Rats!!!

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Rats!!!

• Alaska Maritime National Wildlife Refuge

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Rodents Continue to Spread Diseases
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Rat-borne diseases are thought to have taken
more human lives in the last ten centuries than
all the casualties from all wars and revolutions
ever fought Gratz 1984
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Rat Fleas Carry More Diseases
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Rats Cause Fires by Chewing Wires
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Wildlife Islands Are Vulnerable to Rats
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Rats take eggs chicks
adults
Cache of adult auklets
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Great Circle Route Brings Many Ships By Refuge
Islands
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Shipwrecks Can Introduce Rats
Selendang Ayu December 2005 On refuge land on
Unalaska Is.
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Rat Infested Shipwreck
Chil Bo San 6
Unalaska Island 1992
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Some Alaskan ports are rat infested
Dutch Harbor
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St. Paul St. George Have Rat Prevention
Programs
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1993 present 6 rats in a million trap
nights
Pribilof Islands
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St. Paul 6 - Rats Killed 2 - Sighting of
Fox w/ Rat 1 - Dead Rat Found 2 -
Infested Ship Evicted
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Integrated Pest Management

• Sanitation (garbage control, etc)
• Clean up cover (harborage for rodents) trash,
  clearing brush, grass
• Structural Design maintenance
• Proper control

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Rats Nest in Net Piles Need to be Shaken Out
Before Loaded
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Structural Modification Limits Rodents
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Store Foods Out Of Reach
Properly Control Garbage
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Control Rodent Numbers with Snap traps and poison
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Rodent Prevention Kits Given to Ships
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Harbor Poster
Newspaper Ad

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We Want To Hear From YouPlease fill out
questionnaire!

• Do you have rats/house mice?
• Are you worried about rats arriving on ships?
• Are you doing control?
• Do you need help?
• Comments/ideas?

Poppy Benson Terry Johnson Alaska Maritime
Refuge Alaska Sea Grant Marine Advisory
Program 907-226-4606 907-235-5643 Poppy_Benson_at_fw
s.gov rftlj_at_uaf.edu