Physiological Condition of Autumn-Banded Mallards and Its Relationship to Hunting Vulnerability
An important topic of waterfowl ecology concerns the relationship between the physiological condition of ducks during the nonbreeding season and fitness; i.e., survival and future reproductive success. We investigated this subject using direct band recovery records of mallards (Anas platyrhynchos) b...
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| Veröffentlicht in: | The Journal of wildlife management 1986-04, Vol.50 (2), p.177-183 |
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| container_end_page | 183 |
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| container_issue | 2 |
| container_start_page | 177 |
| container_title | The Journal of wildlife management |
| container_volume | 50 |
| creator | Hepp, Gary R. Blohm, Robert J. Reynolds, Ronald E. Hines, James E. Nichols, James D. |
| description | An important topic of waterfowl ecology concerns the relationship between the physiological condition of ducks during the nonbreeding season and fitness; i.e., survival and future reproductive success. We investigated this subject using direct band recovery records of mallards (Anas platyrhynchos) banded in autumn (1 Oct-15 Dec) 1981-83 in the Mississippi Alluvial Valley (MAV). A condition index, weight (g)/wing length (mm), was calculated for each duck, and we tested whether condition of mallards at time of banding was related to their probability of recovery during the hunting season. In 3 years, 5,610 mallards were banded and there were 234 direct recoveries. Three binary regression models were used to test the relationship between recovery probability and condition. Likelihood-ratio tests were conducted to determine the most suitable model. For mallards banded in autumn there was a negative relationship between physical condition and the probability of recovery. Mallards in poor condition at the time of banding had a greater probability of being recovered during the hunting season. In general, this was true for all age and sex classes; however, the strongest relationship occurred for adult males. |
| doi_str_mv | 10.2307/3801893 |
| format | Article |
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We investigated this subject using direct band recovery records of mallards (Anas platyrhynchos) banded in autumn (1 Oct-15 Dec) 1981-83 in the Mississippi Alluvial Valley (MAV). A condition index, weight (g)/wing length (mm), was calculated for each duck, and we tested whether condition of mallards at time of banding was related to their probability of recovery during the hunting season. In 3 years, 5,610 mallards were banded and there were 234 direct recoveries. Three binary regression models were used to test the relationship between recovery probability and condition. Likelihood-ratio tests were conducted to determine the most suitable model. For mallards banded in autumn there was a negative relationship between physical condition and the probability of recovery. Mallards in poor condition at the time of banding had a greater probability of being recovered during the hunting season. In general, this was true for all age and sex classes; however, the strongest relationship occurred for adult males.</description><identifier>ISSN: 0022-541X</identifier><identifier>EISSN: 1937-2817</identifier><identifier>DOI: 10.2307/3801893</identifier><identifier>CODEN: JWMAA9</identifier><language>eng</language><publisher>Bethesda, MD: The Wildlife Society</publisher><subject>Anas platyrhynchos ; Animal and plant ecology ; Animal, plant and microbial ecology ; Animals ; Autoecology ; Biological and medical sciences ; Breeding ; Ducks ; Fish ; Fowling ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Geese ; Habitat preferences ; Hunting seasons ; Vertebrata ; Waterfowl ; Wildlife habitats ; Wildlife management</subject><ispartof>The Journal of wildlife management, 1986-04, Vol.50 (2), p.177-183</ispartof><rights>Copyright 1986 The Wildlife Society, Inc.</rights><rights>1987 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-d8f235c8b987a811075e7e6a3aeb6866b321417f8fb057749175266a30c158d43</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/3801893$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/3801893$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8055473$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hepp, Gary R.</creatorcontrib><creatorcontrib>Blohm, Robert J.</creatorcontrib><creatorcontrib>Reynolds, Ronald E.</creatorcontrib><creatorcontrib>Hines, James E.</creatorcontrib><creatorcontrib>Nichols, James D.</creatorcontrib><title>Physiological Condition of Autumn-Banded Mallards and Its Relationship to Hunting Vulnerability</title><title>The Journal of wildlife management</title><description>An important topic of waterfowl ecology concerns the relationship between the physiological condition of ducks during the nonbreeding season and fitness; i.e., survival and future reproductive success. We investigated this subject using direct band recovery records of mallards (Anas platyrhynchos) banded in autumn (1 Oct-15 Dec) 1981-83 in the Mississippi Alluvial Valley (MAV). A condition index, weight (g)/wing length (mm), was calculated for each duck, and we tested whether condition of mallards at time of banding was related to their probability of recovery during the hunting season. In 3 years, 5,610 mallards were banded and there were 234 direct recoveries. Three binary regression models were used to test the relationship between recovery probability and condition. Likelihood-ratio tests were conducted to determine the most suitable model. For mallards banded in autumn there was a negative relationship between physical condition and the probability of recovery. Mallards in poor condition at the time of banding had a greater probability of being recovered during the hunting season. In general, this was true for all age and sex classes; however, the strongest relationship occurred for adult males.