@phdthesis{Broering, author = {Br{\"o}ring, Udo}, title = {Analyse der Heteropterengemeinschaften von s{\"u}ßen und brackigen Gew{\"a}ssern auf k{\"u}stennahen D{\"u}neninseln}, url = {http://nbn-resolving.de/http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:kobv:co1-opus-1553}, language = {de} } @inproceedings{WieglebBroeringGnaucketal., author = {Wiegleb, Gerhard and Br{\"o}ring, Udo and Gnauck, Albrecht and Brux, Holger and Luther, B.}, title = {Long-Term Prediction of Macrophyte Community Development in Lowland Streams Using Artificial Neural Networks}, series = {Modellierung und Simulation von {\"O}kosystemen, Workshop K{\"o}lpinsee 2013}, booktitle = {Modellierung und Simulation von {\"O}kosystemen, Workshop K{\"o}lpinsee 2013}, editor = {Thinh, Nguyen Xuan}, publisher = {Rhombos-Verlag}, address = {Berlin}, isbn = {978-3-944101-98-9}, pages = {217 -- 238}, language = {en} } @misc{DemarsWieglebHarperetal., author = {Demars, Beno{\^i}t O. L. and Wiegleb, Gerhard and Harper, David M. and Br{\"o}ring, Udo and Brux, Holger and Herr, Wolfgang}, title = {Aquatic plant dynamics in lowland river networks: connectivity, management and climate change}, series = {Water}, volume = {6}, journal = {Water}, number = {4}, issn = {2073-4441}, doi = {10.3390/w6040868}, pages = {868 -- 911}, language = {en} } @misc{WieglebBroeringFilettietal., author = {Wiegleb, Gerhard and Br{\"o}ring, Udo and Filetti, Mirko and Brux, Holger and Herr, Wolfgang}, title = {Long-term dynamics of macrophyte dominance and growth form types in two northwest German lowland streams}, series = {Freshwater Biology}, volume = {59}, journal = {Freshwater Biology}, number = {5}, issn = {0046-5070}, pages = {1012 -- 1023}, language = {en} } @misc{WieglebBroeringChoietal., author = {Wiegleb, Gerhard and Br{\"o}ring, Udo and Choi, Gyewoon and Dahms, Hans-Uwe and Kanongdate, Kamalaporn and Byeon, Chan-Woo and Ler, Lian Guey}, title = {Ecological restoration as precaution and not as restitutional compensation}, series = {Biodiversity and Conservation}, volume = {22}, journal = {Biodiversity and Conservation}, number = {9}, issn = {1572-9710}, pages = {1931 -- 1948}, language = {en} } @incollection{WieglebBroering, author = {Wiegleb, Gerhard and Br{\"o}ring, Udo}, title = {Leitbilder und Leitbildentwicklung in der naturschutzfachlichen Praxis}, series = {Handbuch der Umweltwissenschaften : VI-3.11}, booktitle = {Handbuch der Umweltwissenschaften : VI-3.11}, editor = {Fr{\"a}nzle, Otto and M{\"u}ller, F. and Schr{\"o}der, W.}, publisher = {ecomed}, address = {Landsberg}, pages = {1 -- 13}, language = {de} } @incollection{BroeringWiegleb, author = {Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Assessing Biodiversity in SEA}, series = {Implementing Strategic Environmental Assessment}, booktitle = {Implementing Strategic Environmental Assessment}, editor = {Schmidt, Michael and Jo{\~a}o, Elsa and Albrecht, Eike}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-20562-4}, pages = {523 -- 538}, language = {en} } @incollection{WieglebBroering, author = {Wiegleb, Gerhard and Br{\"o}ring, Udo}, title = {Biodiversity programmes on global, European and national level related to SEA}, series = {Implementing Strategic Environmental Assessment}, booktitle = {Implementing Strategic Environmental Assessment}, editor = {Schmidt, Michael and Jo{\~a}o, Elsa and Albrecht, Eike}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-20562-4}, pages = {539 -- 554}, language = {en} } @incollection{BroeringFelinksWiegleb, author = {Br{\"o}ring, Udo and Felinks, Birgit and Wiegleb, Gerhard}, title = {Leitbilder f{\"u}r naturnahe Bereiche der Niederlausitzer Bergbaufolgelandschaft}, series = {Die Ver{\"a}nderung der Kulturlandschaft : Nutzungen - Sichtweisen - Planungen}, booktitle = {Die Ver{\"a}nderung der Kulturlandschaft : Nutzungen - Sichtweisen - Planungen}, editor = {Bayerl, G{\"u}nter and Meyer, Torsten}, publisher = {Waxmann}, address = {M{\"u}nster}, isbn = {3-8309-1315-X}, pages = {319 -- 340}, language = {de} } @misc{BroeringWiegleb, author = {Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Soil zoology II: Colonization, distribution and abundance of terrestrial Heteroptera in open landscapes of former brown coal mining areas}, series = {Ecological Engineering}, volume = {24}, journal = {Ecological Engineering}, number = {1-2}, issn = {1872-6992}, doi = {10.1016/j.ecoleng.2004.12.015}, pages = {135 -- 147}, language = {en} } @misc{BroeringMrzljakNiedringhausetal., author = {Br{\"o}ring, Udo and Mrzljak, Jadranka and Niedringhaus, Rolf and Wiegleb, Gerhard}, title = {Soil zoology I: Arthropod communities in open landscapes of former brown coal mining areas}, series = {Ecological Engineering}, volume = {24}, journal = {Ecological Engineering}, number = {1-2}, issn = {1872-6992}, doi = {10.1016/j.ecoleng.2004.12.012}, pages = {121 -- 133}, language = {en} } @misc{WieglebBroering, author = {Wiegleb, Gerhard and Br{\"o}ring, Udo}, title = {The position of epistemological emergentism in ecology}, series = {Senckenbergiana Maritima}, volume = {27}, journal = {Senckenbergiana Maritima}, number = {3-6}, issn = {0080-889X}, pages = {179 -- 193}, language = {en} } @misc{BroeringSchulzWiegleb, author = {Br{\"o}ring, Udo and Schulz, Friederike and Wiegleb, Gerhard}, title = {Niederlausitzer Bergbaufolgelandschaft: Erarbeitung von Leitbildern und Handlungskonzepten f{\"u}r die verantwortliche Gestaltung und nachhaltige Entwicklung ihrer naturnahen Bereiche}, series = {Zeitschrift f{\"u}r {\"O}kologie und Naturschutz}, volume = {4}, journal = {Zeitschrift f{\"u}r {\"O}kologie und Naturschutz}, number = {3}, issn = {0940-5178}, pages = {176 -- 178}, language = {de} } @incollection{WieglebVorwaldBroering, author = {Wiegleb, Gerhard and Vorwald, J{\"o}rn and Br{\"o}ring, Udo}, title = {Synoptische Einf{\"u}hrung in das Thema "Bewertung im Rahmen der Leitbildmethode"}, series = {Naturschutzfachliche Bewertung im Rahmen der Leitbildmethode}, booktitle = {Naturschutzfachliche Bewertung im Rahmen der Leitbildmethode}, editor = {Wiegleb, Gerhard and Schulz, Friederike and Br{\"o}ring, Udo}, publisher = {Physica-Verlag}, address = {Heidelberg [u.a.]}, isbn = {3-7908-1174-2}, pages = {1 -- 14}, language = {de} } @incollection{BroeringWiegleb, author = {Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Ecological orientors: Pattern and process of succession in relation to ecological orientors}, series = {Eco targets, goal functions, and orientors}, booktitle = {Eco targets, goal functions, and orientors}, editor = {M{\"u}ller, Felix and Leupelt, Maren}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-63679-X}, pages = {34 -- 62}, language = {en} } @incollection{MrzljakBroeringBorriesetal., author = {Mrzljak, Jadranka and Br{\"o}ring, Udo and Borries, J{\"u}rgen and Geipel, Karl-Heinz and Grondtke, Andr{\´e} and Hofmann, Werner and Ohm, Britta and Rusch, Joachim and Wiegleb, Gerhard}, title = {Muster von Artenzusammensetzungen von Wirbellosen in Offenlandbereichen der Bergbaufolgelandschaft}, series = {Naturschutz in Bergbaufolgelandschaften - Landschaftsanalyse und Leitbildentwicklung}, booktitle = {Naturschutz in Bergbaufolgelandschaften - Landschaftsanalyse und Leitbildentwicklung}, editor = {Wiegleb, Gerhard and Br{\"o}ring, Udo and Mrzljak, Jadranka and Schulz, Friederike}, publisher = {Physica-Verlag}, address = {Heidelberg}, isbn = {3-7908-1279-X}, pages = {230 -- 246}, language = {de} } @incollection{BroeringWiegleb, author = {Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Leitbilder in Naturschutz und Landschaftspflege}, series = {Handbuch Naturschutz und Landschaftspflege : V-1.2}, booktitle = {Handbuch Naturschutz und Landschaftspflege : V-1.2}, editor = {Konold, Werner and B{\"o}cker, Reinhard and Hampicke, Ulrich}, publisher = {ecomed}, address = {Landsberg}, pages = {1 -- 11}, language = {de} } @incollection{SchulzBroeringWiegleb, author = {Schulz, Friederike and Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Leitbildentwicklung und Handlungskonzepte f{\"u}r naturnahe Bereiche der Bergbaufolgelandschaft - Ergebnisse des BMBF-Verbundvorhabens LENAB}, series = {Landschaften des Mitteldeutschen und Lausitzer Braunkohlentagebaus}, booktitle = {Landschaften des Mitteldeutschen und Lausitzer Braunkohlentagebaus}, address = {Bonn}, pages = {31 -- 40}, language = {de} } @inproceedings{MrzljakBroeringFelinksetal., author = {Mrzljak, Jadranka and Br{\"o}ring, Udo and Felinks, Birgit and Wiegleb, Gerhard}, title = {Ein Verfahren zur Erfolgskontrolle im Naturschutz: Biotophybride}, series = {Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie, Ulm 1998}, booktitle = {Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie, Ulm 1998}, publisher = {Gesellschaft f{\"u}r {\"O}kologie}, address = {Berlin}, isbn = {3-8274-0785-0}, pages = {563 -- 570}, language = {de} } @misc{BroeringWiegleb, author = {Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Seltene und gef{\"a}hrdete Wanzen (Heteroptera) in Offenlandbereichen der Niederlausitzer Bergbaufolgelandschaft}, series = {Naturschutz und Landschaftspflege in Brandenburg}, volume = {8}, journal = {Naturschutz und Landschaftspflege in Brandenburg}, number = {2}, issn = {0942-9328}, pages = {60 -- 63}, language = {de} } @inproceedings{BroeringSchulzStierandetal., author = {Br{\"o}ring, Udo and Schulz, Friederike and Stierand, R. and Vorwald, J{\"o}rn and Wiegleb, Gerhard}, title = {Die Leitbildmethode als Planungsmethode - Errungenschaften und Defizite}, series = {Tagungsband zum Workshop die Leitbildmethode als Planungsmethode}, booktitle = {Tagungsband zum Workshop die Leitbildmethode als Planungsmethode}, publisher = {BTU Cottbus, Fakult{\"a}t Umweltwissenschaften und Verfahrenstechnik}, address = {Cottbus}, pages = {146 -- 152}, language = {de} } @inproceedings{DenkingerBroeringMrzljaketal., author = {Denkinger, Petra and Br{\"o}ring, Udo and Mrzljak, Jadranka and Wiegleb, Gerhard}, title = {Biodiversity of plants and phytophages in postmining landscapes of Lower Lusatia}, series = {Biodiversity - from patterns to processes, Halle/Saale vom 8. - 12.9.2003}, booktitle = {Biodiversity - from patterns to processes, Halle/Saale vom 8. - 12.9.2003}, publisher = {Verl. Die Werkstatt}, address = {G{\"o}ttingen}, isbn = {3-89533-439-1}, pages = {S. 79}, language = {en} } @inproceedings{WieglebBroeringMrzljaketal., author = {Wiegleb, Gerhard and Br{\"o}ring, Udo and Mrzljak, Jadranka and Grondtke, Andr{\´e} and Saure, C.}, title = {Inventarization, assessment and management of arthropod diversity in post mining landscapes of Lower Lusatia (Brandenburg, Germany)}, series = {Book of abstracts, proceedings of the 6th European Congress of Entomology, Česk{\´e} Budějovice}, booktitle = {Book of abstracts, proceedings of the 6th European Congress of Entomology, Česk{\´e} Budějovice}, publisher = {Institute of Entomology}, address = {Česk{\´e} Budějovice}, language = {en} } @incollection{BroeringWannerWiegleb, author = {Br{\"o}ring, Udo and Wanner, Manfred and Wiegleb, Gerhard}, title = {Biodiversit{\"a}t