Managing Montana’s Golden Eagles in a Landscape of Development: a Collaborative Approach

The Montana Golden Eagle Working Group, an active coalition of agency representatives and eagle experts, was convened in April 2011 to address information needs and management recommendations for Golden Eagles in the state. Current data indicates Golden Eagle populations may be declining across the western United States and stable or declining in Montana. New energy and subdivision development may exacerbate these population trends through direct mortality, indirect and direct habitat loss and alteration, and increased disturbance. However, we lack information that is necessary to evaluate population-level impacts of new development. In 2009, the U.S. Fish and Wildlife Service (USFWS) published a final rule authorizing limited issuance of permits to take Bald and Golden Eagles where the take is consistent with the goal of increasing or stable breeding populations, is associated with and not the purpose of an otherwise lawful activity, and cannot practicably be avoided despite the implementation of advanced conservation practices. Consequently, limited take of eagles may be authorized relative to energy development or other activities while managing for no net loss to the population. This means the USFWS must identify potential eagle mortality sources, the impact of potential mortality on the population, and impact avoidance, minimization, and compensatory mitigation strategies. The Golden Eagle working group is drafting a monitoring strategy and management recommendations for Golden Eagles in a landscape of development. Here we provide information on working group activities which are focused on allowing for continued development while simultaneously conserving one of Montana’s most charismatic birds

Montana’s Colonial Nesting Waterbird Survey

Wetlands are a dispersed but declining resource in Montana. They are considered a Tier 1 community (greatest conservation need) in Montana’s Comprehensive Fish and Wildlife Conservation Strategy and are of critical importance to breeding waterbirds. Of the 17 colonially-nesting waterbirds in the state, 12 are Montana Species of Concern. Despite the conservation ranking of waterbirds and their habitats, information on the distribution and abundance of these wetland obligates is limited. The Montana Bird Conservation Partnership is participating in the USDI Fish and Wildlife Service west-wide colonial nesting waterbird inventory to contribute to regional population estimates and meet state information needs. We are focusing on Species of Concern. We counted nests at 123 wetland sites across the state in 2009 and at 133 sites in 2010. Colony size ranged from 1-4833 pairs. Most colonies were relatively small (1-195 pairs), except Franklin’s Gulls and American White Pelicans. High water levels likely affected reproductive success in spring 2010. Additional survey work will be conducted in 2011. In addition to calculating estimates of population size, we plan to use these data, in conjunction with other work, to link waterbird populations to wetland condition for use in future conservation decisions and planning. Our work has particular relevance to predicted changes in timing and amount of precipitation associated with climate change, which will likely change wetland condition and distribution throughout the state

Thirty Years Of Wetland Conservation In Montana

In 1985 the Montana Legislature authorized the Department of Fish, Wildlife and Parks (FWP) to use funds from migratory bird hunting licenses “…for the protection, conservation, and development of wetlands in Montana”, thereby creating the Migratory Bird Wetland Program (a.k.a. State Duck Stamp Program).  Wetlands and their associated uplands provide critical nesting, foraging, brood-rearing, and migration habitat for waterfowl and other wetland-associated wildlife.  Wetlands also provide critical ecosystem functions important for our communities and wildlife, including water purification, flood control, and groundwater recharge.  FWP’s Migratory Bird Wetland Program is dedicated to conserving wetlands and associated uplands to benefit Montana’s wildlife, especially migratory birds, to enhance consumptive and non-consumptive recreational opportunities, and to maintain wetland systems for Montana’s citizens.  Since many of the opportunities were on private land, it was essential for FWP personnel to learn how best to work with farmers and ranchers to benefit their operations as well as wildlife and wetland values.  In addition to the partnership of private landowners, many other agencies and organizations have been partners in habitat projects.  The program has adapted to changing opportunities and conservation needs over time.  We will chronicle the past 30 years of program implementation, showcase successes, and discuss a philosophy for continued wetland conservation into the future

