Files
Download Full Text (687 KB)
Date of Graduation
5-2025
Description
"The connection between mammalian behavior in national parks and human-driven environmental change is tenuous. National parks are often considered the last vestiges of natural space, yet they are created and maintained by humans. South Luangwa National Park (SLNP) within the southern East African Rift is a microcosm of this global conundrum and is also a region where stable isotope data is sparce. Understanding the mammalian diets of mammals in the SLNP via carbon and oxygen stable isotopes in teeth will provide a means of understanding variation in one aspect of mammal behavior that may be affected by changing animal-human relationships. Here, we present mammalian carbon and oxygen stable isotopes from enamel among large mammals including the hippopotamus, elephants, impala, and buffalo within South Luangwa National Park (n = 32 individuals). Based on carbon isotopes, elephants (Loxodonta africana) show evidence of more exclusive browsing than is common in regions like Mozambique. Buffalo (Syncerus caffer) are grazers, while impala (Aepyceros melampus) are mixed feeders, which is common across parks in Southern Africa. Hippopotamus (Hippopotamus amphibius) are classified as both grazers and mixed feeders. Oxygen isotopes in hippopotamus specimens are generally low but varies by more than 2%. These stable isotopes reveal animal interactions with the environment, but we will also interpret this ecological variation within the context of conservation practice and climate change. This ecological information has implications for human evolution, a discipline which relies heavily on isotope baselines from national parks, and conservation ecology.
Publication Date
2025
Document Type
Book
Degree Name
Bachelor of Science in Biology
Degree Level
Undergraduate
Department
Biological Sciences
Advisor/Mentor
Villasenor, Amelia
Disciplines
Life Sciences
Keywords
Natural Science
Citation
Osborne, J., & Villaseñor, A. (2025). Ecological Interactions of Large Mammals in Luangwa, Zambia. 2025 Research Poster Competition. Retrieved from https://scholarworks.uark.edu/hnrcsturpc25/10