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  • Evaluation of Maternal Penning to Improve Calf Survival in the Chisana Caribou Herd
    Wildlife Monogr. (IF 3.333) Pub Date : 2019-09-12
    Layne G. Adams; Richard Farnell; Michelle P. Oakley; Thomas S. Jung; Lorne L. Larocque; Grant M. Lortie; Jamie Mclelland; Mason E. Reid; Gretchen H. Roffler; Don E. Russell

    Predation is a major limiting factor for most small sedentary caribou (Rangifer tarandus) populations, particularly those that are threatened or endangered across the southern extent of the species’ range. Thus, reducing predation impacts is often a management goal for improving the status of small caribou populations, and lethal predator removal is the primary approach that has been applied. Given

  • Dynamics, Persistence, and Genetic Management of the Endangered Florida Panther Population
    Wildlife Monogr. (IF 3.333) Pub Date : 2019-07-23
    Madelon van de Kerk; David P. Onorato; Jeffrey A. Hostetler; Benjamin M. Bolker; Madan K. Oli

    Abundant evidence supports the benefits accrued to the Florida panther (Puma concolor coryi) population via the genetic introgression project implemented in South Florida, USA, in 1995. Since then, genetic diversity has improved, the frequency of morphological and biomedical correlates of inbreeding depression have declined, and the population size has increased. Nevertheless, the panther population

  • Linking White‐Tailed Deer Density, Nutrition, and Vegetation in a Stochastic Environment
    Wildlife Monogr. (IF 3.333) Pub Date : 2019-07-22
    Charles A. DeYoung; Timothy E. Fulbright; David G. Hewitt; David B. Wester; Don A. Draeger

    Density‐dependent behavior underpins white‐tailed deer (Odocoileus virginianus) theory and management application in North America, but strength or frequency of the phenomenon has varied across the geographic range of the species. The modifying effect of stochastic environments and poor‐quality habitats on density‐dependent behavior has been recognized for ungulate populations around the world, including

  • Roles of maternal condition and predation in survival of juvenile Elk in Oregon
    Wildlife Monogr. (IF 3.333) Pub Date : 2019-03-13
    Bruce K. Johnson; Dewaine H. Jackson; Rachel C. Cook; Darren A. Clark; Priscilla K. Coe; John G. Cook; Spencer N. Rearden; Scott L. Findholt; James H. Noyes

    Understanding bottom‐up, top‐down, and abiotic factors along with interactions that may influence additive or compensatory effects of predation on ungulate population growth has become increasingly important as carnivore assemblages, land management policies, and climate variability change across western North America. Recruitment and population trends of elk (Cervus canadensis) have been downward

  • Modeling Elk Nutrition and Habitat Use in Western Oregon and Washington
    Wildlife Monogr. (IF 3.333) Pub Date : 2018-10-23
    Mary M. Rowland; Michael J. Wisdom; Ryan M. Nielson; John G. Cook; Rachel C. Cook; Bruce K. Johnson; Priscilla K. Coe; Jennifer M. Hafer; Bridgett J. Naylor; David J. Vales; Robert G. Anthony; Eric K. Cole; Chris D. Danilson; Ronald W. Davis; Frank Geyer; Scott Harris; Larry L. Irwin; Robert McCoy; Michael D. Pope; Kim Sager‐Fradkin; Martin Vavra

    Studies of habitat selection and use by wildlife, especially large herbivores, are foundational for understanding their ecology and management, especially if predictors of use represent habitat requirements that can be related to demography or fitness. Many ungulate species serve societal needs as game animals or subsistence foods, and also can affect native vegetation and agricultural crops because

  • Effects of power lines on habitat use and demography of greater sage‐grouse (Centrocercus urophasianus)
    Wildlife Monogr. (IF 3.333) Pub Date : 2018-10-23
    Daniel Gibson; Erik J. Blomberg; Michael T. Atamian; Shawn P. Espinosa; James S. Sedinger

    Energy development and its associated infrastructure, including power lines, may influence wildlife population dynamics through effects on survival, reproduction, and movements of individuals. These infrastructure impacts may be direct or indirect, the former occurring when development acts directly as an agent of mortality (e.g., collision) and the latter when impacts occur as a by‐product of other

  • Effects of control on the dynamics of an adjacent protected wolf population in interior Alaska
    Wildlife Monogr. (IF 3.333) Pub Date : 2017-06-26
    Joshua H. Schmidt; John W. Burch; Margaret C. MacCluskie

