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October 31, 2014     The Catalina Islander
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October 31, 2014
 

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Conservancy Times ionl G PS devices help bison movement patterns and hab- itat use. scientists study Through the satellite link, biol- breeding behavior ogists are able to systematically locate the bison, record breeding behavior and collect fecal sam- BY CALVIN DUNCAN AND pies. JULIE KING Biologists utilize spotting scopes to identify individual bison If you have made your way into in the field and rifle scopes mount- the Island's interior recently, you ed on tripods to mark the location may have noticed that a few of of a recently voided fecal sample the bison have been outfitted with from a safe distance away. some newbling. Fecal samples are collect- In May, five bison females, or ed weekly from as many cows cows, were fitted with satellite as possible and then shipped to linked global positioning system the San Diego Zoo Center for (GPS) collars. Conservation Research for proges- These collars are some of the terone analysis. most sophisticated wildlife track- The ultimate goal of this ing collars available, research is to determine if the They have been programmed application of the non-hormonal to collect location data every three contraceptive vaccine porcine hours and transfer the data to sat- zona pellucida (PZP) has altered ellites every 12 hours, the timing or frequency of ovula- Conservancy biologists can tion in treated cows. then access the data and locate To maintain infertility, PZP each individual in the field, must be administered annually; The equipment is part of an a treated female is not sterilized extensive study associated with and ovulation and copulation with the Conservancy's bison contra- bulls continues as normal. ception program, which was initi- Of the 60 bison cows on ated in 2009. Catalina, 15 are no longer receiv- In conjunction with California ing annual doses of the vaccine, State University, Fullerton, the and several are expected to pro- Conservancy has expanded the duce calves within the next two program to include additional years. i search that will support bison Unlike domestic cattle that are management on Catalina and pro- capable of ovulating several times vide information to other manag- annually, bison ovulate season- ers considering the use of contra- ally, generally in the summer. ceptives in managing wildlife in They have only been docu- other areas of the globe, mented to ovulate twice per sea- Location data collected by the son. This is an evolutionary adap- collars will be used to analyze tation that ensures that calves are Founded in 1913 by Ernest Windle Publisher Vince Bodiford vince@thecatalinaislander.com General Manager Jon Remy advertising@thecatalinaislander.com Interim Editor Travis Perkins editor@thecatalinaislander.com Office Assistant Kristy Throndson office@t hecatalinaisla nder.com Graphic Designer Christy Smith MuiUmedia Director Franco Te francote@communitymediaus.com 635 CRESCENT AVENUE SUITE A AVALON, CA 90704 (310) 510-0500 FAX: (310) 510-2882 Postmaster: Send address changes t6 The Catalina Islander P.O. Box 428, Avalon, CA 90704 DEADLINES Calendar: Noon Monday I News: 5 p.m. Monday I Display Advertising: 2 p.m. Tuesday I Classified Advertising: Noon Tuesday I Legal/Public Notices: 5 p.m. Monday SUBSCRIPTIONS Send to manager@cinews.us One Year Subscription: Catalina .............................................. $39 Mainland ............................................ $48 Subscriptions via First Class Mail are available for $gO/year A Publication of CommunityMedia Corporation. CATALINA ISLANDER (USPS 093-140) Acceptance under 39C, F.R. 3464 periodicals postage paid at Avalon, CA 90704 and other additional offices. Adjudication Decree No. 377598. Date of Adjudication: Oct. 4, 1934 Exact Name of Newspaper as shown in the Petition for Adjudication: The Catalina Islander, Published weekly st 101 Marilla Avenue, #6 Avalon, CA 90704. The entire contents of The Catalina Islander are copyrighted by The Catalina Islander. NO part may be repro- duced in any fashion without written consent of the publisher. This publication is printed almost entirely on recycled paper. Contents Copyright 2014 and Title Registered, Catalina Islander, Inc., All Rights Reserved. PROUD MEMBER OF THE PUBLISHERS ASSOCIATION CALIFORNIA NEWSPAPER Five Catalina Island bison are wearing GPS collars to help biologists track them. Photo by Julie King. not born during the blistery cold of Alterations in the timing and/or but the overall seasonality likely winter and females are not tasked frequency of ovulation in response remains the same. with nursing when resources are to the use of PZP would not be a A full year of monitoring is unavailable, significant issue on Catalina. now underway to answer these Bulls are able to detect ovula- But if it were to be used in questions and many more. tion in females and will remain in other areas, such as Yellowstone If you find yourself in the inte- close proximity or "tend" females National Park, bulls focused on rior and are lucky enough to spot that are actively ovulating, tending ovulating females may not a herd of bison, keep an eye out During this time bulls often be adequately equipped to survive for the Conservancy's biologists. forgo feeding, resulting in con- the long harsh winter. They will be the ones with all of siderable weight loss and may At this time Conservancy biol- the tripods and scopes. also sustain serious injuries while ogists believe that the breeding battling with rival bulls for the season may have been lengthened CalvinDuncanisaConservancy opportunity to breed, in response to the use of PZP biologist and California State University, Fullerton graduate student. Julie King is the Conservancy' s director of conservation and wild- life management. For more infor- mation, please visit catalinacon- servancy, org. Toast to its glorious past and those who have made the Wrigley Martini a legend before you. Try the original exclusively at the A valon Grille. RESE RVATIONSA T OPENTABLE.COM . 310.510.7494 SANTA CATALINA~P ISLAND COMPANY 877.778.8322 VisitCatalinalsland.com SEAP@RT BISTRO Join Chef Gregory Wenger Six Nights A Week 5pra-gpm Wednesdays) Thanksgiving Dinner Now accepting reservations, serving 2pm-Tpm $23.95 Weeknight Football Special! 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