scholarly journals Monkeys (Macaca Mulatta and Cebus Apella) and Human Adults and Children (Homo Sapiens) Compare Subsets of Moving Stimuli Based on Numerosity

2011 ◽  
Vol 2 ◽  
Author(s):  
Michael J. Beran ◽  
Scott Decker ◽  
Allison Schwartz ◽  
Natasha Schultz
Keyword(s):  
Macaca Mulatta ◽  
Homo Sapiens ◽  
Cebus Apella ◽  
Moving Stimuli ◽  
Adults And Children ◽  
Human Adults

scholarly journals Effects of Crowd Size, Composition, and Noise Level On Pool Use in a Mixed-Species Penguin Colony

2021 ◽  
Vol 8 (4) ◽  
pp. 507-520
Author(s):  
Ashley N. Edes ◽  
Eli Baskir ◽  
Karen L. Bauman ◽  
Nathasha Chandrasekharan ◽  
Michael Macek ◽  
...  
Keyword(s):  
Size Composition ◽  
Neutral Stimulus ◽  
Noise Levels ◽  
Mixed Species ◽  
Adults And Children ◽  
Human Adults ◽  
Penguin Colony ◽  
Crowd Size ◽  
Human Care ◽  
Human Hearing

Studies on how visitors affect penguins in human care report a mixture of negative, neutral, and positive impacts on behavior and physiology. Swimming is a highly motivated behavior that may promote positive welfare in penguins. We investigated how visitor crowd size, composition, and noise levels impact pool use in a mixed-species colony housing king (Aptenodytes patagonicus; n = 20), gentoo (Pygoscelis papua; n = 14), and southern rockhopper (Eudyptes chrysocome; n = 24) penguins. We used video and sound loggers to record if penguins were on land or in water, the number of human adults and children present, and noise levels using 5-minute scan samples from 09:00-15:00 over 36 continuous days. Data were analyzed using linear mixed models with proportion of penguins in the water as the dependent variable and crowd size, composition, and noise levels in A-weighted (dBA) and C-weighted (dBC) scales as independent variables. Crowd size was positively associated with pool use in gentoo penguins. Crowd composition did not predict pool use in any species. Noise levels in dBA, which is adjusted to the higher frequencies of human hearing, positively predicted pool use in southern rockhopper penguins. Noise levels in dBC, which captures lower frequencies, did not predict pool use in any species. No evidence of negative visitor effects was observed. Instead, these results suggest visitors are a neutral stimulus to king penguins and may be enriching to gentoo and southern rockhopper penguins.

scholarly journals Transfer of spatial search between environments in human adults and young children (Homo sapiens): Implications for representation of local geometry by spatial systems

2013 ◽  
Vol 56 (3) ◽  
pp. 421-434 ◽  
Author(s):  
Adina R. Lew ◽  
Barrie Usherwood ◽  
Frantzeska Fragkioudaki ◽  
Varvara Koukoumi ◽  
Shamus P. Smith ◽  
...  
Keyword(s):  
Young Children ◽  
Homo Sapiens ◽  
Local Geometry ◽  
Spatial Search ◽  
Spatial Systems ◽  
Human Adults

scholarly journals Identifying protective Streptococcus pyogenes vaccine antigens recognized by both B and T cells in human adults and children

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Rasmus Mortensen ◽  
Thomas Nørrelykke Nissen ◽  
Sine Fredslund ◽  
Ida Rosenkrands ◽  
Jan Pravsgaard Christensen ◽  
...  
Keyword(s):  
T Cells ◽  
Streptococcus Pyogenes ◽  
Vaccine Antigens ◽  
Adults And Children ◽  
Human Adults
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