    Long‐term wolf (Canis lupus) research programs have provided many insights into wolf population dynamics. Understanding the mechanisms controlling responses of wolf populations to changes in density, environmental conditions, and human‐caused mortality are important as wolf management becomes increasingly intensive. Competition with humans for ungulate prey has led to large‐scale wolf control programs

  • Long‐term demography of the Northern Goshawk in a variable environment
    Wildlife Monogr. (IF 3.333) Pub Date : 2017-04-26
    Richard T. Reynolds; Jeffrey S. Lambert; Curtis H. Flather; Gary C. White; Benjamin J. Bird; L. Scott Baggett; Carrie Lambert; Shelley Bayard De Volo

    The Nearctic northern goshawk (Accipiter gentilis atricapillis) is a resident of conifer, broadleaf, and mixed forests from the boreal to the southwestern montane regions of North America. We report on a 20‐year mark‐recapture investigation (1991–2010) of the distribution and density of breeders, temporal and spatial variability in breeding, nestling sex ratios, local versus immigrant recruitment of

  • Biological and social outcomes of antler point restriction harvest regulations for white‐tailed deer
    Wildlife Monogr. (IF 3.333) Pub Date : 2017-01-23
    Bret D. Wallingford; Duane R. Diefenbach; Eric S. Long; Christopher S. Rosenberry; Gary L. Alt

    Selective harvest criteria, such as antler point restrictions (APRs), have been used to regulate harvest of male ungulates; however, comprehensive evaluation of the biological and social responses to this management strategy is lacking. In 2002, Pennsylvania adopted new APRs for white‐tailed deer (Odocoileus virginianus) that required, depending on wildlife management unit, ≥3 or ≥4 points on 1 antler

  • Nutritional ecology of elk during summer and autumn in the Pacific Northwest
    Wildlife Monogr. (IF 3.333) Pub Date : 2016-10-20
    John G. Cook; Rachel C. Cook; Ronald W. Davis; Larry L. Irwin

    Elk (Cervus elaphus) in the western United States are an economically and socially valuable wildlife species. They have featured species status for federal land management planning; hence, considerable modeling focused on habitat evaluation and land management planning has been undertaken for elk. The extent to which these and other habitat models for large ungulates account for influences of nutritional

  • Demographic rates and population viability of black bears in Louisiana
    Wildlife Monogr. (IF 3.333) Pub Date : 2016-06-15
    Jared S. Laufenberg; Joseph D. Clark; Michael J. Hooker; Carrie L. Lowe; Kaitlin C. O'Connell‐Goode; Jesse C. Troxler; Maria M. Davidson; Michael J. Chamberlain; Richard B. Chandler

    The Louisiana black bear (Ursus americanus luteolus) was reduced to a few small, fragmented, and isolated subpopulations in the Lower Mississippi Alluvial Valley by the mid‐twentieth century resulting from loss and fragmentation of habitat. In 1992, the United States Fish and Wildlife Service (USFWS) granted the Louisiana black bear threatened status under the United States Endangered Species Act of

  • Phylogeography of the bobwhite (Colinus) quails
    Wildlife Monogr. (IF 3.333) Pub Date : 2015-12-24
    Damon Williford; Randy W. Deyoung; Rodney L. Honeycutt; Leonard A. Brennan; Fidel Hernández

    The bobwhites (Colinus) consist of 3 grassland‐associated, allopatric species of New World quails (family Odontophoridae): the northern bobwhite (C. virginianus), distributed from the eastern United States to Guatemala; the black‐throated bobwhite (C. nigrogularis), which occurs in scattered localities in the Yucatán Peninsula, Nicaragua, and Honduras; and the crested bobwhite (C. cristatus), whose

  • Demographic responses of piping plovers to habitat creation on the Missouri river
    Wildlife Monogr. (IF 3.333) Pub Date : 2015-09-17
    Daniel H. Catlin; James D. Fraser; Joy H. Felio

    The piping plover (Charadrius melodus) was listed under the United States Endangered Species Act (ESA) because of habitat loss and excessive predation. The Missouri River provides important habitat for the Great Plains population of the species, some of which nest and forage on river sandbars deposited naturally during high river flows. The United States Army Corps of Engineers (USACE) operates a series

  • Spatial and temporal structure of a mesocarnivore guild in midwestern north America
    Wildlife Monogr. (IF 3.333) Pub Date : 2015-04-27
    Damon B. Lesmeister; Clayton K. Nielsen; Eric M. Schauber; Eric C. Hellgren

