@article{TeckentrupKramerSchadtJeltsch2019, author = {Teckentrup, Lisa and Kramer-Schadt, Stephanie and Jeltsch, Florian}, title = {The risk of ignoring fear: underestimating the effects of habitat loss and fragmentation on biodiversity}, series = {Landscape ecology}, volume = {34}, journal = {Landscape ecology}, number = {12}, publisher = {Springer}, address = {Dordrecht}, issn = {0921-2973}, doi = {10.1007/s10980-019-00922-8}, pages = {2851 -- 2868}, year = {2019}, language = {en} } @article{TeckentrupGrimmKramerSchadtetal.2018, author = {Teckentrup, Lisa and Grimm, Volker and Kramer-Schadt, Stephanie and Jeltsch, Florian}, title = {Community consequences of foraging under fear}, series = {Ecological modelling : international journal on ecological modelling and engineering and systems ecolog}, volume = {383}, journal = {Ecological modelling : international journal on ecological modelling and engineering and systems ecolog}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0304-3800}, doi = {10.1016/j.ecolmodel.2018.05.015}, pages = {80 -- 90}, year = {2018}, abstract = {Non-consumptive effects of predators within ecosystems can alter the behavior of individual prey species, and have cascading effects on other trophic levels. In this context, an understanding of non-consumptive predator effects on the whole prey community is crucial for predicting community structure and composition, hence biodiversity patterns. We used an individual-based, spatially-explicit modelling approach to investigate the consequences of landscapes of fear on prey community metrics. The model spans multiple hierarchical levels from individual home range formation based on food availability and perceived predation risk to consequences on prey community structure and composition. This mechanistic approach allowed us to explore how important factors such as refuge availability and foraging strategy under fear affect prey community metrics. Fear of predators affected prey space use, such as home range formation. These adaptations had broader consequences for the community leading to changes in community structure and composition. The strength of community responses to perceived predation risk was driven by refuge availability in the landscape and the foraging strategy of prey animals. Low refuge availability in the landscape strongly decreased diversity and total biomass of prey communities. Additionally, body mass distributions in prey communities facing high predation risk were shifted towards small prey animals. With increasing refuge availability the consequences of non-consumptive predator effects were reduced, diversity and total biomass of the prey community increased. Prey foraging strategies affected community composition. Under medium refuge availability, risk-averse prey communities consisted of many small animals while risk-taking prey communities showed a more even body mass distribution. Our findings reveal that non-consumptive predator effects can have important implications for prey community diversity and should therefore be considered in the context of conservation and nature management.}, language = {en} } @article{SimonsLewinsohnBluethgenetal.2017, author = {Simons, Nadja K. and Lewinsohn, Thomas and Bluethgen, Nico and Buscot, Francois and Boch, Steffen and Daniel, Rolf and Gossner, Martin M. and Jung, Kirsten and Kaiser, Kristin and M{\"u}ller, J{\"o}rg and Prati, Daniel and Renner, Swen C. and Socher, Stephanie A. and Sonnemann, Ilja and Weiner, Christiane N. and Werner, Michael and Wubet, Tesfaye and Wurst, Susanne and Weisser, Wolfgang W.}, title = {Contrasting effects of grassland management modes on species-abundance distributions of multiple groups}, series = {Agriculture, ecosystems \& environment : an international journal for scientific research on the relationship of agriculture and food production to the biosphere}, volume = {237}, journal = {Agriculture, ecosystems \& environment : an international journal for scientific research on the relationship of agriculture and food production to the biosphere}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0167-8809}, doi = {10.1016/j.agee.2016.12.022}, pages = {143 -- 153}, year = {2017}, abstract = {Intensive land use is a major cause of biodiversity loss, but most studies comparing the response of multiple taxa rely on simple diversity measures while analyses of other community attributes are only recently gaining attention. Species-abundance distributions (SADs) are a community attribute that can be used to study changes in the overall abundance structure of species groups, and whether these changes are