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| | Nature & Science » Biology Resources » Integrated Pest Management Manual (Site not responding. Last check: 2007-10-15) |
 | | From plague epidemics (the "Black Death" of Europe) to rat bites of inner- city children, from gnawing electrical wires in an attic to feeding on stored food in a warehouse, rats are a critical pest of humankind. |
 | | Rat sounds, droppings, burrows, urine stains, smudge marks, runways, tracks, gnawing damage, nests, food caches, pet excitement, and rat odors are all signs of rat activity. |
 | | Before a park manager can decide what combination of strategies would be best for a particular situation, he or she needs to determine where the rats are nesting and feeding, locate their travel routes, and determine the extent of the infestation. |
| www.nature.nps.gov /biology/ipm/manual/rats.htm (3118 words) |
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