Producción secundaria de artrópodos estimada mediante trampas de emergencia en dos bosques del Montseny (Barcelona)
Part of the secondary production was evaluated in a montane holm-oak wood and a beechwood in the Montseny mountains. The production estimates of emergent adults were necessarily underestimates, since the mortality of immature forms was not taken into account. Most part of the emergent adults were Di...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1989 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | español |
| OAI Identifier: | oai:ddd.uab.cat:38950 |
| Acceso en línea: | https://ddd.uab.cat/record/38950 |
| Access Level: | acceso abierto |
| Palabra clave: | Arthropods Beech forest Emergence traps Holm-oak forest Mediterranean forest ecosystems Secondary production Soil fauna |
| Sumario: | Part of the secondary production was evaluated in a montane holm-oak wood and a beechwood in the Montseny mountains. The production estimates of emergent adults were necessarily underestimates, since the mortality of immature forms was not taken into account. Most part of the emergent adults were Diptera (60 % and 72 % of total emerged individuals in the holm-oak and beech forests, respectively) and Hymenoptera (8 %) in both forests. Secondary production between May 1981 and June 1982 was estimated as 11,2,10 6 individuals/ha/year and 3.7 kg/ha/year in the holm-oak wood, and as 5.8 10 6 individuals/ha/year and 7.2 kg/ha/year in the beechwood. The most abundant families of Diptera were Cecidomyiidae, Sciaridae, Mycetophilidae and Chironomidae in the holm-oak forest; and Cedidomyiidae, Sciaridae and Empididae in the beech forest. Most of te biomass emerges during the summer under beech, and during the spring and the end of summer under holm-oak. It was estimated that the arthropods captured in emergence traps consume 288 kglhalyear of vegetable matter in the holm-oak site and 489 kg/ha[year in the beech sile (286 kgthalyear if Bibionidae are excluded). This consumption rate amounts to 5.5 % of the annual litterfall contribution in the holm-oak forest and between 6.6 % and 11.3 % in the beech forest. |
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