Aaron Teets

• PhD
• Ecologist at BLM - The Bureau of Land Management

Eddy covariance methodologies have greatly improved our understanding of the forest carbon cycle, including controls over year-to-year variability in productivity (measured as net ecosystem productivity, NEP, where NEP is the difference between the mass of carbon fixed by photosynthesis and that lost by ecosystem respiration). However, establishing...

A range of environmental factors regulate tree growth; however, climate is generally thought to most strongly influence year-to-year variability in growth. Numerous dendrochronological (tree-ring) studies have identified climate factors that influence year-to-year variability in growth for given tree species and location. However, traditional dendr...

Individual tree growth and mortality drive forest stand dynamics and are universally important metrics of tree success. Studying factors that affect growth and mortality is particularly challenging in mixed-species, uneven-aged systems due to their defining heterogeneity and strong temporal and spatial variability. The goal of this study was to det...

Although northern white-cedar (Thuja occidentalis; henceforth cedar) is thought to have few insect pests, arborvitae leafminers (primarily Argyresthia thuiella) have been known to cause leaf necrosis. Yet, historical evidence for leafminer outbreaks is limited. We combined leafminer larval surveys conducted between 1950 and 1992 with tree-ring anal...

In deciduous forests, spring leaf development and fall leaf senescence regulate the timing and duration of photosynthesis and transpiration. Being able to model these dates is therefore critical to accurately representing ecosystem processes in biogeochemical models. Despite this, there has been relatively little effort to improve internal phenolog...

The timing of spring leaf development and fall senescence determine how long deciduous forests actively exchange carbon and water with the atmosphere. Being able to model these dates is therefore critical to accurately representing ecosystem processes in biogeochemical models. Despite this, there has been relatively little effort to improve interna...

Linking biometric measurements of stand‐level biomass growth to tower‐based measurements of carbon uptake—gross primary productivity and net ecosystem productivity—has been the focus of numerous ecosystem‐level studies aimed to better understand the factors regulating carbon allocation to slow‐turnover wood biomass pools. However, few of these stud...

A long‐standing goal of ecology has been to understand the cycling of carbon in forests. This has taken on new urgency with the need to address a rapidly changing climate. Forests serve as long‐term stores for atmospheric CO2, but their continued ability to take up new carbon is dependent on future changes in climate and other factors such as age....

Carbon (C) storage and accumulation in forests is of growing importance as climate change focuses our attention on rising greenhouse gas emissions. In 2012, we measured total ecosystem C pools (including live vegetation, dead wood, and soils) in two unmanaged, mixed-species stands in central Maine, USA. The stands are adjacent to one another and se...

Worldwide, forest plants and fungi that are harvested for their nontimber products are critical for the health of the ecosystems and the well-being of people who benefit from the harvest. This document provides an analysis of the volumes and values of nontimber forest products in the United States.

Report is the results of the monitoring performed to support the Yacumama forest carbon project.

Forest Carbon project description with the goal to protect and conserve the tropical lowland floodplain forest on Yacumama for long-term carbon sequestration, avoidance of GHG emissions from deforestation and degradation, and conservation of biodiversity. Yacumama is a privately held, former eco-tourist lodge and forestland located in the Amazon Ba...

This study examined climate-tree growth relationships of a G2 globally rare Pinus rigida (Pitch Pine) barren located at the species' northern range limit in Acadia National Park, ME. Our tree-ring chronologies spanned the period 1804-2014 CE and included 50 dated tree-ring series from 33 trees. We found significant (P < 0.05) positive correlations...

Forest productivity is known to vary in response to annual fluctuations in climate. By assessing how closely forest productivity tracks climate on an annual basis, we can gauge climate sensitivity for a given location. However, our understanding of forest productivity is limited, in part, by the complex methods needed to measure annual stand-level...

Background/Question/Methods Military training from an ecological perspective represents a unique set of periodic landscape scale disturbances. There are two types of training related disturbance that occur on military lands, physical disturbance from vehicles maneuvering across the landscape and fire. Military vehicle maneuvers often produce inten...