    Carnivore guilds play a vital role in ecological communities by cascading trophic effects, energy and nutrient transfer, and stabilizing or destabilizing food webs. Consequently, the structure of carnivore guilds can be critical to ecosystem patterns. Body size is a crucial influence on intraguild interactions, because it affects access to prey resources, effectiveness in scramble competition, and

  • Habitat prioritization across large landscapes, multiple seasons, and novel areas: An example using greater sage‐grouse in Wyoming
    Wildlife Monogr. (IF 3.333) Pub Date : 2014-09-22
    Bradley C. Fedy; Kevin E. Doherty; Cameron L. Aldridge; Micheal O'Donnell; Jeffrey L. Beck; Bryan Bedrosian; David Gummer; Matthew J. Holloran; Gregory D. Johnson; Nicholas W. Kaczor; Christopher P. Kirol; Cheryl A. Mandich; David Marshall; Gwyn Mckee; Chad Olson; Aaron C. Pratt; Christopher C. Swanson; Brett L. Walker

    Animal habitat selection is an important and expansive area of research in ecology. In particular, the study of habitat selection is critical in habitat prioritization efforts for species of conservation concern. Landscape planning for species is happening at ever‐increasing extents because of the appreciation for the role of landscape‐scale patterns in species persistence coupled to improved datasets

  • Spring migration ecology of the mid‐continent sandhill crane population with an emphasis on use of the Central Platte River Valley, Nebraska
    Wildlife Monogr. (IF 3.333) Pub Date : 2014-08-13
    Gary L. Krapu; David A. Brandt; Paul J. Kinzel; Aaron T. Pearse

    We conducted a 10‐year study (1998–2007) of the Mid‐Continent Population (MCP) of sandhill cranes (Grus canadensis) to identify spring‐migration corridors, locations of major stopovers, and migration chronology by crane breeding affiliation (western Alaska–Siberia [WA–S], northern Canada–Nunavut [NC–N], west‐central Canada–Alaska [WC–A], and east‐central Canada–Minnesota [EC–M]). In the Central Platte

  • Variation in mallard vital rates in Canadian Aspen Parklands: The Prairie Habitat Joint Venture assessment
    Wildlife Monogr. (IF 3.333) Pub Date : 2014-06-26
    David W. Howerter; Michael G. Anderson; James H. Devries; Brian L. Joynt; Llwellyn M. Armstrong; Robert B. Emery; Todd W. Arnold

    The Prairie Habitat Joint Venture (PHJV) delivers conservation programs for the Canadian portion of the Prairie Pothole Region under the North American Waterfowl Management Plan. The PHJV Assessment was designed to evaluate biological assumptions and effectiveness of PHJV conservation activities. Our objectives were to 1) test whether waterfowl reproductive success increased in response to the full

  • Influences of habitat composition, plant phenology, and population density on autumn indices of body condition in a northern white‐tailed deer population
    Wildlife Monogr. (IF 3.333) Pub Date : 2014-06-24
    Anouk Simard; Jean Huot; Sonia De Bellefeuille; Steeve D. Côté

    Body condition has a strong influence on reproduction and survival. Consequently, understanding spatiotemporal variation in body condition may help identify processes that determine life history, and thus demography. The effect of environmental variables on individuals' body condition, although widely documented, is generally achieved by investigating habitat, plant phenology, or density separately

  • Life‐history characteristics of mule deer: Effects of nutrition in a variable environment
    Wildlife Monogr. (IF 3.333) Pub Date : 2014-04-01
    Kevin L. Monteith; Vernon C. Bleich; Thomas R. Stephenson; Becky M. Pierce; Mary M. Conner; John G. Kie; R. Terry Bowyer

    Vital rates of large herbivores normally respond to increased resource limitation by following a progressive sequence of effects on life‐history characteristics from survival of young, age at first reproduction, reproduction of adults, to adult survival. Expected changes in life‐history characteristics, however, should operate through changes in nutritional condition, which is the integrator of nutritional

  • Competitive interactions and resource partitioning between northern spotted owls and barred owls in western Oregon
    Wildlife Monogr. (IF 3.333) Pub Date : 2014-02-24
    J. David Wiens; Robert G. Anthony; Eric D. Forsman

    The federally threatened northern spotted owl (Strix occidentalis caurina) is the focus of intensive conservation efforts that have led to much forested land being reserved as habitat for the owl and associated wildlife species throughout the Pacific Northwest of the United States. Recently, however, a relatively new threat to spotted owls has emerged in the form of an invasive competitor: the congeneric

