In an era of biodiversity crisis, arthropods have great potential to inform conservation assessment and test hypotheses about community assembly. This is because their relatively narrow geographic distributions and high diversity offer high-resolution data on landscape-scale patterns of biodiversity. However, a major impediment to the more widespread application of arthropod data to a range of ...

Recent analyses of radial growth rates in southern commercial forests have shown that current rates are lower than past rates when compared diameter class by diameter class. These results have been interpreted as an indication that the growth rate of the forest is declining. In this paper, growth rates of forest populations in Alabama are studied. Basal area growth (a function of both radius an...

This paper studies the within-model-year pricing, production, and inventory management of new automobiles. Using new monthly data on U.S. transaction prices, we document that, for the typical vehicle, prices fall over the model year at a 9.0 percent annual rate. Concurrently, both sales and inventories are hump shaped. To explain these time series, we formulate an industry model for new automob...

Emission inventories are an essential tool for evaluating, managing, and regulating air pollution. Refinements and innovations in instruments that measure air pollutants, models that calculate emissions, and techniques for data management and uncertainty assessment are needed to enhance emission inventories. This workshop provided recommendations for improving emission factors, improving emissi...

Urban areas are continuously expanding today, extending their influence on an increasingly large proportion of woods and trees located in or nearby urban and urbanizing areas, the so-called urban forests. Although these forests have the potential for significantly improving the quality the urban environment and the well-being of the urban population, data to quantify the extent and characterist...

We find that raw materials inventories in the manufacturing sector in the 1970s and 1980s and 1990s were two to five times higher in developing countries than in the United States, despite the fact than in most developing countries real interest rates are at least twice as high. Given the high costs of capital in most developing countries, the impact of those high inventory levels on the cost o...

BACKGROUNDS, MATERIAL AND METHODS To meet the demands of sustainable forest management and international commitments, European nations have designed a variety of forest-monitoring systems for specific needs. While the majority of countries are committed to independent, single-purpose inventorying, a minority of countries have merged their single-purpose forest inventory systems into integrated ...

Functional Phonology, which makes a principled distinction between articulatory and perceptual representations, features, and constraints, can describe as well as explain the symmetries as well as the gaps in inventories of vowels and consonants. Symmetries are the language-specific results of general human limitations on the acquisition of perceptual categorization and motor skills. Gaps are t...

Despite the widespread use of RIASEC interest inventories, little is known about whether these inventories actually measure same core constructs and provide similar career recommendations to individuals. This study investigates construct validity among four major inventories—the Self-Directed Search (SDS), O*NET Interest Profiler (IP), ACT Inventory (UNIACT), Strong (SII). Results showed that s...

Common vowel inventories of languages tend to be better dispersed in the space of possible vowels than less common or unattested inventories. The present research explored the hypothesis that functional factors cause this preference. Connectionist models were trained on different inventories of spoken vowels, taken from a naturalistic corpus. The first experiment showed that networks trained on...