Field guide norway rat

  1. NORWAY RAT FIELD GUIDE
    Front foot NUMBER-toed
    Front foot 4-toed
  2. NORWAY RAT FIELD GUIDE
    hind print with NUMBER toes.
    hind print with 5 toes.
  3. NORWAY RAT FIELD GUIDE
    Consistently follow
    same paths, usually along walls, stacked merchandise, etc.
  4. NORWAY RAT FIELD GUIDE
    preferred foods
    meat, fish, and cereal (dry dog food a favorite)
  5. NORWAY RAT FIELD GUIDE
    Norway rats reach sexual maturity in NUMBER months.
    2-5 months.
  6. NORWAY RAT FIELD GUIDE
    Pregnancy lasts an average of DAYS
    23 days (range 21-25).
  7. NORWAY RAT FIELD GUIDE
    reach sexual maturity at WEEKS
    8-12 weeks.
  8. NORWAY RAT FIELD GUIDE
    The average number of litters is PER YEAR
    3-6 per year (range 3-12), each containing an average of 7-8 young (range 4-22)
  9. NORWAY RAT FIELD GUIDE
    Adults live an average of MONTHS TO MONTHS
    5-12 months in towns and cities, but much longer in captivity.
  10. NORWAY RAT FIELD GUIDE
    They have rather poor
    vision and are color blind, but their senses of hearing, smell, touch, and taste are keenly developed.
  11. NORWAY RAT FIELD GUIDE
    Touch is via their
    vibrissae or long whiskers.
  12. NORWAY RAT FIELD GUIDE
    They are good
    runners, climbers, jumpers, and swimmers (documented record is 1,300 ft or 400 m across open ocean).
  13. NORWAY RAT FIELD GUIDE
    A Norway rat requires OZ of food and 1/2-1 oz (15-30 ml) of water each day, with the water coming from a nonfood source.
    3/4-1 oz (21-28 g) of food
  14. NORWAY RAT FIELD GUIDE
    A Norway rat requires 3/4-1 oz (21-28 g) of food of food and OZ of water each day, with the water coming from a nonfood source.
    1/2-1 oz (15-30 ml) of water each day
  15. NORWAY RAT FIELD GUIDE
    the disease most commonly thought of involving rats (roof rat primarily) is plague which is transmitted via
    fleas leaving an infected rat and attacking man.
  16. NORWAY RAT FIELD GUIDE
    Other transmittable diseases include
    murine typhus via fleas (also possibly via droppings and urine), infectious jaundice/leptospirosis/Weil’s Disease via urine in water or food, rat-bite fever via bites, cowpox virus (CPXV) via direct contact, trichinosis via undercooked pork, and food poisoning or Salmonellosis via droppings.
  17. NORWAY RAT FIELD GUIDE
    Another disease is _ mite dermatitis that is caused by these mites when they feed on humans.
    tropical rat
  18. NORWAY RAT FIELD GUIDE
    Rats are primarily
    nocturnal in habit and they are cautious.
  19. NORWAY RAT FIELD GUIDE
    Although they constantly explore
    their surroundings, they shy away from new objects and changes.
  20. NORWAY RAT FIELD GUIDE
    Outdoors, Norway rats prefer to nest in
    burrows in the soil along railroad embankments, stream/river banks, piles of rubbish, under concrete slabs, etc.
  21. NORWAY RAT FIELD GUIDE
    The burrow will have at least 1 _ hole and at least 1 bolt-hole or emergency exit which is often hidden under grass, debris, etc.
    Entrance
  22. NORWAY RAT FIELD GUIDE
    The burrow will have at least 1 entrance hole and at least 1 bolt-hole or _ which is often hidden under grass, debris, etc.
    Emergency exit
  23. NORWAY RAT FIELD GUIDE
    The burrow will have at least 1 entrance hole and at least 1 bolt-hole or emergency exit which is often
    hidden under grass, debris, etc.