  • Regional and seasonal patterns of nutritional condition and reproduction in elk
    Wildlife Monogr. (IF 3.333) Pub Date : 2013-10-28
    Rachel C. Cook; John G. Cook; David J. Vales; Bruce K. Johnson; Scott M. Mccorquodale; Lisa A. Shipley; Robert A. Riggs; Larry L. Irwin; Shannon L. Murphie; Bryan L. Murphie; Kathryn A. Schoenecker; Frank Geyer; P. Briggs Hall; Rocky D. Spencer; Dave A. Immell; Dewaine H. Jackson; Brett L. Tiller; Patrick J. Miller; Lowell Schmitz

    Demographic data show many populations of Rocky Mountain (Cervus elaphus nelsoni) and Roosevelt (Cervus elaphus roosevelti) elk have been declining over the last few decades. Recent work suggests that forage quality and associated animal nutritional condition, particularly in late summer and early autumn, influence reproduction and survival in elk. Therefore, we estimated seasonal nutritional condition

  • Effects of harvest, culture, and climate on trends in size of horn‐like structures in trophy ungulates
    Wildlife Monogr. (IF 3.333) Pub Date : 2013-01-28
    Kevin L. Monteith; Ryan A. Long; Vernon C. Bleich; James R. Heffelfinger; Paul R. Krausman; R. Terry Bowyer

    Hunting remains the cornerstone of the North American model of wildlife conservation and management. Nevertheless, research has indicated the potential for hunting to adversely influence size of horn‐like structures of some ungulates. In polygynous ungulates, mating success of males is strongly correlated with body size and size of horn‐like structures; consequently, sexual selection has favored the

  • Population ecology of breeding Pacific common eiders on the Yukon‐Kuskokwim Delta, Alaska
    Wildlife Monogr. (IF 3.333) Pub Date : 2012-10-24
    Heather M. Wilson; Paul L. Flint; Abby N. Powell; J. Barry Grand; Christine L. Moran

    Populations of Pacific common eiders (Somateria mollissima v‐nigrum) on the Yukon‐Kuskokwim Delta (YKD) in western Alaska declined by 50–90% from 1957 to 1992 and then stabilized at reduced numbers from the early 1990s to the present. We investigated the underlying processes affecting their population dynamics by collection and analysis of demographic data from Pacific common eiders at 3 sites on the

  • Short‐Term Impacts of a 4‐Lane Highway on American Black Bears in Eastern North Carolina
    Wildlife Monogr. (IF 3.333) Pub Date : 2012-04-19
    Frank T. Van Manen; Matthew F. Mccollister; Jeremy M. Nicholson; Laura M. Thompson; Jason L. Kindall; Mark D. Jones

    Among numerous anthropogenic impacts on terrestrial landscapes, expanding transportation networks represent one of the primary challenges to wildlife conservation worldwide. Larger mammals may be particularly vulnerable because of typically low densities, low reproductive rates, and extensive movements. Although numerous studies have been conducted to document impacts of road networks on wildlife,

  • Population fragmentation and inter‐ecosystem movements of grizzly bears in western Canada and the northern United States
    Wildlife Monogr. (IF 3.333) Pub Date : 2011-12-20
    Michael F. Proctor; David Paetkau; Bruce N. Mclellan; Gordon B. Stenhouse; Katherine C. Kendall; Richard D. Mace; Wayne F. Kasworm; Christopher Servheen; Cori L. Lausen; Michael L. Gibeau; Wayne L. Wakkinen; Mark A. Haroldson; Garth Mowat; Clayton D. Apps; Lana M. Ciarniello; Robert M. R. Barclay; Mark S. Boyce; Charles C. Schwartz; Curtis Strobeck

    Population fragmentation compromises population viability, reduces a species ability to respond to climate change, and ultimately may reduce biodiversity. We studied the current state and potential causes of fragmentation in grizzly bears over approximately 1,000,000 km2 of western Canada, the northern United States (US), and southeast Alaska. We compiled much of our data from projects undertaken with

  • Harvest, survival, and abundance of midcontinent lesser snow geese relative to population reduction efforts
    Wildlife Monogr. (IF 3.333) Pub Date : 2011-10-20
    Ray T. Alisauskas; Robert F. Rockwell; Kevin W. Dufour; Evan G. Cooch; Guthrie Zimmerman; Kiel L. Drake; James O. Leafloor; Timothy J. Moser; Eric T. Reed

