{"id":2442068,"date":"2019-03-24T00:00:00","date_gmt":"2019-03-24T06:00:00","guid":{"rendered":"https:\/\/www.aspentimes.com\/?p=302418"},"modified":"2019-03-24T07:52:13","modified_gmt":"2019-03-24T13:52:13","slug":"cpw-studies-aspen-area-elk-herd-to-see-how-calves-are-faring","status":"publish","type":"post","link":"https:\/\/alwaysmountaintime.com\/kspn\/local-news\/cpw-studies-aspen-area-elk-herd-to-see-how-calves-are-faring\/","title":{"rendered":"CPW studies Aspen-area elk herd to see how calves are faring"},"content":{"rendered":"<div class=\"swift-gallery\" readability=\"6.8468013468013\">\n<ul id=\"imageGallery-302418-74\" class=\"gallery list-unstyled\">\n<li data-thumb=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-150x150.jpg\" data-src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19.jpg\" data-sub-html=\"Dan Gageby\/courtesy photo | A helicopter flies a pregnant cow elk off of Wildcat Ranch to a staging site where Colorado Parks and Wildlife officers will implant a transmitter that will pop out when she has a calf later this spring. The image was captured by reader Dan Gageby.\" class=\"h-100\">\n<div class=\"row no-gutters h-100\">\n<div class=\"col my-auto\" readability=\"7\"><img decoding=\"async\" src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19.jpg\" alt=\"A helicopter flies a pregnant cow elk off of Wildcat Ranch to a staging site where Colorado Parks and Wildlife officers will implant a transmitter that will pop out when she has a calf later this spring. The image was captured by reader Dan Gageby.\"><\/p>\n<div class=\"caption\" readability=\"9\">\n<p><strong>A helicopter flies a pregnant cow elk off of Wildcat Ranch to a staging site where Colorado Parks and Wildlife officers will implant a transmitter that will pop out when she has a calf later this spring. The image was captured by reader Dan Gageby.<\/strong><br \/>Dan Gageby\/courtesy photo<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li data-thumb=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-1-150x150.jpg\" data-src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-1.jpg\" data-sub-html=\"Dan Gageby\/courtesy photo | A helicopter crew contracted by Colorado Parks and Wildlife transports a pregnant cow elk last week as part of a study on the Avalanche Creek Elk Herd.\" class=\"h-100\">\n<div class=\"row no-gutters h-100\">\n<div class=\"col my-auto\" readability=\"6.5\"><img decoding=\"async\" src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-1.jpg\" alt=\"A helicopter crew contracted by Colorado Parks and Wildlife transports a pregnant cow elk last week as part of a study on the Avalanche Creek Elk Herd.\"><\/p>\n<div class=\"caption\" readability=\"8\">\n<p><strong>A helicopter crew contracted by Colorado Parks and Wildlife transports a pregnant cow elk last week as part of a study on the Avalanche Creek Elk Herd.<\/strong><br \/>Dan Gageby\/courtesy photo<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li data-thumb=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-2-150x150.jpg\" data-src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-2.jpg\" data-sub-html=\"Dan Gageby\/courtesy photo | A worker with Colorado Parks and Wildlife prepares a pregnant cow elk for transport by helicopter as part of a study. The elk was hobbled and blindfolded before flown to a staging area.\" class=\"h-100\">\n<div class=\"row no-gutters h-100\">\n<div class=\"col my-auto\" readability=\"7\"><img decoding=\"async\" src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-2.jpg\" alt=\"A worker with Colorado Parks and Wildlife prepares a pregnant cow elk for transport by helicopter as part of a study. The elk was hobbled and blindfolded before flown to a staging area.\"><\/p>\n<div class=\"caption\" readability=\"9\">\n<p><strong>A worker with Colorado Parks and Wildlife prepares a pregnant cow elk for transport by helicopter as part of a study. The elk was hobbled and blindfolded before flown to a staging area.<\/strong><br \/>Dan Gageby\/courtesy photo<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li data-thumb=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-3-150x150.jpg\" data-src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-3.jpg\" data-sub-html=\"Dan Gageby\/courtesy photo | Workers with Colorado Parks and Wildlife monitor the health of a pregnant cow elk and implant a transmitter that will drop out as she prepares to give birth.\" class=\"h-100\">\n<div class=\"row no-gutters h-100\">\n<div class=\"col my-auto\" readability=\"6.5\"><img decoding=\"async\" src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-3.jpg\" alt=\"Workers with Colorado Parks and Wildlife monitor the health of a pregnant cow elk and implant a transmitter that will drop out as she prepares to give birth.