kittlitz’s (and marbled) murrelets
DESCRIPTION
Kittlitz’s (and Marbled) Murrelets. Glacier Bay National Park and Preserve. NPS Photo: Sergeant. Justification. Rare, pelagic seabird of AK, Russian Far East Rangewide declines 40-80% rangewide, at least since ~ 1990…earlier ? ESA Candidate, listing decision due in 2014 - PowerPoint PPT PresentationTRANSCRIPT
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Southeast Alaska NetworkInventory and Monitoring Program
Kittlitz’s (and Marbled) Murrelets
Glacier Bay National Park and Preserve
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Southeast Alaska NetworkInventory and Monitoring Program May 6, 2009
NPS Photo: Sergeant
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Justification
• Rare, pelagic seabird of AK, Russian Far East
• Rangewide declines– 40-80% rangewide, at least
since ~1990…earlier?• ESA Candidate, listing
decision due in 2014• GLBA is a major
population center
Southeast Alaska NetworkInventory and Monitoring Program
NPS Photo
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Justification
• GLBA jurisdiction over uplands, marine waters, outer coast to 3 miles
• Permitting authority for commercial, private party entries
• Administrative and research traffic
• If listed, what constitutes “take”?
Southeast Alaska NetworkInventory and Monitoring Program
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Objectives
• To monitor annual abundance of KIMU in Glacier Bay proper in July, with 80% power (at a=0.05) to detect a decline of 25% over 15 years
• To describe spatial variation in KIMU distribution in Glacier Bay proper
Southeast Alaska NetworkInventory and Monitoring Program
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Technical Approach• A spatially balanced, unequal sampling
probability, serially augmented panel design• Spatial balance: GRTS
– All the benefits of randomness while ensuring spatial balance• Unequal Sampling Probability
– Similar to stratification– Informed, but not determined, by past densities
• Panel design– emphasizes what we know, but allows us to capture
distribution shifts
Southeast Alaska NetworkInventory and Monitoring Program
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Technical Approach
• Tempered by constraints: 2 weeks, crew of 4, 1 vessel
• No-go areas, planning around park regs
• Early July, birds on the water
• 10 kts transect speedSoutheast Alaska NetworkInventory and Monitoring Program
NPS Photo: Moynahan
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Southeast Alaska NetworkInventory and Monitoring Program May 6, 2009
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Logistics and Budget
• Field work: 4 crew, 10 days early July• Analysis, reporting: 10 days each fall• Protocol development: $185K, FY08-11• Annual Supplies: $2K SEAN, $2K GLBA
(fuel) • Tech Assistance: $10K FY12• Shared vessel: R/V Fog Lark• Periodic contracting for 5-y reports
Southeast Alaska NetworkInventory and Monitoring Program
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What we’re learning
• Up-front investments in design are well worth it!– Field effort (km) down 79%, precision up 60%– Cheaper, more statistically sound, less exposure to
risk, lower fuel consumption, reduced presence• Power to detect trend is much more
sensitive (25% v. 50% over 15 y)
Southeast Alaska NetworkInventory and Monitoring Program
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What we’re learning
• GLBA much more important than we thought…
• Huge numbers of marbled murrelets• Annual variation in distribution• Upcoming opportunities to integrate
distribution with oceanographic data
Southeast Alaska NetworkInventory and Monitoring Program
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Southeast Alaska NetworkInventory and Monitoring Program
Program Delivery
Protocol Status:• All chapters, 10
of 12 SOPs drafted
• Peer-review in May 2012
• National Audubon, July 2012
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Southeast Alaska NetworkInventory and Monitoring Program
[email protected] 364.2621
NPS Photo: Moynahan