Table 1 Review of mean litter sizes from studies in the northern hardwood ecotone, listed in order of sample size. Litter sizes are split into all litter sizes, and those for first litters and later litters.

From: A Bayesian state-space model using age-at-harvest data for estimating the population of black bears (Ursus americanus) in Wisconsin

Source

State/Province

All Litters

First Litter

Later Litters

n

LS

Range

n

LS

Range

n

LS

Range

46

Virginia

n/a

n/a

1–4

n/a

n/a

n/a

n/a

n/a

n/a

47

Maine

259

2.4

1–4

69

2.0

1–4

190

2.5

1–4

19

Minnesota

101

2.5

1–5

29

2.0

n/a

72

2.7

n/a

48

Massachusetts

86

2.3

1–4

20

1.6

1–3

66

2.6

1–4

17

Minnesotaa

52

2.4

1–3

17

2.1

1–3

35

2.5

1–3

40

Tennessee

45

2.6

1–4

n/a

n/a

n/a

n/a

n/a

n/a

49

Massachusetts

27

2.4

1–4

n/a

n/a

n/a

n/a

n/a

n/a

50

Virginia

26

2.3

1–4

n/a

n/a

n/a

n/a

n/a

n/a

41

Ontario

18

2.5

1–4

n/a

n/a

n/a

n/a

n/a

n/a

17

Minnesotab

18

3.0

1–4

8

2.5

1–3

10

3.4

3–4

42

all litter sizes, and those for first litters and later

15

2.5

2–4

n/a

n/a

n/a

n/a

n/a

n/a

51

Virginia and North Carolina

7

2.3

1–3

n/a

n/a

n/a

n/a

n/a

n/a

  1. aIn a natural system.
  2. bIn a system with access to garbage.
  3. We provide the sample size (n), mean litter size (LS), and the range of litter sizes. Cases where data is not available are marked as not available (n/a).