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 goods and services Herrero-Jáuregui et al. (in review)

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)

Chavez et al. 2012

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

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

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 to 1970s-80s Project currently working w/

5 concessions (~4000Ha) 2012 production data for

300+ trees; 2013 production data for ~ 700 trees

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 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

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 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

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

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)