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Calibration of remotely collected acceleration data with behavioral observations of roe deer (Capreolus capreolus L.)

100%

Heurich M., Traube M., Stache A., Lottker P.

Acta Theriologica

2012

tom 57

nr 3

Long-term, remote monitoring of animals under natural conditions is essential for obtaining information on animal activity. Advances in biotelemetry have led to the construction of low-power accelerometers placed on Global Positioning System (GPS) collars. Such acceleration data from roe deer have not yet been classified to the various behavioral categories. Here, we determined the threshold values of such data for different behavioral categories. We equipped captive roe deer with Global Positioning System–Global System for Mobile Communications/dual-axis acceleration sensor neck collars and simultaneously measured their movement and observed their behavior. The difference between feeding and slow locomotion was significant on the x- but not the y-axis, and both of these two behavioral categories differed significantly from resting and fast locomotion. Specific thresholds for the behavioral categories—resting, feeding, and slow and fast locomotion—were established by recursive partitioning. We compared the behavior determined by these threshold values with observed behavior and found that 92% of the behavioral categories were correctly assigned. A comparison of our results with those of earlier studies showed that thresholds derived for one species cannot be directly applied to another species. We provide recommendations for the further development of acceleration sensors based on the results obtained in this study.

Distribution and status of lynx in the border region between Czech Republic, Germany and Austria

63%

Wolfl M., Bufka L., Cerveny J., Koubek P., Heurich M., Habel H., Huber T., Poost W.

Acta Theriologica

2001

tom 46

nr 2

This paper summarizes available information concerning the presence of the Eurasian lynx Lynx lynx Linneaus, 1758 in the Sumava Mountains and adjacent areas along the common border of Czech Republic, Germany and Austria. Our data give an overview of the lynx population occupying the border region between the three countries from 1990 to 1999. We estimated population size using radiotracking data. From 1990 to 1998, population increased from under 20 to nearly 70 resident animals. During this time, reproduction increased as well, with a maximum of 55 kittens observed in the rearing period of 1998 to 1999. Mortality data indicated that illegal hunting was widespread. Our paper discusses possible links with other lynx populations and describes the legal status of lynx in the three different countries. Current management approaches are outlined and steps toward a long-term conservation plan for the population are proposed.

Ograniczanie wyników

2 Acta Theriologica

2 Heurich M.

1 Bufka L.

1 Cerveny J.

1 Habel H.

1 Huber T.

1 Koubek P.

1 Lottker P.

1 Poost W.

1 Stache A.

1 Traube M.

1 Wolfl M.

1 2012

1 2001

Wyniki wyszukiwania

Calibration of remotely collected acceleration data with behavioral observations of roe deer (Capreolus capreolus L.)

Distribution and status of lynx in the border region between Czech Republic, Germany and Austria