Arthropod fauna on grassland-heathland associations under different grazing managements with domestic ruminants.

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.

Rosa García R ，Ocharan FJ ，García U ，Osoro K ，Celaya R ... -  《-》

How do sheep affect plant communities and arthropod populations in temperate grasslands?

Scohier A ，Dumont B 《-》

Grazing behaviour and performance of lactating suckler cows, ewes and goats on partially improved heathlands.

Celaya R ，Benavides R ，García U ，Ferreira LM ，Ferre I ，Martínez A ，Ortega-Mora LM ，Osoro K ... -  《Animal》

Low intensity, mixed livestock grazing improves the breeding abundance of a common insectivorous passerine.

Evans DM ，Redpath SM ，Evans SA ，Elston DA ，Gardner CJ ，Dennis P ，Pakeman RJ ... -  《-》

The effect of mixed or sequential grazing of cattle and sheep on the faecal egg counts and growth rates of weaned lambs when treated with anthelmintics.

Marley CL ，Fraser MD ，Davies DA ，Rees ME ，Vale JE ，Forbes AB ... -  《VETERINARY PARASITOLOGY》