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The life cycles of ...
The life cycles of Boyeria irene and Onychogomphus uncatus (Odonata: Aeshnidae, Gomphidae) in western Spain : A biometric study
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- Velasco-Villanueva, Tatiana (författare)
- Departamento de Ciencias Experimentales, Universidad Europea Miguel de Cervantes, Calle Padre Julio Chevalier, 2, Valladolid, 47012, Spain; Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Sevilla, 41013, Spain
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- Campos, Francisco (författare)
- Departamento de Ciencias Experimentales, Universidad Europea Miguel de Cervantes, Calle Padre Julio Chevalier, 2, Valladolid, 47012, Spain
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- Norling, Ulf (författare)
- Malmö universitet,Institutionen för Urbana Studier (US)
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- Ferreras-Romero, Manuel (författare)
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Sevilla, 41013, Spain
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(creator_code:org_t)
- 2018-12-12
- 2018
- Engelska.
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Ingår i: European Journal of Entomology. - : Akademie Ved Ceske Republiky. - 1210-5759 .- 1802-8829. ; 115, s. 684-696
- Relaterad länk:
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https://doi.org/10.1...
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https://mau.diva-por... (primary) (Raw object)
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http://www.eje.cz/do...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Co-occurrence of species with similar trophic requirements, such as odonates, seems to depend both on them occupying different microhabitats and differing in their life-cycles. The life cycles of the dragonflies Boyeria irene and Onychogomphus uncatus were studied in two consecutive years, mainly by systematic sampling of larvae in seven permanent head courses that constitute the upper basin of the River Agueda, western Spain, in the central part of the ranges of these two species. The size ranges of the last five larval stadia of both species were established based on biometric data. The eggs of the egg-overwintering aeshnid hatched in late spring and early summer and for the gomphid hatching peaked in middle-late summer. Both species showed mixed voltinism with "cohort splitting". B. irene had a dominant three-year development (partivoltinism), with some developing in two years (semivoltinism). O. uncatus requires four, sometimes three years to complete development (all partivoltine). B. irene larvae spent the winter before emergence in the last three, maybe four stadia, as a "summer species". O. uncatus mainly behaved as a "spring species", most larvae spending the last winter in the final larval stadium.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Odonata
- Aeshnidae
- Gomphidae
- dragonfly
- Boyeria irene
- Onychogomphus uncatus
- life cycle
- permanent streams
- larval sizes
- seasonal regulation
- voltinism
- Spain
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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