{"id":2532,"date":"2019-11-08T17:55:54","date_gmt":"2019-11-08T17:55:54","guid":{"rendered":"http:\/\/wordpress.viu.ca\/biol325\/?p=2532"},"modified":"2019-11-22T17:00:50","modified_gmt":"2019-11-22T17:00:50","slug":"surf-scoter","status":"publish","type":"post","link":"https:\/\/wordpress.viu.ca\/biol325\/2019\/11\/08\/surf-scoter\/","title":{"rendered":"Surf Scoter: The Most Sensitive Waterbird in Town."},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Identification<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/10\/63899851-480px.jpg\" alt=\"Image taken from Allaboutbirds.org\" class=\"wp-image-2734\" width=\"304\" height=\"228\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/10\/63899851-480px.jpg 480w, https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/10\/63899851-480px-300x225.jpg 300w\" sizes=\"auto, (max-width: 304px) 100vw, 304px\" \/><figcaption>Male Surf Scoter floating about. Taken by <a href=\"https:\/\/www.allaboutbirds.org\/guide\/Surf_Scoter\/\">Kurt Hasselman<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/162828041-480px.jpg\" alt=\"\" class=\"wp-image-2786\" width=\"314\" height=\"236\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/162828041-480px.jpg 480w, https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/162828041-480px-300x225.jpg 300w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><figcaption>Female Surf Scoter also floating about. Taken by <a href=\"https:\/\/www.allaboutbirds.org\/guide\/Surf_Scoter\/\">Kurt Hasselman<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Introducing the Surf Scoter or <em>Melanitta perspicillata<\/em>, this goofy-looking waterfowl earned his endearing nickname &#8220;Old Skunkhead&#8221; with the black and white patches of his head. (Cornell University: All about birds) They fall under the common name of the duck family, however, their correct family name is Anatidae. This little weirdo is easy to ID. With an unmistakeable marking that almost looks like it has a giant third eye at the base of their sloping orange bill they really can&#8217;t be missed.  When differentiating between the females and males, as in most bird species, we look for the duller colours in females including a less haunting orange and white bill. when ID&#8217;ing solo females you want to look for two white patches on her head as well as the sloping beak with a grey, less eyeball looking, marking at the base.<\/p>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\">Life as a Scoter <\/h2>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">These birds are ground nesters that will nest and rear their chicks near lakes of northern Canada and Alaska. (Cornell: All About Birds) Scoters will find their mates during winter months when the males perform their courtship dance. Males will hold a stiff neck, periodically dipping their beak into the water and preening themselves. They may also do short bursts of almost flights out of the water landing near the female and calling out. If she is impressed by his moves, she will give a &#8220;chin-lift&#8221; behaviour and all, and then the wedding bells are ringing. Lastly, the male will raise his tail, shake his head and turn away to show off his handsome white patches. (Cornell: All About Birds) When its time for scoters to make their nests they will do so and hide it under vegetation to protect their eggs or fledglings. They create the classic nest bowl that we see in children&#8217;s books and cartoons. (Cornell: All About Birds) Then they spend the rest of their life cycle floating around the Atlantic and Pacific ocean coasts looking for aquatic vegetation and hunting benthic prey. (Ydenberg &amp; Schenkeveld, 1895) Benthic prey being a fancy term for creatures that live at the bottom of the ocean floor. They too enjoy the delicacies of clams, mussels, and escargot, but will also munch on marine worms, hydrozoans (a cousin of the jellyfish) and aquatic vegetation. (Cornell: All About Birds)<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Surf Scoters (Macreuse \u00e0 front blanc) courting in Shediac Bay, New Brunswick - 30 April 2014\" width=\"1180\" height=\"885\" src=\"https:\/\/www.youtube.com\/embed\/LmwwR6ll_vA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><figcaption>Male Surf Scoters performing a courtship dance for a single female Surf Scoter. Via <a href=\"https:\/\/youtu.be\/LmwwR6ll_vA\">Stuart Tingley<\/a><\/figcaption><\/figure>\n\n\n\n<h3 class=\"has-text-align-center wp-block-heading\">True Diving Ducks<\/h3>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"> Surf Scoters will synchronously dive for food, meaning they will dive down and come back up in patterned groups. There are a few hypotheses as to why they do this. One being strength in numbers, they are often more successful and can corner more prey this way. It is also a good way to protect themselves from oncoming predators or pests. (Ydenberg &amp; Schenkeveld, 1895). There have been sightings and reports of &#8220;non-foraging&#8221; dives.  