| dietary plasticity of generalist and specialist ungulates in the namibian desert: a stable isotopes approach. | desert ungulates live in adverse ecosystems that are particularly sensitive to degradation and global climate change. here, we asked how two ungulate species with contrasting feeding habits, grazing gemsbok (oryx g. gazella) and browsing springbok (antidorcas marsupialis), respond to an increase in food availability during a pronounced rain period. we used a stable isotope approach to delineate the feeding habits of these two ungulates in the arid kunene region of namibia. our nineteen months fi ... | 2013 | 23977249 |
| individual variation of isotopic niches in grazing and browsing desert ungulates. | ungulates often adjust their diet when food availability varies over time. however, it is poorly understood when and to what extent individuals change their diet and, if they do so, if all individuals of a population occupy distinct or similar dietary niches. in the arid namibian kunene region, we studied temporal variations of individual niches in grazing gemsbok (oryx gazella gazella) and predominantly browsing springbok (antidorcas marsupialis). we used variation in stable c and n isotope rat ... | 2015 | 25953117 |