Research

Tropical ecosystems regulate global climate, act as carbon sinks, and contain some of the highest levels of biodiversity in the world. Yet, they are also among the most threatened ecosystems on the planet. Thus, knowledge of their evolution and response to changing conditions is of critical importance.

Large mammals provide an interesting angle through which to evaluate changing tropical ecosystems, as they have unique top-down effects and can directly moderate ecosystem services, species diversity and abundance, and amount of suitable habitat for other organisms. My research combines techniques from conservation biology, computer modeling, landscape ecology, stable isotope geochemistry, and movement ecology to understand how large mammals access and utilize their environments and how aspects of their biology, including diet and movement, vary in fragmented and agricultural ecosystems. Analyzing these large mammal habitat use patterns provides information on how ecosystems may be altered in the future in response to anthropogenic alteration.

Please click on the links below to learn more about specific projects

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Habitat Use Patterns

Modeling habitat-use patterns as conservation proxies

Large Mammal Diet

Assessing aspects of large mammal diet in response to changing environmental conditions

Large Mammal Movement

Assessing aspects of large mammal movement in response to land use change

Recent Publications

Published

In preparation

  • Jorge, M., Bradham, J., Oshima, J., Ribeiro, M., and Keuroghlian, A. in prep. Well-connected patches of forest still needed for a highly mobile social ungulate in Neotropical agricultural lands. To be subitted to the Brazilian Journal of Nature Conservation.

  • Bradham, J., Yip, C., Jorge, M., Gilligan, J., Oshima, J., Keuroghlian, A., and Ribeiro, M. in prep. Linking individual-based modeling and high-resolution animal movement data to evaluate habitat use in fragmented ecosystems: a case study in central Brazil. To be submitted to Landscape Ecology.

  • Bradham, J., Maeterns, T., Jorge, M., and Keuroghlian, A. in prep. Ecosystem consequences of altered movement and habitat use patterns from a Neotropical ungulate. To be submitted to Conservation Biology.

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