Results 11 to 20 of about 628 (126)

Litter identity mediates predator impacts on the functioning of an aquatic detritus-based food web [PDF]

Oecologia, 2014
During past decades, several mechanisms such as resource quality and habitat complexity have been proposed to explain variations in the strength of trophic cascades across ecosystems.
J. Jabiol, Julien Cornut, M. Danger, Marion Jouffroy, A. Elger, É. Chauvet   +5 more
semanticscholar   +7 more sources

Caracterización biométrica de larvas de Cordulegaster boltonii (Donovan, 1807) en Sierra Nevada (sureste de la Península Ibérica)

Limnetica
Cordulegaster boltonii es una libélula de amplia distribución en Europa y el norte de África, con poblaciones registradas en más de 25 países. Sin embargo, los estudios biométricos realizados en larvas de esta especie son muy escasos.
Ángel Romero Martín, Francisco J. Márquez, Antonio Jesús López Montoya, Juan Diego Gilbert Rus   +3 more
semanticscholar   +4 more sources

Geographical variation in size of the three final stadia of Cordulegaster boltonii (Donovan, 1807) larvae in the Iberian Peninsula (Odonata: Cordulegastridae)

International Journal of Odonatology
A two-variable analysis of male and female Cordulegaster boltonii larvae (head width and hindwing sheath length) in specimens from five Iberian populations was carried out with the objective of ascertaining whether these traits differ between populations.
M. Hernández, P. Casanueva, Javier Oscoz, L. F. Sánchez-Sastre, M. Ferreras‐Romero, Francisco Campos   +5 more
semanticscholar   +2 more sources

On the occurrence of Cordulegaster boltonii (Donovan, 1807) (Odonata: Cordulegastridae) in the western part of the Lithuanian Lake District (Poland)

Zoology and Ecology, 2012
The authors analyse three sites of occurrence of Cordulegaster boltonii in the western part of the Lithuanian Lake District (Suwalki Region, north-east Poland). The area is situated within a distance of over 300 km between large agglomerations of the species’ sites in the Tuchola Forest (north Poland) and in south-east Lithuania.
P. Buczyński, Łukasz Dawidowicz, Weronika Jarska, G. Tończyk   +3 more
semanticscholar   +2 more sources

Morphological and geographical traits of the british odonata. [PDF]

Biodivers Data J, 2014
Trait data are fundamental for many aspects of ecological research, particularly for modeling species response to environmental change. We synthesised information from the literature (mainly field guides) and direct measurements from museum specimens ...
Powney GD, Brooks SJ, Barwell LJ, Bowles P, Fitt RN, Pavitt A, Spriggs RA, Isaac NJ.   +7 more
europepmc   +4 more sources

The first emerging records of a dragonfly in the dark zone of subterranean ecosystems: Exuviae and newly emerged adults of Hyrcanian Goldenring, Cordulegaster vanbrinkae in Danial Cave, northern Iran. [PDF]

Ecol Evol
The paper is about the first emerging records of an Odonata species in the dark zones of subterranean ecosystems. According to the scientific literature, the records are new for the order Odonata. Also, the study considered some behaviors of Hyrcanian Goldenring, Cordulegaster vanbrinkae in darkness.
Ghelich Khani P, Kiany M, Qashqaei AT.
europepmc   +2 more sources

Lokální disperse páskovce Cordulegaster boltonii [PDF]

, 2014
We carried out a pilot study of local dispersion and patterns of movement of Golden- ringed dragonfly Cordulegaster boltonii (Odonata: Cordulegasteridae). Cordulegasteridae is a family with many primitive traits present and rather restricted geographical distribution ranges (at least among European species).
Hančíková, Barbora
openaire   +4 more sources

¿Varía el tamaño de las exuvias de Cordulegaster boltonii (Donovan, 1807) (Odonata: Cordulegastridae) durante el periodo de emergencia en ríos de montaña? [PDF]

, 2017
En algunas especies de odonatos las larvas que emergen más pronto tienen mayor tamaño que las que emergen más tarde. En este trabajo analizamos si esto sucede en Cordulegaster boltonii (Donovan, 1807). Medidas de longitud de la tibia, anchura cefálica y longitud y anchura de la máscara de 165 exuvias recogidas en el río Eresma, centro de España, a 1200
Campos, F. (Francisco), Casanueva-Gomez, P. (Patricia), Hernandez-Minguillon, M. A. (Maria Angeles)   +2 more
openaire   +3 more sources

Landscape of fear in freshwater ecotones: How predation risk and light conditions affect mesopredator activity and foraging in springs

Freshwater Biology, Volume 68, Issue 10, Page 1716-1725, October 2023., 2023
Abstract Springs are environments that can provide general insights into factors favouring diversity in ecotones, but they are often neglected in freshwater studies. One of the challenging processes acting in ecotones is the landscape of fear (LOF), the space–time variation of perceived predation risk.
Raoul Manenti, Martina Forlani, Stefano Lapadula, Matteo Galbiati, Benedetta Barzaghi, Gentile Francesco Ficetola, Andrea Melotto   +6 more
wiley   +1 more source

Species‐specific functional traits rather than phylogenetic relatedness better predict future range‐shift responses of odonates

Insect Conservation and Diversity, Volume 16, Issue 5, Page 574-587, September 2023., 2023
The modelling results for 66 Iberian and Moroccan Odonata species predict that an increase in temperature and drought events will have a clear impact on their distribution. Species‐specific functional traits can anticipate the range‐shift responses of Odonata species, while phylogenetic relatedness is a poor predictor of their future distributions ...
Aida Viza, Aina Garcia‐Raventós, Joan Ll. Riera, Xavier Maynou, Ricard Martín, Florent Prunier, Mohamed El Haissoufi, Cesc Múrria   +7 more
wiley   +1 more source