toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Menges, R.W.; Furcolow, M.L.; Selby, L.A.; Habermann, R.T.; Smith, C.D. openurl 
  Title Ecologic studies of histoplasmosis Type Journal Article
  Year 1967 Publication American Journal of Epidemiology Abbreviated Journal Am J Epidemiol  
  Volume (up) 85 Issue 1 Pages 108-119  
  Keywords Adolescent; Adult; Animals; Antibodies/*analysis; Carnivora; Cats; Cattle; Child; Child, Preschool; Dogs; Ecology; Female; Fluorescent Antibody Technique; Histoplasma/isolation & purification; Histoplasmin; Histoplasmosis/*epidemiology/*immunology; Horses; Humans; Infant; Infant, Newborn; Kansas; Male; Marsupialia; Mice; Middle Aged; Missouri; Rabbits; Skin Tests; *Soil Microbiology; Swine  
  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 0002-9262 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:5334640 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2747  
Permanent link to this record
 

 
Author Kampmann, S.; Hampson, B.A.; Pollitt, C.C. url  doi
openurl 
  Title Population dynamics of feral horses (Equus caballus) following above-average rainfall in a semi-arid environment of Australia Type Journal Article
  Year 2013 Publication Australian Veterinary Journal Abbreviated Journal Aust Vet J  
  Volume (up) 91 Issue 11 Pages 482-487  
  Keywords animal welfare; ecology; horses; reproduction; wildlife  
  Abstract Background Recent record rainfall in much of semi-arid Central Australia is the most likely reason for a feral horse population increase in excess of normal. Uncontrolled numbers of feral horses have habitat degradation and animal welfare implications. Objectives The aims of this study were to investigate the social structure of feral horses and assess their population growth rate following unseasonably high rainfall. Methods The study area was 4000 km2 of unmanaged, semi-arid country in Central Australia (latitude 24.50°S, longitude 132.10°E). Horses were identified by descriptive features from ground searches, movement-activated cameras and ‘hides’ positioned at key water holes. Wherever possible, sex and age categories were documented. Population growth rate was estimated by the number of foals divided by the number of horses older than 1 year in the observed population. Results A total of 1424 horses were identified and categorised, of which 335 were foals born within the current year. Only 123 juveniles were identified. Of the adult horses, 53.4% were male and 46.6% were female and this differed from parity (P = 0.04). Of the mares, 71.9% had a foal at foot and the population growth rate was 29.5%. Conclusions With a sustained population growth rate of 29.5%, this population of feral horses will more than double within 3 years. The high population increase will likely have a detrimental effect on native fauna and flora and the fragile, semi-arid ecosystems of Central Australia. After a period of high rainfall and plentiful resources, ‘normal’ drought conditions will return and many feral horses will starve and die as they compete for limited resources.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1751-0813 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5747  
Permanent link to this record
 

 
Author Barros, A.T. openurl 
  Title Seasonality and relative abundance of Tabanidae (Diptera) captured on horses in the Pantanal, Brazil Type Journal Article
  Year 2001 Publication Memorias do Instituto Oswaldo Cruz Abbreviated Journal Mem Inst Oswaldo Cruz  
  Volume (up) 96 Issue 7 Pages 917-923  
  Keywords Animals; Brazil; Climate; Diptera/classification/*physiology; Ecology; Horses/*parasitology; Population Dynamics; Seasons; Species Specificity  
  Abstract Once a month, from June 1992 to May 1993, collections of tabanids on horse were conducted in the Nhecolandia, Pantanal State of Mato Grosso do Sul, Brazil. Tabanid catches using hand nets were conducted from sunrise to sunset at grassland and cerradao (dense savanna) habitats. A total of 3,442 tabanids from 21 species,12 genera, and 3 subfamilies were collected. Although species abundance varied seasonally depending on habitat, no habitat specificity was observed for the most abundant species. In the grassland, 1,625 (47.2%) tabanids belonging to 19 species were collected, while 1,817 (52.8%) tabanids from 17 species were caught in the cerradao. The number of tabanid species varied from 7 during winter (July/August) to 15 in the spring (October). Tabanus importunus (56%) was the most abundant species, followed by T. occidentalis (8.2%), and T. claripennis (8.1%). The tabanid peak, in October, coincided with the beginning of the rainy season. The population peak of most species, including those with higher vector potential, suggests that the rainy season can be considered as the period of potentially higher risk of mechanical transmission of pathogens by tabanids to horses in the region.  
  Address Embrapa Pantanal, 79320-900 Corumba, MS, Brasil. thadeu@cpap.embrapa.br  
  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 0074-0276 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11685255 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2644  
Permanent link to this record
 

