|
Article Excerpt
Hacking (nestlings translocated, raised by humans, and subsequently released to the wild) of Ospreys (Pandion haliaetus) has been successful at reintroducing this species to locations that were previously unoccupied (Poole 1989, Poole et al. 2002), including the upper midwestern United States (Martell et al. 2002). Satellite radiotelemetry has been used to monitor migration routes of Ospreys breeding in Europe (e.g., Hake et al. 2001) as well as in North America (e.g., Martell et al. 2001). These studies did not report on the lifespan or lifetime reproductive success of Ospreys. We also know little about migration routes or about changes in migration patterns of translocated, hack-released Ospreys. We monitored the migration routes of a hack-released Osprey over a 4-year period, ascertained its lifespan, and documented its lifetime reproductive success.
METHODS
Osprey nestlings (37 total, 5-7 annually, 1998-2003) were released at Big Muskego Lake (42.89[degrees] N, 88.11[degrees] W), Waukesha County, Wisconsin, through hacking (Hammer and Hatcher 1983, Schaadt and Rymon 1983). The Big Muskego Lake area was a suburban landscape and part of the greater metropolitan Milwaukee area. Big Muskego Lake covered 914.59 ha with a maximum depth of 1.2 m; Bass Bay (adjoining Big Muskego Lake) covered 40.47 ha with a maximum depth of 7.0 m. The Big Muskego Lake area consisted of the city of Muskego (human population -21,400, a human density of ~265/[km.sup.2]; U.S. Department of Commerce 2000) with suburban residential areas surrounded by agricultural land and natural habitat (e.g., marshes and grasslands). Osprey nestlings were banded with U.S. Geological Survey (USGS) lock-on aluminum leg bands anodized to a year-specific color. Solar-powered satellite radio transmitters (35 g Platform Transmitter Terminals [PITs]; Microwave Telemetry, Columbia, MD, USA) were installed on two Osprey nestlings in 2002 and on one nestling in 2003. Satellite radiotelemetry tracking data were obtained from Service Argos (now CLS America, Largo, MD, USA); accuracy of locations was [less than or equal to] 1 km. Distances and directions were calculated from Global Positioning System (GPS) locations....
|
|
More articles from The Wilson Journal of Ornithology
Chico, George, The Birds, and Me.(Book review), March 01, 2009
Albatross: Their World, Their Ways.(Book review), March 01, 2009
Cranes: A Natural History of a Bird in Crisis.(Book review), March 01, 2009
Raptor Research and Management Techniques.(Book review), March 01, 2009
Corridor ecology: the science and practice of linking landscapes for b..., March 01, 2009
Looking for additional articles?
Search our database of over 3 million articles.
Looking for more in-depth information on this industry?
Search our complete database of Industry & Market reports by text, subject, publication
name or publication date.
About Goliath
Whether you're looking for sales prospects, competitive information, company
analysis or best practices in managing your organization,
Goliath can help you meet your business needs.
Our extensive business information databases empower business
professionals with both the breadth and depth of credible,
authoritative information they need to support their business
goals. Whether it be strategic planning, sales prospecting,
company research or defining management best practices -
Goliath is your leading source for accurate information.
|
|
