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Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado — John Shaqi

Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, ColoradoDouglas, Charles L.

Science

Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado

Name: Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado
Author: Douglas, Charles L.

Douglas, Charles L.

Mammals -- Behavior; Mammals -- Colorado -- Mesa Verde National Park; Peromyscus maniculatus; Piñon mouse

nose; the molt line has moved to  | line, grayer posterior to it.
  shoulder region by end of week;   |
  pelage anterior to line browner,  |
  grayer posterior to it.           |
                                    |
  Tail haired and weakly bicolored  | Tail haired and bicolored in all
  in some individuals by end of     | individuals.
  week.                             |
                                    |
  Young walk and jump well; squirm  | Young walk and jump well; fight and
  but rarely bite.                  |  bite when handled.
  ----------------------------------+-------------------------------------
                                    |
  FOURTH WEEK: Begin to eat solid   | Some young eat grain by 24th day;
  foods at 23-29 days, but also     | others continue to nurse.
  nurse.                            |
                                    |
  Molt line about 3/4 inch          | Juvenal pelage complete; no sign of
  posterior to head. Juvenal pelage | postjuvenal molt.
  completed by end of week. Some    |
  young have brownish hair on front |
  legs.                             |
                                    |
  Young roll over on backs and use  | As in _P. truei_; also, all jump
  feet to ward off litter mates     | well, and fight fiercely when
  that are dropped into nest, or    | handled.
  into container, with them.        |
  ----------------------------------+-------------------------------------
                                    |
  FIFTH WEEK: Young weaned on 30th  | All young weaned before or by end
  to 40th day; some nurse beyond    | of week; none observed to nurse
  30th day if female is lactating.  | beyond 30th day, even if female is
                                    | lactating.
                                    |
  Juvenal pelage complete and no    | Juvenal pelage complete;
  postjuvenal molt apparent on      | postjuvenal pelage not apparent on
  dorsum.                           | most, but probably present on all,
                                    | and concealed under juvenal pelage.
  ----------------------------------+-------------------------------------
                                    |
  SIXTH WEEK: Postjuvenal pelage    | Postjuvenal molt apparent in most
  apparent in most individuals      | young; almost complete in some,
  under juvenal pelage, especially  | except above tail and on flanks.
  along lateral line.               |
  ----------------------------------+-------------------------------------
                                    |
  SEVENTH WEEK: Postjuvenal pelage  | Postjuvenal pelage apparent in all
  apparent in most young; in some   | young; less distinct molt line than
  the molt line has progressed well | in _P. truei_.
  up on the sides, but not to       |
  mid-dorsum.                       |
  ----------------------------------+-------------------------------------
                                    |

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Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado

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