Stable isotopes reveal rail-associated behavior in a threatened carnivoreFootnote

† Contribution to the Special Issue “Stable Isotopes in Mammals”.

References

• McNab BK. Bioenergetics and the determination of home range size. Am Nat. 1963;97:133–140. doi: 10.1086/282264
   Web of Science ®Google Scholar
• Fenchel T. Intrinsic rate of natural increase: the relationship with body size. Oecologia. 1974;14:317–326. doi: 10.1007/BF00384576
   PubMed Web of Science ®Google Scholar
• Damuth J. Population density and body size in mammals. Nature. 1981;290:699–700. doi: 10.1038/290699a0
   Web of Science ®Google Scholar
• Cardillo M, Mace GM, Jones KE, Bielby J, Bininda-Emonds ORP, Sechrest W, Orme CDL, Purvis A. Multiple causes of high extinction risk in large mammal species. Science. 2005;309:1239–1241. doi: 10.1126/science.1116030
   PubMed Web of Science ®Google Scholar
• Woodroffe R. Edge effects and the extinction of populations inside protected areas. Science. 1998;280:2126–2128. doi: 10.1126/science.280.5372.2126
   PubMed Web of Science ®Google Scholar
• Treves A, Karanth KU. Human–carnivore conflict and perspectives on carnivore management worldwide. Conserv Biol. 2003;17:1491–1499. doi: 10.1111/j.1523-1739.2003.00059.x
   Web of Science ®Google Scholar
• Long RA, MacKay P, Ray J, Zielinski W, editors. Noninvasive survey methods for carnivores. Washington, DC: Island Press; 2008.
   Google Scholar
• Madden F. Creating coexistence between humans and wildlife: global perspectives on local efforts to address human–wildlife conflict. Hum Dimens Wildl. 2004;9:247–257. doi: 10.1080/10871200490505675
   Web of Science ®Google Scholar
• Clevenger AP, Waltho N. Performance indices to identify attributes of highway crossing structures facilitating movement of large mammals. Biol Conserv. 2005;121:453–464. doi: 10.1016/j.biocon.2004.04.025
   Web of Science ®Google Scholar
• Clevenger AP, Chruszcz B, Gunson KE. Highway mitigation fencing reduces wildlife–vehicle collisions. Wildl Soc Bull. 2001;29:646–653
   Web of Science ®Google Scholar
• Clevenger AP, Chruszcz B, Gunson KE. Spatial patterns and factors influencing small vertebrate fauna road-kill aggregations. Biol Conserv. 2003;109:15–26. doi: 10.1016/S0006-3207(02)00127-1
   Web of Science ®Google Scholar
• Dorsey BP. Factors affecting bear and ungulate mortalities along the Canadian Pacific railroad through Banff and Yoho national parks [thesis]. Bozeman (MT): Montana State University; 2011.
   Google Scholar
• Garshelis DL, Gibeau ML, Herrero S. Grizzly bear demographics in and around Banff National Park and Kananaskis country, Alberta. J Wildl Manage. 2005;69:277–297. doi: 10.2193/0022-541X(2005)069<0277:GBDIAA>2.0.CO;2
   Web of Science ®Google Scholar
• Bertch B, Gibeau ML. Grizzly bear monitoring in and around the Mountain National Parks: mortalities and bear/human encounters 1980–2009. Parks Canada Report; Lake Louise, Alberta; 2010. p. 1–28.
   Google Scholar
• Forman RT, Alexander LE. Roads and their major ecological effects. Annu Rev Ecol Syst. 1998;29:207–231. doi: 10.1146/annurev.ecolsys.29.1.207
   Google Scholar
• Seiler A. Ecological effects of roads: a review. Introductory research essay No. 9. Department of Conservation Biology, SLU Uppsala; 2001. p. 1–40.
   Google Scholar
• Donaldson A, Bennett AF, Victoria P. Ecological effects of roads: implications for the internal fragmentation of Australian parks and reserves. Melbourne, Vic: Parks Victoria Technical Series 12; 2004.
   Google Scholar
• Gibeau M, Heuer K. Effects of transportation corridors on large carnivores in the Bow River Valley, Alberta. In: Evink GL, Garrett P, Ziegler D, Berry J, editors. Trends in addressing transportation related wildlife mortality. FL-ER-58-96. Tallahassee: State of Florida Department of Transportation; 1996. p. 67–79.
   Google Scholar
• Wells P, Woods J, Bridgewater G, Morrison H. Wildlife mortalities on railways: monitoring methods and mitigation strategies. Unpublished Report: Parks Canada; Revelstoke, British Columbia; 1999. p. 85–88.
