In the context of sustainable forest management new requirements related to the content, scale, timeliness and cost efficiency of information are being imposed on timber suppliers and environmental conservationists. Traditionally, forest inventories have been based on cost-intensive and time consuming field inventories. Thus new requirements and financial constraints in public and private secto...

One and a half centuries after Darwin visited Chiloe Island, what he described as "…an island covered by one great forest…" has lost two-thirds of its forested areas. At this biodiversity hotspot, forest surface is becoming increasingly fragmented due to unregulated logging, clearing for pastures and replacement by exotic tree plantations. Decrease in patch size, increased isolation and "edge e...

We report the first occurrence of family Triuridaceae in Atlantic Forest Paraná state, Brazil. found Triuris hyalina Miers a nature reserve and present description, taxonomic ecological comments, distribution data, images. It is small, mycoheterotrophic plant species. it an area dense ombrophilous forest municipality Piraquara, eastern Paraná. Our new record represents sta...

Estimation of avian biodiversity is a cornerstone measure ecosystem condition. Surveys conducted using autonomous recorders are often more efficient at estimating diversity than traditional point-count surveys. However, there limited research into the optimal temporal resolution for sampling—the trade-off between number samples and sample duration when sampling survey window with fixed effort—d...

Aim The aim of this study was to document changes in forest composition, structure and distribution across Massachusetts, USA, from the time of European settlement (seventeenth century) to the present, and to investigate environmental and historical influences on regional patterns of variation. Location The study area encompasses the State of Massachusetts (69.9–73.5 E, 41.3– 42.9 N), a 21,000-...

Abstract Accurate forest density estimates based on United States Public Land Surveys have long been questioned because of doubts about randomness both the surveyors' selection witness trees and underlying tree dispersion. This study analyzes surveyor sampling in six Midwestern states mid‐1800s. It develops universal methods for identification, quantification, correction bias, then calculation ...