driven by abundant or rare species. We evaluated the effect of grassland management intensity for three land-use modes (fertilization, mowing, grazing) and their combination on species richness and SADs for three belowground (arbuscular mycorrhizal fungi, prokaryotes and insect larvae) and seven aboveground groups (vascular plants, bryophytes and lichens; arthropod herbivores; arthropod pollinators; bats and birds). Three descriptors of SADs were evaluated: general shape (abundance decay rate), proportion of rare species (rarity) and proportional abundance of the commonest species (dominance). Across groups, taxonomic richness was largely unaffected by land-use intensity and only decreased with increasing mowing intensity. Of the three SAD descriptors, abundance decay rate became steeper with increasing combined land-use intensity across groups. This reflected a decrease in rarity among plants, herbivores and vertebrates. Effects of fertilization on the three descriptors were similar to the combined land-use intensity effects. Mowing intensity only affected the SAD descriptors of insect larvae and vertebrates, while grazing intensity produced a range of effects on different descriptors in distinct groups. Overall, belowground groups had more even abundance distribtitions than aboveground groups. Strong differences among aboveground groups and between above- and belowground groups indicate that no single taxonomic group can serve as an indicator for effects in other groups. In the past, the use of SADs has been hampered by concerns over theoretical models underlying specific forms of SADs. Our study shows that SAD descriptors that are not connected to a particular model are suitable to assess the effect of land use on community structure.}, language = {en} } @article{SeifertWeithoffVos2015, author = {Seifert, Linda I. and Weithoff, Guntram and Vos, Matthijs}, title = {Extreme heat changes post-heat wave community reassembly}, series = {Ecology and evolution}, volume = {5}, journal = {Ecology and evolution}, number = {11}, publisher = {Wiley-Blackwell}, address = {Hoboken}, issn = {2045-7758}, doi = {10.1002/ece3.1490}, pages = {2140 -- 2148}, year = {2015}, abstract = {Climate forecasts project further increases in extremely high-temperature events. These present threats to biodiversity, as they promote population declines and local species extinctions. This implies that ecological communities will need to rely more strongly on recovery processes, such as recolonization from a meta-community context. It is poorly understood how differences in extreme event intensity change the outcome of subsequent community reassembly and if such extremes modify the biotic environment in ways that would prevent the successful re-establishment of lost species. We studied replicated aquatic communities consisting of algae and herbivorous rotifers in a design that involved a control and two different heat wave intensity treatments (29 degrees C and 39 degrees C). Animal species that suffered heat-induced extinction were subsequently re-introduced at the same time and density, in each of the two treatments. The 39 degrees C treatment led to community closure in all replicates, meaning that a previously successful herbivore species could not re-establish itself in the postheat wave community. In contrast, such closure never occurred after a 29 degrees C event. Heat wave intensity determined the number of herbivore extinctions and strongly affected algal relative abundances. Re-introduced herbivore species were thus confronted with significantly different food environments. This ecological legacy generated by heat wave intensity led to differences in the failure or success of herbivore species re-introductions. Reassembly was significantly more variable, and hence less predictable, after an extreme heat wave, and was more canalized after a moderate one. Our results pertain to relatively simple communities, but they suggest that ecological legacies introduced by extremely high-temperature events may change subsequent ecological recovery and even prevent the successful re-establishment of lost species. Knowing the processes promoting and preventing ecological recovery is crucial to the success of species re-introduction programs and to our ability to restore ecosystems damaged by environmental extremes.