Comparison of Woodland Caribou Calving Areas Determined by Movement Patterns Across Northern Ontario
Adult female survival and calf recruitment influence population dynamics, but there is limited information on calving and neonatal mortality of boreal woodland caribou (Rangifer tarandus caribou; caribou) in Ontario, Canada. We identified calf parturition sites and 5-week neonatal mortality using a...
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| Veröffentlicht in: | The Journal of wildlife management 2021-01, Vol.85 (1), p.169-182 |
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| creator | WALKER, PHILIP D. RODGERS, ARTHUR R. SHUTER, JENNIFER L. THOMPSON, IAN D. FRYXELL, JOHN M. COOK, JOHN G. COOK, RACHEL C. MERRILL, EVEYLN H. |
| description | Adult female survival and calf recruitment influence population dynamics, but there is limited information on calving and neonatal mortality of boreal woodland caribou (Rangifer tarandus caribou; caribou) in Ontario, Canada. We identified calf parturition sites and 5-week neonatal mortality using a movement-based approach across 3 northern Ontario study regions (Pickle Lake, Nakina, and Cochrane) that vary in their capacity to support caribou populations. In comparing 22 caribou-years of video-collar footage during 2010–2013 to predictions of the movement-based approach, we found live parturition events were 100% correctly classified, date of parturition was within 1.08±0.28 (x̄ ± SE) days, and mortality events up to 5 weeks postpartum were 88% correctly classified. Across study regions, 87% of 186 caribou were pregnant and 76% of 107 caribou-years indicated birth events with median parturition dates a week later in Cochrane (23 May) than in Pickle Lake (17 May) and Nakina (16 May). Based on selection ratios of caribou-years with calves-at-heel (n=80), caribou consistently selected for lowlands and closed-canopied forests and mostly against early-seral stands ( |
| doi_str_mv | 10.1002/jwmg.21961 |
| format | Article |
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We identified calf parturition sites and 5-week neonatal mortality using a movement-based approach across 3 northern Ontario study regions (Pickle Lake, Nakina, and Cochrane) that vary in their capacity to support caribou populations. In comparing 22 caribou-years of video-collar footage during 2010–2013 to predictions of the movement-based approach, we found live parturition events were 100% correctly classified, date of parturition was within 1.08±0.28 (x̄ ± SE) days, and mortality events up to 5 weeks postpartum were 88% correctly classified. Across study regions, 87% of 186 caribou were pregnant and 76% of 107 caribou-years indicated birth events with median parturition dates a week later in Cochrane (23 May) than in Pickle Lake (17 May) and Nakina (16 May). Based on selection ratios of caribou-years with calves-at-heel (n=80), caribou consistently selected for lowlands and closed-canopied forests and mostly against early-seral stands (<20 yrs old) and areas near linear features during the neonatal and the post-neonatal period (up to 35 days postpartum). Based on the video footage and movement models, 30% of 81 caribou-years that indicated live births also showed females lost their calf within the first 5 weeks postpartum, with higher risk of neonatal mortality associated with increased use of lowlands and greater postpartum movement rates. This study provides informative metrics of caribou reproduction across northern Ontario that will contribute to future population modeling and identifies important landscape features to be considered in future industrial development and land use planning for caribou conservation.</description><identifier>ISSN: 0022-541X</identifier><identifier>EISSN: 1937-2817</identifier><identifier>DOI: 10.1002/jwmg.21961</identifier><language>eng</language><publisher>Bethesda: Wiley</publisher><subject>animal movement ; Calves ; calving ; Caribou ; Conservation organizations ; Females ; Habitat Relations ; Industrial development ; Lakes ; Land use ; Land use management ; Land use planning ; Lowlands ; Mortality ; neonatal mortality ; Neonates ; Parturition ; Population dynamics ; Postpartum ; predation risk ; Pregnancy ; Rangifer tarandus caribou ; video‐collars ; Wildlife ; Wildlife conservation ; woodland caribou ; Woodlands</subject><ispartof>The Journal of wildlife management, 2021-01, Vol.85 (1), p.169-182</ispartof><rights>2020 The Wildlife Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3231-5695d31c238587c62dbe3b90d08be3760b10c8fbf6b255de295556156415d45e3</citedby><cites>FETCH-LOGICAL-c3231-5695d31c238587c62dbe3b90d08be3760b10c8fbf6b255de295556156415d45e3</cites><orcidid>0000-0003-0083-5019</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/27011907$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/27011907$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,1416,27922,27923,45572,45573,58015,58248</link.rule.ids></links><search><creatorcontrib>WALKER, PHILIP D.