{"id":2800,"date":"2017-03-28T21:18:09","date_gmt":"2017-03-29T01:18:09","guid":{"rendered":"http:\/\/pages.vassar.edu\/sensoryecology\/?page_id=2800"},"modified":"2017-03-28T21:18:09","modified_gmt":"2017-03-29T01:18:09","slug":"chickadee-social-dominance","status":"publish","type":"page","link":"https:\/\/pages.vassar.edu\/sensoryecology\/chickadee-social-dominance\/","title":{"rendered":"Chickadee Social Dominance"},"content":{"rendered":"

Some animals have non-linear hierarchies, where one individual dominates others but he himself can also be dominated. In contrast, dominance hierarchies in black-capped chickadees are linear, where one individual dominates all the others; a second dominates all but the first, and so on. Aaron Harvey \u201917 is carrying out a project at the Vassar Farm and Ecological Preserve (VFEP) to establish hierarchies of the resident chickadee populations. Determining who is dominant and who is submissive between two chickadees requires designating a \u201cwin\u201d and a \u201closs.\u201d Behaviors such as chasing another bird away from a feeding station, resisting an attack, or obtaining a submissive reaction from another bird count as \u201cwins.\u201d Measuring wins as a percent of total interactions can help determine dominance rank. We are doing this by reviewing videos taken by a mounted Kodak Pixpro of chickadees interacting at feeding platforms. Potential dominance behaviors we are looking for include:<\/span><\/p>\n

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  1. <\/b>\"\"<\/a>\"\"<\/a><\/b>\n
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      \"\"<\/a>The black-capped chickadee on the right elicits a submissive reaction from the one on the left, who turns away from his opponent<\/span><\/i>. (AP Photo\/Mark Duncan)<\/ol>\n<\/div>\n

      Supplants: One bird forces another off the platform<\/span><\/li>\n

    1. <\/b>Resisting a Supplant: One resists being forced off the platform by another<\/span><\/li>\n
    2. <\/b>Submissive Posturing: While a bird eats, another faces its head away until the first finishes<\/span><\/li>\n
    3. Waiting: One bird waits on the platform until the first has finished feeding<\/span><\/span>\n

      \"\"<\/a>

      Jack Blomberg ’18 holds chickadee for the first time<\/p><\/div><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

      Some animals have non-linear hierarchies, where one individual dominates others but he himself can also be dominated. In contrast, dominance hierarchies in black-capped chickadees are linear, where one individual dominates all the others; a second dominates all but the first, … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":3940,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2800","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/pages\/2800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/users\/3940"}],"replies":[{"embeddable":true,"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/comments?post=2800"}],"version-history":[{"count":6,"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/pages\/2800\/revisions"}],"predecessor-version":[{"id":2829,"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/pages\/2800\/revisions\/2829"}],"wp:attachment":[{"href":"https:\/\/pages.vassar.edu\/sensoryecology\/wp-json\/wp\/v2\/media?parent=2800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}