| Records |
| Author |
Linklater, W.L. |
| Title |
Adaptive explanation in socio-ecology: lessons from the Equidae |
Type |
Journal Article |
| Year |
2000 |
Publication |
Biological Reviews of the Cambridge Philosophical Society |
Abbreviated Journal |
Biol. Rev. |
| Volume |
75 |
Issue |
1 |
Pages |
1-20 |
| Keywords |
*Adaptation, Physiological; Animals; Ecology; Equidae/*physiology; Female; Male; Phylogeny |
| Abstract |
Socio-ecological explanations for intra- and interspecific variation in the social and spatial organization of animals predominate in the scientific literature. The socio-ecological model, developed first for the Bovidae and Cervidae, is commonly applied more widely to other groups including the Equidae. Intraspecific comparisons are particularly valuable because they allow the role of environment and demography on social and spatial organization to be understood while controlling for phylogeny or morphology which confound interspecific comparisons. Feral horse (Equus caballus Linnaeus 1758) populations with different demography inhabit a range of environments throughout the world. I use 56 reports to obtain 23 measures or characteristics of the behaviour and the social and spatial organization of 19 feral horse populations in which the environment, demography, management, research effort and sample size are also described. Comparison shows that different populations had remarkably similar social and spatial organization and that group sizes and composition, and home range sizes varied as much within as between populations. I assess the few exceptions to uniformity and conclude that they are due to the attributes of the studies themselves, particularly to poor definition of terms and inadequate empiricism, rather than to the environment or demography per se. Interspecific comparisons show that equid species adhere to their different social and spatial organizations despite similarities in their environments and even when species are sympatric. Furthermore, equid male territoriality has been ill-defined in previous studies, observations presented as evidence of territoriality are also found in non-territorial equids, and populations of supposedly territorial species demonstrate female defence polygyny. Thus, territoriality may not be a useful categorization in the Equidae. Moreover, although equid socio-ecologists have relied on the socio-ecological model derived from the extremely diverse Bovidae and Cervidae for explanations of variation in equine society, the homomorphic, but large and polygynous, and monogeneric Equidae do not support previous socio-ecological explanations for relationships between body size, mating system and sexual dimorphism in ungulates. Consequently, in spite of the efforts of numerous authors during the past two decades, functional explanations of apparent differences in feral horse and equid social and spatial organization and behaviour based on assumptions of their current utility in the environmental or demographic context remain unconvincing. Nevertheless, differences in social cohesion between species that are insensitive to intra- and interspecific variation in habitat and predation pressure warrant explanation. Thus, I propose alternative avenues of inquiry including testing for species-specific differences in inter-individual aggression and investigating the role of phylogenetic constraints in equine society. The Equidae are evidence of the relative importance of phylogeny and biological structure, and unimportance of the present-day environment, in animal behaviour and social and spatial organization. |
Address  |
Institute of Natural Resources, Massey University, Palmerston North, New Zealand |
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English |
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| ISSN |
1464-7931 |
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| Notes |
PMID:10740891 |
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no |
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Serial |
2024 |
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| Author |
de Waal, F.B. |
| Title |
The end of nature versus nurture |
Type |
Journal Article |
| Year |
1999 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
| Volume |
281 |
Issue |
6 |
Pages |
94-99 |
| Keywords |
Animals; *Behavior; Behavior, Animal; Ecology; *Environment; Ethology; Evolution; Female; *Genetics; Humans; Instinct; Learning; Male; Sex Characteristics; Twin Studies |
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| Address |
Living Links Center, Yerkes Regional Primate Research Center, Atlanta, USA |
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English |
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0036-8733 |
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| Notes |
PMID:10614071 |
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no |
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refbase @ user @ |
Serial |
192 |
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| Author |
Crans, W.J.; McNelly, J.; Schulze, T.L.; Main, A. |
| Title |
Isolation of eastern equine encephalitis virus from Aedes sollicitans during an epizootic in southern New Jersey |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of the American Mosquito Control Association |
Abbreviated Journal |
J Am Mosq Control Assoc |
| Volume |
2 |
Issue |
1 |
Pages |
68-72 |
| Keywords |
Aedes/*microbiology; Alphavirus/*isolation & purification; Animals; Disease Outbreaks/veterinary; Ecology; Encephalitis Virus, Eastern Equine/*isolation & purification; Encephalomyelitis, Equine/epidemiology/transmission/veterinary; Horse Diseases/epidemiology/transmission; Horses; Insect Vectors/microbiology; New Jersey |
| Abstract |
Eastern equine encephalitis virus (EEE) was isolated from the salt marsh mosquito, Aedes sollicitans, collected from coastal areas of New Jersey on 3 occasions during the late summer and fall of 1982. The isolations were made at a time when local Culiseta melanura were either undergoing a population increase or exhibiting high levels of EEE virus. Although no human cases were reported during the epizootic period, the data lend support to the hypothesis that Ae. sollicitans is capable of functioning as an epidemic vector in the coastal areas of New Jersey where human cases of EEE have been most common. |
