Results 61 to 70 of about 3,565 (228)

Restoration using flow deflectors: a question of fine‐scale spatial layout in headwater stream beds

open access: yesRestoration Ecology, EarlyView.
Current European Union objectives for 2030 aim to restore ecosystems to halt biodiversity loss. Here, we studied the consequences of headwater stream restoration by placing large wood in the streambed to act as flow deflectors. We hypothesized that these flow deflectors would create a fine‐scale spatial arrangement of habitats, fostering a diverse and ...
Cybill Staentzel   +4 more
wiley   +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

Understanding antipredator strategies of insects: Human presence and escape behaviour in Odonata

open access: yesEcological Entomology, Volume 50, Issue 4, Page 682-692, August 2025.
We tested urbanisation effects, along with a range of life‐history, environmental and contextual traits, on tolerance towards humans—measured by flight initiation distance—in 14 Odonata (dragonflies and damselflies) Urbanisation had a generally weak effect on Odonata escape behaviour; however, odonates delayed their escape at sites with high human ...
Peter Mikula   +5 more
wiley   +1 more source

‘Nature of the year’ in Germany: An effective policy to raise public awareness?

open access: yesPeople and Nature, Volume 7, Issue 7, Page 1593-1604, July 2025.
Abstract Building public awareness for conservation can be done in different ways. However, the impact of the conservation marketing techniques is not well understood. The ‘nature of the year’ award is a public awareness building strategy for conservation in Germany, which aims to draw attention to annually selected species and their habitats. In order
Hilke Hollens‐Kuhr   +2 more
wiley   +1 more source

An observation on the Odonata fauna of the Asansol-Durgapur Industrial Area, Burdwan, West Bengal, India

open access: yesJournal of Threatened Taxa, 2016
The present investigation was undertaken as a pilot study to examine the diversity, occurrence and distribution pattern of dragonflies and damselflies (Odonata) from the selected study sites of the Asansol-Durgapur industrial area of Burdwan District of ...
Amar Kumar Nayak, Utpal Singha Roy
doaj   +1 more source

Do lifetime contest costs affect the evolution of assessment strategies? A meta‐analysis

open access: yesJournal of Animal Ecology, Volume 94, Issue 7, Page 1335-1345, July 2025.
Our meta‐analysis reveals unexpected patterns in the evolution of assessment strategies during animal contests. We show that self‐assessment dominates in high‐cost fights, challenging existing theories. This study provides novel insights into the link between fighting costs and behavioural evolution, with implications for understanding fitness ...
Clara Massote   +4 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

Asymmetric Micro‐Evolutionary Responses in a Warming World: Heat‐Driven Adaptation Enhances Metal Tolerance in a Planktonic Rotifer, but Not Vice Versa

open access: yesGlobal Change Biology, Volume 31, Issue 7, July 2025.
Rapid genetic adaptation is a potentially important mechanism by which natural populations can increase their tolerance to human‐induced environmental stressors. In our study, we demonstrated that zooplankton populations adapted to heat stress exhibited increased tolerance to copper toxicity.
Shuwen Han   +2 more
wiley   +1 more source

The mitochondrial genome of Atrocalopteryx melli Ris, 1912 (Zygoptera: Calopterygidae) via Ion Torrent PGM NGS sequencing

open access: yesMitochondrial DNA. Part B. Resources, 2018
The mitochondrial genome of Atrocalopteryx melli was sequenced and assembled via Next-Generation Sequencing (NGS) and iteratively assembly process with a reference seed.
Shaolin Xu   +6 more
doaj   +1 more source

Scientists' warning on the need for greater inclusion of dragonflies in global conservation

open access: yesInsect Conservation and Diversity, Volume 18, Issue 4, Page 465-484, July 2025.
Stressors to dragonflies are multiple, and in many cases interactive. Specialist species are at risk, while generalists can benefit from some human activities. Dragonflies are sentinels for conservation, being promising surrogates for other taxa while also being appealing to citizen science initiatives.
Michael J. Samways   +27 more
wiley   +1 more source

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