This is described as social behaviour, Scoters will form a group and synchronously dive just for the practice, mastering their routines for the next Olympics perhaps? They will also bring in reinforcement by adding more scoters to these impressive diving routines when pesky gulls are around to try and interfere with their hunt. (Ydenberg &amp; Schenkeveld, 1895) Gulls are known to steal swipe the catches from scoters as they surface from a dive. (Ydenberg &amp; Schenkeveld, 1895) I&#8217;ve said it before and I&#8217;ll say it again, no one likes the gulls. Those little kleptomaniacs have prompted researchers to form the klepto-parasitism hypothesis, which they think is a part of the reason why Scoters (and other seabirds) synchronously dive. (Ydenberg &amp; Schenkeveld, 1895) Kleptoparasitism is simply the act of food theft. (Gaglio et. al, 2018) Kleptoparasitism can have a huge effect on Surf Scoters as they get most of their daily food needs from a single mussel. If that mussel is robbed, they have spent a great deal of their energy on a wasted dive. (Ydenberg &amp; Schenkeveld, 1895) There have been recordings of some huge groupings of scoters diving together. Have a look, this next video gets interesting at about 0:45.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube aligncenter wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Surf Scoter Raft Synchronous Feeding Dives\" width=\"1180\" height=\"664\" src=\"https:\/\/www.youtube.com\/embed\/6AwMPml1HGM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><figcaption>A large group of Scoters synchronously diving.  via <a href=\"https:\/\/www.youtube.com\/watch?v=6AwMPml1HGM\">M. Sid Kelly<\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">How neat is that&#8230;. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Surf Scoter&#8217;s and Telemetry <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Surf Scoters play a large roll in a telemetry study with the Canadian Wildlife Cooperative, proving that I am not the only one who thinks these birds are pretty neat. (Net, et. al, 2019) Telemetry uses satellite transmitters to track things such as (but not limited to) ecology, population density and migration patterns of a specific species of bird. In diving ducks, researchers have found more success using an intracoelomic transmitter with an external antenna. This involves surgically implanting the transmitter into the coelom (internal body cavity). While this is more invasive than the external transmitters used in many bird species are monitored with telemetry, it has proven to prevent complications in the long term. (Mills et. al, 2016) Look at that little swimming car radio go, contributing to science and stuff. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/Scaup_USGS.png\" alt=\"\" class=\"wp-image-2829\" width=\"413\" height=\"332\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/Scaup_USGS.png 404w, https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/Scaup_USGS-300x241.png 300w\" sizes=\"auto, (max-width: 413px) 100vw, 413px\" \/><figcaption>Photo of a Surf Scoter sporting his intracoelomic transmitter with the external antenna showing, highly trending right now in the telemetry market. Photo Taken from <a href=\"https:\/\/www.usgs.gov\/media\/images\/surf-scoter-0\">USGS.gov<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">While these transmitters have been relatively safe for most diving ducks, they seemed to be posing a threat to our precious Surf Scoters. The mortality rate of other diving ducts was found to be 0-10% mortality after implantation, while Surf Scoters saw a 61% mortality rate. (Net et. al, 2019) The difference is staggering and it prompted a study by R. L. Net and his colleges, that searched for a way to reduce this. These numbers become even more embarrassing for our favourite water birds as they found that the main (but not only) culprit for the post-implantation mortality was due to stress. The stress of being taken away from their natural habit and handled is too much for our fragile little friends. Even though other diving birds handled the implantation process just fine, our especially sheltered waterfowl friends could not handle it.  So to take away some of the stress they designed an experiment in which they sedated the Scoters, which I&#8217;m sure we all could benefit from sometimes.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/download-1.jpg\" alt=\"\" class=\"wp-image-2831\" width=\"247\" height=\"248\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/download-1.jpg 224w, https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/download-1-150x150.jpg 150w\" sizes=\"auto, (max-width: 247px) 100vw, 247px\" \/><figcaption>Injecting a female Surf Scoter with Midazolam Hydrochloride intranasally with a 22 Gauge Soft-tipped catheter. Image is taken from Article by <a href=\"https:\/\/bioone.org\/journals\/Journal-of-Zoo-and-Wildlife-Medicine\/volume-50\/issue-1\/2018-0115\/INTRANASAL-ADMINISTRATION-OF-MIDAZOLAM-HYDROCHLORIDE-IMPROVES-SURVIVAL-IN-FEMALE-SURF\/10.1638\/2018-0115.short\">Net et. al 2019<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"> The birds were captured in floating mist nests, a commonly used tool in many avian-based research and studies. (Net et. al, 2019) The sedative Midazolam Hydrochloride was then given shortly after their initial capture and shortly before returning back to the ocean, they then monitored their survival using the freshly placed transmitters. (Net et. al, 2019) The experiment monitored 56 female birds from time captured to surgical implantation, to recovery and release(Net et. al, 2019). Why did they choose to only perform this experiment on female scoters? I&#8217;m not entirely sure, my guess was to keep the experiment as controlled as possible. They gave 28 birds the Midazolam intranasally and 28 birds saline intranasally as a control. they used a soft-tipped catheter tip to inject the medication or placebo safely into the nostrils of the birds. This is more of a glorified squirt gun if you ask me. One of the perks of Midazolam is that it is highly effective and fast-acting when given intranasally, which reduces the handling time and stress of the bird further. (Mans, et. al 2012) Once they released our funky flying friends, the results came back extremely positive. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/f02_167.jpg\" alt=\"\" class=\"wp-image-2834\" width=\"292\" height=\"260\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/f02_167.jpg 510w, https:\/\/wordpress.viu.ca\/biol325\/files\/2019\/11\/f02_167-300x267.jpg 300w\" sizes=\"auto, (max-width: 292px) 100vw, 292px\" \/><figcaption>This bar plot shows the mortality rates of both groups of birds. Group 1 (dark) was given the Midazolam. Group 2 (light) was given the placebo saline. The researches took results at 14-days post-implant, and 30 days post-implant. Image is taken from Article by <a href=\"https:\/\/bioone.org\/journals\/Journal-of-Zoo-and-Wildlife-Medicine\/volume-50\/issue-1\/2018-0115\/INTRANASAL-ADMINISTRATION-OF-MIDAZOLAM-HYDROCHLORIDE-IMPROVES-SURVIVAL-IN-FEMALE-SURF\/10.1638\/2018-0115.short\">Net et. al 2019<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">They saw a huge drop in the mortality rate when using the sedative post-implantation. They check in with the birds at 14 days and 30 days post-release. (Net et. al, 2019) The final results showing that the group of birds that did not receive the Midazolam had a mortality rate of 61.5%, as expected, while the birds treated with the drug only saw a mortality rate of 23.1%. (Net et. al, 2019) Excellent news for future scoters that are used in Telemetry.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"> <\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-style-large is-layout-flow wp-block-quote-is-layout-flow\"><p>Thanks for reading! Please feel free to ask any questions in the reply section below.<\/p><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">References<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gaglio, D., Sherley, R. B., Cook, T. R., Ryan,\nP. G., &amp; Flower, T. (2018). The costs of kleptoparasitism: a study of\nmixed-species seabird breeding colonies.&nbsp;<em>Behavioral ecology<\/em>,&nbsp;<em>29<\/em>(4), 939-947.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mans, C., Guzman, D. S.-M., Lahner, L. L., Paul-Murphy, J., &amp; Sladky, K. K. (2012). Sedation and Physiologic Response to Manual Restraint After Intranasal Administration of Midazolam in Hispaniolan Amazon Parrots (Amazona ventralis).&nbsp;<em>Journal of Avian Medicine and Surgery<\/em>,&nbsp;<em>26<\/em>(3), 130\u2013139. doi: 10.1647\/2011-037r.1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mills, K. L., Gaydos, J. K., Fiorello, C. V., Whitmer, E. R., De La Cruz, S., Mulcahy, D. M., &#8230; &amp; Ziccardi, M. H. (2016). Post-release survival and movement of western grebes (Aechmophorus occidentalis) implanted with intracoelomic satellite transmitters.&nbsp;<em>Waterbirds<\/em>,&nbsp;<em>39<\/em>(2), 175-187.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Net, R. L., Mulcahy, D. M., Santamaria-Bouvier, A., Gilliland, S. G., Bowman, T. D., Lepage, C., &amp; Lair, S. (2019). intranasal administration of midazolam hydrochloride improves survival in female surf scoters (melanitta perspicillata ) surgically implanted with intracoelomic transmitters.<em>&nbsp;Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians,&nbsp;50<\/em>(1), 167. doi:10.1638\/2018-0115<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Surf Scoter Overview, All About Birds, Cornell Lab of Ornithology. (n.d.). Retrieved from https:\/\/www.allaboutbirds.org\/guide\/Surf_Scoter\/overview.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ydenberg, R. C., &amp; Schenkeveld, L. E. (1985). Synchronous diving by surf scoter flocks.<em>&nbsp;Canadian Journal of Zoology,&nbsp;63<\/em>(11), 2516-2519. doi:10.1139\/z85-372<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Identification Introducing the Surf Scoter or Melanitta perspicillata, this goofy-looking waterfowl earned his endearing nickname &#8220;Old Skunkhead&#8221; with the black and white patches of his head. (Cornell University: All about [&hellip;]<\/p>\n","protected":false},"author":2035,"featured_media":2889,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2532","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts\/2532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/users\/2035"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/comments?post=2532"}],"version-history":[{"count":63,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts\/2532\/revisions"}],"predecessor-version":[{"id":3250,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts\/2532\/revisions\/3250"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/media\/2889"}],"wp:attachment":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/media?parent=2532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/categories?post=2532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/tags?post=2532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}