Arthropod fauna on grassland–heathland associations under different grazing managements with domestic ruminants
| Autor: | Rafael Celaya, Rocío Rosa García, Francisco J. Ocharan, Urcesino García, Koldo Osoro |
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| Rok vydání: | 2010 |
| Předmět: |
Fauna
Biodiversity Ulex Poaceae General Biochemistry Genetics and Molecular Biology Grassland Shrubland Species Specificity Ulex gallii Grazing Lolium Medicago Animals Biomass Animal Husbandry Arthropods Herbivore geography Sheep geography.geographical_feature_category Ecology General Immunology and Microbiology biology Goats Feeding Behavior General Medicine biology.organism_classification Linyphiidae Cattle General Agricultural and Biological Sciences |
| Zdroj: | Comptes Rendus Biologies. 333:226-234 |
| ISSN: | 1631-0691 |
| DOI: | 10.1016/j.crvi.2009.12.008 |
| Popis: | The effects of two grazer species (cattle or sheep) and two flock types (single or mixed with goats) on vegetation and arthropod fauna were studied in a factorial design on eight plots which comprised two thirds of mechanically cleared heathland and one third of improved ryegrass-clover grassland. After six grazing seasons, the shrubland areas were dominated by gorse (Ulex gallii) in all treatments. Herbaceous cover was higher under mixed than under single grazing, and under sheep than under cattle grazing. Higher captures of Opiliones, Julida, Lithobiomorpha, Microcoryphia and Carabidae were recorded in shrublands than in grasslands, while the reverse was observed for Linyphiidae, Lycosidae and Hemiptera. Within shrublands, fauna responded to the flock type but not to the grazer species. More arthropod groups favoured the patchier areas with higher herbaceous biomass generated by mixed herds with goats. Within grasslands, species-specific responses to the grazer species were observed. Mixed grazing schemes which include goats within partially improved heathlands could contribute to maintain higher biodiversity levels in these marginal areas. |
| Databáze: | OpenAIRE |
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