}, language = {en} } @article{SchwarzerJoshi2017, author = {Schwarzer, Christian and Joshi, Jasmin Radha}, title = {Parallel adaptive responses to abiotic but not biotic conditions after cryptic speciation in European peat moss Sphagnum magellanicum Brid}, series = {Perspectives in plant ecology, evolution and systematics}, volume = {26}, journal = {Perspectives in plant ecology, evolution and systematics}, publisher = {Elsevier}, address = {Jena}, issn = {1433-8319}, doi = {10.1016/j.ppees.2017.03.001}, pages = {14 -- 27}, year = {2017}, abstract = {Sphagnum magellanicum Brid. is a worldwide distributed peat moss and an ecosystem-engineer in temperate and boreal bog ecosystems suggesting a great adaptive potential to different environmental conditions. Phenotypes of S. magellanicum have been described as one species so far, although this has been questioned by the detection of several genetic groups in a recent global study. Concordant with morphological uniformity, our analyses of Mid-to Northern European plants revealed only minimal variation in nuclear nrITS and plastid rps4 sequences. However, we detected two distinct genetic groups within Europe by analyzing microsatellite data of 298 individuals from 27 populations. Plants formed an Eastern and a Western European cluster, with overlapping areas in northern Germany and southern Sweden where plants of both clusters coexist within populations but show no signs of admixture. These two cryptic taxa seem therefore to be reproductively isolated. Bayesian analyses indicated that reproductive isolation occurred before the end of the late Pleistocene glaciations. After the meltdown of the glaciers, both clusters colonized northern and central Europe from glacial refugia in the West and possibly from Euro-Siberian populations. To test for divergent adaptation to environmental conditions, we exposed plants of both clusters to experimental climate warming treatments at two different plant-diversity levels (monocultures vs. mixtures) for two years. Despite their different evolutionary history, plants of both genetic clusters responded equally to climate treatments in our southern common garden near Potsdam, Germany. However, only eastern cluster populations benefited from plant-community diversity and increased their biomass in mixtures. These differences in their ecological niche match the diverging microhabitat preferences observed in situ and may effectively hamper genetic exchange if distances between microhabitats are too large for Sphagnum sperm movement. (C) 2017 Elsevier GmbH. All rights reserved.}, language = {en} } @article{ReinhardGeisslerBlaum2022, author = {Reinhard, Johanna E. and Geißler, Katja and Blaum, Niels}, title = {Grass and ground dwelling beetle community responses to holistic and wildlife grazing management using a cross-fence comparison in Western Kalahari rangeland, Namibia}, series = {Journal of insect conservation : an international journal devoted to the conservation of insects and related invertebrates}, volume = {26}, journal = {Journal of insect conservation : an international journal devoted to the conservation of insects and related invertebrates}, publisher = {Springer}, address = {Dordrecht}, issn = {1366-638X}, doi = {10.1007/s10841-022-00410-6}, pages = {711 -- 720}, year = {2022}, abstract = {Savannahs are often branded by livestock grazing with resulting land degradation. Holistic management of livestock was proposed to contribute to biodiversity conservation by simulating native wildlife grazing behaviour. This study attempts the comparison of the impact of a holistic management regime to a wildlife grazing management regime on grass and ground-dwelling beetle species diversity on neighboring farms in Namibian rangeland. Results show that the response of biodiversity in species richness and composition to holistic management of livestock differs substantially from wildlife grazing with a positive impact. From a total of 39 identified species of ground-dwelling beetles (Coleoptera: Tenebrionidae, Carabidae) from 29 genera, eight species were found to be indicators for holistic management of livestock and three were found to be indicators for wildlife grazed rangeland. Observations suggest that holistic management of livestock may contribute to biodiversity conservation, but the differential effect of grazing management on species assemblages suggests that livestock grazing cannot replace native wildlife herbivory. Implications for insect conservation An adaptive management strategy such as holistic management used in this study shows the potential to support high beetle biodiversity. Holistic management of livestock thus aspects in favour for a sustainable form of grazing management for insect conservation even though it does not functionally replace grazing by native wildlife.