Fersiynau electronig

Dogfennau

Dangosydd eitem ddigidol (DOI)

  • Cara A. Rockwell
    Center for International Forestry Research (CIFOR), Lima
  • Manuel R. Guariguata
    Center for International Forestry Research (CIFOR), Lima
  • Mary Menton
    Center for International Forestry Research (CIFOR), Lima
  • Eriks Arroyo Quispe
    Center for International Forestry Research (CIFOR), Lima
  • Julia Quaedvlieg
  • Eleanor Warren-Thomas
    University of East AngliaCenter for International Forestry Research (CIFOR), Lima
  • Harol Fernandez Silva
    Center for International Forestry Research (CIFOR), Lima
  • Edwin Eduardo Jurado Rojas
    Center for International Forestry Research (CIFOR), Lima
  • Jose Andres Hideki Kohagura Arrunategui
    Center for International Forestry Research (CIFOR), Lima
  • Luis Alberto Meza Vega
    Center for International Forestry Research (CIFOR), Lima
  • Roger Quenta Hancco
    Center for International Forestry Research (CIFOR), Lima
  • Olivia Revilla Vera
    Center for International Forestry Research (CIFOR), Lima
  • Jonatan Frank Valera Tito
    Center for International Forestry Research (CIFOR), Lima
  • Betxy Tabita Villarroel Panduro
    Center for International Forestry Research (CIFOR), Lima
  • Juan Jose Yucra Salas
    Center for International Forestry Research (CIFOR), Lima
To date, the spatial distribution pattern and density of Brazil nut trees in logged forest stands is unclear across the Amazon basin. We asked the following questions: (1) What are the densities and spatial distributions of Brazil nut juveniles (10 ≤ dbh < 40 cm) and adults (≥ 40 cm dbh) in three selectively logged Brazil nut concessions (1413 ha sampled) in Madre de Dios, Peru; (2) What is the spatial relationship between adults and juveniles (10 ≤ dbh < 30 cm); and (3) What is the spatial relationship between juveniles (10 ≤ dbh <30 cm) and cut stumps (≥ 10 y)? Spatial analyses were conducted using statistics derived from Ripley's K function. Juveniles were aggregated in all three concessions. Results for adult populations rejected the null hypothesis of a random distribution among trees ≥ 40 cm dbh. We did not find an attraction between juveniles and cut-stump locations, nor between adults and juveniles. The strong peaks of aggregation for juveniles and adult Brazil nuts in this study occurred at long distances (300–900 m), suggesting multiple tree canopy gaps as drivers of spatial distribution patterns, either via natural or anthropogenic sources. Our data contribute to a more thorough understanding of Brazil nut population structure in disturbed forests in south-western Amazonia.

Allweddeiriau

Iaith wreiddiolSaesneg
Tudalennau (o-i)114-127
CyfnodolynJournal of Tropical Ecology
Cyfrol33
Rhif y cyfnodolyn2
Dyddiad ar-lein cynnar9 Ion 2017
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1 Maw 2017

Cyfanswm lawlrlwytho

Nid oes data ar gael
Gweld graff cysylltiadau