{"id":2605,"date":"2019-02-25T20:32:42","date_gmt":"2019-02-25T20:32:42","guid":{"rendered":"http:\/\/blogs.oregonstate.edu\/gemmlab\/?p=2605"},"modified":"2019-02-26T03:31:24","modified_gmt":"2019-02-26T03:31:24","slug":"midway-atoll-2","status":"publish","type":"post","link":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/2019\/02\/25\/midway-atoll-2\/","title":{"rendered":"Midway Atoll: the next two weeks at the largest albatross colony in the world (two years later)"},"content":{"rendered":"

By Rachael Orben, Assistant Professor (Senior Research), Seabird Oceanography Lab<\/em><\/p>\n

This February I had the opportunity to spend two weeks at Midway Atoll National Wildlife Refuge<\/a>\u00a0in the\u00a0Papah\u0101naumoku\u0101kea Marine National Monument<\/a>.\u00a0I was there to GPS track black-footed and Laysan albatross during their short chick-brooding foraging trips. Two weeks is just enough time since the albatross are taking short trips (3-5 days) to feed their rapidly growing chicks.<\/p>\n

My first visit to Midway (2016 blog post<\/a>) occurred right as the black-footed albatross chicks were hatching (quickly followed by the Laysan albatross chicks). This time, we arrived almost exactly when I had left off. The oldest chicks were just about two weeks old. This shift in phenology meant that, though subtle, each day offered new insights for me as I watched chicks transform into large aware and semi-mobile birds. By the time we left, unattended chicks were rapidly multiplying as the adults shifted to the chick-rearing stage. During chick rearing, both parents leave the chick unattended and take longer foraging trips.<\/p>\n

\"IMG_6868 <\/a> <\/div> <\/div>
\"IMG_6610\" <\/a> <\/div> <\/div> <\/div> <\/div>\n

Our research goal was to collect tracking data from both species that can be used to address a couple of research questions. First of all, winds can aid, or hinder albatross foraging and flight efficiency (particularly during the short brooding trips). In the North Pacific, the strength and direction of the winds are influenced by the ENSO (El\u00a0Ni\u00f1o Southern Oscillation) cycles. The day after we left Midway, NOAA issued an El Ni\u00f1o advisory<\/a> indicating weak El Nino conditions. We know from previous work at Tern Island (farther east and farther south at 23.87 N, -166.28 W) that El Ni\u00f1o improves foraging for Laysan albatrosses during chick brooding, while during La Ni\u00f1a reproductive success is lower (Thorne et al., 2016). However, since Midway is farther north, and farther west the scenario might be different there. Multiple years of GPS tracking data are needed to address this question and we hope to return to collect more data next year (especially if \u00a0La Ni\u00f1a follows the El Ni\u00f1o as is often the case).<\/p>\n

We will also overlap the tracking data with fishing boat locations from the Global Fishing Watch database to assess the potential for birds from Midway to interact with high seas fisheries during this time of year (project description<\/a>, associated blog post<\/a>). Finally, many of the tags we deployed incorporated a barometric pressure sensor and the data can be used to estimate flight heights relative to environmental conditions such as wind strength. This type of data is key to assessing the impact of offshore wind energy (Kelsey et al., 2018).<\/p>\n

How to track an albatross<\/h4>\n

To track an albatross we use small GPS tags that we tape to the back feathers. After the bird returns from a foraging trip, we remove the tape from the feathers and take the datalogger off. Then we recharge the battery and download the data!<\/p>\n

\"Catching <\/a>
Catching a tagged albatross that just returned from its foraging trip. Photo V. Ternisien <\/div> <\/div> <\/div> <\/div>
\"Recording <\/a>
Recording data. Photo V. Ternisien <\/div> <\/div> <\/div>
\"Getting <\/a>
Getting ready to remove the GPS datalogger. Photo V. Ternisien <\/div> <\/div> <\/div>
\"The <\/a>
The GPS datalogger was taped to the back feathers of the bird. To remove the tag we simply peel off the tape. Photo V. Ternisien <\/div> <\/div> <\/div> <\/div> <\/div>\n

This research is a collaboration between Lesley Thorne (Stony Brook University)<\/a>, Scott Shaffer (San Jose State University)<\/a>, myself (Oregon State University)<\/a>, and Melinda Conners (Washington State University)<\/a>. The field effort was generously supported by the Laurie Landeau Foundation via the Minghua Zhang Early Career Faculty Innovation Fund at Stoney Brook University to Lesley Thorne.<\/p>\n

My previous visit to Midway occurred just after house mice were discovered attacking incubating adult albatrosses. Since then, a lot of thought and effort had gone into developing a plan to eradicate mice from Midway. You can find out more via Island Conservation\u2019s Midway blogs<\/a> and the USFWS<\/a>.<\/pre>\n
 
