{"id":847,"date":"2015-08-08T14:39:09","date_gmt":"2015-08-08T19:39:09","guid":{"rendered":"https:\/\/uwm.edu\/field-station\/?p=847"},"modified":"2016-10-11T15:56:35","modified_gmt":"2016-10-11T20:56:35","slug":"effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows","status":"publish","type":"post","link":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/","title":{"rendered":"Effects of Food Abundance on the Timing of Breeding in Tree Swallows"},"content":{"rendered":"<h3>Peter O. Dunn and Linda A. Whittingham<\/h3>\n<p>Department of Biological Sciences, UW-Milwaukee, pdunn@uwm.edu, whitting@uwm.edu<\/p>\n<p>Understanding the mechanisms influencing the timing of reproduction has taken on new urgency as climate change is altering environmental conditions during reproduction, and there is concern that species will not be able to synchronize their reproduction with changing food supplies. In 2015 we completed the 19th year of study of the reproductive ecology of tree swallows at the 51ÁÔÆæ Field Station. One of our main goals is to determine how environmental factors, particularly temperature and food abundance, influence the timing of breeding and reproductive success. A prominent hypothesis predicts that reproductive success is maximized when animals synchronize their reproduction with seasonal peaks in food supply. This mismatch hypothesis does not seem to be supported in tree swallows, and many other species. Instead, reproductive success appears to be more closely related to the absolute levels of food, rather than to the timing of food. We thank Gretchen Meyer and Lou Nelson for their assistance, particularly in collecting data. This research was supported by funds from the College of Letters and Science, 51ÁÔÆæ.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding the mechanisms influencing the timing of reproduction has taken on new urgency as climate change is altering environmental conditions during reproduction, and there is concern that species will not be able to synchronize their reproduction with changing food supplies. One of our main goals is to determine how environmental factors, particularly temperature and food abundance, influence the timing of breeding and reproductive success.<\/p>\n","protected":false},"author":778,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","uwm_wg_additional_authors":[]},"categories":[29,90],"tags":[],"class_list":["post-847","post","type-post","status-publish","format-standard","hentry","category-news","category-research"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Field Station<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Effects of Food Abundance on the Timing of Breeding in Tree Swallows\" \/>\n<meta property=\"og:description\" content=\"Understanding the mechanisms influencing the timing of reproduction has taken on new urgency as climate change is altering environmental conditions during reproduction, and there is concern that species will not be able to synchronize their reproduction with changing food supplies. One of our main goals is to determine how environmental factors, particularly temperature and food abundance, influence the timing of breeding and reproductive success.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/\" \/>\n<meta property=\"og:site_name\" content=\"Field Station\" \/>\n<meta property=\"article:published_time\" content=\"2015-08-08T19:39:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-10-11T20:56:35+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Effects of Food Abundance on the Timing of Breeding in Tree Swallows\",\"datePublished\":\"2015-08-08T19:39:09+00:00\",\"dateModified\":\"2016-10-11T20:56:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/\"},\"wordCount\":200,\"articleSection\":[\"News\",\"Research\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/\",\"url\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/\",\"name\":\"Effects of Food Abundance on the Timing of Breeding in Tree Swallows - Field Station\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/#website\"},\"datePublished\":\"2015-08-08T19:39:09+00:00\",\"dateModified\":\"2016-10-11T20:56:35+00:00\",\"author\":{\"@id\":\"\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/news\\\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"News\",\"item\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/category\\\/news\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Effects of Food Abundance on the Timing of Breeding in Tree Swallows\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/#website\",\"url\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/\",\"name\":\"Field Station\",\"description\":\"UW-Milwaukee\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/uwm.edu\\\/field-station\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Field Station","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/","og_locale":"en_US","og_type":"article","og_title":"Effects of Food Abundance on the Timing of Breeding in Tree Swallows","og_description":"Understanding the mechanisms influencing the timing of reproduction has taken on new urgency as climate change is altering environmental conditions during reproduction, and there is concern that species will not be able to synchronize their reproduction with changing food supplies. One of our main goals is to determine how environmental factors, particularly temperature and food abundance, influence the timing of breeding and reproductive success.","og_url":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/","og_site_name":"Field Station","article_published_time":"2015-08-08T19:39:09+00:00","article_modified_time":"2016-10-11T20:56:35+00:00","twitter_card":"summary_large_image","twitter_misc":{"Written by":"","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/#article","isPartOf":{"@id":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/"},"author":{"name":"","@id":""},"headline":"Effects of Food Abundance on the Timing of Breeding in Tree Swallows","datePublished":"2015-08-08T19:39:09+00:00","dateModified":"2016-10-11T20:56:35+00:00","mainEntityOfPage":{"@id":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/"},"wordCount":200,"articleSection":["News","Research"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/","url":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/","name":"Effects of Food Abundance on the Timing of Breeding in Tree Swallows - Field Station","isPartOf":{"@id":"https:\/\/uwm.edu\/field-station\/#website"},"datePublished":"2015-08-08T19:39:09+00:00","dateModified":"2016-10-11T20:56:35+00:00","author":{"@id":""},"breadcrumb":{"@id":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/uwm.edu\/field-station\/news\/effects-of-food-abundance-on-the-timing-of-breeding-in-tree-swallows\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/uwm.edu\/field-station\/"},{"@type":"ListItem","position":2,"name":"News","item":"https:\/\/uwm.edu\/field-station\/category\/news\/"},{"@type":"ListItem","position":3,"name":"Effects of Food Abundance on the Timing of Breeding in Tree Swallows"}]},{"@type":"WebSite","@id":"https:\/\/uwm.edu\/field-station\/#website","url":"https:\/\/uwm.edu\/field-station\/","name":"Field Station","description":"UW-Milwaukee","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/uwm.edu\/field-station\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":""}]}},"acf":[],"meta_fields":{"_edit_lock":["1476219268:28"],"_edit_last":["28"],"_uwm_wg_content_review_log":["a:1:{i:0;a:5:{s:11:\"reviewer_id\";i:0;s:6:\"status\";s:5:\"reset\";s:10:\"entry_date\";s:19:\"2026-03-01 02:10:48\";s:16:\"priority_content\";s:0:\"\";s:4:\"note\";s:43:\"Content review reset at start of new cycle.\";}}"]},"publishpress_future_action":{"enabled":false,"date":"2026-04-25 13:52:32","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/posts\/847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/users\/778"}],"replies":[{"embeddable":true,"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/comments?post=847"}],"version-history":[{"count":3,"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/posts\/847\/revisions"}],"predecessor-version":[{"id":2204,"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/posts\/847\/revisions\/2204"}],"wp:attachment":[{"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/media?parent=847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/categories?post=847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uwm.edu\/field-station\/wp-json\/wp\/v2\/tags?post=847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}