TOMANOVÁ, Kateřina, Pavel SLABÝ and Martin VÁCHA. Cattle North-South alignment & herd density. In RIN13 Bionav -The application of animal navigation techniques in autonomous vehicles. 2013.
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Basic information
Original name Cattle North-South alignment & herd density
Name in Czech Severojizni alignment dobytka a hustota stada
Authors TOMANOVÁ, Kateřina (203 Czech Republic, guarantor, belonging to the institution), Pavel SLABÝ (203 Czech Republic, belonging to the institution) and Martin VÁCHA (203 Czech Republic).
Edition RIN13 Bionav -The application of animal navigation techniques in autonomous vehicles, 2013.
Other information
Original language English
Type of outcome Presentations at conferences
Field of Study 30105 Physiology
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/13:00068276
Organization unit Faculty of Science
Keywords (in Czech) alignment; dobytek; hustota; stado
Keywords in English alignment; cattle; density; herd
Tags International impact
Changed by Changed by: Mgr. Kateřina Tomanová, Ph.D., učo 150822. Changed: 14/5/2013 21:57.
Abstract
Alignment is a spontaneous behavioral preference of particular body orientation that may be seen in various vertebrate or invertebrate taxa. Recently, with the aid of Google Earth application and using blinded protocol we scored positions of 2235 individuals in 74 herds. Our results are in line with the original findings of prevailing North-South orientation of grazing cattle (Begall et al. 2008; Burda et al. 2009). In addition, we found that mutual distances between individual animals within herds (the density of herds) affect their North-South preference. Evaluations of both individuals and herds showed negative correlation between degree of N-S alignment and density of herds. Between aligned and non-aligned herds, the threshold distance among animals was estimated 6-8m. We reason that while getting over this distance to the nearest partner, the relatively weak tendency to keep N-S position may be overlapped by diverse social interactions in the vicinity of other members of a herd. Although we did not test the hypothesis whether the N-S alignment of cattle is truly based on a magnetic compass sense, our work confirms the phenomenon of cattle N-S alignment and shows new data giving some insight into biological significance of alignment. Supported by GACR13-11908J
Abstract (in Czech)
Alignment je spontanni projev chovani, kdy zvire preferuje urcite natoceni telni osy a toto chovani muzeme pozorovat u mnoha druhu z rad obratlovcu i bezobratlych. S pomoci aplikace Google Earth jsme slepe vyhodnotili pozice 2235 jedincu krav v 74 stadech. Nase vysledky jsou ve shode s puvodnimi zavery, ze pasouci se kravy jsou orientovany ve smeru severojizni osy (Begall et al. 2008; Burda et al. 2009). Navic jsme zjistili, ze mira severojizni orientace je ovlivnena vzajemnymi vzdalenostmi mezi zviraty ve stadu (tedy hustotou stada). Vyhodnoceni jak jedincu tak celych stad ukazalo negativni korelaci mezi stupnem S-J alignmentu a hustotou stada. Vzdalenost mezi jednotlivci, kdy se alignment jiz projevuje, jsme stanovili na 6-8m. Z vysledku usuzujeme, ze pri nizsi vzdalenosti mezi zviraty socialni interakce ve stade prehlusi tendenci k S-J alignmentu. Prestoze jsme netestovali, zda je S-J alignment dobytka zalozen na magnetorecepci, nase prace potvrzuje fenomen S-J alignmentu dobytka a odhaluje nove souvislosti tohoto projevu. Prace byla podporena z GACR13-11908J
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