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Population density, habitat use and activity patterns of endangered hog deer in Cambodia Royal Zoological Society of Antwerp University of Antwerp

Tim van Berkel, Willem-Jan Emsens, Sam Un Eam, Sandra Simoes, Sam Puls, Naroeun Rin, Lor Kimsan, Merlijn Jocqué
Hog deer (Axis porcinus) were once widespread throughout much of lowland Southern Asia, but numbers rapidly declined during the last two decades. In Cambodia, the species was considered extinct until 2006 when a small number of individuals (presumedly spp. annamiticus) was rediscovered along the western bank of the Mekong River, near Kratie. Since reliable data on this population are lacking, we conducted two camera trap surveys to investigate ...

Genetic determinants of individual variation in the superior temporal sulcus of chimpanzees (Pan troglodytes) Royal Zoological Society of Antwerp

William D. Hopkins, Nicky Staes, Chet C. Sherwood, Steven J. Schapiro, Brenda J. Bradley
The superior temporal sulcus (STS) is a conserved fold that divides the middle and superior temporal gyri. In humans, there is considerable variation in the shape, folding pattern, lateralization, and depth of the STS that have been reported to be associated with social cognition and linguistic functions. We examined the role that genetic factors play on individual variation in STS morphology in chimpanzees. The surface area and depth of the STS ...

Dominance or Tolerance? Causes and consequences of a period of increased intercommunity encounters among bonobos (Pan paniscus) at LuiKotale Royal Zoological Society of Antwerp

Liza R. Moscovice, Gottfried Hohmann, Benjamin C. Trumble, Barbara Fruth, Adrian Jaeggi V
Group-living primates exhibit variable reactions to intergroup encounters (or IGEs), reflecting species-specific strategies and individual motivations. In chimpanzees (Pan troglodytes), dominating in IGEs provides fitness benefits. Less is known about responses to IGEs in bonobos (Pan paniscus) despite their equal relevance for understanding the origins of human intergroup relations. We observed the Bompusa West (WBp) bonobo community at ...

Coupled forest zoning and agricultural intervention yields conflicting outcomes for tropical forest conservation in the Democratic Republic of the Congo (DRC) Royal Zoological Society of Antwerp University of Antwerp Ghent University

Janet Nackoney, M. Demol, H. A. Akpona, Marijn Bauters, P. Boeckx, Jef Dupain, C. Facheux, M. C. Hansen, J-C Kalemba, A. G. Kehbila, et al.
Agricultural intensification and forest conservation are often seen as incompatible. Agricultural interventions can help boost food security for poor rural communities but in certain cases can exacerbate deforestation, known as the rebound effect. We tested whether coupling agricultural interventions with participatory forest zoning could improve food security and promote forest conservation in the Democratic Republic of the Congo. Simple ...

Drivers of Dyadic Cofeeding Tolerance in Pan: A Composite Measure Approach Royal Zoological Society of Antwerp University of Antwerp

Nicky Staes, Kim Vermeulen, Edwin van Leeuwen, Jonas Verspeek, Jonas Torfs, Marcel Eens, Jeroen Stevens

This study aimed to construct a composite model of Dyadic Cofeeding Tolerance (DCT) in zoo-housed bonobos and chimpanzees using a validated experimental cofeeding paradigm and to investigate whether components resulting from this model differ between the two species or vary with factors such as sex, age, kinship and social bond strength. Using dimension reduction analysis on five behavioral variables from the experimental paradigm (proximity, ...

Datasets for assessing the structure and drivers of biological sounds Royal Zoological Society of Antwerp

Johan Diepstraten, James Kuemo Kuenbou, Jacob Willie

Obtaining and analysing sound data can be a tedious and lengthy process. We present sound data consisting of 20,485 1 min sound recordings obtained in three sites within a rainforest landscape in southeast Cameroon. The sites differ in anthropogenic disturbance. We also present meta data corresponding to these recordings with the identification of all animal vocalisations in each 1 min sound recording. Additionally, we provide a raw database ...

Orostylis gen. nov., a new genus of Dalytyphloplanida with seven new species (Platyhelminthes: Rhabdocoela) Royal Zoological Society of Antwerp Hasselt University

Stefan Gobert, Werner Armonies, Yander L. Diez, Philippe Jouk, Marlies Monnens, Nathalie Revis, Patrick C. Reygel, Julian Smith III, Niels Van Steenkiste, Tom J. Artois, et al.
We describe a new genus of dalytyphloplanid rhabdocoels, with seven new species. Orostylis gen. nov. has a unique combination of characters including the presence of a sclerotised stylet, an anteriorly positioned male copulatory organ with the male genital pore in the buccal cavity, and the absence of an oviduct. The ovary empties directly into the intestinal lumen. Orostylis dohae sp. nov., Orostylis asinaraensis sp. nov., Orostylis caecus sp. ...

Strong conditionality in plant-fungal community assembly after soil inoculation in post-agricultural grasslands Royal Zoological Society of Antwerp University of Antwerp

Willem-Jan Emsens, Maartje de Weyer, Ivette Fuentes, Yvonne Liczner, Rudy van Diggelen, Erik Verbruggen
Soil inoculation from plant species-rich into species-poor grasslands may enable the establishment of self-facilitating networks between microbes and vegetation, thereby steering ecosystem development. We conducted a three-year experiment that covered a wide range of post-agricultural grasslands to determine how succession is affected by the interactive effects of edaphic properties, grass layer removal and hay or soil fragment transfer from a ...