Sarı A., Epps C.(Yürütücü), Aiello C.(Yürütücü)
Diğer Ülkelerden Üniversiteler Tarafından Desteklenmiş Proje, 2019 - 2022
This project aims to determine the importance of exiting underpass structures in facilitating movement of desert bighorn sheep under major interstate highways that restrict herd connectivity and gene flow. Populations of desert bighorn sheep function as a metapopulation in Southern California, and movement between herds plays a critical role in the species’ ecology and management. With help from our collaborators, we maintain 11 trail camera sites at highway underpasses that initially totaled 42 trail cameras. Local CDFW technicians check all cameras, document information on a standard form, and transfer all camera data to project members at OSU. We then organize and maintain the camera dataset for long-term storage and analysis. Using the camera check datasheets and the photos and videos stored on Box, we create a series of datasets that describe: 1) time periods that each camera was active, 2) observations of desert bighorn sheep, 3) observations of other mammals, birds, or reptiles. If adequate observations of bighorn sheep are recorded during camera monitoring, we will analyze the dataset to assess patterns of underpass use relative to highway traffic patterns and other environmental variables. Our goal is to determine whether underpasses allow sufficient bighorn movement, can be modified to allow sufficient movement, or must be supplemented with additional structures to reach to targeted rate of movement between bighorn sheep populations.
Project Web Page