| Records |
| Author |
Illius,A. W.; Gordon, I. J. |
| Title |
The Allometry of Food Intake in Grazing Ruminants |
Type |
Journal Article |
| Year |
1987 |
Publication |
The Journal of Animal Ecology |
Abbreviated Journal |
T. J. Anim. Ecol. |
| Volume |
56 |
Issue |
3 |
Pages  |
989-999 |
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| Abstract |
A simulation model of grazing mechanics in ruminants shows that, due to the allometric relations of bite size and metabolic requirements to body size, small animals are able to subsist on shorter swards than large animals. (2) The density of nutrients in the grazed horizon of the modelled swards markedly affected the ability of animals of a given body size to satisfy their energy requirements. (3) By extension, the allometric relationships would be expected to apply in selective grazing and browsing species in their choice of food items of different size and nutrient content. (4) The results support the argument that sexual segregation and habitat choice of dimorphic species is an effect of scramble competition for limited resources, the males thus being excluded from mutually preferred swards. (5) The model provides an explanation for two interspecific phenomena amongst grazers: grazing succession and grazing facilitation. |
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Equine Behaviour @ team @ |
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4265 |
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| Author |
Kacelnik, A. |
| Title |
Information primacy or preference for familiar foraging techniques? A critique of Inglis & Ferguson |
Type |
Journal Article |
| Year |
1987 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
35 |
Issue |
3 |
Pages |
925-926 |
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2121 |
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| Author |
Penzhorn Bl, L.P. |
| Title |
Comparisons of reproductive parameters of two Cape mountain zebra populations |
Type |
Journal Article |
| Year |
1987 |
Publication |
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Abbreviated Journal |
J Reprod Fert Suppl |
| Volume |
35 |
Issue |
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Pages |
661-663 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1462 |
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| Author |
Deuel, N.R.; Lawrence, L.M. |
| Title |
Laterality in the gallop gait of horses |
Type |
Journal Article |
| Year |
1987 |
Publication |
Journal of biomechanics |
Abbreviated Journal |
J Biomech |
| Volume |
20 |
Issue |
6 |
Pages |
645-649 |
| Keywords |
Animals; *Functional Laterality; *Gait; Horses/*physiology; Kinesis |
| Abstract |
Bilateral asymmetry in gallop stride limb contact patterns of four Quarter Horse fillies was documented by high-speed cinematography. Horses were filmed with rider by two cameras simultaneously while galloping along a straightaway. Even though signaled for each gallop lead an equivalent number of times, horses frequently switched leads, selecting the left lead nearly twice as often as the right. Velocities and stride lengths were greater for the left lead than the right, but stride frequencies did not differ between leads. Velocity effects were partitioned out in limb contact data analysis to enable the determination of persistent gallop stride asymmetries. The contact duration for the trailing (right) fore limb on the left lead exceeded the contact duration for the trailing (left) fore limb on the right lead. Selecting the right fore limb as the trailing fore limb may have allowed horses to use it to withstand the greater stresses and caused them to preferentially gallop with the left fore limb leading. Laterality may have an important influence on equine gallop motion patterns and thereby influence athletic performance. |
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English |
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0021-9290 |
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PMID:3611140 |
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no |
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refbase @ user @ |
Serial |
528 |
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| Author |
Hildebrand, M. |
| Title |
The Mechanics of Horse Legs |
Type |
Journal Article |
| Year |
1987 |
Publication |
American Scientist |
Abbreviated Journal |
Amer. Sci. |
| Volume |
75 |
Issue |
6 |
Pages |
594-601 |
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no |
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Equine Behaviour @ team @ |
Serial |
2301 |
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| Author |
Enileeva, N.K. |
| Title |
[Ecological characteristics of horse stomach botflies in Uzbekistan] |
Type |
Journal Article |
| Year |
1987 |
Publication |
Parazitologiia |
Abbreviated Journal |
Parazitologiia |
| Volume |
21 |
Issue |
4 |
Pages |
577-579 |
| Keywords |
Animals; Diptera/*physiology; Ecology; Female; Flight, Animal; Horses/*parasitology; Larva/physiology; Male; Population Dynamics; Uzbekistan |
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The paper describes the flight periods and dynamics of abundance of horse botflies, life span of females and males, effect of environmental factors on the activity of flies and their behaviour, potential fecundity of different species of botflies, duration of embryonal development, preservation of viability of larvae in egg membranes, localization of different stages of botflies in the host, and methods of their control. |
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Russian |
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Ekologicheskie osobennosti zheludochnykh ovodov loshadei v Uzbekistane |
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0031-1847 |
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PMID:2958767 |
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no |
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Equine Behaviour @ team @ |
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2680 |
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| Author |
Klingel H, |
| Title |
Unpaarhufer, Pferde |
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Journal Article |
| Year |
1987 |
Publication |
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Abbreviated Journal |
in Grzimek B (ed): Grzimeks Enzyklopädie Säugetiere |
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4 |
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548-592, Kindler |
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from Professor Hans Klingels Equine Reference List |
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no |
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1319 |
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| Author |
Povinelli DJ |
| Title |
Monkeys, apes, mirrors and minds: the evolution of self-awareness in primates |
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Journal Article |
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1987 |
Publication |
J. Hum. Evol. |
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2 |
Issue |
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493 |
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Equine Behaviour @ team @ |
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3025 |
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| Author |
Güntürkün, O.; Kesch, S. |
| Title |
Visual lateralization during feeding in pigeons |
Type |
Journal Article |
| Year |
1987 |
Publication |
Behavioral Neuroscience |
Abbreviated Journal |
Behav. Neurosci. |
| Volume |
101 |
Issue |
3 |
Pages |
433-435 |
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use of right vs left eye, amount & accuracy of pecking in food discrimination task, homing pigeons, implications for lateralization of cerebral function |
| Abstract |
In a quasi-natural feeding situation, adult pigeons had to detect and consume 30 food grains out of about 1,000 pebbles of similar shape, size, and color within 30 s under monocular conditions. With the right eye seeing, the animals achieved a significantly higher discrimination accuracy and, consequently, a significantly higher proportion of grains grasped than with the left eye seeing. This result supports previous demonstrations of a left-hemisphere dominance for visually guided behavior in birds. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
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US: American Psychological Association |
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1939-0084(Electronic);0735-7044(Print) |
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Equine Behaviour @ team @ 1987-30501-001 |
Serial |
5588 |
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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 |
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32 |
Issue |
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Pages |
427-433 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1116 |
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