Minimizing marker mass and handling time when attaching radio-transmitters and geolocators to small songbirds

Streby, Henry M.; McAllister, Tara L.; Peterson, Sean M.; Kramer, Gunnar R.; Lehman, Justin A.; Andersen, David E.

doi:10.1650/condor-14-182.1

Cited by 67 publications

(64 citation statements)

References 21 publications

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“…We observed no evidence that stalks negatively affected Golden-winged Warblers, suggesting they were capable of carrying the larger, less streamlined units. However, we found no evidence that light stalks increased the precision of location estimates for geolocators attached using a figure-eight backpack harness, and suggest that the likelihood of feather shading can be negligible using the attachment method described by Streby et al (2015). Although neither geolocator configuration failed in our study, using stalkless units may also reduce the likelihood of unit failure due to stalk detachment (e.g., Rodríguez et al 2009, Renfrew et al 2013.…”

Section: Discussioncontrasting

confidence: 57%

“…We recorded body mass using a digital scale to the nearest 0.01 g and recorded all capture locations using handheld GPS units (GPSMAP 76 or eTrex Venture HC Global Positioning System; Garmin, Schaffhausen, Switzerland), averaging locations using 100 points to achieve ,5 m accuracy. At each site, we attached 20 geolocators (10 with a 5-mm light stalk and 10 stalkless; model ML6240; Biotrack, Wareham, UK) using the tracking-device attachment technique described in Streby et al (2015), a modification of the Rappole and Tipton (1991) leg-loop harness design. Geolocators with harnesses weighed 0.51 g (stalked; 5.7% of mean body mass; 5.0-6.2% of individual body mass) or 0.45 g (stalkless; 5.0% of mean body mass; 4.7-5.6% of individual body mass).…”

Section: Methodsmentioning

confidence: 99%

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Section: Discussioncontrasting

confidence: 57%

Section: Methodsmentioning

confidence: 99%

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2015

The Condor

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“…Once registered, tags are activated by the user and affixed to animals using glue, sutures, or a variety of harness designs (e.g., Rappole and Tipton 1991, Warnock and Warnock 1993, Hill et al 1999, Naef-Daenzer 2007, Streby et al 2015. Prior to deployment, additional information is collected about the animal (e.g., species, weight and other morphometric measurements, age, sex, presence of other identifying tags such as numbered bands) and submitted to the Motus database.…”

Section: Tags (Transmitting Device)mentioning

confidence: 99%

The Motus Wildlife Tracking System: a collaborative research network to enhance the understanding of wildlife movement

Taylor¹,

Crewe²,

Mackenzie³

et al. 2017

ACE

252

292

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ABSTRACT. We describe a new collaborative network, the Motus Wildlife Tracking System (Motus; https://motus.org), which is an international network of researchers using coordinated automated radio-telemetry arrays to study movements of small flying organisms including birds, bats, and insects, at local, regional, and hemispheric scales. Radio-telemetry has been a cornerstone of tracking studies for over 50 years, and because of current limitations of geographic positioning systems (GPS) and satellite transmitters, has remained the primary means to track movements of small animals with high temporal and spatial precision. Automated receivers, along with recent miniaturization and digital coding of tags, have further improved the utility of radio-telemetry by allowing many individuals to be tracked continuously and simultaneously across broad landscapes. Motus is novel among automated arrays in that collaborators employ a single radio frequency across receiving stations over a broad geographic scale, allowing individuals to be detected at sites maintained by others. Motus also coordinates, disseminates, and archives detections and associated metadata in a central repository. Combined with the ability to track many individuals simultaneously, Motus has expanded the scope and spatial scale of research questions that can be addressed using radio-telemetry from local to regional and even hemispheric scales. Since its inception in 2012, more than 9000 individuals of over 87 species of birds, bats, and insects have been tracked, resulting in more than 250 million detections. This rich and comprehensive dataset includes detections of individuals during all phases of the annual cycle (breeding, migration, and nonbreeding), and at a variety of spatial scales, resulting in novel insights into the movement behavior of small flying animals. The value of the Motus network will grow as spatial coverage of stations and number of partners and collaborators increases. With continued expansion and support, Motus can provide a framework for global collaboration, and a coordinated approach to solving some of the most complex problems in movement biology and ecology.Le Système de suivi de la faune Motus : un réseau de recherche collaboratif visant à mieux comprendre le déplacement des animaux RÉSUMÉ. Le Système de suivi de la faune Motus (Motus; https://motus.org), un nouveau réseau collaboratif de chercheurs internationaux, repose sur un ensemble coordonné de stations automatisées de radiotélémétrie pour étudier le déplacement de petits organismes volant, comme les oiseaux, les chauves-souris et les insectes, aux échelles locales et régionales, et à celle de l'hémisphère. Pierre angulaire pour les études de suivi depuis plus de 50 ans, la radiotélémétrie est encore le principal moyen de suivre le déplacement de petits animaux avec une grande précision temporelle et spatiale, en raison des limites que présentent les émetteurs basés sur le système de positionnement géographique (GPS) ou satellite. Des stations réceptrices automatisées,...

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“…, Streby et al . ). However, antenna length can have an impact on the detectable range, so this needs to be tested in the field to determine whether this solution is viable for use with grassland bird fledglings (Martin et al .…”

Section: Discussionmentioning

confidence: 97%

Radiotagged fledgling Savannah Sparrows Passerculus sandwichensis at risk of entanglement in vegetation

Vliet

Stutchbury

2018

Ibis

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Radiotelemetry is an essential method for studying the movements and survival of cryptic grassland bird fledglings. There is mixed evidence on the effects of wearing radio‐transmitters for passerines, with negative consequences probably under‐reported. In one season of a 2‐year study, we found 23% of radio‐transmitters and/or antennas deployed on fledgling Savannah Sparrows Passerculus sandwichensis had become entangled in vegetation, consequently harming the fledglings in two of seven cases. It is important for researchers to share their information on any negative consequences of attaching radio‐transmitters to songbirds in order to improve methods and to harm fewer individuals in future studies.

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Minimizing marker mass and handling time when attaching radio-transmitters and geolocators to small songbirds

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 67 publications

References 21 publications

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The Motus Wildlife Tracking System: a collaborative research network to enhance the understanding of wildlife movement

Radiotagged fledgling Savannah Sparrows Passerculus sandwichensis at risk of entanglement in vegetation

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