Linx individual<i>B132</i>from north-eastern Switzerland sighted in Trentino (northern Italy)

Brugnoli, Alessandro; Alberti, Marta; Rocca, Maria Cristina La

doi:10.3832/efor0545-0050269

Cited by 4 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These tags have an inbuilt GPS receiver and use the Navstar GPS to locate an animal. GPS locations can be downloaded via VHF and UHF and recently via other satellite systems such as Argos, Immarsat, Iridium and Globalstar [3,10]. GPS-GSM (Global System for Mobile Communications) technology is a step further.…”

Section: Introductionmentioning

confidence: 99%

Three decades of wildlife radio telemetry in India: a review

et al. 2014

View full text Add to dashboard Cite

From 1983, there have been three decades of the application and development of radio telemetry for wildlife studies in India. In this article, we review 82 studies from India, covering 47 species from four taxonomic classes. We examine and discuss the trends in the selection of study species, habitats and objectives of radio-telemetry studies and the functional success of radio collars and tags. A strong bias for study species and study region is observed and researchers generally tend not to look beyond the traditional research questions. Habitats that are difficult to access, such as the Trans-Himalayas, the Himalayas and north-eastern India, are overlooked. Most of the studies aimed to infer primary information only, such as home range, migration and movement patterns and habitat preference (53.7%, 47.6% and 28.1% studies, respectively). We expect these trends to change with time as the development of technology allows researchers to explore further. We investigated the tracking histories of 483 animals and the records of 496 radio collars or tags, but detailed information could be acquired for only 330 collars or tags. Of the collars, 49% malfunctioned before the end of their anticipated life due to a variety of reasons, early battery drainage being the prevalent cause. The performance of different technologies and collar manufacturers was also analysed but the small sample size was an issue for most of the cases. Argos-based collars and tags generally failed to record most of the locations precisely and failed to transmit them successfully. Issues with permissions and capturing animals for tagging, particular to India, are also discussed. A uniform and centralized system for granting permissions and guidelines for capturing and handling animals would be beneficial to future telemetry studies.

show abstract

Section: Introductionmentioning

confidence: 99%

Three decades of wildlife radio telemetry in India: a review

et al. 2014

View full text Add to dashboard Cite

show abstract

“…A wildlife radio telemetry system consists of a radio transmitter or other radio telemetry device attached to an animal and a receiver to pick up the signal of the transmitter (Cochran et al 1963, Swanson et al 1975, Brand et al 1975, Brugnoli et al 2008. Most often the device is attached using a collar, but other attachment methods such as harnesses, backpacks, or surgical implantation can also be used (Taylor et al 2004, Schorr et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…However, even with these limited capabilities, radio telemetry was a useful tool for studying animals. Once the transmitters were attached, rare or elusive animals could be readily located and individuals of a species could be identified and observed repeatedly (Cochran et al 1963, Swanson et al 1975, Brugnoli et al 2008. As technology advanced, transmitter size decreased thereby expanding the range of species that could be studied using this method.…”

Section: Introductionmentioning

confidence: 99%

“…Today transmitters are small enough that small mammals, birds, and even insects and other arthropods can be effectively tracked (Brand et al 1975, Sokolov 2011, Kays et al 2015. The range of these systems has also increased to the point that animals can be tracked many kilometers away (Meretsky et al 1992, Brugnoli et al 2008, Sokolov 2011. Species that travel long distances, such as the California condor, can now be tracked throughout their range (Meretsky et al 1992, Kays et al 2015.…”

Section: Introductionmentioning

confidence: 99%

“…Both VHF and GPS radio telemetry systems provide location data, and this coupled methodology is often used in studies to determine animal species range and movement (Brugnoli et al 2008, Kaczensky et al 2010, Sivakumar et al 2010. Both daily and long-term movement can be determined by setting the interval appropriately to estimate home range and habitat use (Meretsky et al 1992Brugnoli et al 2008, Larroque et al 2015. If multiple individuals are tagged in an area, home range overlap and interactions can also be studied (Brugnoli et al 2008, Schorr et al 2011, Long et al 2014.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Untitled

