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  • 1
    Article
    Article
    Coding for life: Designing a platform for projecting and protecting global biodiversity / (2022)
    University of California Press,
    Details
    UID:
    kobvindex_IGB000025247
    ISSN: 1525-3244
    Note: A correction has been published: BioScience, Volume 72, Issue 1, January 2022, Page 106, https://doi.org/10.1093/biosci/biab127
    In: BioScience. - 72(2022)1, 91–104
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  • 2
    Online Resource
    Online Resource
    Developing an integrated platform for predicting niche and range dynamics : inverse calibration of spatially-explicit eco-evolutionary models (2022)
    Potsdam
    Details
    UID:
    gbv_1858978351
    Format: 1 Online-Ressource (xIv, 169 Seiten, 5460 KB) , Illustrationen, Diagramme
    Content: Species are adapted to the environment they live in. Today, most environments are subjected to rapid global changes induced by human activity, most prominently land cover and climate changes. Such transformations can cause adjustments or disruptions in various eco-evolutionary processes. The repercussions of this can appear at the population level as shifted ranges and altered abundance patterns. This is where global change effects on species are usually detected first. To understand how eco-evolutionary processes act and interact to generate patterns of range and abundance and how these processes themselves are influenced by environmental conditions, spatially-explicit models provide effective tools. They estimate a species’ niche as the set of environmental conditions in which it can persist. However, the currently most commonly used models rely on static correlative associations that are established between a set of spatial predictors and observed species distributions. For this, they assume stationary conditions and are ...
    Note: kumulative Dissertation , Dissertation Universität Potsdam 2023
    Additional Edition: Erscheint auch als Druck-Ausgabe Malchow, Anne-Kathleen Developing an integrated platform for predicting niche and range dynamics Potsdam, 2022
    Language: English
    Keywords: Hochschulschrift
    DOI: 10.25932/publishup-60273
    URN: urn:nbn:de:kobv:517-opus4-602737
    URL: kostenfrei
    URL: kostenfrei
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    UB Potsdam
  • 3
    Book
    Book
    Developing an integrated platform for predicting niche and range dynamics : inverse calibration of spatially-explicit eco-evolutionary models (2022)
    Potsdam
    Details
    UID:
    gbv_1860067298
    Format: xiv, 169 Seiten , Illustrationen, Diagramme
    Content: Species are adapted to the environment they live in. Today, most environments are subjected to rapid global changes induced by human activity, most prominently land cover and climate changes. Such transformations can cause adjustments or disruptions in various eco-evolutionary processes. The repercussions of this can appear at the population level as shifted ranges and altered abundance patterns. This is where global change effects on species are usually detected first. To understand how eco-evolutionary processes act and interact to generate patterns of range and abundance and how these processes themselves are influenced by environmental conditions, spatially-explicit models provide effective tools. They estimate a species’ niche as the set of environmental conditions in which it can persist. However, the currently most commonly used models rely on static correlative associations that are established between a set of spatial predictors and observed species distributions. For this, they assume stationary conditions and are ...
    Note: kumulative Dissertation , Dissertation Universität Potsdam 2023
    Additional Edition: Erscheint auch als Online-Ausgabe Malchow, Anne-Kathleen Developing an integrated platform for predicting niche and range dynamics Potsdam, 2022
    Language: English
    Keywords: Hochschulschrift
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  • 4
    Book
    Book
    Unravelling the mysteries of the Annamites : first insights in ecology, distribution, and genetic diversity of Annamite mammals (2022)
    Potsdam
    Details
    UID:
    gbv_1817006193
    Format: 116 Seiten , Illustrationen, Diagramme, Karten
    Content: The Annamites mountain range of Southeast Asia which runs along the border of Viet Nam and Laos is an important biodiversity hotspot with high levels of endemism. However, that biodiversity is threatened by unsustainable hunting, and many protected areas across the region have been emptied of their wildlife. To better protect the unique species in the Annamites, it is crucial to have a better understanding of their ecology and distribution. Additionally, basic genetic information is needed to provide conservation stakeholders with essential information to facilitate conservation breeding and counteract the illegal wildlife trade. To date, this baseline information is lacking for many Annamites species. This thesis aims to assess the effectiveness of using non-invasive collection methods, i.e. camera-trap surveys and leech-derived wildlife host DNA, in order to improve and enhance our understanding of ecology, distribution, and genetic diversity of the Annamites terrestrial mammals. In chapter 1, we analysed data from a systematic ...
