Deforestation alters phytotelm habitat availability and mosquito production in the Peruvian Amazon

Stephen P. Yanoviak, J. E. Ramírez Paredes, L. Philip Lounibos, Scott C. Weaver

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

We quantified the effects of deforestation, and subsequent cultivation and forest regeneration, on the abundance and composition of mosquito larval habitats, specifically phytotelmata (plant-held waters), in the western Amazon basin. Recently deforested sites were characterized by increased phytotelm density (1.6 phytotelmata/m2) and greater relative abundance of fallen-plant-part phytotelmata (76%) compared to intact forests (0.9 phytotelmata/m2 and 25% fallen plant parts). As a result, the total volume of colonizable phytotelm water was significantly larger in new clearings. Subsequent cultivation of cleared land with mixed crops including pineapple and plantain had similar consequences: phytotelm density (2.2 units/m2) was significantly larger in plantations than in forests due to greater relative abundance of water-filled plant axils (71% vs. 39% in forest). Such axils are the preferred larval habitats for Wyeomyia spp. mosquitoes, which showed a similarly significant increase in production in plantations (0.25 larvae/m 2) vs. forests (0.04 larvae/m2). Likewise, Limatus spp. mosquitoes were an order of magnitude more abundant in altered landscapes (especially in recently deforested and cultivated areas) than in mature forest, due to increased abundance of fallen-plant-part phytotelmata, in which they are typically the most common colonists. Because they are potential vectors of pathogens in a region of high endemic and emergent virus activity, increases in local abundance of Limatus spp. and Wyeomyia spp. due to large-scale deforestation and agriculture may influence rates of disease transmission.

Original languageEnglish (US)
Pages (from-to)1854-1864
Number of pages11
JournalEcological Applications
Volume16
Issue number5
DOIs
StatePublished - Oct 2006

Keywords

  • Amazon
  • Arthropods
  • Deforestation
  • Disease vector
  • Diversity
  • Larval mosquito habitat
  • Limatus spp.
  • Mosquitoes
  • Peru
  • Phytotelm
  • Tropical forest
  • Wyeomyia spp.

ASJC Scopus subject areas

  • Ecology

Fingerprint

Dive into the research topics of 'Deforestation alters phytotelm habitat availability and mosquito production in the Peruvian Amazon'. Together they form a unique fingerprint.

Cite this