| Address |
Mosquito Research and Control, Cook College, Rutgers University, New Brunswick, NJ 08903 |
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English |
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8756-971X |
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| Notes |
PMID:2853203 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2684 |
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| Author |
Matsuzawa, T. |
| Title |
The Ai project: historical and ecological contexts |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
6 |
Issue |
4 |
Pages |
199-211 |
| Keywords |
Adaptation, Psychological; Animals; *Behavior, Animal; *Cognition; *Culture; Discrimination Learning; Ecology; Female; History, 20th Century; Imitative Behavior; *Learning; Male; Pan troglodytes/*psychology; Research/history |
| Abstract |
This paper aims to review a long-term research project exploring the chimpanzee mind within historical and ecological contexts. The Ai project began in 1978 and was directly inspired by preceding ape-language studies conducted in Western countries. However, in contrast with the latter, it has focused on the perceptual and cognitive capabilities of chimpanzees rather than communicative skills between humans and chimpanzees. In the original setting, a single chimpanzee faced a computer-controlled apparatus and performed various kinds of matching-to-sample discrimination tasks. Questions regarding the chimpanzee mind can be traced back to Wolfgang Koehler's work in the early part of the 20th century. Yet, Japan has its unique natural and cultural background: it is home to an indigenous primate species, the Japanese snow monkey. This fact has contributed to the emergence of two previous projects in the wild led by the late Kinji Imanishi and his students. First, the Koshima monkey project began in 1948 and became famous for its discovery of the cultural propagation of sweet-potato washing behavior. Second, pioneering work in Africa, starting in 1958, aimed to study great apes in their natural habitat. Thanks to the influence of these intellectual ancestors, the present author also undertook the field study of chimpanzees in the wild, focusing on tool manufacture and use. This work has demonstrated the importance of social and ecological perspectives even for the study of the mind. Combining experimental approaches with a field setting, the Ai project continues to explore cognition and behavior in chimpanzees, while its focus has shifted from the study of a single subject toward that of the community as a whole. |
| Address |
Section of Language and Intelligence, Primate Research Institute, Kyoto University, Japan. matsuzaw@pri.kyoto-u.ac.jp |
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English |
Summary Language |
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Edition |
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| ISSN |
1435-9448 |
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| Notes |
PMID:14566577 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2552 |
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| Author |
Munoz-Sanz, A. |
| Title |
[Christopher Columbus flu. A hypothesis for an ecological catastrophe] |
Type |
Journal Article |
| Year |
2006 |
Publication |
Enfermedades Infecciosas y Microbiologia Clinica |
Abbreviated Journal |
Enferm Infecc Microbiol Clin |
| Volume |
24 |
Issue |
5 |
Pages |
326-334 |
| Keywords |
Animals; Atlantic Islands; Birds; Chickens; Disease Outbreaks/*history; Disease Reservoirs; Disease Susceptibility; Ecology; Europe/ethnology; History, 15th Century; Horses; Humans; Indians, South American; Influenza A virus/classification/genetics/pathogenicity; Influenza in Birds/epidemiology/history/transmission/virology; Influenza, Human/epidemiology/*history/mortality/transmission; Models, Biological; Orthomyxoviridae Infections/epidemiology/history/veterinary/virology; Poultry Diseases/epidemiology/history/transmission/virology; Reassortant Viruses/genetics/pathogenicity; Species Specificity; Sus scrofa; Swine Diseases/history/transmission/virology; Terminology; West Indies/epidemiology |
| Abstract |
When Christopher Columbus and his men embarked on the second Colombian expedition to the New World (1493), the crew suffered from fever, respiratory symptoms and malaise. It is generally accepted that the disease was influenza. Pigs, horses and hens acquired in Gomera (Canary Islands) traveled in the same ship. The pigs may well have been the origin of the flu and the intermediary hosts for genetic recombination of other viral subtypes. The Caribbean archipelago had a large population of birds, the natural reservoir of the avian influenza virus. In this ecological scenario there was a concurrence of several biological elements that had never before coexisted in the New World: pigs, horses, the influenza virus and humans. We propose that birds are likely to have played an important role in the epidemiology of the flu occurring on the second Colombian trip, which caused a fatal demographic catastrophe, with an estimated mortality of 90% among the natives. |
| Address |
Unidad de Patologia Infecciosa, Hospital Universitario Infanta Cristina, Servicio Extremeno de Salud, Universidad de Extremadura, Badajoz, Espana. infectio@unex.es |
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Spanish |
Summary Language |
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Original Title |
La gripe de Cristobal Colon. Hipotesis sobre una catastrofe ecologica |
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Series Title |
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Edition |
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| ISSN |
0213-005X |
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| Notes |
PMID:16762260 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2624 |
| Permanent link to this record |