    Note: Dissertation Universität Potsdam 2022
    Language: English
    Keywords: Hochschulschrift ; Dissertation ; Hochschulschrift
    Author information: Fickel, Jörns 1961-
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  • 5
    Online Resource
    Online Resource
    Increasing synergistic effects of habitat destruction and hunting on mammals over three decades in the Gran Chaco (2020)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_26413
    Format: 1 Online-Ressource (13 Seiten)
    ISSN: 1600-0587 , 1600-0587
    Content: Habitat destruction and overexploitation are the main threats to biodiversity and where they co-occur, their combined impact is often larger than their individual one. Yet, detailed knowledge of the spatial footprints of these threats is lacking, including where they overlap and how they change over time. These knowledge gaps are real barriers for effective conservation planning. Here, we develop a novel approach to reconstruct the individual and combined footprints of both threats over time. We combine satellite-based land-cover change maps, habitat suitability models and hunting pressure models to demonstrate our approach for the community of larger mammals (48 species 〉1 kg) across the 1.1 million km2 Gran Chaco region, a global deforestation hotspot cov-ering parts of Argentina, Bolivia and Paraguay. This provides three key insights. First, we find that the footprints of habitat destruction and hunting pressure expanded con-siderably between 1985 and 2015, across ~40% of the entire Chaco – twice the area affected by deforestation. Second, both threats increasingly acted together within the ranges of larger mammals in the Chaco (17% increase on average, ± 20% SD, cumula-tive increase of co-occurring threats across 465 000 km2), suggesting large synergistic effects. Conversely, core areas of high-quality habitats declined on average by 38%. Third, we identified remaining priority areas for conservation in the northern and central Chaco, many of which are outside the protected area network. We also identify hotspots of high threat impacts in central Paraguay and northern Argentina, providing a spatial template for threat-specific conservation action. Overall, our findings suggest increasing synergistic effects between habitat destruction and hunting pressure in the Chaco, a situation likely common in many tropical deforestation frontiers. Our work highlights how threats can be traced in space and time to understand their individual and combined impact, even in situations where data are sparse.
    Content: Peer Reviewed
    In: Oxford [u.a.] : Wiley-Blackwell, 43,7, Seiten 954-966, 1600-0587
    Language: English
    DOI: 10.18452/25746
    DOI: 10.1111/ecog.05053
    URN: urn:nbn:de:kobv:11-110-18452/26413-9
    URL: Volltext  (kostenfrei)
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    Fulltext
    HU Berlin
  • 6
    Online Resource
    Online Resource
    Home Range Size and Resource Use of Breeding and Non-breeding White Storks Along a Land Use Gradient (2018)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_20880
    Format: 1 Online-Ressource (11 Seiten)
    ISSN: 2296-701X , 2296-701X
    Content: Biotelemetry is increasingly used to study animal movement at high spatial and temporal resolution and guide conservation and resource management. Yet, limited sample sizes and variation in space and habitat use across regions and life stages may compromise robustness of behavioral analyses and subsequent conservation plans. Here, we assessed variation in (i) home range sizes, (ii) home range selection, and (iii) fine-scale resource selection of white storks across breeding status and regions and test model transferability. Three study areas were chosen within the Central German breeding grounds ranging from agricultural to fluvial and marshland. We monitored GPS-locations of 62 adult white storks equipped with solar-charged GPS/3D-acceleration (ACC) transmitters in 2013–2014. Home range sizes were estimated using minimum convex polygons. Generalized linear mixed models were used to assess home range selection and fine-scale resource selection by relating the home ranges and foraging sites to Corine habitat variables and normalized difference vegetation index in a presence/pseudo-absence design. We found strong variation in home range sizes across breeding stages with significantly larger home ranges in non-breeding compared to breeding white storks, but no variation between regions. Home range selection models had high explanatory power and well predicted overall density of Central German white stork breeding pairs. Also, they showed good transferability across regions and breeding status although variable importance varied considerably. Fine-scale resource selection models showed low explanatory power. Resource preferences differed both across breeding status and across regions, and model transferability was poor. Our results indicate that habitat selection of wild animals may vary considerably within and between populations, and is highly scale dependent. Thereby, home range scale analyses show higher robustness whereas fine-scale resource selection is not easily predictable and not transferable across life stages and regions. Such variation may compromise management decisions when based on data of limited sample size or limited regional coverage. We thus recommend home range scale analyses and sampling designs that cover diverse regional landscapes and ensure robust estimates of habitat suitability to conserve wild animal populations.
    Content: Peer Reviewed
    Note: This article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin.
