poor habitats (MPH) in southern Europe, where temporary lotic habitats are the predominant freshwater type but are still ...
Marina Vilenica   +6 more
doaj   +1 more source

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

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