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	Author	Kirkpatrick, J.F.; Turner, A.
	Title	Reversibility of action and safety during pregnancy of immunization against porcine zona pellucida in wild mares (Equus caballus)			Type	Journal Article
	Year	2002	Publication	Reproduction (Cambridge, England) Supplement	Abbreviated Journal	Reprod Suppl
	Volume	60	Issue		Pages	197-202
	Keywords	Animals; Animals, Wild; Antigens/administration & dosage; Contraception, Immunologic/methods/veterinary; Egg Proteins/administration & dosage; Female; Fertility; Horses; Immunization, Secondary/veterinary; Membrane Glycoproteins/administration & dosage; Population Control; Pregnancy; Receptors, Cell Surface; Safety; Swine; Time Factors; Vaccines, Contraceptive/*administration & dosage
	Abstract	Contraceptive management of publicly valued wildlife species requires safeguards to ensure that these populations are preserved in a healthy state. In addition, reversibility of contraceptive effects and safety in pregnant animals are major concerns. A population of wild horses has been immunized against porcine zona pellucida (PZP) over a 12 year period on Assateague Island National Seashore, MD (ASIS). Mares initially received one or two 65 microg inoculations and once a year 65 microg booster inoculations, all delivered by dart. All young mares aged > 2 years were treated with PZP for 3 consecutive years regardless of whether they have bred successfully and they were then removed from treatment until they had foaled. All mares vaccinated for 1 or 2 consecutive years became fertile again and 69% of mares treated for 3 consecutive years returned to fertility. All five mares treated for 4 or 5 consecutive years have also returned to fertility, but over longer periods of time. Mares treated for 7 consecutive years have not returned to fertility, but several, while still infertile, have started ovulating again. There was no difference in survival rates between foals born to treated and untreated mares, and PZP treatment of pregnant mares did not affect subsequent fertility of their female offspring.
	Address	Science and Conservation Center, ZooMontana, Billings 59106, USA. zoolab@wtp.net
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1477-0415	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12220160			Approved	no
	Call Number	refbase @ user @			Serial	141
Permanent link to this record



	Author	Keiper, R.; Houpt, K.
	Title	Reproduction in feral horses: an eight-year study			Type	Journal Article
	Year	1984	Publication	American journal of veterinary research	Abbreviated Journal	Am J Vet Res
	Volume	45	Issue	5	Pages	991-995
	Keywords	Abortion, Veterinary/epidemiology; Anestrus; Animal Population Groups/physiology; Animals; Animals, Wild/physiology; Birth Rate; Female; Fertility; Horse Diseases/epidemiology; Horses/physiology; Lactation; Male; Maryland; Pregnancy; Reproduction; Seasons; Sex Ratio; Virginia
	Abstract	The reproductive rate and foal survival of the free-ranging ponies on Assateague Island National Seashore were studied for 8 years, 1975 to 1982. Most (52%) of the 86 foals were born in May, 13% were born in April, 22.6% in June, 10.4% in July, and less than 1% in August and September. The mean foaling rate was 57.1 +/- 3.9% and the survival rate was 88.3 +/- 3.6%. Forty-eight colts and 55 fillies were born (sex ratio 53% female). Mares less than 3 years old did not foal and the foaling rate of 3-year-old mares was only 23%, that of 4-year-old mares was 46%, that of 5-year-old mares was 53%, and 6-year-old mares was 69%. The relatively poor reproduction rate was believed to be a consequence of the stress of lactating while carrying a foal when forage quality on the island was low. The hypothesis was supported by the higher reproductive rate (74.4 +/- 2.4%) of the ponies in the Chincoteague National Wildlife Refuge on the southern part of the island. Their foals are weaned and sold in July each year. Despite the low reproductive rate on Assateague Island National Seashore , the number of ponies increased from 43 to 80, a 90% increase in the 8-year period or greater than 10%/yr. There were 24 deaths and 8 dispersals from the study area.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0002-9645	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:6732036			Approved	no
	Call Number	refbase @ user @			Serial	665
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	Author	Judge, P.G.; de Waal, F.B.
