Cara A. Rockwell, Manuel R. Guariguata,
Mary Menton, Eriks Arroyo Quispe, Julia
Quaedvlieg, Eleanor Warren-Thomas
M. Simola
MFM integrates economic,
social, institutional and
biophysical dimensions
related to utilization of a
variety of...
Problem: Limited ecological evidence for
sustainable integration of NTFP and timber
harvests
Examples:
Plant species compo...
Chavez et al. 2012
Large (up to 50 m), long-
lived emergent
Relies on cross-pollination
(esp. via Euglossinae bees)
Fruit maturation requires...
Brazil nut and timber harvest
integration in Madre de Dios
Peruvian Forestry and Wildlife Law of
2000 established Brazil n...
Does timber harvesting influence fruit and nut
production, based on a series of covariates?
Field Sites
Mix of closed canopy terra
firme and open canopy
bamboo-dominated forests
Evidence of informal logging
dating ...
M. Simola
M. Simola
H. Kohagura Arrunátegui
Estimate Standard
Error
t
Value
Pr(>|t|)
(Intercept) 354.2 173.0 2.1 0.04*
Circumference 8.7 60.7 0.1 0.89
Circumference2 ...
Regression of distance to cut stump on fruit
count
How do we measure logging impacts on
individual tree production?
Independent variables that will be
included in future ana...
Expand the current study to include more
Inter-Oceanic Highway concessions as well
as concessions in Tambopata National
Re...
USAID (United States Agency for International Development)
Participating concession owners: Pedro L. Amao Gallegos, Pablo
...
Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for mult...
Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for mult...
Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for mult...
Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for mult...
Upcoming SlideShare
Loading in …5
×

Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for multiple-use forest management in Western Amazonia

1,044 views

Published on

C.A. Rockwell, M. R. Guariguata, M. Menton, E. Arroyo Quispe, J. Quaedvlieg, E. Warren-Thomas. 2013. Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for multiple-use forest management in Western Amazonia. Presentation delivered at the 50th Anniversary Meeting of the Association for Tropical Biology and Conservation & Organisation for Tropical Studies, San Jose, Costa Rica, 23-27 June 2013.

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,044
On SlideShare
0
From Embeds
0
Number of Embeds
10
Actions
Shares
0
Downloads
18
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Assessing logging impacts on fruit and nut production in the Brazil nut tree (Bertholletia excelsa): Implications for multiple-use forest management in Western Amazonia

  1. 1. Cara A. Rockwell, Manuel R. Guariguata, Mary Menton, Eriks Arroyo Quispe, Julia Quaedvlieg, Eleanor Warren-Thomas
  2. 2. M. Simola MFM integrates economic, social, institutional and biophysical dimensions related to utilization of a variety of goods and services Herrero-Jáuregui et al. (in review)
  3. 3. Problem: Limited ecological evidence for sustainable integration of NTFP and timber harvests Examples: Plant species composition/abundance (Salick et al. 1995) Harvestable epiphyte biomass (Romero 1999) Damage to B. excelsa adults (Guariguata et al. 2009) Economic value of Carapa guianensis timber and seed harvests (Klimas et al. 2012) B. excelsa regeneration (Soriano et al. 2012)
  4. 4. Chavez et al. 2012
  5. 5. Large (up to 50 m), long- lived emergent Relies on cross-pollination (esp. via Euglossinae bees) Fruit maturation requires 14 months Individual tree production highly variable MDD densities of productive adults estimated to be 1 stem ha-1 Zuidema and Boot 2002, Wadt et al. 2005 M. Simola M. Simola
  6. 6. Brazil nut and timber harvest integration in Madre de Dios Peruvian Forestry and Wildlife Law of 2000 established Brazil nut concessions Concessions comprise ~10 % of 2004 resolution allowed for timber harvest up to 5 m3 ha-1 Currently more wood coming out of Brazil nut concessions than those designated for timber (Cossio-Solano et al. 2011) M. Simola
  7. 7. Does timber harvesting influence fruit and nut production, based on a series of covariates?
  8. 8. Field Sites Mix of closed canopy terra firme and open canopy bamboo-dominated forests Evidence of informal logging dating to 1970s-80s Project currently working w/ 5 concessions (~4000Ha) 2012 production data for 300+ trees; 2013 production data for ~ 700 trees
  9. 9. M. Simola
  10. 10. M. Simola
  11. 11. H. Kohagura Arrunátegui
  12. 12. Estimate Standard Error t Value Pr(>|t|) (Intercept) 354.2 173.0 2.1 0.04* Circumference 8.7 60.7 0.1 0.89 Circumference2 4.8 9.1 0.5 0.60 Log Distance -56.3 23.9 -2.4 0.02* Presence Liana -49.2 30.4 -1.6 0.11 Presence Nail 50.0 35.0 1.4 0.16
  13. 13. Regression of distance to cut stump on fruit count
  14. 14. How do we measure logging impacts on individual tree production? Independent variables that will be included in future analyses: soil type, crown diameter and position, location, nearest neighbor, liana load, local basal area, rainfall data, local logging intensity, logging gap age, logging gap size, physical damage
  15. 15. Expand the current study to include more Inter-Oceanic Highway concessions as well as concessions in Tambopata National Reserve Expand the current focus on productive B. excelsa adults to also include advanced regeneration
  16. 16. USAID (United States Agency for International Development) Participating concession owners: Pedro L. Amao Gallegos, Pablo Alegre Usca, Felicitas Ramirez Surco, Bertilda Arias de Simplicio, Guillermo Calderon Ramirez UNAMAD (Ing. Mishari Garcia Roca, Carlos N. Ancco Mamani, Olivia Revilla Vera, Lorenzo Ccoycca Leon, Betxy Villarroel Panduro, Hideki Kohagura Arrunátegui, Soledad Montesinos Ferro, Arikson Nemecio Cruz Rafael, Delma Dominguez Salcedo, Merly Arancivia Quispe, Luchina Atau Huaman, Erika Suarez Ccalluchi, Jhony Alexander Grifa Juriuchi, Edwin Jurado Rojas, Frank Valera Tito, Juan José Yucra Salas, Roger Quenta Hancco, Saúl Arocutipa Coaquira) SPDA (Sociedad Peruana de Derecho Ambiental) ACCA (Asociación para la Conservación de la Cuenca Amazónica) FEPROCAMD (Federación de Productores de Castaña de Madre de Díos)

×