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An Evolutionary History of Browsing and Grazing Ungulates

Browsing (i.e., eating woody and non-woody dicotyledonous plants) and grazing (i.e., eating grass) are distinctively different types of feeding behaviour among ungulates today. Ungulates with different diets have different morphologies (both craniodental ones and in aspects of the digestive system) and physiologies, although some of these differences are merely related to body size, as grazers are usually larger than browsers. There is also a difference in the foraging behaviour in terms of the relationship between resource abundance and intake rate,

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Does oral stereotypy in captive giraffes decrease by feeding them evergreens and barks in winter?

Recently, several zoos have aimed to improve the welfare of captive animals by adopting certain feeding enrichments, particularly to address oral stereotypy in giraffes. Research has revealed that the utilization of certain feeding enrichments, such as browsing enrichment, is effective for preventing oral stereotypy. However, feeding of browsing enrichment may be difficult in winter, although its effect is not evident in this season based on previous studies. Therefore, the weight of tree feed foraged by the giraffes and their behavior,

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Hierarchical foraging by giraffe in a heterogeneous savannah, Tanzania

Understanding foraging decisions made by wildlife at different spatio-temporal scales is important for wildlife management and conservation. We tested whether foraging decisions by Masai giraffe (Giraffa camelopardalis tippelskirchi Matschie) differed with scales; habitat, patch and tree in a heterogeneous savannah. We collected data from Arusha National Park, Tanzania, in March–May and August–October 2013. Visual observations were used to collect data on foraging behaviour. Measurements of tree height and stem height and scoring of accumulated browsing were made in 133 patches

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Feeding behaviour of Giraffe (Giraffa camelopardalis) in Mokolodi Nature Reserve, Botswana

Feeding patterns of twelve giraffes were documented during the wet season from February to April in Mokolodi Nature Reserve in southeastern Botswana. The general aim of the study was to better understand how the giraffes sustain themselves in the Reserve. More specifically the study addresses different aspects of feeding modes and feeding preferences, time allocation between different activities and differences between males and females. We used focal-animal sampling and scan sampling to obtain relevant data. It was found that the

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A preliminary investigation into comparative foraging ecology of reticulated giraffe (Giraffa camelopardalis reticulata) and domestic camels (Camelus dromedarius) in Laikipia Kenya

Female camels actively browse over a wide range of heights, from ground level up to 3 meters. Traditionally, due to their being browsers, their dispersal ability and elevated foraging level, giraffes have been thought to be able to co-exist with traditional pastoralist livestock species. However, with the introduction of the larger and taller browsing camels, could this alter the status quo, and potentially affect giraffes’ ability to co-exist with livestock? Due to time and budget constraints, this study gathered baseline

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Resource partitioning within a browsing guild in a key habitat, the Chobe Riverfront, Botswana

Resource partitioning between elephant, giraffe, kudu and impala was assessed. This was to address concerns that elephant population increase adversely affects other species through depleting their food in key areas close to permanent water. Resources considered were woody species browsed, height browsed and plant parts browsed. Animals were observed as they browsed and the plant species, browsing heights and plant parts browsed were recorded. Observations were made over 1 y and the data were divided between wet and dry season.

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Comparison of Two Diet Analysis Techniques for a Browsing Megaherbivore

Diet assessment of herbivores provides insight into trophic relationships, the potential for competition, and the influences herbivores may have on an ecosystem (Bookhout 1996). Thus, the determination of their food requirements is imperative prior to the implementation of any management decisions, which must be based on reliable data (Bookhout 1996). Direct observations and fecal analysis are 2 commonly employed techniques for assessing the diet of wild herbivores (Van Aarde and Skinner 1975, Field and Ross 1976, McInnes et al. 1983,

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