Research overview: ear-tag and implant biologgers for small felids

Small cats present a hardware problem: their necks may be too slender or their lives too cryptic for conventional collars, so researchers explore alternatives. This overview considers ear-mounted tags, subcutaneous implants, and lightweight loggers for species such as wildcats, ocelots, and the smaller Asian and African felids. Miniaturization constrains battery and antenna size, limiting fix frequency and transmission, which is why small-felid movement data remain comparatively sparse. The overview discusses welfare considerations, retention challenges, and the trade-off between device capability and animal size. Advances in microelectronics steadily expand which species can be tracked. Filling this gap matters because much of felid diversity lies among small, poorly studied cats whose movement ecology is largely unknown.