</creatorcontrib><creatorcontrib>RODGERS, ARTHUR R.</creatorcontrib><creatorcontrib>SHUTER, JENNIFER L.</creatorcontrib><creatorcontrib>THOMPSON, IAN D.</creatorcontrib><creatorcontrib>FRYXELL, JOHN M.</creatorcontrib><creatorcontrib>COOK, JOHN G.</creatorcontrib><creatorcontrib>COOK, RACHEL C.</creatorcontrib><creatorcontrib>MERRILL, EVEYLN H.</creatorcontrib><title>Comparison of Woodland Caribou Calving Areas Determined by Movement Patterns Across Northern Ontario</title><title>The Journal of wildlife management</title><description>Adult female survival and calf recruitment influence population dynamics, but there is limited information on calving and neonatal mortality of boreal woodland caribou (Rangifer tarandus caribou; caribou) in Ontario, Canada. We identified calf parturition sites and 5-week neonatal mortality using a movement-based approach across 3 northern Ontario study regions (Pickle Lake, Nakina, and Cochrane) that vary in their capacity to support caribou populations. In comparing 22 caribou-years of video-collar footage during 2010–2013 to predictions of the movement-based approach, we found live parturition events were 100% correctly classified, date of parturition was within 1.08±0.28 (x̄ ± SE) days, and mortality events up to 5 weeks postpartum were 88% correctly classified. Across study regions, 87% of 186 caribou were pregnant and 76% of 107 caribou-years indicated birth events with median parturition dates a week later in Cochrane (23 May) than in Pickle Lake (17 May) and Nakina (16 May). Based on selection ratios of caribou-years with calves-at-heel (n=80), caribou consistently selected for lowlands and closed-canopied forests and mostly against early-seral stands (<20 yrs old) and areas near linear features during the neonatal and the post-neonatal period (up to 35 days postpartum). Based on the video footage and movement models, 30% of 81 caribou-years that indicated live births also showed females lost their calf within the first 5 weeks postpartum, with higher risk of neonatal mortality associated with increased use of lowlands and greater postpartum movement rates. This study provides informative metrics of caribou reproduction across northern Ontario that will contribute to future population modeling and identifies important landscape features to be considered in future industrial development and land use planning for caribou conservation.</description><subject>animal movement</subject><subject>Calves</subject><subject>calving</subject><subject>Caribou</subject><subject>Conservation organizations</subject><subject>Females</subject><subject>Habitat Relations</subject><subject>Industrial development</subject><subject>Lakes</subject><subject>Land use</subject><subject>Land use management</subject><subject>Land use planning</subject><subject>Lowlands</subject><subject>Mortality</subject><subject>neonatal mortality</subject><subject>Neonates</subject><subject>Parturition</subject><subject>Population dynamics</subject><subject>Postpartum</subject><subject>predation risk</subject><subject>Pregnancy</subject><subject>Rangifer tarandus caribou</subject><subject>video‐collars</subject><subject>Wildlife</subject><subject>Wildlife conservation</subject><subject>woodland caribou</subject><subject>Woodlands</subject><issn>0022-541X</issn><issn>1937-2817</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kDFPwzAQhS0EEqWwsCNZYkNK8dmxk4xVgAJqKQOobFESOyVREhc7bdV_j9sAI9Od3n3v7vQQugQyAkLobbVtliMKkYAjNICIBR4NIThGAzekHvfh4xSdWVsRwgBCMUAy1s0qNaXVLdYFXmgt67SVOHZapteu1puyXeKxUanFd6pTpilbJXG2wzO9UY1qO_yadk5vLR7nRluLX7TpPp2A523n9uhzdFKktVUXP3WI3h_u3-JHbzqfPMXjqZczysDjIuKSQU5ZyMMgF1RmimURkSR0TSBIBiQPi6wQGeVcKhpxzgVw4QOXPldsiK77vSujv9bKdkml16Z1JxPqiyB0eCgcddNTh2eNKpKVKZvU7BIgyT7FZJ9ickjRwdDD27JWu3_I5Hkxm_x6rnpPZTtt_jw0IAARCdg3ZRV-Og</recordid><startdate>20210101</startdate><enddate>20210101</enddate><creator>WALKER, PHILIP D.</creator><creator>RODGERS, ARTHUR R.</creator><creator>SHUTER, JENNIFER L.</creator><creator>THOMPSON, IAN D.</creator><creator>FRYXELL, JOHN M.</creator><creator>COOK, JOHN G.</creator><creator>COOK, RACHEL C.</creator><creator>MERRILL, EVEYLN H.