und Sukzession in der Bergbaufolgelandschaft}, series = {Entwicklung der Biodiversit{\"a}t in der Bergbaufolgelandschaft im Gef{\"u}ge von {\"O}kologie und Sozio{\"o}konomie}, booktitle = {Entwicklung der Biodiversit{\"a}t in der Bergbaufolgelandschaft im Gef{\"u}ge von {\"O}kologie und Sozio{\"o}konomie}, editor = {Br{\"o}ring, Udo and Wanner, Manfred}, publisher = {UWV, BTU Cottbus}, address = {Cottbus}, pages = {5 -- 16}, language = {de} } @inproceedings{RathkeBroeringWiegleb, author = {Rathke, D. and Br{\"o}ring, Udo and Wiegleb, Gerhard}, title = {Population structure of Apodemus sylvaticus in the postmining landscape of Lower Lusatia}, series = {Biodiversity - from patterns to processes, Halle/Saale vom 8. - 12.9.2003}, booktitle = {Biodiversity - from patterns to processes, Halle/Saale vom 8. - 12.9.2003}, publisher = {Verl. Die Werkstatt}, address = {G{\"o}ttingen}, isbn = {3-89533-439-1}, pages = {S. 514}, language = {en} } @misc{WieglebHerrZanderetal., author = {Wiegleb, Gerhard and Herr, Wolfgang and Zander, B{\"a}rbel and Br{\"o}ring, Udo and Brux, Holger and Weyer, Klaus van de}, title = {Natural variation of macrophyte vegetation in lowland streams at the regional level}, series = {Limnologica}, journal = {Limnologica}, number = {vol. 51}, issn = {1873-5851}, doi = {doi:10.1016/j.limno.2014.12.005}, pages = {53 -- 62}, language = {en} } @inproceedings{DianghaWieglebBroeringetal., author = {Diangha, Mercy Nambu and Wiegleb, Gerhard and Br{\"o}ring, Udo and Fotso, Roger}, title = {Deng Deng National Park as a potential habitat for forest elephant (Loxodonta cyclotis) and buffalo (Syncerus caffer nanus)}, series = {Contributions to the 10th International Conference on Behavior, Physiology and Genetics of Wildlife, september 28th - october 1st, 2015, Berlin, Germany}, booktitle = {Contributions to the 10th International Conference on Behavior, Physiology and Genetics of Wildlife, september 28th - october 1st, 2015, Berlin, Germany}, editor = {Schumann, Anke and Fickel, J{\"o}rns and Hofer, Heribert}, publisher = {European Association for Zoos and Aquaria}, address = {Amsterdam}, pages = {S. 49}, language = {en} } @misc{TlusteBroeringNěmecetal., author = {Tluste, Claudia and Br{\"o}ring, Udo and Němec, Tom{\´a}š and Birkhofer, Klaus}, title = {Morphometric traits of shells determine utilization marks in the Roman Snail in eastern Germany}, series = {Web Ecology}, volume = {20}, journal = {Web Ecology}, number = {2}, issn = {1399-1183}, doi = {10.5194/we-20-87-2020}, pages = {87 -- 94}, abstract = {Overexploitation, habitat destruction and a changing climate threaten populations of the Roman snail(Helix pomatiaLinnaeus, 1758), which has led to a high protection status in Germany. Vertebrate and inver-tebrate predators, including parasites and facultative parasitoids, further cause pressure on populations. Giventhe conservation concern forH. pomatiaand its rarity in the study region (Cottbus, Germany), we studied howpredators and facultative parasitoids utilizeH. pomatiashells with a focus on non-invasive field methods. As pre-vious studies indicated that shell size may affect prey selection by predators, morphometric traits were measuredin eight subpopulations. We identified the total number and percentage ofH. pomatiashells that showed externalattack marks by predators and internal utilization marks by Diptera pupae and related those utilization patternsto the morphometric traits of shells. A large proportion of the shells in local subpopulations showed signs ofexternal attack and internal utilization, and both utilization forms were positively correlated. External attacks bypredators were more frequent in larger shells and internal utilization by Diptera was more common in shells withhigher body density. These results suggest a considerable pressure by predators and potential facultative para-sitoids onH. pomatiapopulations in the study area. Future research should focus on the relationship betweensnails from the family Helicidae and flies from the genusDiscomyza. Conservation programmes should considerabiotic habitat conditions together with potential trophic interactions to maximize the success of conservationstrategies}, language = {en} } @misc{FotangBroeringRoosetal., author = {Fotang, Chefor and Br{\"o}ring, Udo and Roos, Christian and Enoguanbhor, Evidence Chinedu and Dutton, Paul and T{\´e}donzong, Luc R. D. and Willie, Jacob and Yuh, Yisa Ginath and Birkhofer, Klaus}, title = {Environmental and anthropogenic effects on the nesting patterns of Nigeria-Cameroon chimpanzees in North-West Cameroon}, series = {American Journal of Primatology}, volume = {83}, journal = {American Journal of Primatology}, number = {9}, issn = {1098-2345}, doi = {10.1002/ajp.23312}, pages = {12}, abstract = {Environmental conditions and human activity influence the selection of nest sites by chimpanzees and may have serious conservation implications. We examined the characteristics of nesting trees preferred by chimpanzees, investigated the effect of vegetation composition and topography on nest site locations and seasonality on nesting heights of chimpanzees, and verified the effect of predator occurrence and human activity on the nesting behavior of the Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti) in Kom-Wum Forest Reserve (KWFR) and surrounding unprotected forest in Cameroon. We recorded 923 nests, 502 signs of human activity, and 646 nesting trees along line transects and recces (reconnaissance) for two seasons. We found that chimpanzees constructed more arboreal nests on tall primary trees with high lowest branch height and large diameter at breast height. Moreover, they oriented their nests within trees in the slope direction when the nesting trees were located on slopes. Additionally, the occurrence of chimpanzee nests was positively related to increasing elevation and slope and decreased with distance to primary forest. In contrast, the number of nests increased with distance to secondary forest, open land, and villages, and nesting height was not influenced by seasons. While we recorded no signs of large nocturnal chimpanzee predators at nesting trees, we found signs of hunting activity at nesting locations. Nesting high in trees is likely a way of avoiding hunting, while nest orientation within trees in slope direction shortens escape routes from human hunters. Our findings suggest that chimpanzees select safe trees (tall trees with high lowest branch height) located in nesting areas (primary forest, high elevation, and steep slopes) that are not easily accessible by humans. Therefore, conservation efforts should focus on protecting primary forests at high elevation and steep slopes and reducing human impact.}, language = {en} } @misc{PreusserBroeringFischeretal., author = {Preußer, Daniel and Br{\"o}ring, Udo and Fischer, Thomas and Juretzek, Thomas}, title = {Effects of antibiotics ceftriaxone and levofloxacin on the growth of Calliphora vomitoria L. (Diptera: Calliphoridae) and effects on the determination of the post-mortem interval}, series = {Journal of Forensic and Legal Medicine}, volume = {81}, journal = {Journal of Forensic and Legal Medicine}, number = {5}, issn = {1878-7487}, doi = {10.1016/j.jflm.2021.102207}, abstract = {The determination of the post-mortem interval (PMI) is one of the main tasks of forensic entomology, where growth