Records |
Author |
Hamilton, W.D. |
Title |
Geometry for the selfish herd |
Type |
Journal Article |
Year |
1971 |
Publication |
Journal of theoretical biology |
Abbreviated Journal |
J. Theor. Biol. |
Volume |
31 |
Issue |
2 |
Pages |
295-311 |
Keywords |
Animals; Anura; *Behavior, Animal; Breeding; Communication; Evolution; Fear; Metallurgy; *Models, Biological; Probability; Snakes; *Spatial Behavior |
Abstract |
This paper presents an antithesis to the view that gregarious behaviour is evolved through benefits to the population or species. Following Galton (1871) and Williams (1964) gregarious behaviour is considered as a form of cover-seeking in which each animal tries to reduce its chance of being caught by a predator.
It is easy to see how pruning of marginal individuals can maintain centripetal instincts in already gregarious species; some evidence that marginal pruning actually occurs is summarized. Besides this, simply defined models are used to show that even in non-gregarious species selection is likely to favour individuals who stay close to others.
Although not universal or unipotent, cover-seeking is a widespread and important element in animal aggregation, as the literature shows. Neglect of the idea has probably followed from a general disbelief that evolution can be dysgenic for a species. Nevertheless, selection theory provides no support for such disbelief in the case of species with outbreeding or unsubdivided populations.
The model for two dimensions involves a complex problem in geometrical probability which has relevance also in metallurgy and communication science. Some empirical data on this, gathered from random number plots, is presented as of possible heuristic value. |
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0022-5193 |
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Notes |
PMID:5104951 |
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no |
Call Number |
refbase @ user @ |
Serial |
771 |
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Author |
BOUISSOU MF et al, |
Title |
Intercommunications chez les ongules |
Type |
Journal Article |
Year |
1971 |
Publication |
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Abbreviated Journal |
J Psychol normale et pathologieque |
Volume |
3-4 |
Issue |
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Pages |
415 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
952 |
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Author |
Wilhelm, W.E.; Anderson, J.H. |
Title |
Vahlkampfia lobospinosa (Craig. 1912) Craig. 1913: rediscovery of a coprozoic ameba |
Type |
Journal Article |
Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
Volume |
57 |
Issue |
6 |
Pages |
1378-1379 |
Keywords |
Animals; Cattle; Ecology; Feces/microbiology; Horse Diseases/epidemiology; Horses; Protozoan Infections/epidemiology; *Protozoan Infections, Animal; Sarcodina/*classification/growth & development; Swine; Swine Diseases/epidemiology; Tennessee |
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0022-3395 |
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PMID:5157177 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2724 |
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Author |
Walker, M.L.; Becklund, W.W. |
Title |
Occurrence of a cattle eyeworm, Thelazia gulosa (Nematoda: Thelaziidae), in an imported giraffe in California and T. lacrymalis in a native horse in Maryland |
Type |
Journal Article |
Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
Volume |
57 |
Issue |
6 |
Pages |
1362-1363 |
Keywords |
Animals; *Animals, Zoo; Artiodactyla; California; Ecology; Eye Diseases/epidemiology/*veterinary; Female; Horse Diseases/*epidemiology; Horses; Male; Maryland; Nematode Infections/epidemiology/*veterinary; Spiruroidea/*classification |
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0022-3395 |
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PMID:5157171 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2725 |
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Author |
Malek, E.A. |
Title |
The life cycle of Gastrodiscus aegyptiacus (Cobbold, 1876) Looss, 1896 (Trematoda: Paramphistomatidae: Gastrodiscinae) |
Type |
Journal Article |
Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
Volume |
57 |
Issue |
5 |
Pages |
975-979 |
Keywords |
Animals; Bulinus; *Disease Vectors; Ecology; Feces; Female; Horse Diseases/*etiology; Horses; Metamorphosis, Biological; Ovum; Parasite Egg Count; Perissodactyla; Sudan; Trematoda/anatomy & histology/growth & development; Trematode Infections/etiology/*veterinary |
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0022-3395 |
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Notes |
PMID:5167379 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2726 |
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Author |
Hoogstraal, H.; Mitchell, R.M. |
Title |
Haemaphysalis (Alloceraea) aponommoides Warburton (Ixodoidea: Ixodidae), description of immature stages, hosts, distribution, and ecology in India, Nepal, Sikkim, and China |
Type |
Journal Article |
Year |
1971 |
Publication |
The Journal of Parasitology |
Abbreviated Journal |
J Parasitol |
Volume |
57 |
Issue |
3 |
Pages |
635-645 |
Keywords |
Altitude; Animals; Artiodactyla; Birds; Buffaloes; Carnivora; Cattle; China; Deer; Dogs; Ecology; Female; Goats; Horses; Humans; India; Insectivora; Larva/anatomy & histology; Male; Mice; Nepal; Rats; Rodentia; Sciuridae; Seasons; Sheep; Tick Infestations/*epidemiology; Ticks/*anatomy & histology/growth & development |
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0022-3395 |
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Notes |
PMID:5090972 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2730 |
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Author |
Edman, J.D. |
Title |
Host-feeding patterns of Florida mosquitoes. I. Aedes, Anopheles, Coquillettidia, Mansonia and Psorophora |
Type |
Journal Article |
Year |
1971 |
Publication |
Journal of Medical Entomology |
Abbreviated Journal |
J Med Entomol |
Volume |
8 |
Issue |
6 |
Pages |
687-695 |
Keywords |
*Aedes; Animals; *Anopheles; Birds; Cats; Cattle; *Culicidae; Dogs; Ecology; *Feeding Behavior; Female; Florida; Horses; Humans; Swine |
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0022-2585 |
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Notes |
PMID:4403447 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2722 |
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Author |
Tempelis, C.H.; Nelson, R.L. |
Title |
Blood-feeding patterns of midges of the Culicoides variipennis complex in Kern County, California |
Type |
Journal Article |
Year |
1971 |
Publication |
Journal of Medical Entomology |
Abbreviated Journal |
J Med Entomol |
Volume |
8 |
Issue |
5 |
Pages |
532-534 |
Keywords |
Animals; Behavior, Animal; Cattle; Ceratopogonidae/*immunology; Chickens; Dogs; Ecology; Feeding Behavior; Female; Horses; Humans; Immune Sera; Mice; Precipitin Tests; Rabbits; Rats; Sciuridae; Sheep |
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0022-2585 |
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Notes |
PMID:5160258 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2723 |
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Author |
Stout, I.J.; Clifford, C.M.; Keirans, J.E.; Portman, R.W. |
Title |
Dermacentor variabilis (Say) (Acarina: Ixodidae) established in southeastern Washington and northern Idaho |
Type |
Journal Article |
Year |
1971 |
Publication |
Journal of Medical Entomology |
Abbreviated Journal |
J Med Entomol |
Volume |
8 |
Issue |
2 |
Pages |
143-147 |
Keywords |
Animals; Arthropod Vectors; Disease Reservoirs/*epidemiology; Dogs; Ecology; Female; Horses; Humans; Idaho; Larva; Male; Seasons; Sheep; Tick Infestations/*epidemiology/veterinary; Ticks/*classification; Washington; Zoonoses |
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0022-2585 |
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PMID:5157834 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2729 |
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Author |
Epstein H, |
Title |
Descent and origin of the ass |
Type |
Book Chapter |
Year |
1971 |
Publication |
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Abbreviated Journal |
In Epstein: The origin of the domestic animals of Africa. II. |
Volume |
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Issue |
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Pages |
394-398 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
Call Number |
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Serial |
1069 |
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