Records |
Author |
Touma, C.; Palme, R. |
Title |
Measuring fecal glucocorticoid metabolites in mammals and birds: the importance of validation |
Type |
Journal Article |
Year |
2005 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
Volume |
1046 |
Issue |
|
Pages |
54-74 |
Keywords |
Animals; Birds/*metabolism; Circadian Rhythm; Feces/*chemistry; Glucocorticoids/*analysis; Mammals/*metabolism; Reproducibility of Results; Seasons; Sex Factors |
Abstract |
In recent years, the noninvasive monitoring of steroid hormone metabolites in feces of mammals and droppings of birds has become an increasingly popular technique. It offers several advantages and has been applied to a variety of species under various settings. However, using this technique to reliably assess an animal's adrenocortical activity is not that simple and straightforward to apply. Because clear differences regarding the metabolism and excretion of glucocorticoid metabolites (GCMs) exist, a careful validation for each species and sex investigated is obligatory. In this review, general analytical issues regarding sample storage, extraction procedures, and immunoassays are briefly discussed, but the main focus lies on experiments and recommendations addressing the validation of fecal GCM measurements in mammals and birds. The crucial importance of scrutinizing the physiological and biological validity of fecal GCM analyses in a given species is stressed. In particular, the relevance of the technique to detect biologically meaningful alterations in adrenocortical activity must be shown. Furthermore, significant effects of the animals' sex, the time of day, season, and different life history stages are discussed, bringing about the necessity to seriously consider possible sex differences as well as diurnal and seasonal variations. Thus, comprehensive information on the animals' biology and stress physiology should be carefully taken into account. Together with an extensive physiological and biological validation, this will ensure that the measurement of fecal GCMs can be used as a powerful tool to assess adrenocortical activity in diverse investigations on laboratory, companion, farm, zoo, and wild animals. |
Address |
Max Planck Institute of Psychiatry, Department of Behavioral Neuroendocrinology, Kraepelinstrasse 2-10, D-80804 Munich, Germany. touma@mpipsykl.mpg.de |
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English |
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ISSN |
0077-8923 |
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Notes |
PMID:16055843 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4073 |
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Author |
Mostl, E.; Rettenbacher, S.; Palme, R. |
Title |
Measurement of corticosterone metabolites in birds' droppings: an analytical approach |
Type |
Journal Article |
Year |
2005 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
Volume |
1046 |
Issue |
|
Pages |
17-34 |
Keywords |
Animals; Birds/*metabolism; Corticosterone/*analysis/metabolism; Feces/*chemistry; Gas Chromatography-Mass Spectrometry; Immunoassay; Molecular Structure; Reproducibility of Results; Sensitivity and Specificity |
Abstract |
Fecal steroid analyses are becoming increasingly popular among both field and laboratory scientists. The benefits associated with sampling procedures that do not require restraint, anesthesia, and blood collection include less risk to subject and investigator, as well as the potential to obtain endocrine profiles that are not influenced by the sampling procedure itself. In the feces, a species-specific pattern of metabolites is present, because glucocorticoids are extensively metabolized. Therefore, selection of adequate extraction procedures and immunoassays for measuring the relevant metabolites is a serious issue. In this review, emphasis is placed on the establishment and analytical validation of methods to measure glucocorticoid metabolites for a noninvasive evaluation of adrenocortical activity in droppings of birds. |
Address |
Institute of Biochemistry, Department of Natural Sciences, University of Veterinary Medicine, Vienna, Veterinarplatz 1, A-1210 Vienna, Austria. erich.moestl@vu-wien.ac.at |
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English |
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ISSN |
0077-8923 |
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Notes |
PMID:16055841 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4082 |
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Author |
Palme, R.; Rettenbacher, S.; Touma, C.; El-Bahr, S.M.; Mostl, E. |
Title |
Stress hormones in mammals and birds: comparative aspects regarding metabolism, excretion, and noninvasive measurement in fecal samples |
Type |
Journal Article |
Year |
2005 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
Volume |
1040 |
Issue |
|
Pages |
162-171 |
Keywords |
Adrenal Glands/chemistry/metabolism; Animals; Birds; Catecholamines/analysis/chemistry/*metabolism; Feces/*chemistry; Glucocorticoids/analysis/chemistry/*metabolism; Hormones/analysis/metabolism; Mammals; Species Specificity; Stress/*metabolism |