and stages of development of arthropods are used for PMI determination. It is well acknowledged that maggot development is significantly influenced by temperature. Attention has also been paid to the microbial populations of the cadaver, because toxic substances contained in the substrate can influence the microorganisms and affect arthropods growth and development. However, little is known about the influence of antibiotics taken during lifetime of a person on insect development after that persons death. The aim of this study was to test the hypothesis that the antibiotics ceftriaxone and levofloxacin cause inhibition of growth and delay of pupation of the blow fly Calliphora vomitoria, which would then lead to an incorrect determination of the post-mortem interval in forensic cases. It was found that maggot development was delayed by levofloxacin mixed in minced pork, where a mixture of both antibiotics increased this effect. The maggot growth in the samples with ceftriaxone was not delayed. Pupation was delayed in treatments with a mixture of both antibiotics. The mortality was reduced by separate or combined application of ceftriaxone and levofloxacin, which we attribute to a bactericidal effect of the antibiotics on maggot pathogens. Depending on the concentration of the antibiotics, an underestimation of the post-mortem interval between 24 and 48 h could be suspected. We conclude that antibiotics need to be considered if instar stages are to be used to determine the PMI and that some antibiotics may improve the breeding conditions of maggots.}, language = {en} } @misc{FotangBroeringRoosetal., author = {Fotang, Chefor and Br{\"o}ring, Udo and Roos, Christian and Enoguanbhor, Evidence Chinedu and E. Abwe, Ekwoge and Dutton, Paul and Schierack, Peter and Angwafo, Tsi Evaristus and Birkhofer, Klaus}, title = {Human activity and forest fragmentation threaten populations of the Nigeria-Cameroon Chimpanzee (Pan troglodytes ellioti) in Western Cameroon}, series = {International Journal of Primatology}, volume = {42}, journal = {International Journal of Primatology}, number = {1}, issn = {1573-8604}, doi = {10.1007/s10764-020-00191-2}, pages = {105 -- 129}, abstract = {Increased human activities such as commodity-led deforestation, extension of agriculture, urbanization, and wildfires are major drivers of forest loss worldwide. In Cameroon, these activities cause a loss of suitable primate habitat and could ultimately threaten the survival of chimpanzees (Pan troglodytes). We derived independent estimates of the population size of the Endangered Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti) in Kom-Wum Forest Reserve, Cameroon, and surrounding unprotected forest areas through 1) direct observations, 2) camera trapping, 3) distance sampling, 4) marked nest counts, and 5) standing crop nest counts. In addition, we georeferenced signs of chimpanzee and human activity along line transects. We used a generalized linear mixed model to predict the occurrence of chimpanzees in response to edge length (measured as the perimeter of core forest patches), core area of forest patches (measured as area of forest patches beyond an edge width of 100 m), habitat perforation (measured as the perimeter of nonforested landscape within core forest patches), patch size(measured as area of forest patches), and forest cover. Chimpanzee density estimates ranged from 0.1 (direct observation) to 0.9 (distance sampling) individuals km-2 depending on estimation method with a mean nest group size of 7 ± 5.4 (SD). The mean encounter rate for signs of chimpanzee activity was significantly higher in mature forests (2.3 signs km-1) than in secondary forests (0.3 