}, language = {en} } @article{RasigrafWagner2022, author = {Rasigraf, Olivia and Wagner, Dirk}, title = {Landslides}, series = {Earth science reviews : the international geological journal bridging the gap between research articles and textbooks}, volume = {231}, journal = {Earth science reviews : the international geological journal bridging the gap between research articles and textbooks}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0012-8252}, doi = {10.1016/j.earscirev.2022.104064}, pages = {16}, year = {2022}, abstract = {Erosion by landslides is a common phenomenon in mountain regions around the globe, affecting all climatic zones. Landslides facilitate bedrock weathering, pedogenesis and ecological succession, being key drivers of biodiversity. Landslide chronosequences have long been used for studies of vegetation succession in initial ecosystems, but they further offer ideal model systems for studies of soil development and microbial community succession. In this review we synthesize the state of knowledge on the role of landslides in ecosystems, their influence on element cycles and interactions with biota. Further, we discuss feedback mechanisms between global warming, landslide activity and greenhouse gas emissions. In the view of increasing anthropogenic influence and climate change, soils are becoming a critical resource. Due to their ubiquity, landslide chronosequences have the potential to provide critical insights into soil development under different climates and thereby contribute to future soil restoration efforts.}, language = {en} } @article{KhurooReshiMaliketal.2012, author = {Khuroo, Anzar A. and Reshi, Zafar A. and Malik, Akhtar H. and Weber, Ewald and Rashid, Irfan and Dar, G. H.}, title = {Alien flora of India taxonomic composition, invasion status and biogeographic affiliations}, series = {Biological invasions : unique international journal uniting scientists in the broad field of biological invasions}, volume = {14}, journal = {Biological invasions : unique international journal uniting scientists in the broad field of biological invasions}, number = {1}, publisher = {Springer}, address = {Dordrecht}, issn = {1387-3547}, doi = {10.1007/s10530-011-9981-2}, pages = {99 -- 113}, year = {2012}, abstract = {The wide knowledge gaps in invasion biology research that exist in the developing world are crucial impediments to the scientific management and global policymaking on biological invasions. In an effort to fill such knowledge gaps, we present here an inventory of the alien flora of India, based on systematic reviews and rigorous analyses of research studies (ca. 190) published over the last 120 years (1890-2010 AD), and updated with field records of the last two decades. Currently, the inventory comprises of 1,599 species, belonging to 842 genera in 161 families, and constitutes 8.5\% of the total Indian vascular flora. The three most species-rich families are Asteraceae (134 spp.), Papilionaceae (114 spp.) and Poaceae (106 spp.), and the three largest genera are Eucalyptus (25 spp.), Ipomoea (22 spp.), and Senna (21 spp.). The majority of these species (812) have no report of escaping from cultivation. Of the remaining subset of 787 species, which have either escaped from intentional cultivation, or spread after unintentional introduction, casuals are represented by 57 spp., casual/naturalised by 114 spp., naturalised by 257 spp., naturalised/invasive by 134 spp., and invasive by 225 spp. Biogeographically, more than one-third (35\%) of the alien flora in India has its native ranges in South America, followed by Asia (21\%), Africa (20\%), Europe (11\%), Australia (8\%), North America (4\%); and cryptogenic (1\%). The inventory is expected to serve as the scientific baseline on plant invasions in India, with implications for conservation of global biodiversity.}, language = {en} } @article{JiaAnslanChenetal.2022, author = {Jia, Weihan and Anslan, Sten and Chen, Fahu and Cao, Xianyong and Dong, Hailiang and Dulias, Katharina and Gu, Zhengquan and Heinecke, Liv and Jiang, Hongchen and Kruse, Stefan and Kang, Wengang and Li, Kai and Liu, Sisi and Liu, Xingqi and Liu, Ying and Ni, Jian and Schwalb, Antje and Stoof-Leichsenring, Kathleen R. and Shen, Wei and Tian, Fang and Wang, Jing and Wang, Yongbo and Wang, Yucheng and Xu, Hai and Yang, Xiaoyan and Zhang, Dongju and Herzschuh, Ulrike}, title = {Sedimentary ancient DNA reveals past ecosystem and biodiversity changes on the Tibetan Plateau: overview and prospects}, series = {Quaternary science reviews : the international multidisciplinary research and review journal}, volume = {293}, journal = {Quaternary science reviews : the international multidisciplinary research and