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Author Keiper, R.; Houpt, K. openurl 
  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.  
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  ISSN 0002-9645 ISBN Medium  
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  Notes PMID:6732036 Approved no  
  Call Number refbase @ user @ Serial 665  
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Author Bard J, openurl 
  Title Perch la zebra In:Kos;Revista di Cultura e Storia della Type Journal Article
  Year 1984 Publication Abbreviated Journal Sci Med, Nat e Humane  
  Volume 1 Issue 6 Pages  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 922  
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Author Bökönyi, S. isbn  openurl
  Title Horse Type Book Chapter
  Year 1984 Publication Evolution of domesticated animals Abbreviated Journal  
  Volume 18 Issue Pages 162-173  
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  Publisher John Wiley & Sons Place of Publication Hoboken, NJ Editor Manson  
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  ISSN ISBN Product Details * Hardcover * Publisher: John Wiley & Sons (May 1986) * ISBN-10: 047020 Medium  
  Area Expedition Conference  
  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 949  
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Author KASEDA Y et al, openurl 
  Title Separation and independence of offsprings from the harem groups in Misaki horses Type Journal Article
  Year 1984 Publication Abbreviated Journal Jap J Zootechn Sci  
  Volume 55 Issue Pages 852-857  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1242  
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Author Kusunose R, S.H. openurl 
  Title The behavioral development of thouroughbred foals and the relationship between dams and foals Type Journal Article
  Year 1984 Publication Abbreviated Journal Jap J Zootechn Sci  
  Volume 55 Issue Pages 263-271  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1333  
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Author Mccort Wd, openurl 
  Title Behavior of feral horses and ponies Type Journal Article
  Year 1984 Publication Abbreviated Journal J Anim Sci  
  Volume 58 Issue Pages 493-499  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1376  
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Author Seyfarth, R.M.; Cheney, D.L. openurl 
  Title The acoustic features of vervet monkey grunts Type Journal Article
  Year 1984 Publication The Journal of the Acoustical Society of America Abbreviated Journal J Acoust Soc Am  
  Volume 75 Issue 5 Pages 1623-1628  
  Keywords *Acoustics; Animals; Auditory Perception; Cercopithecus/*physiology; Cercopithecus aethiops/*physiology; Cues; Dominance-Subordination; Female; Male; Social Behavior; Sound Spectrography; *Vocalization, Animal  
  Abstract East African vervet monkeys give short (125 ms), harsh-sounding grunts to each other in a variety of social situations: when approaching a dominant or subordinate member of their group, when moving into a new area of their range, or upon seeing another group. Although all these vocalizations sound similar to humans, field playback experiments have shown that the monkeys distinguish at least four different calls. Acoustic analysis reveals that grunts have an aperiodic F0, at roughly 240 Hz. Most grunts exhibit a spectral peak close to this irregular F0. Grunts may also contain a second, rising or falling frequency peak, between 550 and 900 Hz. The location and changes in these two frequency peaks are the cues most likely to be used by vervets when distinguishing different grunt types.  
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  ISSN 0001-4966 ISBN Medium  
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  Notes PMID:6736426 Approved no  
  Call Number refbase @ user @ Serial 703  
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Author BAGTACHE B et al, openurl 
  Title Paläontologie – Présence d`un Equus cacallin et d`une autre espéce nouvelle d`Equus dans l`Aterien des Allobroges, Agérie Type Journal Article
  Year 1984 Publication Abbreviated Journal C R Acad Sc Paris  
  Volume 298 Issue Pages 609-612  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 913  
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Author DUNCAN P et al, openurl 
  Title Reduction of inbreeding in a natural herd of horses Type Journal Article
  Year 1984 Publication Abbreviated Journal Anim Beh av  
  Volume 32 Issue Pages 520-527  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1034  
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Author Eisenmann V, openurl 
  Title Sur quelques caractères adaptatifs du squelette d`Equus et leurs implications paléoécologiques Bull Type Journal Article
  Year 1984 Publication Abbreviated Journal Bull Mus natn Hist nat Paris  
  Volume 6 Issue Pages 185-195  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1054  
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