\"><\/p>\n<div class=\"caption\" readability=\"8\">\n<p><strong>Workers with Colorado Parks and Wildlife monitor the health of a pregnant cow elk and implant a transmitter that will drop out as she prepares to give birth.<\/strong><br \/>Dan Gageby\/courtesy photo<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li data-thumb=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-4-150x150.jpg\" data-src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-4.jpg\" data-sub-html=\"Kurtis Tesch-CPW\/courtesy photo | Kurtis Tesch, district wildlife manager for the Upper Roaring Fork Valley, captured this image of a cow elk before it was flow by helicopter to be implanted with a transmitter. Colorado Parks and Wildlife temporarily captured 30 pregnant cow elk for what will be a six-year study.\" class=\"h-100\">\n<div class=\"row no-gutters h-100\">\n<div class=\"col my-auto\" readability=\"8.5\"><img decoding=\"async\" src=\"https:\/\/cdn.aspentimes.com\/wp-content\/uploads\/sites\/5\/2019\/03\/elkstudy-atd-03XX19-4.jpg\" alt=\"Kurtis Tesch, district wildlife manager for the Upper Roaring Fork Valley, captured this image of a cow elk before it was flow by helicopter to be implanted with a transmitter. Colorado Parks and Wildlife temporarily captured 30 pregnant cow elk for what will be a six-year study.\"><\/p>\n<div class=\"caption\" readability=\"12\">\n<p><strong>Kurtis Tesch, district wildlife manager for the Upper Roaring Fork Valley, captured this image of a cow elk before it was flow by helicopter to be implanted with a transmitter. Colorado Parks and Wildlife temporarily captured 30 pregnant cow elk for what will be a six-year study.<\/strong><br \/>Kurtis Tesch-CPW\/courtesy photo<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<p class=\"caption-toggle\"><a href=\"https:\/\/www.aspentimes.com\/news\/cpw-studies-aspen-area-elk-herd-to-see-how-calves-are-faring\/#\" class=\"show-captions\">Show Captions<\/a><a href=\"https:\/\/www.aspentimes.com\/news\/cpw-studies-aspen-area-elk-herd-to-see-how-calves-are-faring\/#\" class=\"hide-captions\">Hide Captions<\/a><\/p>\n<\/div>\n<p class=\"STND-STND BodyText DropCap\">Pregnant cow elk were flying through the skies of the Roaring Fork Valley last week, but it wasn\u2019t an alien abduction. It was the launch of a six-year study by Colorado Parks and Wildlife.<\/p>\n<p class=\"STND-STND BodyText\">Wildlife officers and a contractor helicopter crew temporarily captured 24 pregnant elk in locations ranging from Sky Mountain Park outside of Snowmass Village to south of Glenwood Springs, CPW acting area wildlife manager Mike Yamashita said.<\/p>\n<p class=\"STND-STND BodyText\">They were strapped into harnesses and transported to a staging area where their health was monitored and recorded. They were implanted with a transmitter that will drop out when they give birth this spring, he said.<\/p>\n<p class=\"STND-STND BodyText\">The elk were flown back to where they were found or were released from the staging area, if it wasn\u2019t far from where they were snared.<\/p>\n<p class=\"STND-STND BodyText\">Once the cows give birth, wildlife officers will scramble to the sites to capture the newborn calves and fit them with collars or ear-tag transmitters so their travel patterns and survival rates can be studied, Yamashita said.<\/p>\n<p class=\"STND-STND BodyText\">\u201cIt\u2019s part of a project where we\u2019re looking at elk recruitment issues,\u201d he said.<\/p>\n<p class=\"STND-STND BodyText\">Recruitment in this case means calves reaching the age of 1, when they are considered recruited into the herd.<\/p>\n<p class=\"STND-STND BodyText\">CPW is interested in the study because the birth rates of several elk herds in the state are below what is considered sustainable. Similar research is occurring with herds in other parts of Colorado.<\/p>\n<p class=\"STND-STND BodyText\">An elk herd needs a birth rate of 40 to 50 calves per 100 cows to be sustainable, Yamashita explained. The Avalanche Creek Elk Herd, the name given to several bands of elk that roam in the Roaring Fork Valley on the south side of Highway 82, has experienced ratios from 30 to the low teens per 100 cows over the past decade, according to estimates from aerial surveys conducted each year.<\/p>\n<p class=\"STND-STND BodyText\">That has wildlife officers concerned, Yamashita said.<\/p>\n<p class=\"STND-STND BodyText\">So, CPW wants to monitor what is happening with the calves \u2014 whether they achieve recruitment or the timing and cause of death.<\/p>\n<p class=\"STND-STND BodyText\">The research will be carried out over six years to monitor elk under different conditions. Last year\u2019s weather, for example, couldn\u2019t be much more different than this year\u2019s weather. The snowpack was rapidly disappearing last March. This year it is well above average. Conducting the research over six years will balance out environmental factors.