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Leaving by staying: Social dispersal in giraffes

Dispersal is a critical process that shapes the structure of wild animal populations. In species that form multi-level societies, natal dispersal might be social (associated with a  different social community while remaining near the natal area), spatial (moving away from the natal area while continuing to associate with the same community), or both social and spatial (associating with a different community and moving away from the natal area). For such species, classical spatial measures of dispersal, such as distance moved,

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An Exploratory Study into the Influence of Sex on Body Measurements, Carcass Weights and Meat Yields of Giraffe (Giraffa camelopardalis angolensis)

Various body measurements and commercial carcass yields of relatively young (2 1/2 –6 yrs old) giraffe (Giraffa camelopardalis angolensis) were investigated to quantify the effect of sex there upon. Eight male and eight female giraffe were culled by standard practice in Namibia, where body and horn measurements were taken, before the carcasses were dressed. There were no significant differences between the mean dead weights of the two sexes (bulls = 691.1 kg; cows = 636.5 kg; p = 0.096), the

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Giraffe: Giraffa camelopardalis – Species Profile for Tasmania Zoo

This pest risk assessment was developed in accordance with Policy and Procedures for the Import, Movement and Keeping of Vertebrate Wildlife in Tasmania (DPIPWE 2011). These set out conditions and restrictions for importation of controlled animals pursuant to S32 of the Nature Conservation Act 2002. This document was prepared for DPIPWE use within the Department only. Giraffe are a natural curiosity and have been widely represented in captivity around the world for centuries. In Australia, they have been present in

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The welfare of wild animals in travelling circuses

We were asked to provide the Welsh Government with an impartial literature review and an analysis of the scientific evidence available as to whether captive wild animals in travelling circuses and other animal shows achieve their optimal welfare requirements as set out under the Animal Welfare Act 2006 and any other relevant legislation. ◆ The Animal Welfare Act 2006 makes it a criminal offence for any person responsible for an animal to fail to provide for the animal’s welfare. Under

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Experimental evidence that effects of megaherbivores on mesoherbivore space use are influenced by species’ traits

1. The extinction of 80% of megaherbivore (>1,000 kg) species towards the end of the Pleistocene altered vegetation structure, fire dynamics and nutrient cycling world-wide. Ecologists have proposed (re)introducing megaherbivores or their ecological analogues to restore lost ecosystem functions and reinforce extant but declining megaherbivore populations. However, the effects of megaherbivores on smaller herbivores are poorly understood. 2. We used long-term exclusion experiments and multispecies hierarchical models fitted to dung counts to test (a) the effect of megaherbivores (elephant and

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Comparative cognition in three understudied ungulate species: European bison, forest buffalos and giraffes

Background: Comparative cognition has historically focused on a few taxa such as primates, birds or rodents. However, a broader perspective is essential to understand how different selective pressures affect cognition in different taxa, as more recently shown in several studies. Here we present the same battery of cognitive tasks to two understudied ungulate species with different socio-ecological characteristics, European bison (Bison bonasus) and forest buffalos (Syncerus caffer nanus), and we compare their performance to previous findings in giraffes (Giraffa camelopardalis).

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Development of an image-based body condition score for giraffes Giraffa camelopardalis and a comparison of zoo-housed and free-ranging individuals

Historically, giraffes (Giraffa spp.) in zoos are known to have a high prevalence of deaths associated with serous fat atrophy, which has been linked to the impression that as browsers, they are more difficult to feed appropriately compared to grazing ruminants. Therefore, one could expect zoo-housed giraffes to be peculiar in that they might have, on average, a lower body condition than their free-ranging conspecifics. We collected photographs of free-ranging and zoo-housed individuals and used information on sex, age, body

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Interaction entre hommes et girafes dans la zone de distribution de la girafe au Niger

Cette étude qui porte sur l’interaction entre hommes et girafes a été menée dans la zone de distribution de la girafe du Niger dénommée « aire girafe ». Elle a concerné douze (12) villages répartis sur les deux (2) foyers de distribution, la zone centrale et la zone de Fandou. Au total, 218 personnes ont été enquêtées et les données comparées entre villages et entre foyers de troupeau de girafes. Les résultats montrent que les dégâts sur les cultures et

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Giraffe

Watching the distinctive rocking gait of a giraffe as it moves placidly from acacia tree to acacia tree while feeding at the end of a long hot African afternoon, head and horns poking out comically from the uppermost branches as it forages deftly and delicately among the razor-sharp thorns with a fat, purple tongue, is something we’ve been lucky enough to enjoy often during our years as professional wildlife photojournalists. You might think such familiarity had made us impervious to

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A Synopsis of the Diseases of Giraffes

This synopsis has been prepared to inform the general public about all of the extremely complex health issues facing both free-ranging and captive Giraffes with the goal in mind of hopefully interesting more people to become involved with Giraffe conservation efforts. Studies of the diseases of captive Giraffes in Zoological Gardens serve to indicate how susceptible Giraffes can be to contracting new diseases in confined mixed animal populations. Most Zoos are generally very stressing to Giraffes. It is extremely heart

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