Abstract |
A multitude of endocrine mechanisms are involved in coping with challenges. Front-line hormones to overcome stressful situations are glucocorticoids (GCs) and catecholamines (CAs). These hormones are usually determined in plasma samples as parameters of adrenal activity and thus of disturbance. GCs (and CAs) are extensively metabolized and excreted afterwards. Therefore, the concentration of GCs (or their metabolites) can be measured in various body fluids or excreta. Above all, fecal samples offer the advantages of easy collection and a feedback-free sampling procedure. However, large differences exist among species regarding the route and time course of excretion, as well as the types of metabolites formed. Based on information gained from radiometabolism studies (reviewed in this paper), we recently developed and successfully validated different enzyme immunoassays that enable the noninvasive measurement of groups of cortisol or corticosterone metabolites in animal feces. The determination of these metabolites in fecal samples can be used as a powerful tool to monitor GC production in various species of domestic, wildlife, and laboratory animals. |
Address |
Institute of Biochemistry, Department of Natural Sciences, University of Veterinary Medicine, Vienna, Austria. rupert.palme@vu-wien.ac.at |
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0077-8923 |
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Notes |
PMID:15891021 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4083 |
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Author |
Nettle, D. |
Title |
The evolution of personality variation in humans and other animals |
Type |
Journal Article |
Year |
2006 |
Publication |
The American Psychologist |
Abbreviated Journal |
Am Psychol |
Volume |
61 |
Issue |
6 |
Pages |
622-631 |
Keywords |
Animals; Birds; *Evolution; Female; Fishes; Humans; Insects; Male; Personality/*genetics/*physiology |
Abstract |
A comprehensive evolutionary framework for understanding the maintenance of heritable behavioral variation in humans is yet to be developed. Some evolutionary psychologists have argued that heritable variation will not be found in important, fitness-relevant characteristics because of the winnowing effect of natural selection. This article propounds the opposite view. Heritable variation is ubiquitous in all species, and there are a number of frameworks for understanding its persistence. The author argues that each of the Big Five dimensions of human personality can be seen as the result of a trade-off between different fitness costs and benefits. As there is no unconditionally optimal value of these trade-offs, it is to be expected that genetic diversity will be retained in the population. |
Address |
University of Newcastle, Newcastle, United Kingdom. daniel.nettle@ncl.ac.uk |
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English |
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ISSN |
0003-066X |
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Notes |
PMID:16953749 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4105 |
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Author |
Salzen, E.A.; Cornell, J.M. |
Title |
Self-perception and species recognition in birds |
Type |
Journal Article |
Year |
1968 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
Volume |
30 |
Issue |
1 |
Pages |
44-65 |
Keywords |
Animals; Birds; Color Perception; Discrimination Learning; Generalization, Response; Imprinting (Psychology); *Perception; *Self Concept; Social Isolation; *Species Specificity; Water |
Abstract |
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English |
Summary Language |
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Series Volume |
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Series Issue |
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ISSN |
0005-7959 |
ISBN |
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Notes |
PMID:5644775 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4154 |
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Author |
Reboreda, J.C.; Clayton, N.S.; Kacelnik, A. |
Title |
Species and sex differences in hippocampus size in parasitic and non-parasitic cowbirds |
Type |
Journal Article |
Year |
1996 |
Publication |
Neuroreport |
Abbreviated Journal |
Neuroreport |
Volume |
7 |
Issue |
2 |
Pages |
505-508 |
Keywords |
Animals; Birds/*physiology; Female; Hippocampus/*anatomy & histology; Male; Nesting Behavior/*physiology; Sex Characteristics; Species Specificity; Telencephalon/anatomy & histology |
Abstract |
To test the hypothesis that selection for spatial abilities which require birds to locate and to return accurately to host nests has produced an enlarged hippocampus in brood parasites, three species of cowbird were compared. In shiny cowbirds, females search for host nests without the assistance of the male; in screaming cowbirds, males and females inspect hosts' nests together; in bay-winged cowbirds, neither sex searches because this species is not a brood parasite. As predicted, the two parasitic species had a relatively larger hippocampus than the non-parasitic species. There were no sex differences in relative hippocampus size in screaming or bay-winged cowbirds, but female shiny cowbirds had a larger hippocampus than the male. |
