6 Works

Data from: Landscape Context Mediates Avian Habitat Choice in Tropical Forest Restoration

J. Leighton Reid, Chase D. Mendenhall, J. Abel Rosales, Rakan A. Zahawi & Karen D. Holl
Birds both promote and prosper from forest restoration. The ecosystem functions birds perform can increase the pace of forest regeneration and, correspondingly, increase the available habitat for birds and other forest-dependent species. The aim of this study was to learn how tropical forest restoration treatments interact with landscape tree cover to affect the structure and composition of a diverse bird assemblage. We sampled bird communities over two years in 13 restoration sites and two old-growth...

Surrounding forest cover dataset 2005

David Morales, R. J. Cole, Karen D. Holl & R. A. Zahawi
Forest cover within 100 and 500 m radii from the center of each experimental plot was hand digitized from ortho-rectified 2005 aerial photographs and comprehensively ground checked. Forest cover spans a range from <1% to 66% within a 100-m radius surrounding the plots and from 9% to 89% in a 500-m radius.

Proximity and abundance of mother trees affects recruitment patterns in a long-term tropical forest restoration study

Rakan Zahawi, Leland Werden, Miriam San-José, Juan Abel Rosales, Jeffry Flores & Karen Holl
Remnant trees and forest fragments in agricultural landscapes can be important sources of propagules to facilitate forest recovery. However, many studies simply quantify forest cover in the surrounding landscape as a percentage, with little attention given to species composition, and subsequently fail to detect an effect on recruitment patterns. We assessed the relative importance of the spatial distribution and life-history traits of 77 tree species on recruitment patterns at a landscape scale in a well-replicated...

Data from: Factors explaining variability in woody above-ground biomass accumulation in restored tropical forest

Karen D. Holl & Rakan A. Zahawi
Secondary forests comprise an increasing area of the tropics and play an important role in global carbon cycling. We compare above-ground biomass accumulation of both planted and naturally regenerating trees, as well as C in the top soil layer, in three restoration treatments replicated at 14, six to eight year old restoration sites in southern Costa Rica. Restoration strategies include: control (no planting), planting tree islands, and conventional, mixed-species tree plantations. We evaluate the importance...

Bird Frugivore Abundance data from: Applied nucleation facilitates tropical forest recovery

Karen D. Holl, J. Leighton Reid, Rebecca J. Cole, Federico Oviedo‐Brenes, Juan A. Rosales & Rakan A. Zahawi
Applied nucleation, mostly based upon planting tree islands, has been proposed as a cost‐effective strategy to meet ambitious global forest and landscape restoration targets. We review results from a 15‐year study, replicated at 15 sites in southern Costa Rica, that compares applied nucleation to natural regeneration and mixed‐species tree plantations as strategies to restore tropical forest. We have collected data on planted tree survival and growth, woody vegetation recruitment and structure, seed rain, litterfall, epiphytes,...

Data from: Seed dispersal limitations shift over time in tropical forest restoration

J. Leighton Reid, Karen D. Holl & Rakan A. Zahawi
Past studies have shown that tropical forest regeneration on degraded farmlands is initially limited by lack of seed dispersal, but few studies have tracked changes in abundance and composition of seed rain past the first few years after land abandonment. We measured seed rain for 12 months in 10 6–9‐year‐old restoration sites and five mature, reference forests in southern Costa Rica in order to learn (1) if seed rain limitation persists past the first few...

Registration Year

  • 2021
    6

Resource Types

  • Dataset
    6

Affiliations

  • Organization for Tropical Studies
    6
  • University of California, Santa Cruz
    4
  • Stanford University
    1
  • Oregon State University
    1
  • University of Hawaii at Manoa
    1
  • Organization For Tropical Studies
    1
  • Virginia Tech
    1
  • University of Costa Rica
    1