    In: Lausanne : Frontiers Media, 6, 2296-701X
    Language: English
    DOI: 10.18452/20129
    DOI: 10.3389/fevo.2018.00079
    URN: urn:nbn:de:kobv:11-110-18452/20880-1
    URL: Volltext  (kostenfrei)
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    HU Berlin
  • 7
    Online Resource
    Online Resource
    Standardised empirical dispersal kernels emphasise the pervasiveness of long‐distance dispersal in European birds (2022)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_27785
    Format: 1 Online-Ressource (13 Seiten)
    Content: 1. Dispersal is a key life-history trait for most species and is essential to ensure connectivity and gene flow between populations and facilitate population viability in variable environments. Despite the increasing importance of range shifts due to global change, dispersal has proved difficult to quantify, limiting empirical understanding of this phenotypic trait and wider synthesis. 2. Here, we introduce a statistical framework to estimate standardised dispersal kernels from biased data. Based on this, we compare empirical dispersal kernels for European breeding birds considering age (average dispersal; natal, before first breeding; and breeding dispersal, between subsequent breeding attempts) and sex (females and males) and test whether different dispersal properties are phylogenetically conserved. 3. We standardised and analysed data from an extensive volunteer-based bird ring-recoveries database in Europe (EURING) by accounting for biases related to different censoring thresholds in reporting between countries and to migratory movements. Then, we fitted four widely used probability density functions in a Bayesian framework to compare and provide the best statistical descriptions of the different age and sex-specific dispersal kernels for each bird species. 4. The dispersal movements of the 234 European bird species analysed were statistically best explained by heavy-tailed kernels, meaning that while most individuals disperse over short distances, long-distance dispersal is a prevalent phenomenon in almost all bird species. The phylogenetic signal in both median and long dispersal distances estimated from the best-fitted kernel was low (Pagel's λ 〈 0.25), while it reached high values (Pagel's λ 〉0.7) when comparing dispersal distance estimates for fat-tailed dispersal kernels. As expected in birds, natal dispersal was on average 5 km greater than breeding dispersal, but sex-biased dispersal was not detected. 5. Our robust analytical framework allows sound use of widely available mark-recapture data in standardised dispersal estimates. We found strong evidence that long-distance dispersal is common among European breeding bird species and across life stages. The dispersal estimates offer a first guide to selecting appropriate dispersal kernels in range expansion studies and provide new avenues to improve our understanding of the mechanisms and rules underlying dispersal events.
    Content: Peer Reviewed
    In: Oxford [u.a.] : Wiley-Blackwell, 92,1, Seiten 158-170
    Language: English
    DOI: 10.1111/1365-2656.13838
    DOI: 10.18452/27117
    URN: urn:nbn:de:kobv:11-110-18452/27785-4
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    HU Berlin
  • 8
    Online Resource
    Online Resource
    A standard protocol for reporting species distribution models (2020)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_22899
    Format: 1 Online-Ressource (17 Seiten)
    Content: Species distribution models (SDMs) constitute the most common class of models across ecology, evolution and conservation. The advent of ready‐to‐use software packages and increasing availability of digital geoinformation have considerably assisted the application of SDMs in the past decade, greatly enabling their broader use for informing conservation and management, and for quantifying impacts from global change. However, models must be fit for purpose, with all important aspects of their development and applications properly considered. Despite the widespread use of SDMs, standardisation and documentation of modelling protocols remain limited, which makes it hard to assess whether development steps are appropriate for end use. To address these issues, we propose a standard protocol for reporting SDMs, with an emphasis on describing how a study's objective is achieved through a series of modeling decisions. We call this the ODMAP (Overview, Data, Model, Assessment and Prediction) protocol, as its components reflect the main steps involved in building SDMs and other empirically‐based biodiversity models. The ODMAP protocol serves two main purposes. First, it provides a checklist for authors, detailing key steps for model building and analyses, and thus represents a quick guide and generic workflow for modern SDMs. Second, it introduces a structured format for documenting and communicating the models, ensuring transparency and reproducibility, facilitating peer review and expert evaluation of model quality, as well as meta‐analyses. We detail all elements of ODMAP, and explain how it can be used for different model objectives and applications, and how it complements efforts to store associated metadata and define modelling standards. We illustrate its utility by revisiting nine previously published case studies, and provide an interactive web‐based application to facilitate its use. We plan to advance ODMAP by encouraging its further refinement and adoption by the scientific community.
    Content: Peer Reviewed
    Note: This article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin.
