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Table 2 Estimated population according to theory, trapped mink, and effort needed to remove a percent of the total population

From: Assessment of the efficiency in trapping North American mink (Neovison vison) for population control in Patagonia

 

Theoretical population

Theoretical female population

Proportion of trapped mink related to theoretical population

Population size

Number of trap/night to remove a percent of the estimated mink population

  

Male

Female

Total

N (1)

Proportion of N (1) from theoretical population

K × 1,000

70

80

90

Magdalena Fiord (1)

18.8

11.3

0.93

0.35

0.58

13.7

0.72

9.4

128.0

171.2

244.8

Magdalena Fiord (2)

18.8

11.3

0.27

0.00

0.11

1.2

0.06

41.0

29.4

39.3

56.2

Magdalena Fiord3

18.8

11.3

----

----

----

----

----

----

----

----

----

Magdalena Fiord SE

16.3

9.8

0.92

0.20

0.49

13.0

0.80

10.9

110.5

147.7

211.3

Magdalena Fiord SW

7.5

4.5

1.33

0.22

0.67

6.4

0.85

11.0

109.5

146.3

209.3

Magdalena Fiord NE

7.5

4.5

1.00

0.22

0.53

6.6

0.88

6.3

190

254

363.2

Magdalena Fiord NW

10.0

6.0

0.00

0.50

0.30

4.1

0.41

27.1

44.4

53.4

85

Cisnes River (1)

5.0

3.0

0.00

3.50

1.40

7.5

1.50

17.7

68

91

130.1

Cisnes River (2)

5.0

3.0

----

----

----

----

----

----

----

----

----

Cisnes River Estuary

5.0

3.0

0.00

1.00

0.40

2.7

0.54

33.8

35.6

47.6

68.1

Todos Los Santos Lake

9.1

5.5

1.39

0.18

0.66

6

0.66

54.6

22.5

29.5

42.2

Maullín River

4.2

2.5

2.94

0.40

1.43

6

1.42

24.0

50.2

67.0

114.0

Queulat Fiord

5.0

3.0

2.50

0.67

1.4

6.5

1.30

93.2

12.9

17.3

24.7

Average

  

1.10

0.72

0.79

    
  1. 1, 2, correlative number of the consecutive visits.