Centennial Valley Association April 2018
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Centennial Valley Association Casey Smith– Centennial Outfitters April 2018 Project Updates Lower Red Rock Lake Lesser Scaup Project Lesser scaup are the most common diving duck in North America and have been below continental population objectives since the late 1980s. Lower Red Rock Lake within Red Rock Lakes National Wildlife Refuge is home to one of the highest densities of breeding lesser scaup in North America, making it an ideal place to study factors that influence scaup population. A study was initiated in 2005 on Lower Lake to explore drivers of scaup female, nest, and duckling survival- important ‘vital rates’ that have a strong influence on population dynamics. The Lower Red Rock Lake Lesser Scaup Project will commence its 14th year in May 2018, led by two graduate students, Kyla Bas (University of Saskatchewan) and Kelsey Navarre (Colorado State University). Field work begins each year in May when Kyla and Kelsey conduct surveys to find uniquely-marked female scaup (Fig. 1). Uniquely marking and re-sighting females through time allows estimation of survival during breeding (May-September) and non-breeding (October-April) seasons. After May surveys are completed, they begin searching for and monitoring nests to determine nest survival, another important vital rate. Nests are revisited just before hatching to mark ducklings with a small tag in the web of one foot. Recapturing web-tagged ducklings during two week-long banding drives that culminate the field season allows estimation of duckling surviv- Fig. 1-Chris Vennum al. During these banding drives, researchers and volunteers corral flightless scaup (adults are molting, and ducklings haven’t grown their flight feathers yet), into a trap. Once secured, scaup are banded, measured, weighed, and a subset is nasal-marked. During the two weeks that separate the banding drives a second survey for nasal-marked females is conducted. Conducting a survey at the Kelsey Navarre beginning of the nesting season (May) and again at the end (August) is how seasonal estimates of female survival can be obtained. Any questions about the Lesser Scaup project can be directed to Kelsey Navarre at [email protected]. The Beaverhead Watershed Committee (BWC) and BLM are High Divide Collaborative trying out a de-hummocking project in Little Basin Creek to see if a Wildlife Connectivity and Conflict Reduction, Forests and Fire, and Drought low cost, low impact approach can "fix" them. Resiliency- these are the topics of discussion at this year's High Divide BWC is working on a remote assessment of the riparian Collaborative Workshop on April 18-19, in Dillon, MT. Rural communities throughout the High Divide landscape have long histories of working in local condition in Horse Prairie to get a sense of the health of the watershed partnerships to address conservation issues. The High Divide Collaborative and to identify possible projects. scales those efforts up to a larger landscape perspective across the Idaho- They are continuing to work on Montana divide. The Collaborative is an effective partnership of landowners, upland wet meadow restoration, local community leaders, public land managers, state wildlife agencies, scientists, using low-cost rock structures to and conservation groups who work together to conserve and restore resources of hold water on the land longer importance for local communities and to protect ecological and social integrity at during runoff, hopefully drowning the landscape scale. sagebrush and increasing late This year, we will learn what season forage for livestock and communities are doing to reduce conflict with grizzly bears as they expand their range, how wildlife. they are working together to increase the pace and scale of forest restoration, and planning Announcements for drought resilience. We'll also be talking about what we can do together to bring more Thanks to those who have sent in their 2018 membership dues! If resources to these efforts and discuss how you haven’t, there’s still time. Your dues help CVA continue on these shared priorities intertwine. To learn Tassi Duffner into the future! more and register, please see www.highdivide.org. Join Terra Verde and the City of Dillon for the 2018 Earth Day At Red Rock Lakes National Wildlife Refuge, efforts to suppress numbers of Clean-up and Celebration on April 28th. Registration and clean-up cutthroat trout in Red Rock Creek has ended. Early season angling during the begins at 9am at Depot Park; music, food, and exhibits from 12- cutthroat spawning run is still allowed this spring but is catch and release only 3pm. for cutthroat and grayling. At Refuge request, Montana Fish Wildlife & Parks will submit regulation proposal to the State Fish and Wildlife Commission to: The next Road Use Meeting will be held on April 18th at 7pm at 1) Change the daily and possession limits for Red Rock Creek to the DNRC building in Dillon. The public is encouraged to attend! include no harvest of cutthroat trout and use of artificial lures only. 2) Close Elk Springs Creek to angling from May 15th to June 15th and Join the CVA and Beaverhead County for an Applicator’s allow use of artificial lures only. Training on April 24th at the Lima Fire Hall from 9am-4:30pm. 3) Close Widgeon and Culver Ponds from November 30th to April Lunch will be provided for those in attendance! 