review journal}, publisher = {Elsevier}, address = {Oxford}, issn = {0277-3791}, doi = {10.1016/j.quascirev.2022.107703}, pages = {14}, year = {2022}, abstract = {Alpine ecosystems on the Tibetan Plateau are being threatened by ongoing climate warming and intensified human activities. Ecological time-series obtained from sedimentary ancient DNA (sedaDNA) are essential for understanding past ecosystem and biodiversity dynamics on the Tibetan Plateau and their responses to climate change at a high taxonomic resolution. Hitherto only few but promising studies have been published on this topic. The potential and limitations of using sedaDNA on the Tibetan Plateau are not fully understood. Here, we (i) provide updated knowledge of and a brief introduction to the suitable archives, region-specific taphonomy, state-of-the-art methodologies, and research questions of sedaDNA on the Tibetan Plateau; (ii) review published and ongoing sedaDNA studies from the Tibetan Plateau; and (iii) give some recommendations for future sedaDNA study designs. Based on the current knowledge of taphonomy, we infer that deep glacial lakes with freshwater and high clay sediment input, such as those from the southern and southeastern Tibetan Plateau, may have a high potential for sedaDNA studies. Metabarcoding (for microorganisms and plants), metagenomics (for ecosystems), and hybridization capture (for prehistoric humans) are three primary sedaDNA approaches which have been successfully applied on the Tibetan Plateau, but their power is still limited by several technical issues, such as PCR bias and incompleteness of taxonomic reference databases. Setting up high-quality and open-access regional taxonomic reference databases for the Tibetan Plateau should be given priority in the future. To conclude, the archival, taphonomic, and methodological conditions of the Tibetan Plateau are favorable for performing sedaDNA studies. More research should be encouraged to address questions about long-term ecological dynamics at ecosystem scale and to bring the paleoecology of the Tibetan Plateau into a new era.}, language = {en} } @misc{HellwigWalzMarkovic2019, author = {Hellwig, Niels and Walz, Ariane and Markovic, Danijela}, title = {Climatic and socioeconomic effects on land cover changes across Europe}, series = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe}, number = {764}, doi = {10.25932/publishup-43788}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-437885}, pages = {22}, year = {2019}, abstract = {Land cover change is a dynamic phenomenon driven by synergetic biophysical and socioeconomic effects. It involves massive transitions from natural to less natural habitats and thereby threatens ecosystems and the services they provide. To retain intact ecosystems and reduce land cover change to a minimum of natural transition processes, a dense network of protected areas has been established across Europe. However, even protected areas and in particular the zones around protected areas have been shown to undergo land cover changes. The aim of our study was to compare land cover changes in protected areas, non-protected areas, and 1 km buffer zones around protected areas and analyse their relationship to climatic and socioeconomic factors across Europe between 2000 and 2012 based on earth observation data. We investigated land cover flows describing major change processes: urbanisation, afforestation, deforestation, intensification of agriculture, extensification of agriculture, and formation of water bodies. Based on boosted regression trees, we modelled correlations between land cover flows and climatic and socioeconomic factors. The results show that land cover changes were most frequent in 1 km buffer zones around protected areas (3.0\% of all buffer areas affected). Overall, land cover changes within protected areas were less frequent than outside, although they still amounted to 18,800 km2 (1.5\% of all protected areas) from 2000 to 2012. In some parts of Europe, urbanisation and intensification of agriculture still accounted for up to 25\% of land cover changes within protected areas. Modelling revealed meaningful relationships between land cover changes and a combination of influencing factors. Demographic factors (accessibility to cities and population density) were most important for coarse-scale patterns of land cover changes, whereas fine-scale patterns were most related to longitude (representing the general east/west economic gradient) and latitude (representing the north/south climatic gradient).