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Global tracking devices negatively affect the survival rate of sage-grouses

sage grouse

Source: sciencedaily.com

A new study in The Condor: Ornithological Applications finds that currently-available global positioning system (GPS) tracking devices, previously thought to not alter animal survival rates, can decrease greater sage-grouse survival.

The researchers monitored sage-grouse survival at 14 sites throughout California and Nevada. Between 2012 and 2017, VHF transmitters were attached to 821 female and 52 male sage-grouse. GPS devices were attached to 234 female and 125 male sage-grouse.

Researchers here combined the measured survival of the tracked sage-grouse throughout the duration of the study with models to estimate independent random effects and correlating fatalities, to determine differences in the survival rate for sage-grouse fitted with GPS devices versus those fitted with VHF transmitters. MORE

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