Provider: Ingenta Connect
Database: Ingenta Connect
Content: application/x-research-info-systems
TY - ABST
AU - Silen, Roy R.
AU - Dimock II, Edward J.
TI - Modeling Feeding Preferences by Hare and Deer Among Douglas-fir Genotypes
JO - Forest Science
PY - 1978-03-01T00:00:00///
VL - 24
IS - 1
SP - 57
EP - 64
KW - clone
KW - Odocoileus hemionus columbianus
KW - Lepus americanus
KW - cross
KW - Palatability
KW - Pseudotsuga menziesii
KW - Availability
N2 - Data on deer and hare preference for Douglas-fir genotypes in eight pen and two field trials were compared to data generated from a mathematical model. The model predicted sequential preference changes from the products of two probabilities that accounted for a changing availability (P_{a}) and an assumed constant palatability (P_{p} for each of several, simultaneously tested plant types. In all 10 experiments, data were closely mimicked by the model. In only one experiment did the predicted feeding sequence deviate significantly from actual data. High correlations were achieved among (P_{p} values calculated independently for duplicate tests of identical genotypes. Since (P_{p} is a mathematical estimate of palatability--itself a qualitative phenomenon--the concept may prove useful for aiding interpretations of other studies expressing animal preference as an integration of plant availability and palatability. Forest Sci. 24:57-64.
UR - http://www.ingentaconnect.com/content/saf/fs/1978/00000024/00000001/art00012
ER -