    In: Oxford [u.a.] : Wiley-Blackwell, 43,9, Seiten 1261-1277
    Language: English
    DOI: 10.18452/22268
    DOI: 10.1111/ecog.04960
    URN: urn:nbn:de:kobv:11-110-18452/22899-6
    URL: Volltext  (kostenfrei)
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    HU Berlin
  • 9
    Online Resource
    Online Resource
    Reducing persecution is more effective for restoring large carnivores than restoring their prey (2021)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_24297
    Format: 1 Online-Ressource (14 Seiten)
    Content: Large carnivores are currently disappearing from many world regions because of habitat loss, prey depletion, and persecution. Ensuring large carnivore persistence requires safeguarding and sometimes facilitating the expansion of their populations. Understanding which conservation strategies, such as reducing persecution or restoring prey, are most effective to help carnivores to reclaim their former ranges is therefore important. Here, we systematically explored such alternative strategies for the endangered Persian leopard (Panthera pardus saxicolor) in the Caucasus. We combined a rule-based habitat suitability map and a spatially explicit leopard population model to identify potential leopard subpopulations (i.e., breeding patches), and to test the effect of different levels of persecution reduction and prey restoration on leopard population viability across the entire Caucasus ecoregion and northern Iran (about 737,000 km2). We identified substantial areas of potentially suitable leopard habitat (~120,000 km2), most of which is currently unoccupied. Our model revealed that leopards could potentially recolonize these patches and increase to a population of 〉1,000 individuals in 100 yr, but only in scenarios of medium to high persecution reduction and prey restoration. Overall, reducing persecution had a more pronounced effect on leopard metapopulation viability than prey restoration: Without conservation strategies to reduce persecution, leopards went extinct from the Caucasus in all scenarios tested. Our study highlights the importance of persecution reduction in small populations, which should hence be prioritized when resources for conservation are limited. We show how individual-based, spatially explicit metapopulation models can help in quantifying the recolonization potential of large carnivores in unoccupied habitat, designing adequate conservation strategies to foster such recolonizations, and anticipating the long-term prospects of carnivore populations under alternative scenarios. Our study also outlines how data scarcity, which is typical for threatened range-expanding species, can be overcome with a rule-based habitat map. For Persian leopards, our projections clearly suggest that there is a large potential for a viable metapopulation in the Caucasus, but only if major conservation actions are taken towards reducing persecution and restoring prey.
    Content: Peer Reviewed
    In: New York : Wiley, 31,5
    Language: English
    DOI: 10.1002/eap.2338
    DOI: 10.18452/23631
    URN: urn:nbn:de:kobv:11-110-18452/24297-0
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    HU Berlin
  • 10
    Online Resource
    Online Resource
    Large carnivore range expansion in Iberia in relation to different scenarios of permeability of human‐dominated landscapes (2022)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_27791
    Format: 1 Online-Ressource (14 Seiten)
    Content: Aim Large carnivores are currently recolonizing parts of their historical ranges in Europe after centuries of persecution and habitat loss. Understanding the mechanisms driving these recolonizations is important for proactive conservation planning. Using the brown bear (Ursus arctos) and the Iberian lynx (Lynx pardinus) as examples, we explore where and when large carnivores are likely to expand into human-dominated landscapes and how varying levels of resistance due to human pressure might impact this recolonization process. Location Iberian Peninsula. Methods We used ensembles of species distribution models to relate species occurrence data to climate, topography and satellite-based land-cover predictors at a 10 km spatial resolution. Resulting predictions of suitable habitat areas were fed into a dispersal model to simulate range expansion over the 10 time-steps for different human pressure scenarios. Finally, we overlaid predictions with protected areas to highlight areas that are likely key for future connectivity, but where human pressures might hamper dispersal. Results We found widespread suitable habitat for both species (bear: 30,000 km2, lynx: 170,000 km2), yet human pressure limits potential range expansions. For brown bears, core habitats between the Cantabrian and Pyrenean populations remained unconnected despite suitable habitat in between. For lynx, we predicted higher range expansion potential, although high human pressures in southern coastal Spain negatively affected expansion potential. Main conclusions Our results highlight that the recolonization potential of brown bears and lynx in the Iberian Peninsula is likely more constrained by lower permeability of landscapes due to human pressure than by habitat availability, a situation likely emblematic for large carnivores in many parts of the world. More generally, our approach provides a simple tool for conservation planners and managers to identify where range expansion is likely to occur and where proactively managing to allow large carnivores to safely disperse through human-dominated landscapes can contribute to viable large carnivore populations.
    Content: Peer Reviewed
    In: 29,1, Seiten 75-88
    Language: English
    DOI: 10.1111/ddi.13645
    DOI: 10.18452/27124
    URN: urn:nbn:de:kobv:11-110-18452/27791-9
    URL: Volltext  (kostenfrei)
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    HU Berlin
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