Results 1 to 10 of about 413 (126)

Boyeria irene (Fonscolombe, 1838) y Cordulegaster boltonii (Donovan, 1807) (Odonata): dos estrategias en cuanto a sustratos de emergencia de larvas en un mismo hábitat [PDF]

open access: yesGraellsia, 2017
Se presentan datos sobre emergencia de Cordulegaster boltonii y Boyeria irene en un río de montaña del centro de España (altitud 1200 m s.n.m.) donde coexisten ambas especies, basados en la recogida semanal de exuvias.
Patricia Casanueva   +3 more
doaj   +11 more sources

Biometric differences between several populations of Cordulegaster boltonii (Odonata: Cordulegastridae) in Ibero-Maghrebian area [PDF]

open access: yesEuropean Journal of Entomology, 2020
Biometric data of the exuviae of female larvae of the dragonfly Cordulegaster boltonii collected in Portugal, Spain and Morocco were analysed to determine whether the size of three exuvial structures measured differed depending on the geographic ...
Patricia CASANUEVA   +8 more
doaj   +8 more sources

Molecular Phylogeny of the Family Cordulegastridae (Odonata) Worldwide [PDF]

open access: yesInsects
In this study, we present the first attempt at a molecular phylogenetic analysis of the entire family of Cordulegastridae involving 60% of its known species.
Thomas Schneider   +9 more
doaj   +4 more sources

The complete mitochondrial genome of Chlorogomphus shanicus Wilson, 2002 (Anisoptera: Chlorogomphidae), an endemic species in South China [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2023
In this study, the complete mitochondrial genome of Chlorogomphus shanicus Wilson, 2002 was reported, and the maximum-likelihood (ML) phylogenetic tree was constructed using 13 protein-coding genes (PCGs).
Haojie Wang   +3 more
doaj   +2 more sources

Geographical variation of prementum size in Iberian Cordulegaster boltonii (Odonata: Cordulegastridae) populations [PDF]

open access: yesInternational Journal of Odonatology, 2022
Within wide geographical areas, Odonata populations can show biometric differences as a consequence of both biotic (e.g., predation, competition) and abiotic factors (mainly temperature).
Campos, Francisco   +5 more
core   +8 more sources

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

open access: yesBiodivers 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   +7 more
europepmc   +4 more sources

Lokální disperse páskovce Cordulegaster boltonii [PDF]

open access: yes, 2014
Provedli jsme pilotní studii lokální disperse páskovce kroužkovaného Cordulegaster boltonii (Odonata: Cordulegasteridae). Čeleď Cordulegasteridae se vyznačuje mnoha primitivními znaky a spíše omezenou distribuci (minimálně evropské druhy).
Hančíková, Barbora
core   +3 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]

open access: yes, 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).
Campos, F. (Francisco)   +2 more
core   +2 more sources

Taxonomic Revision of Eastern Part of Western Palaearctic Cordulegaster Using Molecular Phylogeny and Morphology, with the Description of Two New Species (Odonata: Anisoptera: Cordulegastridae)

open access: yesDiversity, 2021
Taxonomy of the genus Cordulegaster Leach in Brewster, 1815 in the Eastern part of the Western Palaearctic is poorly resolved. A two-step approach was applied: sequences of mitochondrial and nuclear DNA fragments were used to sort specimens; poorly known
Thomas Schneider   +7 more
doaj   +1 more source

The Combined Effects of Warming and Body Size on the Stability of Predator-Prey Interactions

open access: yesFrontiers in Ecology and Evolution, 2022
Environmental temperature and body size are two prominent drivers of predation. Despite the ample evidence of their independent effects, the combined impact of temperature and predator-prey body size ratio on the strength and stability of trophic ...
Pavel Kratina   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy