Results 41 to 50 of about 93 (63)

Emergence behaviour of the red listed Balkan Goldenring (Cordulegaster heros Theischinger, 1979) in Hungarian upstreams: vegetation structure affects the last steps of the larvae

open access: closedJournal of Insect Conservation, 2015
In odonates, the emergence behaviour and finding suitable substrates for successful molting may influence the next generation and ultimately can determine the survival of the entire population. Understanding emergence behavior of endangered species and those granted special conservation status is particularly important.
Adrienne Ortmann-Ajkai   +2 more
exaly   +3 more sources

Life history and multiscale habitat preferences of the red-listed Balkan Goldenring, Cordulegaster heros Theischinger, 1979 (Insecta, Odonata), in South-Hungarian headwaters: does the species have mesohabitat-mediated microdistribution?

open access: closedHydrobiologia, 2015
Life cycle and microdistribution patterns of Cordulegaster heros, a charismatic species for nature conservation, are poorly known. Life history characteristics and multiscale habitat preferences of the larvae were followed for one year in monthly intervals by systematic samplings in eight headwaters, which resulted in data on 2562 individuals.
Balint Pernecker   +2 more
exaly   +3 more sources

Larval habitats and longitudinal distribution patterns of Cordulegaster heros theischinger and C. bidentata seŽlys in an Austrian forest stream (Anisoptera: Cordulegastridae)

Odonatologica, 2001
From May 1997 to April 1998 larvae were recorded at the Weidlingbach, a fourth order tributary of the Danube nr Vienna, at 12 sampling stations from source to mouth. From the 14 larval instars reported for the genus, 5 (F to F-4; based on head width) could be identified in both spp.; head widths of larvae were significantly larger than in.
Müller, Helmut, Waringer, Johann
openaire   +1 more source

Notes on Cordulegaster kalkmani in East Turkey (Odonata: Cordulegastridae)

Odonatologica, 2022
Thomas Schneider, Gert Jan Van Pelt
exaly  

Winners and Losers: Cordulegaster Species under the Pressure of Climate Change

Insects, 2023
Geert De Knijf   +2 more
exaly  

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