Individual study: Private forest reserves can aid in preserving the community of medium and large-sized vertebrates in the Amazon arc of deforestation
Negrões N., Revilla E., Fonseca C., Soares A.M.V.M., Jácomo A.T.A. & Silveira L. (2011) Private forest reserves can aid in preserving the community of medium and large-sized vertebrates in the Amazon arc of deforestation. Biodiversity and Conservation, 20, 505-518
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Legally protect habitat for mammals
A site comparison study in 2005–2007 in two sites mostly composed of secondary forest in Pará, Brazil (Negrões et al. 2011) found that 13 of 16 species were less abundant in a protected area than in a nearby unprotected area. Results were not tested for statistical significance. Populations of 13 of 16 species were lower in the protected area (0–4.5 photos/100 camera-trap nights) than in a nearby unprotected area (0.1–5.0 photos/100 camera-trap nights). Three of the 16 species were more abundant in the protected area (0.2–4.5 photos/100 camera-trap nights) than in the unprotected area (0.2–4.1 photos/100 camera-trap nights). Vegetation in the protected area was largely secondary rainforest and, in the unprotected area, 65% was secondary forest and 35% was pasture. Five camera-trap surveys were carried out between July 2005 and November 2007 at 10–22 locations in a protected area and 10–22 locations in a nearby unprotected area. Cameras were placed 50–70 cm above ground level at each location. Each camera took one photograph every 5 minutes. Relative abundance of species was estimated by dividing the number of photos of a species by the number of trap-nights.
(Summarised by Phil Martin)