TY - GEN A1 - Demars, Benoît O. L. A1 - Wiegleb, Gerhard A1 - Harper, David M. A1 - Bröring, Udo A1 - Brux, Holger A1 - Herr, Wolfgang T1 - Aquatic plant dynamics in lowland river networks: connectivity, management and climate change T2 - Water Y1 - 2014 UR - http://www.mdpi.com/2073-4441/6/4/868 U6 - https://doi.org/10.3390/w6040868 SN - 2073-4441 VL - 6 IS - 4 SP - 868 EP - 911 ER - TY - GEN A1 - Wiegleb, Gerhard A1 - Bröring, Udo A1 - Filetti, Mirko A1 - Brux, Holger A1 - Herr, Wolfgang T1 - Long-term dynamics of macrophyte dominance and growth form types in two northwest German lowland streams T2 - Freshwater Biology Y1 - 2014 SN - 0046-5070 VL - 59 IS - 5 SP - 1012 EP - 1023 ER - TY - GEN A1 - Wiegleb, Gerhard A1 - Bröring, Udo A1 - Choi, Gyewoon A1 - Dahms, Hans-Uwe A1 - Kanongdate, Kamalaporn A1 - Byeon, Chan-Woo A1 - Ler, Lian Guey T1 - Ecological restoration as precaution and not as restitutional compensation T2 - Biodiversity and Conservation Y1 - 2013 SN - 1572-9710 VL - 22 IS - 9 SP - 1931 EP - 1948 ER - TY - GEN A1 - Bröring, Udo A1 - Wiegleb, Gerhard T1 - Soil zoology II: Colonization, distribution and abundance of terrestrial Heteroptera in open landscapes of former brown coal mining areas T2 - Ecological Engineering Y1 - 2005 U6 - https://doi.org/10.1016/j.ecoleng.2004.12.015 SN - 1872-6992 SN - 0925-8574 VL - 24 IS - 1-2 SP - 135 EP - 147 ER - TY - GEN A1 - Bröring, Udo A1 - Mrzljak, Jadranka A1 - Niedringhaus, Rolf A1 - Wiegleb, Gerhard T1 - Soil zoology I: Arthropod communities in open landscapes of former brown coal mining areas T2 - Ecological Engineering Y1 - 2005 U6 - https://doi.org/10.1016/j.ecoleng.2004.12.012 SN - 1872-6992 SN - 0925-8574 VL - 24 IS - 1-2 SP - 121 EP - 133 ER - TY - GEN A1 - Wiegleb, Gerhard A1 - Bröring, Udo T1 - The position of epistemological emergentism in ecology T2 - Senckenbergiana Maritima Y1 - 1996 SN - 0080-889X SN - 1867-1616 VL - 27 IS - 3-6 SP - 179 EP - 193 ER - TY - GEN A1 - Bröring, Udo A1 - Schulz, Friederike A1 - Wiegleb, Gerhard T1 - Niederlausitzer Bergbaufolgelandschaft: Erarbeitung von Leitbildern und Handlungskonzepten für die verantwortliche Gestaltung und nachhaltige Entwicklung ihrer naturnahen Bereiche T2 - Zeitschrift für Ökologie und Naturschutz Y1 - 1995 SN - 0940-5178 VL - 4 IS - 3 SP - 176 EP - 178 ER - TY - GEN A1 - Wiegleb, Gerhard A1 - Herr, Wolfgang A1 - Zander, Bärbel A1 - Bröring, Udo A1 - Brux, Holger A1 - Weyer, Klaus van de T1 - Natural variation of macrophyte vegetation in lowland streams at the regional level T2 - Limnologica Y1 - 2015 UR - http://www.sciencedirect.com/science/article/pii/S007595111400084X U6 - https://doi.org/doi:10.1016/j.limno.2014.12.005 SN - 1873-5851 IS - vol. 51 SP - 53 EP - 62 ER - TY - GEN A1 - Tluste, Claudia A1 - Bröring, Udo A1 - Němec, Tomáš A1 - Birkhofer, Klaus T1 - Morphometric traits of shells determine utilization marks in the Roman Snail in eastern Germany T2 - Web Ecology N2 - 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 Y1 - 2020 U6 - https://doi.org/10.5194/we-20-87-2020 SN - 1399-1183 SN - 2193-3081 VL - 20 IS - 2 SP - 87 EP - 94 ER - TY - GEN A1 - Preußer, Daniel A1 - Bröring, Udo A1 - Fischer, Thomas A1 - Juretzek, Thomas T1 - 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 T2 - Journal of Forensic and Legal Medicine N2 - 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. KW - Antibiotics KW - Blowflies KW - Entomotoxicology KW - Post-mortem interval Y1 - 2021 U6 - https://doi.org/10.1016/j.jflm.2021.102207 SN - 1878-7487 SN - 1752-928X VL - 81 IS - 5 ER - TY - GEN A1 - Fotang, Chefor A1 - Bröring, Udo A1 - Roos, Christian A1 - Enoguanbhor, Evidence Chinedu A1 - E. Abwe, Ekwoge A1 - Dutton, Paul A1 - Schierack, Peter A1 - Angwafo, Tsi Evaristus A1 - Birkhofer, Klaus T1 - Human activity and forest fragmentation threaten populations of the Nigeria-Cameroon Chimpanzee (Pan troglodytes ellioti) in Western Cameroon T2 - International Journal of Primatology N2 - 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. KW - Bushmeat hunting KW - Core areas KW - Edge length KW - Forest fragmentation KW - Forest perforation KW - Nest counts KW - Mature forest KW - Pan troglodytes ellioti KW - Secondary forest Y1 - 2021 U6 - https://doi.org/10.1007/s10764-020-00191-2 SN - 1573-8604 SN - 0164-0291 VL - 42 IS - 1 SP - 105 EP - 129 ER - TY - GEN A1 - Fotang, Chefor A1 - Dutton, Paul A1 - Bröring, Udo A1 - Roos, Christian A1 - Willie, Jacob A1 - Angwafo, Tsi Evaristus A1 - Chuo, Mvo Denis A1 - Kamgang, Serge Alexis A1 - Enoguanbhor, Evidence Chinedu A1 - Schierack, Peter A1 - Birkhofer, Klaus T1 - Tool use by Nigeria-Cameroon chimpanzees for driver ant predation in Kom-Wum Forest Reserve, North-West Region Cameroon T2 - Folia Primatologica N2 - 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. KW - ant dip KW - driver ants KW - insectivory KW - tool use Y1 - 2023 U6 - https://doi.org/10.1163/14219980-bja10006 SN - 1421-9980 SN - 0015-5713 VL - 94 IS - 1 SP - 73 EP - 85 ER - TY - GEN A1 - Fotang, Chefor A1 - Bröring, Udo A1 - Roos, Christian A1 - Dutton, Paul A1 - Tédonzong, Luc R. D. A1 - Willie, Jacob A1 - Angwafo, Tsi Evaristus A1 - Yuh, Yisa Ginath A1 - Schierack, Peter A1 - Birkhofer, Klaus T1 - Mapping suitable habitat for Nigeria–Cameroon chimpanzees in Kom-Wum Forest Reserve, North-Western Cameroon T2 - Primates N2 - 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. KW - Environmental factors KW - Habitat requirements KW - Human impact KW - Protected area KW - Maximum entropy KW - Pan troglodytes ellioti Y1 - 2023 U6 - https://doi.org/10.1007/s10329-023-01054-z SN - 1610-7365 IS - 25 ER -