News News

Parrots choose old-growth forest

Forest regeneration may reduce the current loss of species due to tropical deforestation, but little is known about the extent and inter-specific variability of this effect. Authors compared the probability with which nine parrot species use old-growth and secondary forests in a 400 km2 Amazonian landscape, while considering two types of habitat use: perching and flyover use. Perching use, when individuals stop at a sampling site; flyover merely implies that parrots fly through, above the canopy at a site. 155 sampling sites were established and sampled repeatedly using autonomous audio recorders. All but one species fly over both habitats with the same probability, while seven out of nine show a higher probability of perching in old growth than in secondary forest. Interspecific variation in response to habitat change was not explained by variation in body mass or relative brain size. After three decades of forest regeneration in the study area, there are still measurable differences in habitat use, with a broad tendency for parrots to favor old growth over secondary forest. informacion[at]ebd.csic.es Figueira et al (2015) Autonomous sound monitoring shows higher use of Amazon old growth than secondary forest by parrots. Biol Conserv 184: 27-35 doi:10.1016/j.biocon.2014.12.020

 


http://www.sciencedirect.com/science/article/pii/S0006320714004996
Average (0 Votes)

Latest News Latest News

Impact of fisheries on sea turtles

The bycatch of sea turtles by industrial fisheries is receiving an increasing attention in recent years due to the high impact it causes on these endangered species. This issue was evaluated in...

The structure of waterbird seed dispersal networks is not mediated by functional traits

Plants and their dispersers form interaction networks whose structure has important implications for the persistence and stability of the community. Frugivory is vital for the dispersal of many...

Mosquitoes are attracted to Plasmodium-infected birds

Parasites can manipulate their hosts to increase their transmission success. Avian malaria parasites (Plasmodium) are thought to alter the cues such as host odour, used by host-seeking mosquitoes....

High potential of Argentine ant to harm amphibian juveniles

Invasive species have major impacts on biodiversity and are one of the primary causes of amphibian decline and extinction. Unlike other top ant invaders that negatively affect larger fauna via...