 
Author Feh, C.; Munkhtuya, B.; Enkhbold, S.; Sukhbaatar, T. url  doi
openurl 
  Title Ecology and social structure of the Gobi khulan Equus hemionus subsp. in the Gobi B National Park, Mongolia Type Journal Article
  Year 2001 Publication Biological Conservation Abbreviated Journal Biol. Conserva.  
  Volume (up) 101 Issue 1 Pages 51-61  
  Keywords Equus hemionus; Ecology and social structure; Gobi National Park; Mongolia  
  Abstract The status of the Gobi khulan Equus hemionus subsp. is recorded as “insufficiently known” in the Species Survival Commission's Equid Action Plan. Recent counts confirm that Mongolia holds the most important population of the whole species. Since 1953, the animals have benefited from a protected status, but this is now challenged. A 5-year study in the B part of the Gobi National Park on one subpopulation showed that it has remained stable over the past 15 years with an adequate mean reproductive rate of 15% and a 50% survival rate over the first year. Age/sex related mortality and prey analysis indicate that wolf predation probably has some impact on the population, in particular for 4-6-year-olds of both sexes at the start of reproduction. Desert and mountain steppes are the khulan's year-round preferred habitat, but `oases', play an important role at the beginning of lactation. Anthropogenic factors affect both home range and habitat use through direct intervention or permanent occupation of the scarce water sources. Khulans of this subpopulation, unlike other Asian and African wild asses, form year-round stable, non-territorial families. These families and all-male groups join together into “bands” in winter, and herds of several hundred animals, where reproductive rate is highest, form throughout the year. The existence of such herds may thus be critical for the breeding success of the population. Our study provides the first detailed quantitative data for this subspecies, which will help to monitor changes in the future.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2289  
Permanent link to this record
 

 
Author Scherer, W.F.; Madalengoitia, J.; Flores, W.; Acosta, M. openurl 
  Title Ecologic studies of Venezuelan encephalitis virus in Peru during 1970-1971 Type Journal Article
  Year 1975 Publication American Journal of Epidemiology Abbreviated Journal Am J Epidemiol  
  Volume (up) 101 Issue 4 Pages 347-355  
  Keywords Animals; Antibodies, Viral; Cricetinae/immunology; Culicidae/microbiology; *Disease Vectors; Ecology; *Encephalitis Virus, Venezuelan Equine/immunology/isolation & purification; Encephalomyelitis, Equine/immunology/microbiology/transmission; Female; Hemagglutination Inhibition Tests; Horses/immunology; Humans; Neutralization Tests; Peru  
  Abstract Venezuelan encephalitis (VE) virus has intermittently produced epidemics and equine epizootics on the dry Pacific coastal plain of Peru since at least the 1930's. However, evidence that the virus exists in the Amazon region of Peru to the east of the Andes mountains was not obtained until antibodies were found in human sera collected in 1965, and 10 strains of the virus were isolated in a forest near the city of Iquitos, Peru during February and March 1971. Eight strains came from mosquitoes and two from dead sentinel hamsters. Three hamsters exposed in forests near Iquitos developed VE virus antibodies suggesting that hamster-benign strains also exist there. Antibody tests of equine sera revealed no evidence that VE virus was actively cycling during the late 1950's or 1960's in southern coastal Peru, where equine epizootics had occurred in the 1930's and 1940's. In northern coastal Peru bordering Ecuador, antibodies were present in equine sera, presumably residual from the 1969 outbreak caused by subtype I virus, since neutralizing antibody titers were higher to subtype I virus than to subtypes III or IV. No VE virus was detected in this northern region during the dry season of 1970 by use of sentinel hamsters. The possibility is considered that VE epidemics and equine epizootics on the Pacific coast of Peru are caused by movements of virus in infected vertebrates traversing Andean passes or in infected vertebrates or mosquitoes carried in airplanes from the Amazon region.  
  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 0002-9262 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:235838 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2705  
Permanent link to this record
 