 
 
    \"IMG_6348\" <\/a> <\/div> <\/div>  
 
    \"IMG_6954\" <\/a> <\/div> 
    \"Dancing.\" <\/a> 
 Dancing. <\/div> <\/div> <\/div>  <\/div>  
 
 
    \"There <\/a> 
 There is always something happening in a seabird colony. <\/div> <\/div> <\/div>  
 
    \"IMG_6881\" <\/a> <\/div> <\/div>  
 
    \"IMG_6758\" <\/a> <\/div> <\/div>  <\/div>  
 
 
    \"Red-tailed <\/a> 
 Red-tailed tropicbird <\/div> <\/div> 
    \"IMG_6463\" <\/a> <\/div> <\/div>  
 
    \"IMG_6414\" <\/a> <\/div> <\/div>  <\/div>  
 
 
    \"From <\/a> 
 From left to right: A Laysan albatross, a hybrid, and a black-footed albatross. <\/div> <\/div> <\/div>  
 
    \"IMG_6329\" <\/a> <\/div> <\/div>  <\/div>  
 
 
    \"IMG_6851\" <\/a> <\/div> <\/div>  
 
    \"IMG_6293\" <\/a> <\/div> 
    \"The <\/a> 
 The colony was never quiet. Even at night. <\/div> <\/div> <\/div>  <\/div>  
 
 
    \"Laysan <\/a> <\/div> <\/div>  
 
    \"IMG_6244\" <\/a> <\/div> <\/div>  
 
    \"IMG_6155\" <\/a> <\/div> <\/div>  <\/div>  
 
 
    \"IMG_6147\" <\/a> <\/div> 
    \"IMG_6104\" <\/a> <\/div> <\/div>  
 
    \"Laysan <\/a> <\/div> <\/div>  <\/div>  
 
 
    \"A <\/a> 
 A GPS tagged Laysan albatross. <\/div> <\/div> <\/div>  
 
    \"Laysan <\/a> <\/div> <\/div>  
 
    \"Habitat <\/a> 
 Habitat restoration. <\/div> <\/div> <\/div>  
 
    \"A <\/a> 
 A short-tailed albatross sitting next to his chick (the large black chick the his right). <\/div> <\/div> <\/div>  <\/div>  <\/div>\n
References<\/strong><\/h6>\n
Kelsey, E. C., Felis, J. J., Czapanskiy, M., Pereksta, D. M., & Adams, J. (2018). Collision and displacement vulnerability to offshore wind energy infrastructure among marine birds of the Pacific Outer Continental Shelf. Journal of Environmental Management<\/em>, 227<\/em>, 229\u2013247. http:\/\/doi.org\/10.1016\/j.jenvman.2018.08.051<\/a><\/p>\n
Thorne, L. H., Conners, M. G., Hazen, E. L., Bograd, S. J., Antolos, M., Costa, D. P., & Shaffer, S. A. (2016). Effects of El Ni\u00f1o-driven changes in wind patterns on North Pacific albatrosses. Journal of the Royal Society Interface<\/em>, 13<\/em>(119), 20160196. http:\/\/doi.org\/10.1098\/rsif.2016.0196<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
By Rachael Orben, Assistant Professor (Senior Research), Seabird Oceanography Lab This February I had the opportunity to spend two weeks at Midway Atoll National Wildlife Refuge\u00a0in the\u00a0Papah\u0101naumoku\u0101kea Marine National Monument.\u00a0I was there to GPS track black-footed and Laysan albatross during their short chick-brooding foraging trips. Two weeks is just enough time since the albatross are … Continue reading Midway Atoll: the next two weeks at the largest albatross colony in the world (two years later)<\/span><\/a><\/p>\n","protected":false},"author":7022,"featured_media":2634,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1011780,1],"tags":[3261,1834,712786,712774,677522,712838,676700],"class_list":["post-2605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-north-pacific-albatross-and-fisheries-overlap","category-uncategorized","tag-albatross","tag-behavior","tag-collaborative-research","tag-distribution","tag-foraging-ecology","tag-rachael-orben","tag-seabirds"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2115\/files\/2019\/02\/IMG_6758.jpg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5Mfqy-G1","_links":{"self":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/posts\/2605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/users\/7022"}],"replies":[{"embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/comments?post=2605"}],"version-history":[{"count":16,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/posts\/2605\/revisions"}],"predecessor-version":[{"id":2661,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/posts\/2605\/revisions\/2661"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/media\/2634"}],"wp:attachment":[{"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/media?parent=2605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/categories?post=2605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dev.blogs.oregonstate.edu\/gemmlab\/wp-json\/wp\/v2\/tags?post=2605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}