Lake Mead National Recreation Area Monitoring and Evaluation of Sensitive Wildlife: Annual Progress Report, Period Ending September 30, 2007
Project 1. Relict Leopard Frog Monitoring, Management, and Research Diurnal and nocturnal surveys completed at all natural and translocation sites during the spring – the most striking finding was the lack of frogs observed at Rogers Springs and lower Blue Point despite repeated survey efforts. Reli...
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| Format: | Other/Unknown Material |
| Language: | English |
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Digital Scholarship@UNLV
2007
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| Online Access: | https://digitalscholarship.unlv.edu/pli_lake_mead_wildlife/9 https://digitalscholarship.unlv.edu/cgi/viewcontent.cgi?article=1008&context=pli_lake_mead_wildlife |
| Summary: | Project 1. Relict Leopard Frog Monitoring, Management, and Research Diurnal and nocturnal surveys completed at all natural and translocation sites during the spring – the most striking finding was the lack of frogs observed at Rogers Springs and lower Blue Point despite repeated survey efforts. Relict leopard frog annual translocation effort completed – a total of 1365 late stage tadpoles and 592 post-metamorphic frogs from the head-start facilities were released at existing translocation sites. Mark-recapture effort at Rogers Spring abandoned because of the lack of frogs; assistance provided for a mark-recapture study at upper Blue Point Spring. Potential translocation sites within Gold Butte assessed during site visits; one site targeted for potential attempt in 2008. Coordination and assistance provided to UNLV research efforts on habitat improvements at Blue Point and Rogers Springs, and with proposed US Fish and Wildlife Service (FWS) actions to construct a tadpole rearing facility and artificial habitat at the Willow Beach National Fish Hatchery. Relict Leopard Frog Conservation Team meeting held and support provided. Annual report for efforts in 2006 produced and accepted by National Park Service (NPS). Project 2. Bald Eagle Winter Monitoring and Evaluation Formal guidelines and field protocols document produced and accepted by NPS. Bald eagle count completed using new protocols. Totals were: 87 bald eagles (30 adults and 57 immature), one immature golden eagle, and four unidentified eagles. Annual report was produced and accepted by NPS. Project 3. Peregrine Falcon Monitoring and Evaluation Conducted 146 active and passive surveys at 39 peregrine falcon sites. Breeding behavior seen at 21 peregrine territories (13 along Lake Mead and 8 along Lake Mohave) and an additional 4 sites contained single adults. A total of 44 adults and 22 successful young were detected. A total of 36 exploratory survey sessions at 17 sites resulted in the detection of 4 previously undocumented sites (1 on Lake Mead and 3 on ... |
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