 
Author Sudia, W.D.; Fernandez, L.; Newhouse, V.F.; Sanz, R.; Calisher, C.H. openurl 
  Title Arbovirus vector ecology studies in Mexico during the 1972 Venezuelan equine encephalitis outbreak Type Journal Article
  Year 1975 Publication American Journal of Epidemiology Abbreviated Journal Am J Epidemiol  
  Volume (up) 101 Issue 1 Pages 51-58  
  Keywords Animals; Arboviruses/isolation & purification; Culicidae/microbiology; Disease Vectors/*microbiology; Ecology; Encephalitis Virus, St. Louis/isolation & purification; Encephalitis Virus, Venezuelan Equine/*isolation & purification; Encephalitis Virus, Western Equine/isolation & purification; Encephalomyelitis, Equine/epidemiology/*transmission/veterinary; Horse Diseases/epidemiology/*transmission; Horses; Insect Vectors/microbiology; Mexico  
  Abstract Virus vector studies were conducted in the States of Durango, Chihuahua, and Tamaulipas, Mexico, in June and July 1972. Apparently only a low level of Venzuelan equine encephalitis (VEE) virus transmission to equines occured at the time of the study, and the infection was restricted to areas which had not experienced overt activity during the preceding year. The low level of infection was associated with a scarcity of mosquitoes. The IB (epidemic) strain of VEE virus was isolated from two pools of Anopheles pseudopunctipennis (Theo.) and the blood of one symptomatic equine. The low mosquito population, the relatively few equine cases observed, and the absence of reports of VEE human disease from the outbreak area suggested VEE virus persistence through a low-level mosquito-equine transmission cycle. Other studies have already indicated that wild vertebrates play no more than a minor role in outbreaks of epidemic VEE. Mosquito collections made in areas of the states of Durango, Chihuahua, and Tamaulipas, where considerable epidemic activity of VEE had occurred in 1971, failed to reveal evidence of VEE virus persistence. Twenty-nine ioslations of other arboviruses were also made in these studies: including 22 of St. Louis encephalitis virus (SLE), 2 of Flanders virus, 1 of Turlock virus, 1 of Trivittatus virus of the California Group, 1 of western equine encephalitis virus (VEE), and 2 (from Santa Rose) which possibly represent a hitherto unknown virus in the Bunyamwera Group. These are the first reports of SLE virus isolations from mosquitoes in Mexico, and the first demonstration of Trivittatus, VEE Turlock and Flanders viruses in Mexico from any source.  
  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 0002-9262 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:235213 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2706  
Permanent link to this record
 