  24. NORWAY RAT FIELD GUIDE
    These are social animals and often many burrows will be
    located within a given area.
  25. NORWAY RAT FIELD GUIDE
    An opening of greater than INCH is required for entry into buildings.
    1/2" (12 mm)
  26. NORWAY RAT FIELD GUIDE
    Indoors, Norway rats usually nest in
    basements and the lower portions of buildings in piles of debris or merchandise as long as it is not disturbed.
  27. NORWAY RAT FIELD GUIDE
    Although Norway rats prefer the ground or lower levels of buildings and sewers, on occasion they may be found in
    attics, on roofs, and in other high places.
  28. NORWAY RAT FIELD GUIDE
    Norway rats are opportunistic feeders and although they will eat practically anything, they prefer
    meat, fish, and cereal.
  29. NORWAY RAT FIELD GUIDE
    If the food material eaten proves to be disagreeable, they are quick to develop
    food/bait shyness.
  30. NORWAY RAT FIELD GUIDE
    Once they find an acceptable/preferred food, rats tend to eat their fill in
    one or two visits and will return time after time;
  31. NORWAY RAT FIELD GUIDE
    if the area of food is constantly disturbed, they may require several
    return visits to get their fill.
  32. NORWAY RAT FIELD GUIDE
    They almost always require a nonfood or separate
    source of water.
  33. NORWAY RAT FIELD GUIDE
    Norway rats will travel about 100-150 ft (30.5-45.7 m) from their harborage for food and/or water; in urban areas the average home range is about FEET TO FEET
    25-100 ft (8-30.5 m).
  34. NORWAY RAT FIELD GUIDE
    They will gnaw through almost anything to obtain
    food and/or water, even plastic or lead pipes.
  35. NORWAY RAT FIELD GUIDE
    Norway rats typically forage and feed at
    dusk and again prior to dawn, although they will forage several times each night and during the daytime.
  36. NORWAY RAT FIELD GUIDE
    If the area is quiet and undisturbed, daytime activity may or may not indicate
    an overpopulation.
  37. NORWAY RAT FIELD GUIDE
    They do carry off food to
    less disturbed areas for consumption, or to hoard.
  38. NORWAY RAT FIELD GUIDE
    Once established, Norway rats tend to follow the
    same route or pathway between their harborage and food and/or water sources.
  39. NORWAY RAT FIELD GUIDE
    Rats defecate somewhat indiscriminately within
    their territories but mostly where they feed.
  40. NORWAY RAT FIELD GUIDE
    Rat droppings serve as an indication of
    their presence and where control efforts should be concentrated.
  41. NORWAY RAT FIELD GUIDE
    Rats are
    gluttons.
  42. NORWAY RAT FIELD GUIDE
    Place sufficient bait in each bait station for at least
    1 meal (stop-feed baits), 2 meals (acute/single-feed baits), or more (chronic/multi-feed baits)
  43. NORWAY RAT FIELD GUIDE
    Once a preferred bait is found, they
    utilize this bait until feeding stops.
  44. NORWAY RAT FIELD GUIDE
    Prebaiting with unset snap traps is advisible, and secure to the trigger with
    unsected/unflavored dental floss.
  45. NORWAY RAT FIELD GUIDE
    Rats usually have a water source other than their food if their food has a
    low moisture content.
  46. NORWAY RAT FIELD GUIDE
    Liquid baits are particularly effective when their normal water source can be
    reduced or eliminated.
  47. NORWAY RAT FIELD GUIDE
    Droppings will indicate the
    best placement sites.
  48. NORWAY RAT FIELD GUIDE
    Outdoors, gassing (fumigating) rat burrows is
    extremely effective.
  49. NORWAY RAT FIELD GUIDE
    Follow label directions and do not gas burrows within FEET
    15 ft (4.6 m) of an occupied structure, or burrows which may run under or open into an occupied structure.
Author
ianquinto
ID
350360
Card Set
Field guide norway rat
Description
Field guide norway rat
Updated