Browsing Naturwissenschaften, Mathematik und Informatik by Referee "Balkenhol, Niko Prof. Dr."
Now showing items 1-20 of 21
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Effects of environmental change on grassland birds in the Central-Asian flyway through the annual cycle
(2025-05-20)Land use change is a significant driver of biodiversity loss, but its impacts have been largely studied with a particular focus on temperate regions and forest ecosystems. In this thesis, I used bird abundance, occurrence, ... -
On the ground and above: Forest Composition Effects on Terrestrial and Arboreal Small Mammals and their Consequences for Seed Dynamics
(2025-04-10)1- Forest admixtures and non-native tree species have been increasingly employed in forestry practices as they have the potential to mitigate climate change impacts, enhance biodiversity and yield a greater economic ... -
Untersuchung von Parasiten in Wildgehegen: Einsatz innovativer Technologien und biologischer Antagonisten
(2025-03-27)Objectives Wild animals kept in enclosures are exposed to an increased risk of parasite infections due to their limited range of movement and the sometimes high animal density and associated heavy soiling of the enclosures. ... -
Ecological modeling in two areas: species distribution modeling using commonness optimization and risk assessment for honeybees
(2024-07-09)Ecological systems are complex. Ecological models are simplified versions of ecological systems. Scientists use ecological models to better understand and manage ecological systems. I applied ecological models in two ... -
Effects of managed forest stand composition on small mammal demography and reciprocal effects on seed predation patterns in Northern Germany
(2024-04-08)In an effort to ameliorate the impacts of climate change, forest managers in Central Europe increasingly turn to conifer species that produce higher yields and are better adapted to projected future climatic conditions. ... -
Improving rhinoceros conservation and management through behaviour-based research: Evidence from Botswana
(2023-07-07)Illegal wildlife trafficking is one of the major drivers of biodiversity loss. Some of the most targeted species of illegal wildlife trade are rhinoceroses (“rhinos”), which exist nowadays in distinct populations in several ... -
Distribution, ecology and conservation priorities of the critically endangered Balkan lynx (Lynx lynx balcanicus Bureš, 1941)
(2022-10-11)Large-bodied mammals require large space for their daily activities, sometimes causing conflicts with humans. Although Europe’s policy ushered the comeback of herbivores and large carnivores, the overcrowded continent ... -
Impacts of landscape fragmentation on red deer (Cervus elaphus) and European wildcat (Felis silvestris silvestris): a nation-wide landscape genetic analysis
(2022-04-14)All around the globe, species biodiversity is threatened by landscape fragmentation and habitat loss. The consequences of these two processes are manifold and they can result in loss of ecosystem functions and extinction ... -
Combining landscape genetics and movement ecology to assess functional connectivity for red deer (Cervus elaphus) in Schleswig-Holstein, Germany
(2021-06-15)Human-caused restrictions like the fragmentation of the landscape poses a major challenge to wildlife conservation. Large and mobile species such as red deer (Cervus elaphus) are subject to increasing effects of isolation ... -
Norway spruce in German low mountain ranges – morphological distinctiveness and genetic adaptation of high elevation provenances
(2021-05-20)The natural range of Norway spruce (Picea abies [L.] KARST.) populations in Germany are the low mountain ranges. But in the last decades and centuries anthropogenic stand establishment highly increased the area covered ... -
Habitat use and population viability of the Red Kite (Milvus milvus) in Germany
(2021-05-04)The Red Kite (Milvus milvus) is a European near-endemic raptor species and due to its limited distribution and small global population size in the focus of national and international conservation efforts. Even within Europe, ... -
Advancing our understanding of animal dispersal and functional connectivity in human-altered landscapes: conceptual considerations and their empirical and simulation-based demonstration
(2020-08-21)Dispersal, the movement from a natal site to a new breeding site, is a key process in ecology and evolution. By determining the dynamics and distribution of populations and gene flow among them, dispersal is essential for ... -
Identification of the specific volatile organic compounds emitted by Anoplophora glabripennis (Moschulsky)
(2020-04-21)The globalisation and the increasing international trade have raised the number and risk of introduction of foreign species and invasive pests for years. Although native species have adapted to the native habitat over many ... -
Infochemikalien von Stamm und Wurzel der Rot-Buche (Fagus sylvatica L.): Methodenentwicklung und Betrachtung des VOC-Musters
(2020-02-26)Plant emission of volatile organic compounds (VOC) can be affected by changing environmental conditions such as temperature and drought. VOC play an important role in the interaction between plants and insects. For instance, ... -
Combining remote sensing data at different spatial, temporal and spectral resolutions to characterise semi-natural grassland habitats for large herbivores in a heterogeneous landscape
(2019-11-22)Semi-natural grasslands are ecosystems with high biodiversity. In Europe, such open and half-open areas are a fundamental characteristic of the cultural landscape, originating from and depending on management activities. ... -
Evaluation of the Efficacy of Wildlife Warning Reflectors to Mitigate Wildlife-Vehicle Collisions on Roads
(2018-12-04)Summary Wildlife-vehicle collisions cause human fatalities as well as economic and ecological losses on roads worldwide. Multiple mitigation measures have been developed over the past decades, while wildlife warning ... -
Untersuchung der Lebensraumansprüche des Grauspechts Picus canus und seiner Verbreitungsgrenze in Niedersachsen
(2018-06-11)The grey-headed woodpecker (Picus canus) is a semi-frequent species distributed worldwide from West France over Central Europe and East Russia up to Japan and Sumatra. The populated habitats vary and comprise boundary-abundant ... -
Effects of anthropogenic pressure on large mammal species in the Hyrcanian forest, Iran
(2018-01-24)Anthropogenic activities, such as overexploitation (poaching, logging) and farming (livestock grazing), are the most serious threats to biodiversity and ecosystem services. The effects of these drivers may be synergistic ... -
Evaluating, Implementing, and Applying Methods for Analysing Animal Biotelemetry Data
(2016-04-19)Movement ecology is an emerging discipline within ecology. Researchers addressing ba- sic and applied questions within the movement ecology framework often rely on animal biotelemetry data. Biotelemetry sensors can collect ... -
Analyse von Schälschadensinventuren in Harz und Solling
(2015-06-18)The present work represents the continuation of a project that examined the causal relationships between environmental factors and the occurrence of bark stripping on spruce by red deer in the Harz and Solling mountains ...