 
Author Healy, S.D.; Jones, C.M. url  doi
openurl 
  Title Animal learning and memory: an integration of cognition and ecology Type Journal Article
  Year 2002 Publication Zoology Abbreviated Journal Zoology  
  Volume (up) 105 Issue 4 Pages 321-327  
  Keywords cognitive ecology; spatial learning and memory; adaptive specialisation  
  Abstract Summary A wonderfully lucid framework for the ways to understand animal behaviour is that represented by the four [`]whys' proposed by Tinbergen (1963). For much of the past three decades, however, these four avenues have been pursued more or less in parallel. Functional questions, for example, have been addressed by behavioural ecologists, mechanistic questions by psychologists and ethologists, ontogenetic questions by developmental biologists and neuroscientists and phylogenetic questions by evolutionary biologists. More recently, the value of integration between these differing views has become apparent. In this brief review, we concentrate especially on current attempts to integrate mechanistic and functional approaches. Most of our understanding of learning and memory in animals comes from the psychological literature, which tends to use only rats or pigeons, and more occasionally primates, as subjects. The underlying psychological assumption is of general processes that are similar across species and contexts rather than a range of specific abilities. However, this does not seem to be entirely true as several learned behaviours have been described that are specific to particular species or contexts. The first conspicuous exception to the generalist assumption was the demonstration of long delay taste aversion learning in rats (Garcia et al., 1955), in which it was shown that a stimulus need not be temporally contiguous with a response for the animal to make an association between food and illness. Subsequently, a number of other examples, such as imprinting and song learning in birds (e.g., Bolhuis and Honey, 1998; Catchpole and Slater, 1995; Horn, 1998), have been thoroughly researched. Even in these cases, however, it has been typical for only a few species to be studied (domestic chicks provide the [`]model' imprinting species and canaries and zebra finches the song learning [`]models'). As a result, a great deal is understood about the neural underpinnings and development of the behaviour, but substantially less is understood about interspecific variation and whether variation in behaviour is correlated with variation in neural processing (see review by Tramontin and Brenowitz, 2000 but see ten Cate and Vos, 1999).  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0944-2006 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4741  
Permanent link to this record
 

 
Author Joubert, L.; Oudar, J.; Hannoun, C.; Beytout, D.; Corniou, B.; Guillon, J.C.; Panthier, R. openurl 
  Title [Epidemiology of the West Nile virus: study of a focus in Camargue. IV. Meningo-encephalomyelitis of the horse] Type Journal Article
  Year 1970 Publication Annales de l'Institut Pasteur Abbreviated Journal Ann Inst Pasteur (Paris)  
  Volume (up) 118 Issue 2 Pages 239-247  
  Keywords Animals; Ecology; Encephalitis Viruses/*isolation & purification; Encephalomyelitis, Equine/*epidemiology/immunology; France; Hemagglutination Inhibition Tests; Meningoencephalitis/*veterinary; Neurologic Manifestations; Serologic Tests  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language French Summary Language Original Title Epidemiologie du virus West Nile: etude d'un foyer en Camargue. IV. La meningo-encephalomyelite du cheval  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0020-2444 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:5461277 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2737  
Permanent link to this record
 

 
Author Kiltie, R.A.; Fan, J.; Laine, A.F. openurl 
  Title A wavelet-based metric for visual texture discrimination with applications in evolutionary ecology Type Journal Article
  Year 1995 Publication Mathematical Biosciences Abbreviated Journal Math Biosci  
  Volume (up) 126 Issue 1 Pages 21-39  
  Keywords Animals; Carnivora; *Ecology; Equidae; *Evolution; Humans; Mathematics; Models, Biological; Moths; *Pattern Recognition, Visual; Pigmentation  
  Abstract Much work on natural and sexual selection is concerned with the conspicuousness of visual patterns (textures) on animal and plant surfaces. Previous attempts by evolutionary biologists to quantify apparency of such textures have involved subjective estimates of conspicuousness or statistical analyses based on transect samples. We present a method based on wavelet analysis that avoids subjectivity and that uses more of the information in image textures than transects do. Like the human visual system for texture discrimination, and probably like that of other vertebrates, this method is based on localized analysis of orientation and frequency components of the patterns composing visual textures. As examples of the metric's utility, we present analyses of crypsis for tigers, zebras, and peppered moth morphs.  
  Address Department of Zoology, University of Florida, Gainesville  
  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 0025-5564 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7696817 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2660  
Permanent link to this record
 

 
Author Holbrook, A.A. openurl 
  Title Biology of equine piroplasmosis Type Journal Article
  Year 1969 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume (up) 155 Issue 2 Pages 453-454  
  Keywords Animals; Arthropod Vectors; Babesiosis/*epidemiology; Ecology; Epidemiology; Florida; Horse Diseases/*epidemiology; Horses; Ticks  
  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 0003-1488 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:5816130 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2740  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print