}, language = {en} } @article{HellwigWalzMarkovic2019, author = {Hellwig, Niels and Walz, Ariane and Markovic, Danijela}, title = {Climatic and socioeconomic effects on land cover changes across Europe}, series = {PloS One}, volume = {14}, journal = {PloS One}, number = {7}, publisher = {PLOS 1}, address = {San Francisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0219374}, pages = {20}, year = {2019}, abstract = {Land cover change is a dynamic phenomenon driven by synergetic biophysical and socioeconomic effects. It involves massive transitions from natural to less natural habitats and thereby threatens ecosystems and the services they provide. To retain intact ecosystems and reduce land cover change to a minimum of natural transition processes, a dense network of protected areas has been established across Europe. However, even protected areas and in particular the zones around protected areas have been shown to undergo land cover changes. The aim of our study was to compare land cover changes in protected areas, non-protected areas, and 1 km buffer zones around protected areas and analyse their relationship to climatic and socioeconomic factors across Europe between 2000 and 2012 based on earth observation data. We investigated land cover flows describing major change processes: urbanisation, afforestation, deforestation, intensification of agriculture, extensification of agriculture, and formation of water bodies. Based on boosted regression trees, we modelled correlations between land cover flows and climatic and socioeconomic factors. The results show that land cover changes were most frequent in 1 km buffer zones around protected areas (3.0\% of all buffer areas affected). Overall, land cover changes within protected areas were less frequent than outside, although they still amounted to 18,800 km2 (1.5\% of all protected areas) from 2000 to 2012. In some parts of Europe, urbanisation and intensification of agriculture still accounted for up to 25\% of land cover changes within protected areas. Modelling revealed meaningful relationships between land cover changes and a combination of influencing factors. Demographic factors (accessibility to cities and population density) were most important for coarse-scale patterns of land cover changes, whereas fine-scale patterns were most related to longitude (representing the general east/west economic gradient) and latitude (representing the north/south climatic gradient).}, language = {en} } @article{HeinzeWernerWeberetal.2015, author = {Heinze, Johannes and Werner, Tony and Weber, Ewald and Rillig, Matthias C. and Joshi, Jasmin Radha}, title = {Soil biota effects on local abundances of three grass species along a land-use gradient}, series = {Oecologia}, volume = {179}, journal = {Oecologia}, number = {1}, publisher = {Springer}, address = {New York}, issn = {0029-8549}, doi = {10.1007/s00442-015-3336-0}, pages = {249 -- 259}, year = {2015}, abstract = {Biotic plant-soil interactions and land-use intensity are known to affect plant individual fitness as well as competitiveness and therefore plant-species abundances in communities. Therefore, a link between soil biota and land-use intensity on local abundance of plant species in grasslands can be expected. In two greenhouse experiments, we investigated the effects of soil biota from grassland sites differing in land-use intensity on three grass species that vary in local abundances along this land-use gradient. We were interested in those soil-biota effects that are associated with land-use intensity, and whether these effects act directly or indirectly. Therefore, we grew the three plant species in two separate experiments as single individuals and in mixtures and compared their performance. As single plants, all three grasses showed a similar performance with and without soil biota. In contrast, in mixtures growth of the species in response to the presence or absence of soil biota differed. This resulted in different soil-biota effects that tend to correspond with patterns of species-specific abundances in the field for two of the three species tested. Our results highlight the importance of indirect interactions between plants and soil microorganisms and suggest that combined effects of soil biota and plant-plant interactions are involved in structuring plant communities. In conclusion, our experiments suggest that soil biota may have the potential to alter effects of plant-plant interactions and therefore influence plant-species abundances and diversity in grasslands.