@misc{FotangDuttonBroeringetal., author = {Fotang, Chefor and Dutton, Paul and Br{\"o}ring, Udo and Roos, Christian and Willie, Jacob and Angwafo, Tsi Evaristus and Chuo, Mvo Denis and Kamgang, Serge Alexis and Enoguanbhor, Evidence Chinedu and Schierack, Peter and Birkhofer, Klaus}, title = {Tool use by Nigeria-Cameroon chimpanzees for driver ant predation in Kom-Wum Forest Reserve, North-West Region Cameroon}, series = {Folia Primatologica}, volume = {94}, journal = {Folia Primatologica}, number = {1}, issn = {1421-9980}, doi = {10.1163/14219980-bja10006}, pages = {73 -- 85}, abstract = {Chimpanzees feed on driver ants (Dorylus sp.) using different tools and predation techniques that vary among populations and can be affected by availability of ant species as well as ecological and social-learning factors. At the Kom-Wum Forest Reserve (KWFR) in Cameroon, we investigated tool use behavior in Nigerian-Cameroon chimpanzees (Pan troglodytes ellioti), examining the characteristics of tools used in driver ant predation, looking for possible seasonal patterns and comparing our results to those from other study sites. We recovered 83 tools along line transects and recces (reconnaissance) during two seasons. We found that chimpanzees used tools with blunting and dirty ends (possible digging and probing tools) and tools without (dipping tools), in driver ant predation. Tools with dirty ends tended to be thicker (N = 52), and thinner tools were less likely to have dirt (N = 31). Tools recovered in the wet season (N = 62), were significantly shorter and thicker than those recovered in the dry season (N = 21). Furthermore, driver ant tools recovered at KWFR are on average the longest yet recorded insect dipping tools for chimpanzees comparable to those used in North Uele. We found no evidence of nut-cracking, tool use for honey bee nor termite consumption and did not observe the potential prey remains in chimpanzee faeces despite their presence in the reserve. Our results suggest that seasonality significantly contributes to a divergence in the form of tools selected for driver ant predation.}, language = {en} } @misc{FotangBroeringRoosetal., author = {Fotang, Chefor and Br{\"o}ring, Udo and Roos, Christian and Dutton, Paul and T{\´e}donzong, Luc R. D. and Willie, Jacob and Angwafo, Tsi Evaristus and Yuh, Yisa Ginath and Schierack, Peter and Birkhofer, Klaus}, title = {Mapping suitable habitat for Nigeria-Cameroon chimpanzees in Kom-Wum Forest Reserve, North-Western Cameroon}, series = {Primates}, journal = {Primates}, number = {25}, issn = {1610-7365}, doi = {10.1007/s10329-023-01054-z}, abstract = {Great apes lose suitable habitats required for their reproduction and survival due to human activities across their distribution range in Africa. Little is known about habitat suitability of the Nigeria-Cameroon chimpanzee [Pan troglodytes ellioti (Matschie, 1914)], particularly for populations inhabiting forest reserves in North-West Cameroon. To address this knowledge gap, we employed a common species distribution model (MaxEnt) to map and predict suitable habitats for the Nigeria-Cameroon chimpanzee in Kom-Wum Forest Reserve, North-West Cameroon, based on environmental factors that potentially affect habitat suitability. We related these environmental factors to a dataset of chimpanzee occurrence points recorded during line transect and reconnaissance (recce) surveys in the forest reserve and surrounding forests. Up to 91\% of the study area is unsuitable for chimpanzees. Suitable habitats only represented 9\% of the study area, with a high proportion of highly suitable habitats located outside the forest reserve. Elevation, secondary forests density, distance to villages and primary forests density were the most important predictors of habitat suitability for the Nigeria-Cameroon chimpanzee. The probability of chimpanzee occurrence increased with elevation, secondary forest density and distance from villages and roads. Our study provides evidence that suitable chimpanzee habitat in the reserve is degraded, suggesting that efforts to maintain protected areas are insufficient. The reserve management plan needs to be improved to conserve the remaining suitable habitat and to avoid local extinction of this endangered subspecies.}, language = {en} } @misc{TlusteBirkhofer, author = {Tluste, Claudia and Birkhofer, Klaus}, title = {The Roman snail (Gastropoda: Helicidae) is not a generalist herbivore, but shows food preferences for Urtica dioica and plant litter}, series = {Journal of Natural History}, volume = {57}, journal = {Journal of Natural History}, number = {13-16}, issn = {1464-5262}, doi = {10.1080/00222933.2023.2203335}, pages = {758 -- 770}, language = {en} } @misc{UlrichBataryBaudryetal., author = {Ulrich, Werner and Bat{\´a}ry, P{\´e}ter and Baudry, Julia and Beaumelle, L{\´e}a and Bucher, Roman and Čerevkov{\´a}, Andrea and Garcia de la Riva, Enrique and Felipe-Lucia, Maria R. and Gall{\´e}, Robert and Kesse-Guyot, Emmanuelle and Rembiałkowska, Ewa and Rusch, Adrien and Stanley, Dara A. and Birkhofer, Klaus}, title = {From biodiversity to health: Quantifying the impact of diverse ecosystems on human well-being}, series = {People and Nature}, volume = {5}, journal = {People and Nature}, number = {1}, issn = {2575-8314}, doi = {10.1002/pan3.10421}, pages = {69 -- 83}, language = {en} } @misc{DampteyDjoudiBirkhofer, author = {Damptey, Frederick Gyasi and Djoudi, El Aziz and Birkhofer, Klaus}, title = {Effects of post-mining forest restoration and alternative land uses on ground-dwelling arthropods in Ghana}, series = {Community Ecology}, volume = {24}, journal = {Community Ecology}, issn = {1588-2756}, doi = {10.1007/s42974-023-00144-8}, pages = {215 -- 228}, language = {en} } @misc{KhumKošuličBirkhoferetal., author = {Khum, Warbota and Košulič, Ondřej and Birkhofer, Klaus and Michalko, Radek}, title = {The invasive pathogenic fungus Hymenoscyphus fraxineus alters predator-herbivore-ash food webs.}, series = {Biological Invasions}, journal = {Biological Invasions}, number = {25}, issn = {1573-1464}, doi = {10.1007/s10530-022-02900-9}, pages = {125 -- 131}, language = {de} } @misc{GarciadelaRivaUlrichBataryetal., author = {Garcia de la Riva, Enrique and Ulrich, Werner and Bat{\´a}ry, P{\´e}ter and Baudry, Julia and Beaumelle, L{\´e}a and Bucher, Roman and Čerevkov{\´a}, Andrea and Felipe-Lucia, Maria R. and Gall{\´e}, Robert and Kesse-Guyot, Emmanuelle and Rembiałkowska, Ewa and Rusch, Adrien and Seufert, Verena and Stanley, Dara A. and Birkhofer, Klaus}, title = {From functional diversity to human well-being: A conceptual framework for agroecosystem sustainability}, series = {Agricultural Systems}, volume = {208}, journal = {Agricultural Systems}, issn = {1873-2267}, doi = {10.1016/j.agsy.2023.103659}, pages = {16}, language = {en} }