	Title	Intergroup grooming relations between alpha females in a population of free-ranging rhesus macaques			Type	Journal Article
	Year	1994	Publication	Folia primatologica; international journal of primatology	Abbreviated Journal	Folia Primatol (Basel)
	Volume	63	Issue	2	Pages	63-70
	Keywords	Animals; Animals, Wild; Female; Grooming; Macaca mulatta/psychology; Male; Population Density; *Social Behavior
	Abstract	Intergroup affiliation among female rhesus macaques, Macaca mulatta, was examined in the captive free-ranging colony of Morgan Island, S.C., USA. The provisioned colony has many social groups (35) and is maintained at a relatively high population density (21 animals/ha) with a relatively low adult male to female ratio (1:8.8). Focal and ad libitum samples were collected on 32 adults (3 males and 29 females) from two groups. Although infrequent, grooming was observed between adult females from different groups, and alpha females were the main participants in these interactions. Colony records indicated that none of the intergroup grooms was between females formerly from a common group. Relations between familiar neighboring groups may be maintained by a combination of both affiliative and aggressive behavior.
	Address	Yerkes Regional Primate Research Center, Lawrenceville, Ga 30243
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0015-5713	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:7813977			Approved	no
	Call Number	refbase @ user @			Serial	208
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	Author	Hrdy, S.B.
	Title	Male-male competition and infanticide among the langurs (Presbytis entellus) of Abu, Rajasthan			Type	Journal Article
	Year	1974	Publication	Folia Primatologica; International Journal of Primatology	Abbreviated Journal	Folia Primatol (Basel)
	Volume	22	Issue	1	Pages	19-58
	Keywords	Aggression; Animals; Animals, Newborn; Coitus; Competitive Behavior; Estrus; Feeding Behavior; Female; Haplorhini; Homing Behavior; Humans; India; Infanticide; Leadership; Male; Maternal Behavior; Population Density; Pregnancy; Rain; Seasons; Sex Factors; Sexual Behavior, Animal; Social Behavior; Temperature; Vocalization, Animal
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0015-5713	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:4215710			Approved	no
	Call Number				Serial	2051
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	Author	Hirsch, B.T.
	Title	Costs and benefits of within-group spatial position: a feeding competition model			Type	Journal Article
	Year	2007	Publication	The Quarterly review of biology	Abbreviated Journal	Q Rev Biol
	Volume	82	Issue	1	Pages	9-27
	Keywords	Animals; Competitive Behavior/physiology; Dominance-Subordination; Feeding Behavior/physiology/psychology; Population Dynamics; Predatory Behavior/physiology
	Abstract	An animal's within-group spatial position has several important fitness consequences. Risk of predation, time spent engaging in antipredatory behavior and feeding competition can all vary with respect to spatial position. Previous research has found evidence that feeding rates are higher at the group edge in many species, but these studies have not represented the entire breadth of dietary diversity and ecological situations faced by many animals. In particular the presence of concentrated, defendable food patches can lead to increased feeding rates by dominants in the center of the group that are able to monopolize or defend these areas. To fully understand the tradeoffs of within-group spatial position in relation to a variety of factors, it is important to be able to predict where individuals should preferably position themselves in relation to feeding rates and food competition. A qualitative model is presented here to predict how food depletion time, abundance of food patches within a group, and the presence of prior knowledge of feeding sites affect the payoffs of different within-group spatial positions for dominant and subordinate animals. In general, when feeding on small abundant food items, individuals at the front edge of the group should have higher foraging success. When feeding on slowly depleted, rare food items, dominants will often have the highest feeding rates in the center of the group. Between these two extreme points of a continuum, an individual's optimal spatial position is predicted to be influenced by an additional combination of factors, such as group size, group spread, satiation rates, and the presence of producer-scrounger tactics.
	Address	Department of Anthropology, Stony Brook University Stony Brook, New York 11794, USA. BTHIRSCH@IC.SUNYSB.EDU
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0033-5770	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17354992			Approved	no
	Call Number	refbase @ user @			Serial	803
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	Author	Hebenbrock, M.; Due, M.; Holzhausen, H.; Sass, A.; Stadler, P.; Ellendorff, F.