    We assessed the effectiveness of an extensive and unprecedented wildlife reduction effort directed at a wide‐ranging migratory population of geese. Population reduction efforts that targeted several populations of light geese (greater snow geese [Chen caerulescens atlantica], lesser snow geese [C. c. caerulescens], and Ross's geese [C. rossii]) began in 1999 in central and eastern North America. Such

  • Demographic response of mule deer to experimental reduction of coyotes and mountain lions in southeastern Idaho
    Wildlife Monogr. (IF 3.333) Pub Date : 2011-08-02
    Mark A. Hurley; James W. Unsworth; Peter Zager; Mark Hebblewhite; Edward O. Garton; Debra M. Montgomery; John R. Skalski; Craig L. Maycock

    Manipulating predator populations is often posed as a solution to depressed ungulate populations. However, predator–prey dynamics are complex and the effect on prey populations is often an interaction of predator life history, climate, prey density, and habitat quality. The effect of predator removal on ungulate and, more specifically, mule deer (Odocoileus hemionus) populations has not been adequately

  • Response of red‐cockaded woodpeckers to military training operations
    Wildlife Monogr. (IF 3.333) Pub Date : 2011-07-05
    David K. Delaney; Larry L. Pater; Lawrence D. Carlile; Eric W. Spadgenske; Timothy A. Beaty; Robert H. Melton

    Military lands are a valuable resource in recovery of threatened, endangered, and at‐risk species worldwide and have the highest density of threatened and endangered species of all major land management agencies in the United States. Many red‐cockaded woodpeckers (Picoides borealis) that reside on federal lands occur on 15 military installations in the southeastern United States. This close association

  • Interactive effects of fire and nonnative plants on small mammals in Grasslands
    Wildlife Monogr. (IF 3.333) Pub Date : 2011-05-26
    Andrea R. Litt; Robert J. Steidl

    Invasions by nonnative plants have changed the structure of many terrestrial ecosystems and altered important ecological processes such as fire, the dominant driver in grassland ecosystems. Reestablishing fire has been proposed as a mechanism to restore dominance of native plants in grasslands invaded by nonnative plants, yet fire may function differently in these altered systems, potentially affecting

  • Geographic distribution of the mid‐continent population of sandhill cranes and related management applications
    Wildlife Monogr. (IF 3.333) Pub Date : 2011-04-20
    Gary L. Krapu; David A. Brandt; Kenneth L. Jones; Douglas H. Johnson

    The Mid‐continent Population (MCP) of sandhill cranes (Grus canadensis) is widely hunted in North America and is separated into the Gulf Coast Subpopulation and Western Subpopulation for management purposes. Effective harvest management of the MCP requires detailed knowledge of breeding distribution of subspecies and subpopulations, chronology of their use of fall staging areas and wintering grounds

  • Effect of Enhanced Nutrition on Mule Deer Population Rate of Change
    Wildlife Monogr. (IF 3.333) Pub Date : 2010-12-13

    Concerns over declining mule deer (Odocoileus hemionus) populations during the 1990s prompted research efforts to identify and understand key limiting factors of deer. Similar to past deer declines, a top priority of state wildlife agencies was to evaluate the relative importance of habitat and predation. We therefore evaluated the effect of enhanced nutrition of deer during winter and spring on fecundity

  • Nesting Density and Reproductive Success of Piping Plovers in Response to Storm‐ and Human‐Created Habitat Changes
    Wildlife Monogr. (IF 3.333) Pub Date : 2010-12-13

    The threatened population of Atlantic Coast piping plovers (Charadrius melodus) has increased under intensive management of predation and disturbance. However, the relative importance of habitat quality, nest predation, and chick predation in population dynamics and reproductive success of this species are poorly understood. We examined effects of breeding‐habitat alterations, predation, and breeding

  • Population Dynamics of Spotted Owls in the Sierra Nevada, California
    Wildlife Monogr. (IF 3.333) Pub Date : 2010-12-13
    Jennifer A. Blakesley; Mark E. Seamans; Mary M. Conner; Alan B. Franklin; Gary C. White; R. J. Gutiérrez; James E. Hines; James D. Nichols; Thomas E. Munton; Daniel W. H. Shaw; John J. Keane; George N. Steger; Trent L. Mcdonald

    ABSTRACT The California spotted owl (Strix occidentalis occidentalis) is the only spotted owl subspecies not listed as threatened or endangered under the United States Endangered Species Act despite petitions to list it as threatened. We conducted a meta‐analysis of population data for 4 populations in the southem Cascades and Sierra Nevada, California, USA, from 1990 to 2005 to assist a listing evaluation

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