   Google Scholar
• Dorsey BP. Monitoring of train spilled grain on the Canadian Pacific rail line through Banff and Yoho National Parks (2008 to 2010). Report to Parks Canada; Lake Louise, Alberta; 2011. p. 1–16.
   Google Scholar
• Huber D, Kusak J, Frkovic A. Traffic kills of brown bears in Gorski kotar, Croatia. Ursus. 1998;10:167–171.
   Google Scholar
• Waller JS, Servheen C. Effects of transportation infrastructure on grizzly bears in northwestern Montana. J Wildl Manage. 2005;69:985–1000. doi: 10.2193/0022-541X(2005)069[0985:EOTIOG]2.0.CO;2
   Web of Science ®Google Scholar
• Mizukami R, Goto M, Izumiyama S, Hayashi H, Yoh M. Estimation of feeding history by measuring carbon and nitrogen stable isotope ratios in hair of Asiatic black bears. Ursus. 2005;16:93–101. doi: 10.2192/1537-6176(2005)016[0093:EOFHBM]2.0.CO;2
   Web of Science ®Google Scholar
• Newsome SD, Ralls K, Job CVH, Fogel ML, Cypher BL. Stable isotopes evaluate exploitation of anthropogenic foods by the endangered San Joaquin kit fox (Vulpes macrotis mutica). J Mammal. 2010;91:1313–1321. doi: 10.1644/09-MAMM-A-362.1
   Web of Science ®Google Scholar
• Hopkins JB III, Koch PL, Schwartz CC, Ferguson JM, Greenleaf SS, Kalinowski ST. Stable isotopes to detect food-conditioned bears and to evaluate human–bear management. J Wildl Manage. 2012;76:703–713. doi: 10.1002/jwmg.318
   Web of Science ®Google Scholar
• Mowat G, Heard D. Major components of grizzly bear diet across North America. Can J Zool. 2006;84:473–489. doi: 10.1139/z06-016
   Web of Science ®Google Scholar
• Koch PL. Isotopic study of the biology of modern and fossil vertebrates. Stable isotopes in ecology and environmental science. Boston, MA: Blackwell Publishing; 2007. p. 99–154.
   Google Scholar
• Chesson L, Podlesak D, Thompson A, Cerling T, Ehleringer J. Variation of hydrogen, carbon, nitrogen, and oxygen stable isotope ratios in an American diet: fast food meals. J Agric Food Chem. 2008;56:4084–4091. doi: 10.1021/jf0733618
   PubMed Web of Science ®Google Scholar
• Holland WD, Coen GM. Ecological land classification of Banff and Jasper National Parks. Volume 1: summary. Publication M-83–2. Edmonton: Alberta Institute of Pedology; 1983.
   Google Scholar
• Hamer D, Herrero S. Grizzly bear food and habitat in the front ranges of Banff National Park, Alberta. In: Zager P, editor. Bears: their biology and management. International Bear Association. 1987;7:199–213.
   Google Scholar
• Sawaya MA, Stetz JB, Clevenger AP, Gibeau ML, Kalinowski ST. Estimating grizzly and black bear population abundance and trend in Banff National Park using noninvasive genetic sampling. PLoS ONE. 2012;7:e34777. doi: 10.1371/journal.pone.0034777
   Google Scholar
• Sikes RS, Gannon WL. Guidelines of the American society of mammalogists for the use of wild mammals in research. J Mammal. 2011;92:235–253. doi: 10.1644/10-MAMM-F-355.1
   Web of Science ®Google Scholar
• Polischuk S, Hobson K, Ramsay M. Use of stable-carbon and -nitrogen isotopes to assess weaning and fasting in female polar bears and their cubs. Can J Zool. 2001;79:499–511. doi: 10.1139/z01-007
   Web of Science ®Google Scholar
• Fortin JK, Schwartz CC, Gunther KA, Teisberg JE, Haroldson MA, Evans MA, Robbins CT. Dietary adjustability of grizzly bears and American black bears in Yellowstone National Park. J Wildl Manage. 2012;77:270–281. doi: 10.1002/jwmg.483
   Web of Science ®Google Scholar
• Felicetti L, Schwartz C, Rye R, Haroldson M. Use of sulfur and nitrogen stable isotopes to determine the importance of whitebark pine nuts to Yellowstone grizzly bears. Can J Zool. 2003;81:763–770. doi: 10.1139/z03-054
   Web of Science ®Google Scholar
