Results 21 to 30 of about 351 (104)

Effects of intraspecific competition on the life cycle of the stonefly, Nemurella pictetii (Plecoptera: Nemouridae) [PDF]

open access: yes, 2008
Background: Considerable variation of life cycle duration in given insect species has been frequently recorded. Splitting of populations into cohorts with different life cycle lengths may occur, sometimes even between siblings from the same batch. Larval
Reimo Lieske, Peter Zwick
core   +1 more source

Intraspecific predation in immature Coenagrion puella (L.): a switch in food selection? (Zygoptera: Coenagrionidae) [PDF]

open access: yes, 1997
Observations on cannibalism in outdoor insectaries are presented. The behavioural interactions are described. Cannibalism (in both sexes) occurred only during periods of cold weather.
Kröger, C., Rolff, Jens
core   +1 more source

Distribution trends of European dragonflies under climate change

open access: yesDiversity and Distributions, Volume 25, Issue 6, Page 936-950, June 2019., 2019
Abstract Aim Poleward range shifts of species are among the most obvious effects of climate change on biodiversity. As a consequence of these range shifts, species communities are predicted to become increasingly composed of warm‐dwelling species, but this has only been studied for a limited number of taxa, mainly birds, butterflies and plants.
Tim Termaat   +18 more
wiley   +1 more source

Regional variations in occupancy frequency distribution patterns between odonate assemblages in Fennoscandia

open access: yesEcosphere, Volume 9, Issue 4, April 2018., 2018
Abstract Odonate (damselfly and dragonfly) species richness and species occupancy frequency distributions (SOFDs) were analyzed in relation to geographical location in standing waters (lakes and ponds) in Fennoscandia, from southern Sweden to central Finland. In total, 46 dragonfly and damselfly species were recorded from 292 waterbodies.
Esa Korkeamäki   +4 more
wiley   +1 more source

Biodiversity and ecosystem functioning in natural bog pools and those created by rewetting schemes

open access: yesWIREs Water, Volume 2, Issue 2, Page 65-84, March/April 2015., 2015
Anthropogenic drainage and cutting over of peatlands have historically occurred worldwide leading to erosion, issues with water quality, loss of biodiversity, and reduced rates of carbon accumulation. In recent years, rewetting measures have attempted to address these issues.
Jeannie M Beadle   +2 more
wiley   +1 more source

Threats from the air: damselfly predation on diverse prey taxa [PDF]

open access: yes, 2020
To understand the diversity and strength of predation in natural communities, researchers must quantify the total amount of prey species in the diet of predators.
Chen H.   +9 more
core   +4 more sources

Gomphus Nieuwsbrief Jaargang 2 — Nr. 1 (2008) [PDF]

open access: yes, 2008
* Populatieschattingen van waterjuffers in het Hannecartbos. * Het libellenjaar 2006 in Vlaanderen * Verslag van de startdag in Leuven * Excursiekalender 2008 * Telemetrie bij Libellen * Nederlandse namen van alle Europese soorten ...
Libellenvereniging Vlaanderen
core   +1 more source

Investigating odonates' response to climate change in Great Britain: A tale of two strategies

open access: yesDiversity and Distributions, Volume 30, Issue 4, April 2024.
Abstract Aim Species are largely thought to maintain broadly static niches over time, an assumption underpinning much theoretical ecology including the implementation of ecological models to project species' current and future distributions. Here, we assess niche conservatism in odonates in Great Britain over the past six decades by simultaneously ...
Daisy O'Neill   +5 more
wiley   +1 more source

The dragonfly fauna of the Grotmoor (Segeberg district) [PDF]

open access: yes, 2022
Die Libellenfauna des Grotmoores (Kreis Segeberg, Schleswig-Holstein) wurde zwischen Juni und Oktober 2021 bei 23 Begehungen anhand der Imagines erfasst.
Loock, Volker
core   +1 more source

Aportacions odonatològiques a la província de Girona (Catalunya) [PDF]

open access: yes, 2000
En el present treball s'aportan noves citacions de l'odonatofauna gironina. En total s'han recopilat les observacions i captures de 53 espècies pertanyents al ordre Odonata, de les quals 24 sp. representen el subordre dels zigöpters i 29 sp.
Abós Araguas, Llorenç   +1 more
core  

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