15th and allow use of artificial lures only. If you are interested in bear, mountain lion, and/or wolf These regulations will be re-evaluated following the 2020 angling season. This management and relocation area, FWP’s website shares standardizes regulations so all streams on the Refuge are open to angling year- information with the public via this link: http://fwp.mt.gov/ round, except closed May 15th to June 15th to protect incubating grayling eggs fishAndWildlife/livingWithWildlife/relocation/ from wading anglers. To preserve traditional ranching as a way of life in the Centennial Valley, and to maintain quality open space, wildlife habitat, water quality and wildlife migration corridors as they exist today for future generations. Project Updates (cont.) The Madison Valley Ranchlands Group hosted the 2nd annual Brucellosis/DSA Montana Fish, Wildlife and Parks and the Department of Livestock flew meeting February 22nd at the Headwaters Livestock Auction Building just north of brucellosis surveillance operations in the Tendoy Mountains and eastern Three Forks. Montana Department of Livestock Brucellosis Program Veterinarian Madison Valley in 2018. FWP sampled 100 elk in the Tendoys, outside of the DVM Eric Liska gave an overview of brucellosis to get everyone present up to Designated Surveillance Area (DSA), and found one elk that had been speed on the disease, then addressed current and new regulations for cattle that exposed to brucellosis (seropositive). This is the first time an elk has tested spend any time in the DSA. In the afternoon, Dr. Clayton Marlow, Animal & positive for exposure in the Tendoy range. Thirty elk were radio collared to Range Sciences Specialist, and Dr. Jeff Mosely Professor, Extension Range learn more about movement and understand how brucellosis may spread. Management Specialist, and Dr.Timothy DelCurto led discussions on wildlife/ Six elk tested positive in the Madison, with forty being fitted with collars. livestock interactions and challenges in southwest Montana. The 3rd Brucellosis/ Brucellosis is a bacterial disease that can result in the abortion or DSA meeting is planned for November 2018, as we transition it away from winter- birth of weak calves in cattle, bison, and elk. Brucellosis is spread primarily spring calving time. through contact with infected birth tissues or fluids. Ranches within the DSA are required to test their cattle herds for the disease. James “Newt” Perdue Dean Waltee completed a moose population trend survey in the Centennial Army Cutworm Moth Hi all! (HD334) on February 19th, with MFWP I have missed living in the Centennial Valley pilot Trevor Throop. Dean will be over the last year but am happy for the classifying moose until the first of May to opportunity to give a quick overview on what document the post-winter calf:adult I’ve been up to. I started a graduate project last ratio. If you observe moose during that spring studying an incredible phenomena period, please send a date, location, and involving grizzly bears and army cutworm moths on the highest peaks of classification as an adult or calf (born last Absaroka Mountains in Wyoming. Every summer millions of army spring) to Dean at [email protected]. cutworm moths migrate from agricultural areas throughout the Great Survey conditions were good, Plains and Intermountain West to the Rocky Mountains. These moths with complete and fresh snow cover, although not as deep as typical. Tracks feed on alpine flowers at night and aggregate by the millions in steep indicated that at least 6 moose moved onto typical winter range following a recent talus slopes during the day at 10,000ft measurable snowfall, suggesting that some moose might have remained Jason Wilmont to 13,000ft elevation. Grizzly bears key distributed off of typical winter range and were not observed. They also observed into the large aggregations of moths two small groups of elk remaining in the Centennial Mountains to the west of and can eat 50,000 moths a day which Lakeview, suggesting relatively mild winter conditions across the area. They observed 131 moose- compared to 162 last year and a long-term average (LTA) of is about 25,000 Calories! It is not 72. The observed calf:adult ratio was 32:100- compared to 35:100 last year and a uncommon to see dozens of bears LTA of 33:100. The current harvest opportunity is for 5 antlered and 6 antlerless foraging on one talus slope. moose.