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  1. Selection for reduced fear of humans changes intra-specific social behavior in red junglefowl - implications for chicken domestication

    Contributor(s):: Gjoen, J., Jensen, P.

  2. An exploratory study on dogs’ vocalizations towards their owner and food in an unsolvable task

    Contributor(s):: Gaunet, Florence, Savalli, Carine, Legou, Thierry

  3. A Case Study: Observations of Behaviors & Vocalizations in a Captive Asian Elephant (Elephas maximus) During Quarantine

    Full-text: Available

    | Contributor(s):: Alexandra Dilley

    Bozie, an Asian elephant (Elephas maximus), was relocated from the Baton Rouge Zoo to Smithsonian’s National Zoo. During a requisite 29-day quarantine period, I recorded Bozie’s stress-related behaviors and the vocalizations she produced when she was alone and with her keepers in...

  4. Only When It Feels Good: Specific Cat Vocalizations Other Than Meowing

    Full-text: Available

    | Contributor(s):: Jaciana Luzia Fermo, Maria Alice Schnaider, Adelaide Hercília Pescatori Silva, Carla Forte Maiolino Molento

    Our objective was to identify and characterize the types of vocalization other than meowing (VOM) in two contexts, a pleasant and an aversive situation, and to study the effect of the sex of the animal. A total of 74 cats (32 tom cats and 42 queens) living in the city of Curitiba, Brazil,...

  5. Digital Dogsitter® reduces vocalization in dogs suffering from separation-related problems

    | Contributor(s):: Tiira, Katriina

  6. Pet dogs home alone: A video-based study

    | Contributor(s):: Stephan, Gerrit, Leidhold, Joachim, Hammerschmidt, Kurt

  7. Do You Hear What I Hear? Human Perception of Coyote Group Size

    Full-text: Available

    | Contributor(s):: Kyle Brewster, Scott E. Henke, Alfonso Ortega, John Tomecek, Benjamin Turner

    Recordings of 1 – 4 coyotes (Canis latrans) that were howling and yip-yapping were played to 427 participants who were asked to estimate the number of coyotes they perceived to hear. Participants were separated by gender (M or F), age group ( 35), resident location (urban, suburban, or...

  8. Acoustic variables of high-pitched vocalizations in dairy sheep breeds

    | Contributor(s):: Papadaki, Kallirroi, Laliotis, George P., Bizelis, Iosif

  9. Humans can identify cats' affective states from subtle facial expressions

    | Contributor(s):: Dawson, L. C., Cheal, J., Niel, L., Mason, G.

  10. Anticipatory behaviour in animals: A critical review

    | Contributor(s):: Anderson, C., von Keyserlingk, M. A. G., Lidfors, L. M., Weary, D. M.

  11. Automatic Classification of Cat Vocalizations Emitted in Different Contexts

    Full-text: Available

    | Contributor(s):: Stavros Ntalampiras, Luca Andrea Ludovico, Giorgio Presti, Emanuela Prato Previde, Monica Battini, Simona Cannas, Clara Palestrini, Silvana Mattiello

    Cats employ vocalizations for communicating information, thus their sounds can carry a wide range of meanings. Concerning vocalization, an aspect of increasing relevance directly connected with the welfare of such animals is its emotional interpretation and the recognition of the production...

  12. Identification of specific call types produced by pre-weaning gilts in response to isolation

    | Contributor(s):: Olson, Mariah J., Creamer, Maggie, Horback, Kristina M.

  13. Initial Observation of Human-Bird VocalInteractions in a Zoological Setting

    Full-text: Available

    | Contributor(s):: Rébecca Kleinberger, Janet Baker, Gabriel Miller

    Vocal interactions between humans and non-human animals are pervasive, but studies are often limitedto communication within species. Here, we conducted a pilot exploration of vocal interactions betweenvisitors to the San Diego Zoo Safari Park and Sampson, an 18-year-old male Hyacinth Macaw...

  14. Selection on ultrasonic call rate in neonatal rats affects low frequency, but not ultrasonic, vocalizations in adults

    | Contributor(s):: Lesch, Raffaela, Orozco, Andrea, Shilling, Margaret, Zimmerberg, Betty, Fitch, W. Tecumseh

  15. Comparison of Vocalization Patterns in Piglets Which Were Crushed to Those Which Underwent Human Restraint

    Full-text: Available

    | Contributor(s):: Nichole M. Chapel, Jeffrey R. Lucas, Scott Radcliffe, Kara R. Stewart, Donald C. Lay Jr.

    : Though many studies focused on piglet crushing utilizing piglet vocalizations to test sow response, none have verified the properties of test vocalizations against actual crushing events. Ten sows were observed 48 h after parturition, and crushing events were recorded from all sows. When a...

  16. Human Classification of Context-Related Vocalizations Emitted by Familiar And Unfamiliar Domestic Cats: An Exploratory Study

    | Contributor(s):: Ellis, Sarah L. H., Swindell, Victoria, Burman, Oliver H. P.

    Previous research has shown that human classification of contextspecific domestic cat “meow” vocalizations is relatively poor, although improves with experience and/or general affinity to cats. To investigate whether such classification further improves when recipients (humans) of the...

  17. A review of behavioural methods to study emotion and mood in pigs, Sus scrofa

    | Contributor(s):: Murphy, Eimear, Nordquist, Rebecca E., van der Staay, Franz Josef

    The study of emotions in animals is of increasing importance to a number of disciplines such as animal welfare science and affective neuroscience. Pigs are a common farm animal species, most often reared in intensive systems. Moreover, they are increasingly being used in laboratories. To...

  18. Nursing behaviour in lactating sows kept in isolation, in acoustic and visual contact

    | Contributor(s):: Šilerová, Jitka, Špinka, Marek, Neuhauserová, Kristýna

    Synchronization of nursings occurs between domestic lactating sows housed in one room. This study tested experimentally whether acoustic contact without any possibility to see other sows is sufficient for a high level of nursing synchronization. Secondly, the study investigated whether the...

  19. Litter competition during nursings and its effect on sow response on Day 2 postpartum

    | Contributor(s):: Bozděchová, Barbora, Illmann, Gudrun, Andersen, Inger Lise, Haman, Jiří, Ehrlenbruch, Rebecca

    The aim of the present study was to assess neonatal sibling competition during nursing on Day 2 postpartum (pp) as well as its effect on the sow's responses. A total of 41 healthy loose-housed sows and their piglets were directly observed and video recorded for 6h on Day 2 pp. Piglet behaviours...

  20. ‘Beware, I am big and non-dangerous!’ – Playfully growling dogs are perceived larger than their actual size by their canine audience

    | Contributor(s):: Bálint, Anna, Faragó, Tamás, Dóka, Antal, Miklósi, Ádám, Pongrácz, Péter

    Nonhuman animals often use specific signals to initiate playful interactions. There is evidence also for different forms of play-maintenance. Playful encounters include out-of-context and exaggerated behavioural sequences. Scientists have already collected knowledge about virtual size...