Address |
Instituto de Biologia y Medicina Experimental-CONICET, Buenos Aires, Argentina |
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ISSN |
0959-4965 |
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Notes |
PMID:8730816 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4798 |
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Author |
Bergmann, H.H.; Klaus, S.; Muller, F.; Wiesner, J. |
Title |
[Individuality and type specificity in the songs of a population of hazel grouse (Bonasa bonasia bonasia L., Tetraoninae, Phasianidae)] |
Type |
Journal Article |
Year |
1975 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
Volume |
55 |
Issue |
1-2 |
Pages |
94-114 |
Keywords |
Animals; *Birds; Female; *Individuality; Male; Time Factors; *Vocalization, Animal |
Abstract |
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German |
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Original Title |
Individualitat und Artspezifitat in den Gesangsstrophen einer Population des Haselhuhns (Bonasa bonasia bonasia L., Tetraoninae, Phasianidae) |
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0005-7959 |
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Notes |
PMID:1191217 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4152 |
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Author |
Kida, H. |
Title |
[Ecology of influenza viruses in animals and the mechanism of emergence of new pandemic strains] |
Type |
Journal Article |
Year |
1997 |
Publication |
Nippon Rinsho. Japanese Journal of Clinical Medicine |
Abbreviated Journal |
Nippon Rinsho |
Volume |
55 |
Issue |
10 |
Pages |
2521-2526 |
Keywords |
Animals; Bird Diseases/transmission; Birds; Horse Diseases/transmission; Horses; Humans; Influenza, Human/transmission/*veterinary; Swine; Swine Diseases/transmission; Zoonoses |
Abstract |
Ecological studies on influenza viruses revealed that the hemagglutinin genes are introduced into new pandemic strains from viruses circulating in migratory ducks through domestic ducks and pigs in southern China. Experimental infection of pigs with 38 avian influenza virus strains with H1-H13 hemagglutinins showed that at least one strain of each HA subtype replicated in the upper respiratory tract of pigs. Co-infection of pigs with a swine virus and with an avian virus generated reassortant viruses. The results indicate that avian viruses of any subtype can contribute genes in the generation of reassortants. Virological surveillance revealed that influenza viruses in waterfowl reservoir are perpetuated year-by-year in the frozen lake water while ducks are absent. |
Address |
Department of Disease Control, Hokkaido University Graduate School of Veterinary Medicine |
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Japanese |
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Edition |
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ISSN |
0047-1852 |
ISBN |
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Notes |
PMID:9360367 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2654 |
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Author |
Valova, G.P.; Mefod'ev, V.V. |
Title |
[Specific features of an epidemic process in leptospiroses in northern conditions in Western Siberia] |
Type |
Journal Article |
Year |
1972 |
Publication |
Zhurnal Mikrobiologii, Epidemiologii, i Immunobiologii |
Abbreviated Journal |
Zh Mikrobiol Epidemiol Immunobiol |
Volume |
49 |
Issue |
11 |
Pages |
138-145 |
Keywords |
Animals; Bird Diseases/epidemiology; Birds; Carnivora; Cattle; Cattle Diseases/epidemiology; Dog Diseases/epidemiology; Dogs; Ecology; Foxes; Horse Diseases/epidemiology; Horses; Humans; Insectivora; Leptospirosis/*epidemiology/veterinary; Mice; Rats; Reindeer; Rodent Diseases/epidemiology; Rodentia; Sheep; Sheep Diseases/epidemiology; Siberia |
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Russian |
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Original Title |
Nekotorye spetsificheskie cherty epidemicheskogo protsessa pri leptospirozakh v usloviiakh Severa v Zapadnoi Sibiri |
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ISSN |
0372-9311 |
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Notes |
PMID:4645851 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2718 |
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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 |
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Original Title |
La gripe de Cristobal Colon. Hipotesis sobre una catastrofe ecologica |
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Edition |
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ISSN |
0213-005X |
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Notes |
PMID:16762260 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2624 |
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