Institution: Smithsonian Conservation Biology Institute
Department: Migratory Bird Center
National Zoological Park MRC 5503
Washington, DC 200013-7012
Department: Migratory Bird Center
National Zoological Park MRC 5503
Washington, DC 200013-7012
Hubbard Brook Role: Post-doctoral Researcher
Advisor: Scott Sillett & Peter Marra
Advisor: Scott Sillett & Peter Marra
Research Interests
In my research I integrate field observations, sophisticated tracking technology, advanced statistical modeling and isotope ecology to address components of the following question, how does movement and behavior shape individual, population and community ecology ? Identifying how different phases of the annual cycle interact to shape individual-, population- and community dynamics, is needed to understand how they respond to global change. Revealing the mechanisms underlying wildlife responses to a changing environment requires identifying when and where populations are limited and where they face the greatest threats. I use multi-faceted approaches to identify where migratory individuals and populations are throughout the year to determine how conditions experienced during the annual cycle influence life-history and demography.
Hubbard Brook Publications by this Author
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https://hubbardbrook.org/wp-content/plugins/zotpress/
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Hallworth, M. T., Sirén, A. P. K., DeLuca, W. V., Duclos, T. R., McFarland, K. P., Hill, J. M., Rimmer, C. C., & Morelli, T. L. (2024). Boom and bust: the effects of masting on seed predator range dynamics and trophic cascades. Diversity and Distributions, n/a(n/a), e13861. https://doi.org/10.1111/ddi.13861
Lewis, W. B., Cooper, R. J., Hallworth, M. T., Brunner, A. R., & Sillett, T. S. (2023). Light-level geolocation reveals moderate levels of migratory connectivity for declining and stable populations of Black-throated Blue Warblers (Setophaga caerulescens). Avian Conservation and Ecology, 18(2). https://doi.org/10.5751/ACE-02526-180212
Lewis, W. B., Cooper, R. J., Chandler, R. B., Chitwood, R. W., Cline, M. H., Hallworth, M. T., Hatt, J. L., Hepinstall-Cymerman, J., Kaiser, S. A., Rodenhouse, N. L., Sillett, T. S., Stodola, K. W., Webster, M. S., & Holmes, R. T. (2023). Climate-mediated population dynamics of a migratory songbird differ between the trailing edge and range core. Ecological Monographs, 93(1), e1559. https://doi.org/10.1002/ecm.1559
Doser, J. W., Leuenberger, W., Sillett, T. S., Hallworth, M. T., & Zipkin, E. F. (2022). Integrated community occupancy models: A framework to assess occurrence and biodiversity dynamics using multiple data sources. Methods in Ecology and Evolution, 13(4), 919–932. https://doi.org/10.1111/2041-210X.13811
Germain, R. R., Hallworth, M. T., Kaiser, S. A., Sillett, T. S., & Webster, M. S. (2020). Variance in within-pair reproductive success drives the opportunity for sexual selection annually and over the lifetimes of males in a multi-brooded songbird. bioRxiv, 2020.03.03.974790. https://doi.org/10.1101/2020.03.03.974790
Van Tatenhove, A., Filiberti, E., Sillett, T. S., Rodenhouse, N., & Hallworth, M. (2019). Climate-Related Distribution Shifts of Migratory Songbirds and Sciurids in the White Mountain National Forest. Forests, 10(2), 84. https://doi.org/10.3390/f10020084
Hallworth, M. T., & Marra, P. P. (2015). Miniaturized GPS Tags Identify Non-breeding Territories of a Small Breeding Migratory Songbird. Scientific Reports, 5. (HBR.2015-13). https://doi.org/10.1038/srep11069
Hallworth, michael. (2014). The influence of migratory connectivity and seasonal interactions on individual- and population-level dynamics of a long distance migratory songbird [PhD Thesis]. George Mason University. (HBR.2014-55).
Hallworth, M. T., Studds, C. E., Scott Sillett, T., & Marra, P. P. (2013). Do Archival Light-Level Geolocators and Stable Hydrogen Isotopes Provide Comparable Estimates of Breeding-Ground Origin? The Auk, 130(2), 273–282. (HBR.2013-33). https://doi.org/10.1525/auk.2013.13037