Results 21 to 30 of about 1,603 (179)

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

Odonata assemblages in anthropogenically impacted lotic habitats

open access: yesJournal of Limnology, 2020
Increasing human pressures have a negative impact on freshwater habitats and their biota worldwide. To protect habitats and the species contained within them, ecological assessments over a gradient of near natural to degraded freshwater habitats are ...
Marina Vilenica   +3 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 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

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

Perilestes eustaquioi sp. nov. and new distributional records of Perilestidae (Odonata) in Brazil

open access: yesZoologia (Curitiba), 2015
Perilestes eustaquioi sp. nov. (holotype male deposited in ABMM collection) from the state of Bahia (municipality of Una), northeastern Brazil, is described and illustrated based on one male specimen. It differs from the other species of the genus mainly
Angelo B. M. Machado
doaj   +1 more source

Diversity of Odonates (Odonata, Anisoptera & Zygoptera) in the Theniet El ‎Had National Park-North West of Algeria [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2023
The aim of this study is to make an inventory of the fauna of the Odonata in Theniet El Had National Park, which helps managers to make appropriate decisions for the conservation of these species. The site is entirely forested (Cedrus and Quercus species)
Mohamed Mairif   +2 more
doaj  

Odonata from Bahia Solano, Colombian Pacific Region [PDF]

open access: yesCheck List, 2020
We present a checklist of Odonata species from Bahia Solano Municipality in the Pacific Region of Colombia. Sampling effort included 715 h between December 2018 and January 2020. We recorded 51 species in 27 genera and seven families.
Fredy Palacino-Rodríguez   +2 more
doaj   +3 more sources

Climatic drivers prevail in montane and lowland Odonata latitudinal diversity gradients, but human modification erodes lowland patterns

open access: yesEcography, EarlyView.
Latitudinal diversity gradients (LDGs) arise from the interplay of historical, ecological, and evolutionary processes, yet these drivers may differ across landforms. Mountains, with steep elevational and climatic gradients, often sustain distinct diversity dynamics compared with adjacent lowlands, where vertical climatic gradients are weak and human ...
Zhenyuan Liu   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy