Received: JanuAccepted: JPublished: July 22, 2021Ĭopyright: © 2021 Potter et al. PLoS ONE 16(7):Įditor: Cristina Armas, Estacion Experimental de Zonas Aridas, SPAIN Our findings suggest that, at this high-rainfall site, large mammalian herbivores constrained the developmental trajectory of plant communities across the growing season.Ĭitation: Potter AB, Ali Imron M, Pudyatmoko S, Hutchinson MC (2021) Short-term plant-community responses to large mammalian herbivore exclusion in a rewilded Javan savanna. Moreover, exclusion of large mammalian herbivores led to divergence in the plant species composition of exclosures compositional dissimilarity between herbivore-exclusion plots was higher than between plots exposed to large mammalian herbivores. Our results suggest that heavy grazing pressure by native large mammalian herbivores controlled the composition of the herbaceous plant community. tora) appeared to benefit most from herbivore release. Notably, however, two weedy plant species (one native, Imperata cylindrica and one introduced, Senna cf. Effects of herbivore exclusion on plant species richness, evenness, and biomass per quadrat were generally weak. Where large mammalian herbivores were excluded, herbaceous plant communities contained more non-grasses and were less similar diverging in their composition as the growing season progressed. We erected large-herbivore exclosures in Alas Purwo National Park, Java, Indonesia where rainfall is high and fire is suppressed to test how herbivores impact plant community development across the growing season. We present the findings of a short-term experiment that investigated the effects of herbivory in a fertile, humid, and semi-managed savanna. Many studies have examined the impacts of large mammalian herbivores on herbaceous plant communities, but few of these studies have been conducted in humid, fertile savannas. Grassy biomes such as savannas are maintained by an interacting suite of ecosystem processes from herbivory to rainfall to fire.
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