	Title	A new tool to monitor training and performance of sport horses using global positioning system (GPS) with integrated GSM capabilities			Type	Journal Article
	Year	2005	Publication	DTW. Deutsche Tierarztliche Wochenschrift	Abbreviated Journal	Dtsch Tierarztl Wochenschr
	Volume	112	Issue	7	Pages	262-265
	Keywords	Animals; Heart Rate; Horses/physiology; Physical Conditioning, Animal; Population Surveillance; Satellite Communications; Telemetry/methods/veterinary
	Abstract	Global Positioning Systems (GPS) are considered suitable to monitor the position and velocity of horses during cross-country competition or in training. Furthermore, simultaneous recording of life data such as heart rate could be useful to assess the horse's condition during exercise. To test the suitability and reliability of a commercially available GPS system with integrated heart rate recording system and with built in GSM for data transmission, the Fidelak Equipilot Type EP-2003-15/G-2.11 (EP-15/G) was evaluated first for reliability of pulse recording from a pulse generator within the physiological range of horses; furthermore distance, velocity and heart rate recordings were carried out on a standard 1000 m field track with five repetitions. Agreement (% deviation from actually measured distance and from stopwatch-distance based velocity calculations) and variability (Coefficient of Variation for distance, velocity, heart rate) were calculated. From the results it was safe to assume that the heart rate sensor recorded horse heart rates at a high degree of accuracy. Overall distances and velocities are in high agreement with actually measured values. However, overall variability expressed in terms of relative variability (C.V.) is smaller for distance recording (C.V. 0.68%) when compared to velocity (C.V. 1.01%). The system tested is suitable and reliable for simultaneously recording of distance, velocity and heart rates for horses during cross country exercise. GPS-based monitoring of movement along with simultaneous recording of physiological data and the possibility to call upon data will not only be of benefit for training horses or for surveillance during competition, it may also be suitable for distant patient monitoring and in behavioural studies as well as in veterinary medicine in general.
	Address	Institute for Animal Breeding Mariensee, Federal Agricultural Research Centre (FAL), Neustadt, Germany
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0341-6593	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16124700			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4035
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	Author	Hall, R.A.; Broom, A.K.; Smith, D.W.; Mackenzie, J.S.
	Title	The ecology and epidemiology of Kunjin virus			Type	Journal Article
	Year	2002	Publication	Current Topics in Microbiology and Immunology	Abbreviated Journal	Curr Top Microbiol Immunol
	Volume	267	Issue		Pages	253-269
	Keywords	Animals; Culicidae/virology; Ecosystem; Horse Diseases/etiology; Horses; Humans; Insect Vectors; Population Surveillance; West Nile Fever/epidemiology/etiology/veterinary; West Nile virus/classification/genetics/immunology/*isolation & purification
	Abstract
	Address	Department of Microbiology and Parasitology, School of Molecular and Microbial Sciences, The University of Queensland, St. Lucia, Queensland 4072, Australia
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0070-217X	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12082993			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2642
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	Author	Gauvin, S.; Giraldeau, L.-A.
	Title	Nutmeg mannikins ( Lonchura punctulata) reduce their feeding rates in response to simulated competition			Type	Journal Article
	Year	2004	Publication	Oecologia	Abbreviated Journal	Oecologia
	Volume	139	Issue	1	Pages	150-156
	Keywords	Animals; Feeding Behavior; Population Density; Social Behavior; *Songbirds
	Abstract	Group feeding animals experience a number of competitive foraging costs that may result in a lowered feeding rate. It is important to distinguish between reductions in feeding rates that are caused by reduced food availability and physical interactions among foragers from those caused by the mere presence of foraging companions that may be self-imposed in order to obtain some benefit of group membership. Starlings ( Sturnus vulgaris) reduce their feeding rates when in the company of simulated competitors located in an adjacent cage that cannot affect the food availability or interact with the forager. In the present study, we investigate whether the presence of simulated competitors in another species of passerine, nutmeg mannikins ( Lonchura punctulata), can result in self-imposed reductions in feeding rates. When feeding in the company of simulated competitors, mannikins spent more non-foraging time near them, fed more slowly, reduced travel times between patches, reduced their scanning time and pecked more slowly. These results provide evidence that simulated competitors induce a reduction in pecking rate: behavioural interference. These self-imposed responses to competitors may have resulted from attempts to remain close to the non-feeding companions. Such self-imposed reductions in feeding rates may be a widespread yet generally unrecognised foraging cost to group feeding individuals.
	Address	Department of Biology, Concordia University, Montreal, Quebec, Canada
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0029-8549	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:14722748			Approved	no
	Call Number				Serial	2133
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	Author	Feist, J.D.; McCullough, D.R.