Supplemental Information 1: PRISMA Checklist

View full text Add to dashboard Cite

Radio telemetry is a common tool to monitor animals in many ecosystems. Radio telemetry, or radio tracking, typically uses a tag or collar with a radio transmitter attached to an animal that is monitored by researchers with a receiver. This technique is used for research in many disciplines such as wildlife ecology or conservation biology. Within desert ecosystems, this approach has been used since the 1960s in many different research capacities. Many desert species exist at low density and can range widely within a region due to scarce resources, which can make radio telemetry a useful method to use in these environments. Here, we examined the peer-reviewed literature to assess how radio telemetry is used in deserts. Using the Web of Science with additional search validation on Google Scholar to formally summarize this research, we found 97 studies that fit our criteria. Most primary studies used radio telemetry to examine individual behavior and/or habitat use. The majority of published studies were done in the United States. The most common classes of animal studied were mammals (29.9 % large mammals and 25.8 % small mammals). Most species studied were classified as 'least concern' for risk status. Vhf radio telemetry devices predominated the technology selected (80.4 %) whilst GPS devices were used in 19.6 % of studies. Radio telemetry devices are an effective tool to survey individual animals and animal populations in harsh desert environments. However, future research can be improved using these tools to improve reproducibility encourage data reuse and comparison between studies. We encourage authors using radio telemetry to publish their data and include details of their study area and tracking methods to accomplish these goals.

show abstract

Satellite telemetry of large mammals in Mongolia: what expectations should we have for collar function?

Kaczensky

Ito²,

Walzer³

2011

Wildl. Biol. Pract

View full text Add to dashboard Cite

The rapid pace of the development of satellite wildlife tracking tools has left little time for thorough testing of new equipment and identifying possible sources of technical failures. In the Gobi and Eastern Steppe region of Mongolia we deployed 98 satellite collars, collecting animal locations using the Doppler based Argos (n = 29) or the global positioning system (GPS; n = 69), on 45 Asiatic wild asses (Equus hemionus), 34 Mongolian gazelles (Procapra gutturosa), 15 Przewalski's horses (E. ferus przewalskii), eight wild Bactrian camels (Camelus ferus), and two wolves (Canis lupus). Although, we collected valuable data from little-known species in a remote environment, of 98 collars deployed, only 29 worked as good as or better than expected whereas 69 were subject to technical problems. The majority of problems had to do with a reduced performance of the Argos component (n = 12), with both the Argos and the GPS components (n = 1), or with the Argos component in combination with another unknown problem (n = 12). Further problems were caused by human error during manufacturing or deployment (n = 10), software bugs (n = 7), mechanical failures (n = 5), poor GPS performance (n = 1) and premature failures for unknown reasons (3 ≤ n ≤ 21). The better performance of Argos only collars on Mongolian gazelles and of collars not attached to an animal suggest that a large body mass reduces the Argos signal below a critical threshold. Consequently, we presently would not recommend the use of collars depending on an Argos unit for data collection or transfer on large bodied ungulates in central Asia. Although, several premature failures may have been caused by animals being poached, our failure rate remains high and indicates that managers and researchers need to be aware that there is a high risk of equipment failure when applying newly emerging satellite tracking technology. This implies logistic and financial uncertainties which may be difficult to explain to the scientific community, the public, management- and funding agencies alike. We recommend the development of a web-based platform where users and producers of telemetry products can quickly post and exchange their experiences.

show abstract

Linx individualB132from north-eastern Switzerland sighted in Trentino (northern Italy)

Cited by 4 publications

References 1 publication

Three decades of wildlife radio telemetry in India: a review

Three decades of wildlife radio telemetry in India: a review

Untitled

Satellite telemetry of large mammals in Mongolia: what expectations should we have for collar function?

Contact Info

Product

Resources

About