• Sawaya MA, Clevenger AP, Kalinowski ST. Demographic connectivity for Ursid populations at wildlife crossing structures in Banff National Park. Conserv Biol. 2013;27:721–730. doi: 10.1111/cobi.12075
   PubMed Web of Science ®Google Scholar
• Sawaya MA, Clevenger AP, Kalinowski ST. Genetic connectivity for two bear species at wildlife crossing structures in Banff National Park. Proc R Soc B–Biol Sci. 2014;281:20131705. doi: 10.1098/rspb.2013.1705
   PubMed Web of Science ®Google Scholar
• Bond AL, Hobson KA. Reporting stable-isotope ratios in ecology: recommended terminology, guidelines and best practices. Waterbirds. 2012;35:324–331. doi: 10.1675/063.035.0213
   Web of Science ®Google Scholar
• Mariotti A. Atmospheric nitrogen is a reliable standard for natural 15N abundance measurements. Nature. 1983;303:685–687. doi: 10.1038/303685a0
   Web of Science ®Google Scholar
• Coplen TB. Reporting of stable hydrogen, carbon, and oxygen isotopic abundances. Pure Appl Chem. 1994;66:273–273. doi: 10.1351/pac199466020273
   Web of Science ®Google Scholar
• Krouse HR, Coplen TB. Reporting of relative sulfur isotope-ratio data. Pure Appl Chem. 1997;69:293–295. doi: 10.1351/pac199769020293
   Web of Science ®Google Scholar
• Francey RJ, Allison CE, Etheridge DM, Trudinger CM, Enting IG, Leuenberger M, Langenfelds RL, Michel E, Steele LP. A 1000-year high precision record of δ13C in atmospheric CO2. Tellus B. 1999;51:170–193. doi: 10.1034/j.1600-0889.1999.t01-1-00005.x
   Google Scholar
• Chamberlain C, Waldbauer J, Fox-Dobbs K, Newsome S, Koch P, Smith D, Church M, Chamberlain S, Sorenson K, Risebrough R. Pleistocene to recent dietary shifts in California condors. Proc Natl Acad Sci USA. 2005;102:16707–16711. doi: 10.1073/pnas.0508529102
   PubMed Web of Science ®Google Scholar
• Hilderbrand G, Farley S, Robbins C, Hanley T, Titus K, Servheen C. Use of stable isotopes to determine diets of living and extinct bears. Can J Zool. 1996;74:2080–2088. doi: 10.1139/z96-236
   Web of Science ®Google Scholar
• Hobson K, McLellan B, Woods J. Using stable carbon (δ13C) and nitrogen (δ15N) isotopes to infer trophic relationships among black and grizzly bears in the upper Columbia River basin, British Columbia. Can J Zool. 2000;78:1332–1339. doi: 10.1139/cjz-78-8-1332
   Web of Science ®Google Scholar
• Case JW, Krouse HR. Variations in sulphur content and stable sulphur isotope composition of vegetation near a SO2 source at Fox Creek, Alberta, Canada. Oecologia. 1980;44:248–257. doi: 10.1007/BF00572687
   PubMed Web of Science ®Google Scholar
• Hopkins JB III, Koch PL, Ferguson JM, Kalinowski ST. The changing anthropogenic diets of American black bears over the past century in Yosemite National Park. Front Ecol Environ. 2014;12:107–114. doi: 10.1890/130276
   Web of Science ®Google Scholar
• Araujo MS, Bolnick DI, Machado G, Giaretta AA, Reis SF. Using δ13C stable isotopes to quantify individual-level diet variation. Oecologia. 2007;152:643–654. doi: 10.1007/s00442-007-0687-1
   PubMed Web of Science ®Google Scholar
• Layman C, Quattrochi J, Peyer C, Allgeier J, Suding K. Niche width collapse in a resilient top predator following ecosystem fragmentation. Ecol Lett. 2007;10:937–944. doi: 10.1111/j.1461-0248.2007.01087.x
   PubMed Web of Science ®Google Scholar
• Quevedo M, Svanbäck R, Eklöv P. Intrapopulation niche partitioning in a generalist predator limits food web connectivity. Ecology. 2009;90:2263–2274. doi: 10.1890/07-1580.1
   PubMed Web of Science ®Google Scholar
• Michener R, Lajtha K. Stable isotopes in ecology and environmental science. Malden, MA: Wiley; 2008.
   Google Scholar
• Coplen TB. Guidelines and recommended terms for expression of stable–isotope–ratio and gas–ratio measurement results. Rapid Commun Mass Spectrom. 2011;25:2538–2560.
   PubMed Web of Science ®Google Scholar