	Title	Reproduction in feral horses			Type	Journal Article
	Year	1975	Publication	Journal of Reproduction and Fertility. Supplement	Abbreviated Journal	J Reprod Fertil Suppl
	Volume		Issue	23	Pages	13-18
	Keywords	Age Factors; Animals; Female; Horses/physiology; Leadership; Male; Maternal Behavior; Population; Reproduction; Sexual Behavior, Animal; Social Dominance; Sucking Behavior
	Abstract	A behavioural study of feral horses was conducted on the Pryor Mountain Wild Horse Range in the western United States. All 270 horses on the Range were identified individually. The sex ratio was nearly balanced. Foal to adult female ratio was 43-2:100. Morality was concentrated among foals and old horses. Horses were organized as forty-four harem groups each with a dominant stallion, one to two immature stallions, one to three immature mares, one to three adult mares and their yearling and foal offspring, and 23 bachelor groups of one to eight stallions. Harem groups were quite stable year-round because of dominance and leadership by the stallions and group fidelity by mares and their offsring. Most changes occurred during the breeding season and involved immature females. Defeat of dominant stallions was infrequent. Immature males were tolerated because of their submissive behaviour. Bachelor stallion groups were inherently unstable. Mares came into heat after foaling in May/June, and were mated by harem stallions only.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0449-3087	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1060766			Approved	no
	Call Number	refbase @ user @			Serial	1964
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	Author	Ermilina, J.A.
	Title	Dominance hierarchy in feral horses in Rostov Region			Type	Conference Article
	Year	2012	Publication	Proceedings of the 2. International Equine Science Meeting	Abbreviated Journal	Proc. 2. Int. Equine. Sci. Mtg
	Volume	in press	Issue		Pages
	Keywords	feral horse, island population, dominance, hierarchy
	Abstract	Horses maintain the social structure through the establishment of dominant-subordinate hierarchical relationships, both within and between groups. The object of study was the feral horse population, living on the Vodnyi Isl, Manych-Ghudilo Lake, on the territory of Rostov Region, S Russia the State Nature Biosphere Reserve “Rostov”. The social structure of this population is represented by the harem and bachelor groups, and their variety – the “mixed”groups, the presence and composition of which is atypical for the populations of feral horses. The main objectives of this work were to identify the hierarchical structure of different types of social groups and the role of the stallions in them, defining the dominance rank of animals. The method of continuous logging occurred aggressive reaction, ritualized interaction between stallions, take into account the direction of interactions between individuals. We observed 5 harem, 3 bachelor and 3 mixed groups. Each group was studied for a total of 60 h (8 h per group per days).Behavioral observations were carried out in summer 2009-2011. Based on the number and direction of aggressive interactions the hierarchical coefficient was calculated for individual horses (Ivanov et al, 2007). Harem group consists of an adult stallion (<5 years old) and a few mares with their offspring. Our observations of harem groups confirm the previously known information about this type of social groups (Berger, 1986; Carson, Wood-Gush, 1983, Keiper, 1983). Hierarchical system between mares is close to linear with reversal. The stallion is not included in the hierarchy of the mares; he is the leader and serves to maintain the integrity of the group and inter-group hierarchy, and has reproductive function. Bachelor groups consist of stallions 2-3 years and older who do not have their own harem. It is known that dominance hierarchy in these groups is linear, young males or males who recently had joined the group have low ranks (Berger, 1977; Houpt, Keiper, 1982; Kirillov Paklina, 1990). In observed bachelor groups dominant stallion have a significantly higher rank in the hierarchy. However, among other stallions is not always observed strict linear hierarchy – some individuals have very similar ranks. Function of managing the group and maintaining the intergroup hierarchy can be distributed among the all stallions in the group. Mixed groups are composed of several mature stallions, one or more mares (sometimes with the offspring). In the study population in this type of social groups animals may be mature (age 5 and older) and semi-mature (2-5 years). The hierarchy of these atypical groups has not been studied. In the studied 3 mixed groups stallions have very similar hierarchical rank, dominant and subordinate stallions share a function of managing the group, participation in ritualized interactions. Our studies have revealed the plasticity of the hierarchical structure of groups of horses and the need to further investigate the distribution of social roles among stallions.
	Address
	Corporate Author	Ermilina, J.A.			Thesis
	Publisher	Xenophon Publishing	Place of Publication	Wald	Editor	Krueger, K.;
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	978-3-9808134-26	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	5580
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