Lake Sabrina, Sierra Nevada range, California, 1993

My first paid job in conservation, monitoring populations of threatened plant species in the Inyo National Forest.

Bilsa Biological Station, coastal Ecuador, 1994

Fern day at Bilsa — we brought back more than 50 different species and laid them out on the porch before dinner. Endless pressing that night.

Madre de Dios River, Peru, 1998

Los Amigos watershed, Peru, 1998

Camp on a beach not far from the future site of the Los Amigos Biological Station

Yasuní National Park, Ecuador, 1998

Huaorani Ethnic Reserve, Ecuador, 1998

Pressing plants by candlelight in a Huaorani schoolhouse

Huaorani Ethnic Reserve, Ecuador, 1998

Huaorani Ethnic Reserve, Ecuador, 1999

My friend Edmundo Pérez with our truck in a Huaorani village, getting ready for another day in the tree plots

Rapid inventory of the Serranías Cofan, Ecuador, 2001

Rapid inventory of the Serranías Cofan, Ecuador, 2001

Alto Purús River, Peru, 2002

Napo River expedition, Peru, 2002

Rapid inventory of the Yavarí watershed, Peru, 2002

Los Amigos Biological Station, Peru, 2004

Los Amigos Biological Station, Peru, 2007

Amazon Conservation Association ad, 2007

Los Amigos Biological Station, Peru, 2007

Los Amigos Biological Station, Peru, 2008

Rapid inventory of the Yaguas watershed, Peru, 2010

Rapid inventory of the Yaguas watershed, Peru, 2010

Rapid inventory of the Yaguas watershed, Peru, 2010