Articles and Explanations
Northeastern North America radio telemetry array provides insights into Blackpoll Warbler migratory movements
Their movements are most consistent with exploration hypotheses—that young birds develop a regional-scale map to aid in habitat selection, natal dispersal and subsequent migrations.
Remotely downloadable GPS tags reveal movements of Wild Turkeys
Findings suggest that space use and daily movements of male wild turkeys vary little from Eastern (M. g. silvestris) and Rio Grande (M. g. intermedia), but that roosting habits and movements associated with roosting differ strongly.
Geolocator reveals migratory and winter movements of a Prothonotary Warbler
A geolocator deployed on a Prothonotary Warbler reveals that it traveled an estimated 7950 km through seven countries.
Automated telemetry reveals age specific differences in flight duration and speed are driven by wind conditions in a migratory songbird
Automated telemetry via Nanotags and SRX receivers utilized to compare wind effects on flights of juvenile and adult Savannah Sparrows. Open Access article.
Miniaturized GPS Tags Identify Non-breeding Territories of a Small Breeding Migratory Songbird
First use of ~1 gram GPS Tags on a small passerine to identify precise locations over multiple months. Open Access article.
Using sutures to attach miniature tracking tags to small bats for multimonth movement and behavioral studies
Long term GPS & Geolocator attachment method for small bats described. Open Access article.
Geolocators on Golden-winged Warblers do not affect migratory ecology
The effect of M-Series Geolocators on 8-10 gram Golden-winged Warblers was studied. No effects on migratory ecology were found. Light stalks found to be unnecessary. Open Access article.
Minimizing marker mass and handling time when attaching radio-transmitters and geolocators to small songbirds
Fast, light weight and long term radio and geolocator attachment methods for small wood-warblers proved successful. Photos and a link to an attachment method video provided in this Open Access article.
Migratory movements of rhinoceros auklets in the northwestern Pacific: connecting seasonal productivities
Geolocators (MK15 aka MK3006) reveal migratory movements of Rhinoceros Auklets in northwest Pacific Ocean.
Day and Night Habitat Associations of Wintering Dunlin (Calidris alpina) within an Agriculture-Wetland Mosaic
Digitally coded Nanotags deployed on Dunlin to identify night and day locations.
Bats on a Budget: Torpor-Assisted Migration Saves Time and Energy
Temperature Sensing VHF Transmitters provide insights into torpor use during bat migration. Open Access article.
Proximity data-loggers increase the quantity and quality of social network data
A paper by Ryder et al. published online in August 2012 in Biology Letters, providing proof of concept for using proximity data-logging to quantify the frequency of social interactions, construct weighted networks and characterize variation in the social behaviour of a lek-breeding bird, the wire-tailed manakin, Pipra filicaud.
Landscape Movements of Migratory Birds and Bats Reveal an Expanded Scale of Stopover
An article by Taylor et al. published in November 2011 in PLoSONE6(11), showing that many apparent nocturnal departures from stopover sites are not a resumption of migration in the strictest sense, but are instead relocations that represent continued stopover at a broader spatial scale.
Lotek Archival Tags used to track the Lake Erie water snake
An article on the TerraDaily web site about a University of Cincinnati study that used Lotek Archival Tags on Lake Erie water snakes (Nerodia sipedon insularum), a "proof of concept that use of LATs in reptiles is a viable research method". Read the abstract here.
Comparative Performance of Current-generation Geolocating Archival Tags
A paper by Kurt M. Schaefer and Daniel W. Fuller evaluating the performance of the Lotek LTD 2310 archival tag.
Migratory shearwaters integrate
oceanic resources across the Pacific Ocean in an endless
A paper by Scott A. Shaffer et al. published in PNAS in August 2006, with data from LTD 2400 archival tags showing that sooty shearwaters "fly across the entire Pacific Ocean in a figure-eight pattern while traveling 64,037 ± 9,779 km roundtrip, the longest animal migration ever recorded electronically."
advance in geolocation by light
This paper describes a new threshold-free method of geolocation using sun light levels. The approach promises to offer many advantages over traditional threshold methods used today.
A paper on inferring the surface irradiance from measurements made at depth with Lotek LTD 2000 geolocation archival tags.
in a simple atmosphere
When doing measurements for geolocation, especially in ocean fish, there is good reason to confine one's attention to blue light. This is a paper on the advantages (to guide system design) of strong absorption and scattering of blue light in the atmosphere.
in the open ocean
A paper describing the use of LTD 2000 geolocation archival tags to determine daily latitude and longitude estimations based on observed sunlight levels.
choice for radio telemetry: the HF vs. VHF conundrum
An overview of the 7 individual components of a radio telemetry system, examining the role played by each in system optimization.
multi-mode tools bridge telemetry architectures
A 2007 ad and poster that describes how Lotek combines technologies.
fish movement over ranges of scale and scope
A 2007 flyer describing Lotek solutions for oceanic, coastal and fine scale monitoring.
A summary sheet of SRX 400 receiver configurations.
A summary checklist of application-specific factors to consider when using telemetry in a project.