naa a22 4500 510737196 CHVBK 20180411083015.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11284-012-1006-9 doi (NATIONALLICENCE)springer-10.1007/s11284-012-1006-9 Monkey and dung beetle activities influence soil seed bank structure [Elektronische Daten] [François Feer, Jean-François Ponge, Sylvie Jouard, Doris Gomez] In Neotropical forests, dung beetles act as efficient secondary dispersers of seeds that are dispersed primarily by red howler monkeys. Here, we investigated the origins of soil seed bank variability in relation to monkey and dung beetle activity, to assess the impact of dung beetles on seed fate, and their adaptability to resource availability. This question is important to better understand the process of tree regeneration, and is especially timely in the current context of threat to primates. We characterized soil seed bank structures in sites differing in monkey frequentation, and conducted field experiments with artificial beads to monitor bead fate. We also conducted experiments on specific roller and tunneller beetle species to examine bead processing behavior and its variability among and within species. We found that seed number and diversity increased with monkey frequentation, but seed viability was optimal under moderate monkey frequentation. We showed for the first time that dung provisioning yielded higher beetle activity in sites more often visited by monkeys, which calls for further investigation to understand the mechanisms of attraction to resource and potential spatial structuration of beetle populations. Although all beetle species involved in the experiments actively excluded beads from dung reserves, selectivity was higher for small than large beetle species, and for large compared to small bead sizes. It also increased when per-capita dung resource decreased, suggesting that intraspecific competition could alter seed fate. Altogether, our results support a major role of dung beetles in soil seed bank structure and dynamics. They reveal interesting interspecific variability within the dung beetle community and a complex interplay with primary dispersal. The Ecological Society of Japan, 2012 French Guiana nationallicence Dung beetle nationallicence Forest regeneration nationallicence Howler monkey nationallicence Soil seed bank nationallicence Feer François Muséum National d'Histoire Naturelle, CNRS UMR 7179, 4 avenue du Petit-Château, 91800, Brunoy, France aut Ponge Jean-François Muséum National d'Histoire Naturelle, CNRS UMR 7179, 4 avenue du Petit-Château, 91800, Brunoy, France aut Jouard Sylvie Muséum National d'Histoire Naturelle, CNRS UMR 7179, 4 avenue du Petit-Château, 91800, Brunoy, France aut Gomez Doris Centre for Evolutionary and Functional Ecology, CNRS UMR 5175, 1919 Route de Mende, 34293, Montpellier Cedex 5, France aut Ecological Research Springer Japan 28/1(2013-01-01), 93-102 0912-3814 28:1<93 2013 28 11284 https://doi.org/10.1007/s11284-012-1006-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11284-012-1006-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Feer François Muséum National d'Histoire Naturelle, CNRS UMR 7179, 4 avenue du Petit-Château, 91800, Brunoy, France aut NATIONALLICENCE 700 1- Ponge Jean-François Muséum National d'Histoire Naturelle, CNRS UMR 7179, 4 avenue du Petit-Château, 91800, Brunoy, France aut NATIONALLICENCE 700 1- Jouard Sylvie Muséum National d'Histoire Naturelle, CNRS UMR 7179, 4 avenue du Petit-Château, 91800, Brunoy, France aut NATIONALLICENCE 700 1- Gomez Doris Centre for Evolutionary and Functional Ecology, CNRS UMR 5175, 1919 Route de Mende, 34293, Montpellier Cedex 5, France aut NATIONALLICENCE 773 0- Ecological Research Springer Japan 28/1(2013-01-01), 93-102 0912-3814 28:1<93 2013 28 11284 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer