Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: trappability

Sortuj według:

Ogranicz wyniki do:

Comparison of enumeration and Jolly-Seber estimation of population size in the common vole Microtus arvalis

100%

Bryja J., Tkadlec E., Nesvadbova J., Gaisler J., Zejda J.

Acta Theriologica

2001

tom 46

nr 3

Capture-recapture data on common voles Microtus arvalis (Pallas, 1779) in central Europe have been almost exclusively analysed by means of the enumeration technique (minimum number alive or calendar of catches). Here we compare enumeration and Jolly-Seber (JS) estimation of population size in the common vole using live-trapping data from an alfalfa field-population in southern Moravia, Czech Republic. Over the entire study the enumeration estimate of the population size was smaller by an average of 28% than the JS estimate. The negative bias increased with density, decreased with both capture probability and the survival rate, and was more pronounced in males at high density. We conclude that the method of direct enumeration is not reliable for estimating population size in the common vole.

Trappability of Clethrionomys glareolus and Apodemus flavicollis do rodents learn to avoid traps or get used to them?

80%

Cybulska A.

Polish Ecological Studies

1996

tom 22

nr 3-4

Ograniczanie wyników

1 Acta Theriologica

1 Polish Ecological Studies

1 Bryja J.

1 Cybulska A.

1 Gaisler J.

1 Nesvadbova J.

1 Tkadlec E.

1 Zejda J.

1 2001

1 1996

Wyniki wyszukiwania

Comparison of enumeration and Jolly-Seber estimation of population size in the common vole Microtus arvalis

Trappability of Clethrionomys glareolus and Apodemus flavicollis do rodents learn to avoid traps or get used to them?