signs km-1) and above 1000 m elevation (4.0 signs km-1) than below 1000 m (1.0 signs km-1). The mean encounter rate for signs of human activity was significantly higher in secondary (8.0 signs km-1) than in mature forests (0.9 signs km-1). Secondary forests, habitat perforation, and edge length had a significant negative effect on the occurrence of chimpanzee signs. Overall, human activity and forest degradation affected the number of observed chimpanzee signs negatively. Regular antipoaching patrols and reforestation programs in degraded areas could potentially reduce threats to populations of endangered species and may increase suitable habitat area.}, language = {en} } @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} } @inproceedings{BalkenholBroeringDenkingeretal., author = {Balkenhol, Birgit and Br{\"o}ring, Udo and Denkinger, Petra and D{\"u}ker, Christian and Durka, Walter and Gebhardt, Sascha and G{\"u}th, Mareike and Heyde, K. and H{\"u}ttl, Reinhard F. and Mrzljak, Jadranka and M{\"u}nzenberger, Babette and Peschel, Tim and Voigtl{\"a}nder, Karin and W{\"o}llecke, Jens and Xylander, Willi E. R. and Wiegleb, Gerhard}, title = {SUBICON - Successional change and biodiversity conservation - general approach}, series = {Landschaft im Wandel - {\"O}kologie im Wandel, Kurzfassungen der Beitr{\"a}ge zur 32. Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie in Cottbus vom 16. - 20.9.2002}, booktitle = {Landschaft im Wandel - {\"O}kologie im Wandel, Kurzfassungen der Beitr{\"a}ge zur 32. Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie in Cottbus vom 16. - 20.9.2002}, publisher = {Verl. Die Werkstatt}, address = {G{\"o}ttingen}, isbn = {3-89533-379-4}, pages = {S. 348}, language = {en} } @inproceedings{BalkenholBroeringDenkingeretal., author = {Balkenhol, Birgit and Br{\"o}ring, Udo and Denkinger, Petra and D{\"u}ker, Christian and Durka, Walter and Gebhardt, Sascha and G{\"u}th, Mareike and Heyde, K. and H{\"u}ttl, Reinhard F. and Mrzljak, Jadranka and M{\"u}nzenberger, Babette and Peschel, Tim and Voigtl{\"a}nder, Karin and W{\"o}llecke, Jens and Xylander, Willi E. R. and Wiegleb, Gerhard}, title = {SUBICON - Successional change and biodiversity conservation - methods}, series = {Landschaft im Wandel - {\"O}kologie im Wandel, Kurzfassungen der Beitr{\"a}ge zur 32. Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie in Cottbus vom 16. - 20.9.2002}, booktitle = {Landschaft im Wandel - {\"O}kologie im Wandel, Kurzfassungen der Beitr{\"a}ge zur 32. Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie in Cottbus vom 16. - 20.9.2002}, publisher = {Verl. Die Werkstat}, address = {G{\"o}ttingen}, isbn = {3-89533-379-4}, pages = {S. 349}, language = {en} } @inproceedings{BalkenholBroeringDenkingeretal., author = {Balkenhol, Birgit and Br{\"o}ring, Udo and Denkinger, Petra and D{\"u}ker, Christian and Durka, Walter and Gebhardt, Sascha and G{\"u}th, Mareike and Heyde, K. and H{\"u}ttl, Reinhard F. and Mrzljak, Jadranka and M{\"u}nzenberger, Babette and Peschel, Tim and Voigtl{\"a}nder, Karin and W{\"o}llecke, Jens and Xylander, Willi E. R. and Wiegleb, Gerhard}, title = {SUBICON - Successional change and biodiversity conservation - results}, series = {Landschaft im Wandel - {\"O}kologie im Wandel, Kurzfassungen der Beitr{\"a}ge zur 32. Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie in Cottbus vom 16. - 20.9.2002}, booktitle = {Landschaft im Wandel - {\"O}kologie im Wandel, Kurzfassungen der Beitr{\"a}ge zur 32. Jahrestagung der Gesellschaft f{\"u}r {\"O}kologie in Cottbus vom 16. - 20.9.2002}, publisher = {Verl. Die Werkstat}, address = {G{\"o}ttingen}, isbn = {3-89533-379-4}, pages = {S. 350}, language = {en} }