Carbon storage and flux estimates for the two national forests in Alaska are provided using inventory data from permanent plots established in 1995–2003 and remeasured in 2004–2010. Estimates of change are reported separately for growth, sapling recruitment, harvest, mortality, snag recruitment,…
Keywords: biomass, carbon cycle, carbon sequestration, phytomass, rain forest
Source: Gen. Tech. Rep. PNW-GTR-889. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 44 p.
Climate change is altering growing conditions in the temperate rain forest region that extends from northern California to the Gulf of Alaska. Longer, warmer growing seasons are generally increasing the overall potential for forest growth in the region. However, species differ in their ability to…
Keywords: rain forest, biomass, Alaska, climate change, Tara Barrett
Source: Science Findings 149. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p.
We developed an automated tree crown analysis algorithm using 1-m panchromatic IKONOS satellite images to examine forest canopy structure in the Brazilian Amazon. The algorithm was calibrated on the landscape level with tree geometry and forest stand data at the Fazenda Cauaxi (3.75◦ S, 48.37◦ W)…
Keywords: Amazonia, automated algorithm, biomass, crown delineation, crown width, rain forest, tropical forest
Source: BIOTROPICA 40(2) :141–150
Tropical stream food webs are thought to be based primarily on terrestrial resources (leaf litter) in small forested headwater streams and algal resources in larger, wider streams. In tropical island streams, the dominant consumers are often omnivorous freshwater shrimps that consume algae,…
Keywords: Caribbean, Decapoda, Greater Antilles, lotic, prawn, Puerto Rico, rain forest, RCC, river, species interactions
Source: BIOTROPICA 35(1): 84–93
Food abundance, time of year, and stage of the reproductive cycle are important factors affecting home range size in birds. Between 23 January and 28 November 2003, we determined the home range and core area sizes for 10 radio-tagged male Pearly-eyed Thrashers (Margarops fuscatus; Mimidae) within…
Keywords: Home range, breeding period, post-breeding period, fruit abundance, rain forest, reproductive stages, Pearly-eyed Thrasher, Margarops fuscatus
Source: Ornitologia Neotropical. 21: 409-423
Leaf mass per area (LMA) is a trait of central importance to plant physiology and ecosystem function, but LMA patterns in the upper canopies of humid tropical forests have proved elusive due to tall species and high diversity. We collected top-of-canopy leaf samples from 2873 individuals in 57…
Keywords: canopy chemistry, imaging spectroscopy, leaf mass per area, LMA, leaf traits, phylogenetics, rain forest, remote sensing, specific leaf area, SLA, taxonomy
Source: Ecological Applications. 21(1): 85-98.
Ecosystems are changing in complex and unpredictable ways, and analysis of these changes is facilitated by coordinated, long-term research. Meeting diverse societal needs requires an understanding of what populations and communities will be dominant in 20, 50, and 100 yr. This paper is a product of…
Keywords: coral reefs, experimental manipulations, grasslands, northern hardwood forest, rain forest, Special Feature, Forecasting Earth’s Ecosystems with Long-term Ecological Research, temperature, urban forest
Source: Ecosphere. 12(5): e03434