| Records |
| Author |
Pusey, A.E. |
| Title |
Sex-biased dispersal and inbreeding avoidance in birds and mammals |
Type |
Journal Article |
| Year |
1987 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
| Volume |
2 |
Issue  |
10 |
Pages |
295-299 |
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| Abstract |
Sex differences in dispersal distance are widespread in birds and mammals, but the predominantly dispersing sex differs consistently between the classes. There has been persistent debate over the relative importance of two factors -- intrasexual competition and inbreeding avoidance -- in producing sex-biased dispersal, and over the sources of the difference in dispersal patterns between the two classes. Recent studies cast new light on these questions. |
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| ISSN |
0169-5347 |
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| Call Number |
Equine Behaviour @ team @ |
Serial |
5326 |
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| Author |
Lisa Nash, H.; Song, G.K.; Price, E.O. |
| Title |
Head partitions facilitate feeding by subordinate horses in the presence of dominant pen-mates |
Type |
Journal Article |
| Year |
1987 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
19 |
Issue |
1-2 |
Pages |
179-182 |
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| Abstract |
The purpose of the following study was to determine if head partitions would facilitate feeding by subordinate horses in the presence of dominant pen-mates. Six pairs of mares, each with established dominant-subordinate relationships, were allowed to compete for feed in a 112-cm trough following 24 h of deprivation. Time spent feeding by each mare in each pair was recorded with a wire-mesh partition, a solid plywood partition or no partition dividing the trough. Differences in feeding times between dominant and subordinate mares were greatest in the absence of a partition and least (P<0.05) with the wire barrier in place. Differences in feeding times with the solid plywood barrier were not significantly different from either of the other treatment conditions. It was concluded that head partitions on a trough facilitate feeding by subordinate horses in the presence of dominant pen-mates and thus provide a more equitable distribution of food resources. |
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| ISSN |
0168-1591 |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
5411 |
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| Author |
Rapaport, L.; King, N.E. |
| Title |
The behavioral research program at the Washington Park Zoo |
Type |
Journal Article |
| Year |
1987 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
18 |
Issue |
1 |
Pages |
57-66 |
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| Abstract |
For the past decade, the Washington Park Zoo, Portland, Oregon, has had an active behavioral research program. The research department is both a zoo-supported research facility for visiting researchers and staff, and an educational facility that teaches practical behavioral research methods to undergraduates. The research education program utilizes students from any of a dozen local colleges and universities. Students receive academic credit for their participation. Active keeper-participation plays a major role in many research projects. Not only does keeper-cooperation facilitate research, but their knowledge of the individual animals often proves invaluable. In addition to involvement in student projects, keepers have also conducted their own research projects. |
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no |
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Equine Behaviour @ team @ |
Serial |
2324 |
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| Author |
Sukhomlinov, B.F.; Korobov, V.N.; Gonchar, M.V.; Datsiuk, L.A.; Korzhev, V.A. |
| Title |
[Comparative analysis of the peroxidase activity of myoglobins in mammals] |
Type |
Journal Article |
| Year |
1987 |
Publication |
Zhurnal Evoliutsionnoi Biokhimii i Fiziologii |
Abbreviated Journal |
Zh Evol Biokhim Fiziol |
| Volume |
23 |
Issue |
1 |
Pages |
37-41 |
| Keywords |
Amino Acid Sequence; Animals; Ecology; *Evolution; Kinetics; Mammals/*metabolism; Myoglobin/*metabolism; Peroxidases/*metabolism |
| Abstract |
Studies have been made on the peroxidase activity of metmyoglobins in animals from various ecological groups--the horse Equus caballus, cattle Bos taurus, beaver Castor fiber, otter Lutra lutra, mink Mustela vison and dog Canis familiaris. It was found that the level of this activity in diving animals depends on the duration of their diving, whereas in terrestrial species--on the strength of muscular contraction. |
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Russian |
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Original Title |
Sravnitel'nyi analiz peroksidaznoi aktivnosti mioglobinov u mlekopitaiushchikh |
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0044-4529 |
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| Notes |
PMID:3564776 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2681 |
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| Author |
Wasserman, S. |
| Title |
Conformity of two sociometric relations |
Type |
Journal Article |
| Year |
1987 |
Publication |
Psychometrika |
Abbreviated Journal |
Psychometrika |
| Volume |
52 |
Issue |
1 |
Pages |
3-18 |
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| Abstract |
Abstract The problem of comparing two sociometric relations or measurements (A andB) recorded in distinct sociomatrices was originally discussed by Katz and Powell in the early 1950's and Hubert and Baker in the late 1970's. The problem is considered again using a probabilistic model designed specifically for discrete-valued network measurements. The model allows for the presence of various structural tendencies, such as reciprocity and differential popularity. A parameter that isolates the tendency for actors to choose other actors on both relations simultaneously is introduced, and estimated conditional on the presence of other parameters that reflect additional important network properties. The parameter is presented as a symmetric index but is also generalized to the predictive (A onB orB onA) situation. This approach to the problem is illustrated with the same data used by the earlier solutions, and the unique nature of the two relations in the data set (A = received choices,B = perceived choices), as it affects the modeling, is discussed. Significance tests for the parameter and related parameters are described, as well as an extension to more than two relations. |
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no |
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Equine Behaviour @ team @ |
Serial |
5027 |
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| Author |
Berger J, |
| Title |
Reproductive fates of dispersers in a harem-dwelling ungulate: the wild horse |
Type |
Journal Article |
| Year |
1987 |
Publication |
Mammalian Dispersal Patterns: The Effects of Social Structure on Population Genetics |
Abbreviated Journal |
Mammalian dispersal Patterns |
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Issue |
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Pages |
41-54 |
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Chepko-Sade, B.D. ; Halpin, Z.T. |
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Original Title |
Mammalian Dispersal Patterns: The Effects of Social Structure on Population Genetics |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
940 |
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| Author |
Ginsberg, J.R. |
| Title |
Social behavior and mating strategies of an arid adapted equid: the Grevy's zebra. |
Type |
Manuscript |
| Year |
1987 |
Publication |
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Prnceton |
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no |
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Equine Behaviour @ team @ |
Serial |
2295 |
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| Author |
GODFREY D et al, |
| Title |
Zebra stripes and tiger stripes: the special frequency distribution of the pattern compared to that of the background is significant in disply and crysis |
Type |
Journal Article |
| Year |
1987 |
Publication |
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Abbreviated Journal |
Biol J Linnean Soc |
| Volume |
32 |
Issue |
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Pages |
427-433 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1116 |
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| Author |
Harley Eh, |
| Title |
The retrieval of the quagga |
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Journal Article |
| Year |
1987 |
Publication |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1160 |
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| Author |
Berger, J.; Cunningham, C. |
| Title |
Influence of Familiarity on Frequency of Inbreeding in Wild Horses |
Type |
Journal Article |
| Year |
1987 |
Publication |
Evolution |
Abbreviated Journal |
Evolution |
| Volume |
41 |
Issue |
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Pages |
229-231 |
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no |
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Equine Behaviour @ team @ |
Serial |
2232 |
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