On inferring population trends of mobile waterbirds from aerial transect surveys in variable environments

Current Trends in Research on Mobile Phones in Language Learning

This study aimed at examining the major mobile wireless technologies, that is,mobile phones and the possibilities associated with them, currently in use in theeducational domains, with an emphasis on language teaching and learning practices.Accordingly, some of the most typical studies using different functions of mobilephones such as e-mail, multimedia capabilities, Wireless Application Protoc...

Line transect methods for plant surveys.

Interest in surveys for monitoring plant abundance is increasing, due in part to the need to quantify the rate of loss of biodiversity. Line transect sampling offers an efficient way to monitor many species. However, the method does not work well in some circumstances, for example on small survey plots, when the plant species has a strongly aggregated distribution, or when plants that are on th...

Parametric models for line transect surveys

With data from line transeot surveys, the pattern of distances at which animals are detected provides the information for estimating the area which the observer effectively surveys. This paper suggests a parametric structure for the problem wherein this area is characterized by an effective half-width parameter which appears as a scale parameter in the distributions of detection distances. Seve...

Point Transect Surveys for Songbirds: Robust Methodologies

Variation in population trends and spatial dynamics of waterbirds in a boreal lake complex

Breeding waterbird populations were studied in a boreal lake system between 1986 and 2012 to find out whether there are differences in temporal trends and spatial variation between waterfowl, grebe, diver and gull species. The study was based on censusing all waterbirds in a lake complex of 45.75 km of water area and 290 km of shoreline length (scale 1:20,000), and the results were compared wit...