</description><subject>Anas platyrhynchos</subject><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Autoecology</subject><subject>Biological and medical sciences</subject><subject>Breeding</subject><subject>Ducks</subject><subject>Fish</subject><subject>Fowling</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Geese</subject><subject>Habitat preferences</subject><subject>Hunting seasons</subject><subject>Vertebrata</subject><subject>Waterfowl</subject><subject>Wildlife habitats</subject><subject>Wildlife management</subject><issn>0022-541X</issn><issn>1937-2817</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><recordid>eNp1kMFKAzEQQIMoWKv4CzmInlYzyWaTHmtRW6goouJtye5m25Q0qUn20L93S4t48TQM83gMD6FLILeUEXHHJAE5YkdoACMmMipBHKMBIZRmPIevU3QW44oQBiCLASpfl9tovPULUyuLJ941JhnvsG_xuEvd2mX3yjW6wc_KWhWaiPsVz1LEb9qqHRqXZoOTx9POJeMW-LOzTgdVGWvS9hydtMpGfXGYQ_Tx-PA-mWbzl6fZZDzPagY0ZY1sKeO1rEZSKAlABNdCF4opXRWyKCpGIQfRyrYiXIh8BILTor-TGrhscjZE13vvJvjvTsdUrk2sdf-y076LJeQ5YZKKHrzZg3XwMQbdlptg1ipsSyDlLmB5CNiTVwelin2bNihXm_iLS8J5Lv5gq5h8-Nf2A-8xeeI</recordid><startdate>19860401</startdate><enddate>19860401</enddate><creator>Hepp, Gary R.</creator><creator>Blohm, Robert J.</creator><creator>Reynolds, Ronald E.</creator><creator>Hines, James E.</creator><creator>Nichols, James D.</creator><general>The Wildlife Society</general><general>Wildlife Society</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>19860401</creationdate><title>Physiological Condition of Autumn-Banded Mallards and Its Relationship to Hunting Vulnerability</title><author>Hepp, Gary R. ; Blohm, Robert J. ; Reynolds, Ronald E. ; Hines, James E. ; Nichols, James D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-d8f235c8b987a811075e7e6a3aeb6866b321417f8fb057749175266a30c158d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>Anas platyrhynchos</topic><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Autoecology</topic><topic>Biological and medical sciences</topic><topic>Breeding</topic><topic>Ducks</topic><topic>Fish</topic><topic>Fowling</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Geese</topic><topic>Habitat preferences</topic><topic>Hunting seasons</topic><topic>Vertebrata</topic><topic>Waterfowl</topic><topic>Wildlife habitats</topic><topic>Wildlife management</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hepp, Gary R.</creatorcontrib><creatorcontrib>Blohm, Robert J.</creatorcontrib><creatorcontrib>Reynolds, Ronald E.</creatorcontrib><creatorcontrib>Hines, James E.</creatorcontrib><creatorcontrib>Nichols, James D.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>The Journal of wildlife management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hepp, Gary R.</au><au>Blohm, Robert J.</au><au>Reynolds, Ronald E.</au><au>Hines, James E.</au><au>Nichols, James D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Physiological Condition of Autumn-Banded Mallards and Its Relationship to Hunting Vulnerability</atitle><jtitle>The Journal of wildlife management</jtitle><date>1986-04-01</date><risdate>1986</risdate><volume>50</volume><issue>2</issue><spage>177</spage><epage>183</epage><pages>177-183</pages><issn>0022-541X</issn><eissn>1937-2817</eissn><coden>JWMAA9</coden><abstract>An important topic of waterfowl ecology concerns the relationship between the physiological condition of ducks during the nonbreeding season and fitness; i.e., survival and future reproductive success. We investigated this subject using direct band recovery records of mallards (Anas platyrhynchos) banded in autumn (1 Oct-15 Dec) 1981-83 in the Mississippi Alluvial Valley (MAV). A condition index, weight (g)/wing length (mm), was calculated for each duck, and we tested whether condition of mallards at time of banding was related to their probability of recovery during the hunting season. In 3 years, 5,610 mallards were banded and there were 234 direct recoveries. Three binary regression models were used to test the relationship between recovery probability and condition. Likelihood-ratio tests were conducted to determine the most suitable model. For mallards banded in autumn there was a negative relationship between physical condition and the probability of recovery. Mallards in poor condition at the time of banding had a greater probability of being recovered during the hunting season. In general, this was true for all age and sex classes; however, the strongest relationship occurred for adult males.</abstract><cop>Bethesda, MD</cop><pub>The Wildlife Society</pub><doi>10.2307/3801893</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-541X |
| ispartof | The Journal of wildlife management, 1986-04, Vol.50 (2), p.177-183 |
| issn | 0022-541X 1937-2817 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_14403827 |
| source | Jstor Complete Legacy |
| subjects | Anas platyrhynchos Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences Breeding Ducks Fish Fowling Freshwater Fundamental and applied biological sciences. Psychology Geese Habitat preferences Hunting seasons Vertebrata Waterfowl Wildlife habitats Wildlife management |
| title | Physiological Condition of Autumn-Banded Mallards and Its Relationship to Hunting Vulnerability |
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