}, language = {en} } @article{DrechslerWaetzoldGrimm2022, author = {Drechsler, Martin and W{\"a}tzold, Frank and Grimm, Volker}, title = {The hitchhiker's guide to generic ecological-economic modelling of land-use-based biodiversity conservation policies}, series = {Ecological modelling : international journal on ecological modelling and engineering and systems ecolog}, volume = {465}, journal = {Ecological modelling : international journal on ecological modelling and engineering and systems ecolog}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0304-3800}, doi = {10.1016/j.ecolmodel.2021.109861}, pages = {22}, year = {2022}, abstract = {Biodiversity loss is a result of interacting ecological and economic factors, and it must be addressed through an analysis of biodiversity conservation policies. Ecological-economic modelling is a helpful approach to this analysis, but it is also challenging since modellers often have a specific disciplinary background and tend to misrepresent either the ecological or economic aspects. Here, we introduce some of the most important concepts from both disciplines, and since the two modelling cultures also differ between the two disciplines, we present an integrated, consistent guide through all the steps of generic ecological-economic modelling, such as formulation of the research question, development of the conceptual model, model parametrisation and analysis, and interpretation of model results. Although we focus on generic models aimed at a general understanding of causes and remedies for biodiversity loss, the concepts and guidance provided here may also help in the modelling of more specific conservation problems. This guide is aimed at the intersection of three disciplines: ecology, economics and mathematical modelling, and addresses readers who have some knowledge in at least one of these disciplines and want to learn about the others to build and analyse generic ecological-economic models. Compared to textbooks, the guide focuses on the practice of modelling rather than lengthy explanations of theoretical concepts. We attempt to demonstrate that generic ecological-economic modelling does not require magical powers and instead is a manageable exercise.}, language = {en} } @phdthesis{Czempas2013, author = {Czempas, Alexander}, title = {Die B{\"u}ndelung von Payments for Environmental Services als M{\"o}glichkeit eines effizienten Schutzes von Biodiversit{\"a}t}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-238-4}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-64572}, school = {Universit{\"a}t Potsdam}, pages = {XV, 358}, year = {2013}, abstract = {In dieser Dissertation erfolgt eine Analyse des Schutzes von Biodiversit{\"a}t durch Payments for Environmental Services (PES) und, insbesondere im empirischen Teil, innerhalb des Ansatzes Reducing Emissions from Deforestation and Forest Degradation plus (REDDplus). Die Anwendung von PES-Programmen zum Schutz von Biodiversit{\"a}t gewinnt im umweltpolitischen Bereich immer mehr an Bedeutung. Gleichzeitig ist die Umsetzung solcher Schutzprogramme jedoch mit erheblichen Transaktionskosten und damit der Gefahr von Ineffizienzen verbunden. Die M{\"o}glichkeit der B{\"u}ndelung von Biodiversit{\"a}t mit einer weiteren {\"O}kosystemleistung, hier der Speicherung von Kohlenstoffdioxid, wird hinsichtlich der Wirkungen auf die Schutzniveaus beider {\"O}kosystemleistungen und der Ver{\"a}nderung der Produktionsweise des landwirtschaftlichen Sektors in einem monopsonistischen Modelansatz analysiert. Durch die formale Analyse zeigt sich, dass f{\"u}r einen effizienteren Schutz der beiden {\"O}kosystemleistungen economies of scope bei den Transaktionskosten mit der B{\"u}ndelung von PES-Programmen realisiert werden m{\"u}ssen. Ein Beispiel f{\"u}r die praktische Umsetzung von Payments for Environmental Services ist der REDDplus-Ansatz. Das Ziel ist die Reduzierung von Treibhausgasemissionen durch den Erhalt und die nachhaltige Bewirtschaftung von tropischen W{\"a}ldern, aber auch der Schutz von Biodiversit{\"a}t. Innerhalb des empirischen Teiles der Dissertation wird untersucht, inwiefern es durch die Verfolgung beider Ziele zur Realisierung von economies of scope bei den Transaktionskosten kommt. In die Analyse werden sechs L{\"a}nder (Costa-Rica, Indonesien, Mexiko, Kambodscha, Peru und Vietnam) einbezogen. Die Analyse erfolgt auf der Grundlage von Szenarien, welche mit Hilfe der Readiness Proposals der L{\"a}nder f{\"u}r den Zeitraum von 2008 bis 2030 erstellt wurden. Anhand der Ergebnisse kann gezeigt werden, dass es nicht automatisch durch die Zusammenlegung von PES-Programmen zu einer Realisierung von economies of scope kommt. Eine B{\"u}ndelung solcher Programme ist daher nicht in allen Phasen ihrer Umsetzung ratsam.}, language = {de} }