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The Disturbance of Resident Populations of Field Voles(Microtus agrestis) by ImmigrantsAuthor(s): Louise Riotte-Lambert, Alice Rémy & Harry P. AndreassenSource: Annales Zoologici Fennici, 49(1/2):103-112. 2012.Published By: Finnish Zoological and Botanical Publishing BoardURL: http://www.bioone.org/doi/full/10.5735/086.049.0110

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Hom

e ra

nge

(m2 )

Resident males(immigrant male)

(n = 4)

Resident females(immigrant male)

(n = 9)

Resident females(immigrant female)

(n = 7)

0

10

20

30

40

50

60

70

Before reinforcement After reinforcement

Ove

rlap

(%)

Resident−resident pair(immigrant male)

(n = 7)

Resident−resident pair(immigrant female)

(n = 5)

0

10

20

30

40 Before reinforcement After reinforcement