Christian A. Hagen

Monitoring forest grouse in a changing world: methods, technology, and management

Lance B. McNew, Christian A. Hagen, Emmanuel Ménoni

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Megafire forces a declining prairie grouse into more marginal landscapes providing fine‐scale habitat

Nicholas J. Parker, Daniel S. Sullins, David A. Haukos, Kent A. Fricke et autres

Abstract Megafires (wildfire >10,000 ha) are increasing worldwide and pose a novel threat to wildlife in fragmented landscapes. Within the southern Great Plains, 70% of grasslands have been lost to conversion to row‐crop agriculture, energy development, and invasive woody species. Multiple contemporary …

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Greater sage‐grouse seasonal habitat associations: A review and considerations for interpretation and management applications

Gregory T. Wann, Ashley L. Whipple, Elizabeth K. Orning, Megan M. McLachlan et autres

Abstract Habitat features needed by wildlife can change in composition throughout the year, particularly in temperate ecosystems, leading to distinct seasonal spatial‐use patterns. Studies of species‐habitat associations therefore often focus on understanding relationships within discrete seasonal periods with common goals of prediction …

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Breeding Season Survival and Habitat Use of Scaled Quail in Southeastern New Mexico

Kiera L. Kauffman, David W. Londe, Craig A. Davis, Samuel D. Fuhlendorf et autres

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The impact of juniper removal on shrubs and understory vegetation and its implications for sagebrush dependent vertebrate herbivores

Kimberly A. Haab, Christian A. Hagen, Bryan A. Endress, Kate H. Yates et autres

The expansion of trees into previously grass- and shrub- dominated ecosystems is a global phenomenon threatening ecosystem integrity and function in encroached systems, including the North American sagebrush biome. This ecosystem is currently in peril, threatened in part by juniper (Juniperus sp.) …

Living on the edge: identifying demographic bottlenecks in an isolated sage‐grouse population

Chelsea E. Sink, Katie M. Dugger, Christian A. Hagen, John N. Vradenburg

The greater sage‐grouse ( Centrocercus urophasianus : hereafter sage‐grouse) population in Modoc County California is geographically isolated and contains a single lek (from 56 leks in the 1940s), despite significant efforts to increase the population through translocations and habitat improvement. Repeated wildfire …

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Microclimate and thermal refuge influences on sage-grouse brood habitat selection

Tyler D Dungannon, Christopher R. Anthony, Timothy S. Bowden, Christian A. Hagen

Wildlife space use is driven by three primary mechanisms, predator avoidance, foraging, and thermoregulation. The latter has largely been overlooked in wildlife research. Understanding how habitat use is influenced by thermoregulatory properties is a critical component to depicting species' ecology. Galliformes' (i.e., …

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Author response for "Living on the edge: identifying demographic bottlenecks in an isolated sage‐grouse population"

Chelsea E. Sink, Katie M. Dugger, Christian A. Hagen, John N. Vradenburg

Evaluating satellite‐transmitter backpack‐harness effects on greater sage‐grouse survival and device retention in the Great Basin

Carl G. Lundblad, Christopher R. Anthony, Tyler D Dungannon, Kimberly A. Haab et autres

Abstract Wildlife tracking studies have become ubiquitous in ecology and now provide previously unobtainable data regarding individual movement, vital rates, and population demographics. However, tracking devices can potentially reduce survival of study subjects, generating biases in the vital rates they seek to …

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Sprachlernberatung als Heldenreise: Ein Vorschlag für die Coaching-Praxis

Christof Gerhard Beer, Carmen Herrmann, Christian A. Hagen

Zusammenfassung Die potenzialorientierte Beratung von Schülerinnen und Schülern beim Fremdsprachenlernen gewinnt zunehmend an Bedeutung. Um (angehende) Lehrkräfte auf ihre Beratungsaufgabe gezielt vorzubereiten, stellen wir in diesem Beitrag die 5-Phasen-Sprachlernberatungs-Heldenreise als praxisorientierte, adaptive Strukturierungshilfe für den Coaching-Prozess vor. Dabei versteht sich die Lehrkraft …

Melded Integrated Population Models

Justin J. Van Ee, Christian A. Hagen, David C. Pavlacky, David A. Haukos et autres

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‘Dead birds flying': can north American rehabilitated raptors released into the wild mitigate anthropogenic mortality?

Christian A. Hagen, John M. Goodell, Brian A. Millsap, Guthrie S. Zimmerman

As the human footprint expands to meet societal energy needs, as do the impacts to wildlife. Raptors in particular are highly susceptible to anthropogenic caused mortality. Industry sectors are encouraged to offset these causes of mortality. Several options to mitigate these losses …

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