Monitoring aquatic amphibians and invasive species in the Mediterranean Coast Network, 2015 and 2016 project report: Santa Monica Mountains National Recreation Area
Delaney KS and Riley SP. 2017. Monitoring aquatic amphibians and invasive species in the Mediterranean Coast Network, 2015 and 2016 project report: Santa Monica Mountains National Recreation Area. Natural Resource Report. NPS/MEDN/NRR—2017/1573. National Park Service. Fort Collins, Colorado
Santa Monica Mountains National Recreation Area, a highly fragmented urban national park, is home to five native stream-breeding amphibians. The location of these species and their abundances are related to the amount of urbanization in the watersheds in which they live. Consistent water inputs from urban run-off into streams assure that non-native invasive species persist and thrive in those streams. The objectives of our long-term monitoring program are to 1) determine the status and long-term trends in abundance indices and percent area occupied by juvenile and adult aquatic amphibians in streams during the reproductive season, 2) determine the status and long-term trends in occupancy and abundance indices of non-native species, and 3) characterize the relationship between urbanization, climate, non-native species and the occupancy and abundance indices of native aquatic amphibians. This report summarizes stream survey data collected during 2015 and 2016. We present single-season occupancy and detectability estimates, naïve occupancy, and abundance data.
- Type
- Published Report
- Authors
- Delaney, Kathleen; Riley, Seth
- Date of Issue
- 2017-12
- Publisher
- National Park Service
- Units
- MEDN , NRSS , SAMO
- Keywords
- Aquatic Herpetofauna Monitor