<\/p>\n<p class=\"STND-STND BodyText\">The overall results will help CPW determine if cows aren\u2019t getting pregnant or if calves aren\u2019t reaching recruitment.<\/p>\n<p class=\"STND-STND BodyText\">\u201cThat\u2019s one of the real questions we\u2019re asking with this study,\u201d Yamashita said.<\/p>\n<p class=\"STND-STND BodyText\">To capture the pregnant cows, CPW uses fixed-wing spotter aircraft in the air to guide the helicopter crew.<\/p>\n<p class=\"STND-STND BodyText\">They honed in on small batches of elk and fired nets to capture the cows. The elk were hobbled and blindfolded, then flown to a staging area where wildlife officers were waiting.<\/p>\n<p class=\"STND-STND BodyText\">The cows\u2019 health is closely monitored and they aren\u2019t harmed during transport, Yamashita said.<\/p>\n<p class=\"STND-STND BodyText\">The goal was to capture 30 pregnant cows in the Roaring Fork Valley. The contractor had captured 24 when it was called to a different project in Craig on Wednesday, Yamashita said. The hope is to return this year to capture six more cows for the research.<\/p>\n<p class=\"STND-STND BodyText\">Cows were captured in the Owl Creek\/Sky Mountain Park area, Wildcat Ranch, the Crown in the midvalley and between Carbondale and Glenwood Springs.<\/p>\n<p class=\"STND-STND BodyText\">Roaring Fork Valley resident Dan Gageby had the good fortune of witnessing the crews capture the cow elk near the property where he works. He was able to get pictures of the process.<\/p>\n<p class=\"STND-STND BodyText\">Most calves will be born toward the end of May. The amount of time officers will be in contact with calves to install collars will be \u201cminimal\u201d and not harmful, Yamashita said.<\/p>\n<p class=\"STND-STND BodyText\">The study will show elk migration patterns, he said, and will help wildlife officers and public lands managers gauge if recreation is affecting recruitment.<\/p>\n<p class=\"STND-STND BodyText\">Many public lands in the valley have winter closures to benefit wildlife. The Pitkin County open space program closes Sky Mountain Park and the Glassier Open Space, next to the Crown, from Dec. 1 through May 15.<\/p>\n<p class=\"STND-STND BodyText\">In the Pitkin County Open Space and Trails department\u2019s February newsletter, officials said a second part of the study will entail placing wildlife cameras in a grid pattern in select areas to observe elk and other wildlife. That also will help evaluate seasonal closures.<\/p>\n<p class=\"STND-STND BodyText\">The open space program provided funds to help CPW conduct studies on elk, bighorn sheep and mountain goats. It budgeted $92,000 this year to purchase tracking equipment and another $54,000 contribution is being contemplated for 2020.<\/p>\n<p class=\"STND-STND BodyText\">Once results of the study are in, they will be shared with public land managers, according to CPW.<\/p>\n<p class=\"STND-STND BodyText Tagline\"><a href=\"mailto:scondon@aspentimes.com\">scondon@aspentimes.com<\/a><\/p>\n<p><a href=\"https:\/\/www.aspentimes.com\/news\/cpw-studies-aspen-area-elk-herd-to-see-how-calves-are-faring\/\" target=\"_blank\" rel=\"noopener noreferrer\">via:: The Aspen Times<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A helicopter flies a pregnant cow elk off of Wildcat Ranch to a staging site where Colorado Parks and Wildlife officers will implant a transmitter that will pop out when she has a calf later this spring. The image was captured by reader Dan Gageby.Dan Gageby\/courtesy photo A helicopter crew contracted by Colorado Parks and [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[49],"tags":[],"class_list":{"0":"post-2442068","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-local-news"},"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-06-15 17:39:58","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"distributor_meta":false,"distributor_terms":false,"distributor_media":false,"distributor_original_site_name":"KSPN The Valley&#039;s Quality Rock","distributor_original_site_url":"https:\/\/alwaysmountaintime.com\/kspn","push-errors":false,"_links":{"self":[{"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/posts\/2442068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/comments?post=2442068"}],"version-history":[{"count":0,"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/posts\/2442068\/revisions"}],"wp:attachment":[{"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/media?parent=2442068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/categories?post=2442068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alwaysmountaintime.com\/kspn\/wp-json\/wp\/v2\/tags?post=2442068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}