Conserving Montana’s Birds And Their Habitats Through Partnerships

The Montana Bird Conservation Partnership is a consortium of representatives from state, tribal, and federal agencies, non-governmental organizations, and individuals who are dedicated to conserving birds and their habitats in Montana. Our goals are to work collaboratively to keep common birds common and to conserve, protect and restore sensitive species and habitats. We work to recognize the social and economic value of birds to the people of Montana. We also use the best available science to identify conservation opportunities. Over 300 species of birds regularly breed, winter, or migrate through Montana. Of these, 82 are considered to have sensitive or at-risk populations. Montana’s birds are threatened by habitat loss stemming from changing land use practices and energy and subdivision development. Global climate change may exacerbate these threats. We will present current Montana Bird Conservation Partnership projects, our action plan, focal species initiatives, and examples of successful conservation-in-action projects. Find out how you and/ or your organization can get involved at the local or state level. Learn more about the most exciting and forward-thinking bird partnership in the region

Psychophysics with children: Investigating the effects of attentional lapses on threshold estimates

When assessing the perceptual abilities of children, researchers tend to use psychophysical techniques designed for use with adults. However, children’s poorer attentiveness might bias the threshold estimates obtained by these methods. Here, we obtained speed discrimination threshold estimates in 6- to 7-year-old children in UK Key Stage 1 (KS1), 7- to 9-year-old children in Key Stage 2 (KS2), and adults using three psychophysical procedures: QUEST, a 1-up 2-down Levitt staircase, and Method of Constant Stimuli (MCS). We estimated inattentiveness using responses to “easy” catch trials. As expected, children had higher threshold estimates and made more errors on catch trials than adults. Lower threshold estimates were obtained from psychometric functions fit to the data in the QUEST condition than the MCS and Levitt staircases, and the threshold estimates obtained when fitting a psychometric function to the QUEST data were also lower than when using the QUEST mode. This suggests that threshold estimates cannot be compared directly across methods. Differences between the procedures did not vary significantly with age group. Simulations indicated that inattentiveness biased threshold estimates particularly when threshold estimates were computed as the QUEST mode or the average of staircase reversals. In contrast, thresholds estimated by post-hoc psychometric function fitting were less biased by attentional lapses. Our results suggest that some psychophysical methods are more robust to attentiveness, which has important implications for assessing the perception of children and clinical groups

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

Combined searches for the production of supersymmetric top quark partners in proton-proton collisions at root s=13 TeV

A combination of searches for top squark pair production using proton-proton collision data at a center-of-mass energy of 13 TeV at the CERN LHC, corresponding to an integrated luminosity of 137 fb(-1) collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on themodel, the combined result excludes a top squarkmass up to 1325 GeV for amassless neutralino, and a neutralinomass up to 700 GeV for a top squarkmass of 1150 GeV. Top squarks with masses from 145 to 295 GeV, for neutralino masses from 0 to 100 GeV, with a mass difference between the top squark and the neutralino in a window of 30 GeV around the mass of the top quark, are excluded for the first time with CMS data. The results of theses searches are also interpreted in an alternative signal model of dark matter production via a spin-0 mediator in association with a top quark pair. Upper limits are set on the cross section for mediator particle masses of up to 420 GeV

MUSiC : a model-unspecific search for new physics in proton-proton collisions at root s=13TeV

Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1), are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.Peer reviewe

Development and validation of HERWIG 7 tunes from CMS underlying-event measurements

This paper presents new sets of parameters (“tunes”) for the underlying-event model of the HERWIG7 event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in HERWIG7, and are obtained from a fit to minimum-bias data collected by the CMS experiment at s=0.9, 7, and 13Te. The tunes are based on the NNPDF 3.1 next-to-next-to-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-next-to-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and for minimum-bias, inclusive jet, top quark pair, and Z and W boson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the dat

Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at root s=13 TeV

Peer reviewe