Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland

The body length variation, sex ratio, ovarian development and natural enemies (parasitoids and entomopathogenic fungi) of Coccinella septempunctata were studied during two dormancy seasons in three hibernation sites in the Karkonosze mountains: the top of Mt. Śnieżka (1,600 m a.s.l.), the top of Mt....

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Main Author: Piotr CERYNGIER
Format: Article
Language:English
Published: Institute of Entomology, Biology Centre, Czech Academy of Science 2000-10-01
Series:European Journal of Entomology
Subjects:
Online Access:https://www.eje.cz/artkey/eje-200003-0004_Overwintering_of_Coccinella_septempunctata_Coleoptera_Coccinellidae_at_different_altitudes_in_the_Karkonosze.php
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author Piotr CERYNGIER
author_facet Piotr CERYNGIER
author_sort Piotr CERYNGIER
collection DOAJ
description The body length variation, sex ratio, ovarian development and natural enemies (parasitoids and entomopathogenic fungi) of Coccinella septempunctata were studied during two dormancy seasons in three hibernation sites in the Karkonosze mountains: the top of Mt. Śnieżka (1,600 m a.s.l.), the top of Mt. Szrenica (1,360 m a.s.l.) and Karpacz, the village at the foot of Mt. Śnieżka (800 m a.s.l.). The proportion of females and mean body length increased with the altitude of the hibernaculum. Post-diapause maturation of ovaries occurred earlier in spring in females from Karpacz than from the mountain tops. The rate of parasitization of C. septempunctata by its most common parasitoid, the braconid Dinocampus coccinellae, in both seasons exceeded 70% at Karpacz and was 14-28% in the mountain top hibernacula. In contrast, the incidence of fungal infection (mainly by Paecilomyces farinosus and Beauveria bassiana) was higher in beetles overwintering on the two mountain tops.
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spelling doaj.art-e1b817025ef6496f9d4849b706a7ad952022-12-21T20:33:42ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292000-10-0197332332810.14411/eje.2000.049eje-200003-0004Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW PolandPiotr CERYNGIER0Institute of Ecology, Polish Academy of Sciences, Dziekanów Leśny, 05-092 Łomianki, Poland; e-mail: ekolog@warman.com.plThe body length variation, sex ratio, ovarian development and natural enemies (parasitoids and entomopathogenic fungi) of Coccinella septempunctata were studied during two dormancy seasons in three hibernation sites in the Karkonosze mountains: the top of Mt. Śnieżka (1,600 m a.s.l.), the top of Mt. Szrenica (1,360 m a.s.l.) and Karpacz, the village at the foot of Mt. Śnieżka (800 m a.s.l.). The proportion of females and mean body length increased with the altitude of the hibernaculum. Post-diapause maturation of ovaries occurred earlier in spring in females from Karpacz than from the mountain tops. The rate of parasitization of C. septempunctata by its most common parasitoid, the braconid Dinocampus coccinellae, in both seasons exceeded 70% at Karpacz and was 14-28% in the mountain top hibernacula. In contrast, the incidence of fungal infection (mainly by Paecilomyces farinosus and Beauveria bassiana) was higher in beetles overwintering on the two mountain tops.https://www.eje.cz/artkey/eje-200003-0004_Overwintering_of_Coccinella_septempunctata_Coleoptera_Coccinellidae_at_different_altitudes_in_the_Karkonosze.phpcoccinella septempunctatahibernationbody sizesex ratioovarian developmentmortalityparasitoidsdinocampus coccinellaeentomopathogenic fungi
spellingShingle Piotr CERYNGIER
Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland
European Journal of Entomology
coccinella septempunctata
hibernation
body size
sex ratio
ovarian development
mortality
parasitoids
dinocampus coccinellae
entomopathogenic fungi
title Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland
title_full Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland
title_fullStr Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland
title_full_unstemmed Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland
title_short Overwintering of Coccinella septempunctata (Coleoptera: Coccinellidae) at different altitudes in the Karkonosze Mts, SW Poland
title_sort overwintering of coccinella septempunctata coleoptera coccinellidae at different altitudes in the karkonosze mts sw poland
topic coccinella septempunctata
hibernation
body size
sex ratio
ovarian development
mortality
parasitoids
dinocampus coccinellae
entomopathogenic fungi
url https://www.eje.cz/artkey/eje-200003-0004_Overwintering_of_Coccinella_septempunctata_Coleoptera_Coccinellidae_at_different_altitudes_in_the_Karkonosze.php
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