</creator><general>Wiley</general><general>Blackwell Publishing Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7QL</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7U6</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0003-0083-5019</orcidid></search><sort><creationdate>20210101</creationdate><title>Comparison of Woodland Caribou Calving Areas Determined by Movement Patterns Across Northern Ontario</title><author>WALKER, PHILIP D. ; RODGERS, ARTHUR R. ; SHUTER, JENNIFER L. ; THOMPSON, IAN D. ; FRYXELL, JOHN M. ; COOK, JOHN G. ; COOK, RACHEL C. ; MERRILL, EVEYLN H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3231-5695d31c238587c62dbe3b90d08be3760b10c8fbf6b255de295556156415d45e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>animal movement</topic><topic>Calves</topic><topic>calving</topic><topic>Caribou</topic><topic>Conservation organizations</topic><topic>Females</topic><topic>Habitat Relations</topic><topic>Industrial development</topic><topic>Lakes</topic><topic>Land use</topic><topic>Land use management</topic><topic>Land use planning</topic><topic>Lowlands</topic><topic>Mortality</topic><topic>neonatal mortality</topic><topic>Neonates</topic><topic>Parturition</topic><topic>Population dynamics</topic><topic>Postpartum</topic><topic>predation risk</topic><topic>Pregnancy</topic><topic>Rangifer tarandus caribou</topic><topic>video‐collars</topic><topic>Wildlife</topic><topic>Wildlife conservation</topic><topic>woodland caribou</topic><topic>Woodlands</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WALKER, PHILIP D.</creatorcontrib><creatorcontrib>RODGERS, ARTHUR R.</creatorcontrib><creatorcontrib>SHUTER, JENNIFER L.</creatorcontrib><creatorcontrib>THOMPSON, IAN D.</creatorcontrib><creatorcontrib>FRYXELL, JOHN M.</creatorcontrib><creatorcontrib>COOK, JOHN G.</creatorcontrib><creatorcontrib>COOK, RACHEL C.</creatorcontrib><creatorcontrib>MERRILL, EVEYLN H.</creatorcontrib><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Sustainability Science Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>The Journal of wildlife management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WALKER, PHILIP D.</au><au>RODGERS, ARTHUR R.</au><au>SHUTER, JENNIFER L.</au><au>THOMPSON, IAN D.</au><au>FRYXELL, JOHN M.</au><au>COOK, JOHN G.</au><au>COOK, RACHEL C.</au><au>MERRILL, EVEYLN H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of Woodland Caribou Calving Areas Determined by Movement Patterns Across Northern Ontario</atitle><jtitle>The Journal of wildlife management</jtitle><date>2021-01-01</date><risdate>2021</risdate><volume>85</volume><issue>1</issue><spage>169</spage><epage>182</epage><pages>169-182</pages><issn>0022-541X</issn><eissn>1937-2817</eissn><abstract>Adult female survival and calf recruitment influence population dynamics, but there is limited information on calving and neonatal mortality of boreal woodland caribou (Rangifer tarandus caribou; caribou) in Ontario, Canada. We identified calf parturition sites and 5-week neonatal mortality using a movement-based approach across 3 northern Ontario study regions (Pickle Lake, Nakina, and Cochrane) that vary in their capacity to support caribou populations. In comparing 22 caribou-years of video-collar footage during 2010–2013 to predictions of the movement-based approach, we found live parturition events were 100% correctly classified, date of parturition was within 1.08±0.28 (x̄ ± SE) days, and mortality events up to 5 weeks postpartum were 88% correctly classified. Across study regions, 87% of 186 caribou were pregnant and 76% of 107 caribou-years indicated birth events with median parturition dates a week later in Cochrane (23 May) than in Pickle Lake (17 May) and Nakina (16 May). Based on selection ratios of caribou-years with calves-at-heel (n=80), caribou consistently selected for lowlands and closed-canopied forests and mostly against early-seral stands (<20 yrs old) and areas near linear features during the neonatal and the post-neonatal period (up to 35 days postpartum). Based on the video footage and movement models, 30% of 81 caribou-years that indicated live births also showed females lost their calf within the first 5 weeks postpartum, with higher risk of neonatal mortality associated with increased use of lowlands and greater postpartum movement rates. This study provides informative metrics of caribou reproduction across northern Ontario that will contribute to future population modeling and identifies important landscape features to be considered in future industrial development and land use planning for caribou conservation.</abstract><cop>Bethesda</cop><pub>Wiley</pub><doi>10.1002/jwmg.21961</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0003-0083-5019</orcidid></addata></record> |
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| ispartof | The Journal of wildlife management, 2021-01, Vol.85 (1), p.169-182 |
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| subjects | animal movement Calves calving Caribou Conservation organizations Females Habitat Relations Industrial development Lakes Land use Land use management Land use planning Lowlands Mortality neonatal mortality Neonates Parturition Population dynamics Postpartum predation risk Pregnancy Rangifer tarandus caribou video‐collars Wildlife Wildlife conservation woodland caribou Woodlands |
| title | Comparison of Woodland Caribou Calving Areas Determined by Movement Patterns Across Northern Ontario |
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