Madeleine Lohman

Madeleine Lohman
University of Nevada, Reno | UNR · Department of Natural Resources and Environmental Science

BSc

About

10
Publications
568
Reads
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12
Citations
Introduction
I'm currently working on my Ph.D. research modeling spatiotemporal variation in waterfowl demographic rates using conditional autoregressive models in a Bayesian framework. I'm examining long-term shifts in demographic rates for different age and sex classes as they relate to environmental conditions. I'm also excited to be looking at how demographic rates among different age and sex classes relate to one another and the possible implications for waterfowl life-histories.
Additional affiliations
August 2019 - present
University of Nevada, Reno
Position
  • Research Assistant
August 2018 - August 2020
University of Nevada, Reno
Position
  • Laboratory Assistant
June 2017 - August 2019
University of Nevada, Reno
Position
  • Research Assistant
Education
August 2016 - May 2019
University of Nevada, Reno
Field of study
  • Wildlife Ecology and Conservation

Publications

Publications (10)
Article
Full-text available
Harvest of wild organisms is an important component of human culture, economy, and recreation, but can also put species at risk of extinction. Decisions that guide successful management actions therefore rely on the ability of researchers to link changes in demographic processes to the anthropogenic actions or environmental changes that underlie va...
Article
Full-text available
Sex ratios affect population dynamics and individual fitness, and changing sex ratios can be indicative of shifts in sex‐specific survival at different life stages. While climate and landscape changes alter sex ratios of wild bird populations, long‐term, landscape scale assessments of sex ratios are rare. Further, little work has been done to under...
Article
Full-text available
1. The management of sustainable harvest of animal populations is of great ecological and conservation importance. Development of formal quantitative tools to estimate and mitigate the impacts of harvest on animal populations has positively impacted conservation efforts. 2. The vast majority of existing harvest models, however, do not simultaneousl...
Preprint
Sex ratios affect population dynamics and individual fitness, and changing sex ratios can be indicative of shifts in sex-specific survival at different life stages. While climate- and landscape-change alter sex ratios of wild bird populations, long-term, landscape scale assessments of sex ratios are rare. Further, little work has been done to under...
Article
Full-text available
Heterogeneity in the intrinsic quality and nutritional condition of individuals affects reproductive success and consequently fitness. Black brant (Branta bernicla nigricans) are long-lived, migratory, specialist herbivores. Long migratory pathways and short summer breeding seasons constrain the time and energy available for reproduction, thus magn...
Preprint
Heterogeneity in the intrinsic quality and nutritional condition of individuals affects reproductive success and consequently fitness. Understanding differences in energy allocation towards survival and reproduction within and among years might help explain variability in individual fitness. Black brant (Branta bernicla nigricans) are long-lived, m...
Article
Full-text available
Maintenance of phenotypic heterogeneity in the face of strong selection is an important component of evolutionary ecology, as are the consequences of such heterogeneity. Organisms may experience diminishing returns of increased reproductive allocation as clutch or litter size increases, affecting current and residual reproductive success. Given exi...
Article
Full-text available
Changes in ecological conditions can induce changes in behavior and demography of wild organisms, which in turn may influence population dynamics. Black brant (Branta bernicla nigricans) nesting in colonies on the Yukon–Kuskokwim Delta (YKD) in western Alaska have declined substantially (~50%) since the turn of the century. Black brant are herbivor...

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Projects

Project (1)
Project
To examine spatiotemporal variation in waterfowl demography.