Estimation of Contributions to Population Growth: A Reverse-time Capture-recapture Approach

Ecology, 81(12), 2000, pp. 3362-3376.

Table 2. Estimates of population change ( ) for patch 1 of a 2-patch system and relative contributions to population size and growth of adult survival on patch 1 ( ), adult survival and movement from patch 2 to patch 1 ( ) and recruitment to patch 1 from outside the 2 -patch system ( ) for meadow voles trapped on grid 4A, Patuxent Wildlife Research Center, Laurel, Maryland, November 1991 - May 1993.
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Trapping

period



Date


+


++


++


++
2 1-01-92 1.25 (0.735) - - -
3 2-26-92 0.51 (0.360) 0.49 (0.126) 0.00 (0.000) 0.51 (0.126)
4 4-22-92 1.03 (0.767) 0.62 (0.166) 0.04 (0.035) 0.34 (0.169)
5 6-17-92 1.36 (0.832) 0.49 (0.091) 0.00 (0.000) 0.51 (0.091)
6 8-12-92 0.88 (0.249) 0.30 (0.069) 0.08 (0.040) 0.62 (0.076)
7 10-07-92 1.54 (0.238) 0.57 (0.065) 0.02 (0.017) 0.41 (0.065)
8 12-01-92 0.67 (0.185) 0.51 (0.056) 0.03 (0.020) 0.45 (0.056)
9 1-27-93 0.65 (0.472) 0.83 (0.065) 0.00 (0.000) 0.17 (0.065)
10 3-25-93 - - 0.66 (0.113) 0.04 (0.046) 0.29 (0.111)
11 5-20-93 - - 0.43 (0.139) 0.14 (0.099) 0.43 (0.141)

*Mid-point of 5-day (periods 1-8) trapping period and first day of 2-day (9-11) periods.

+Estimated from patch 1 capture history data using the approach of Pradel (1996).

++Estimated using reverse capture-recapture with multistate models.

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Table 3