Sascha Buchholz

Sascha Buchholz
University of Münster | WWU · Institut für Landschaftsökologie

Prof. Dr.
Setting up my new Animal Ecology Research Group at the University of Münster

About

122
Publications
32,665
Reads
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1,608
Citations
Citations since 2017
74 Research Items
1274 Citations
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2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
Additional affiliations
April 2010 - August 2021
Technische Universität Berlin
Position
  • PostDoc Position
January 2007 - April 2010
University of Münster
Position
  • Lecturer
Description
  • Lectures and Tutorials: Animal Ecology, Community Ecology, Field Methods in Terrestrial Ecology, PaperClub, Winter Ecology, Zoology; field Trip: Geographical and ecological aspects of NE-Greece
July 2005 - March 2010
University of Münster
Education
October 2011 - July 2012
FernUniversität in Hagen
Field of study
  • Environmental Psychology and Environmental Education
February 2011 - July 2012
Technische Universität Berlin
Field of study
  • University Didactics and Higher Education
October 2009 - August 2010
Universität Koblenz-Landau
Field of study
  • Environmental Economics and Environmental Law

Publications

Publications (122)
Article
Full-text available
A functional ecological understanding of urban wild bee communities is of growing importance especially in regard to biodiversity conservation, ecosystem service maintenance and effective conservation programmes. In this paper, we review and summarize the published literature aiming to inform future research investigations in the growing field of w...
Article
The increase in artificial light at night (ALAN) is widely considered as a major driver for the worldwide decline of nocturnal pollinators such as moths. However, the relationship between light and trees as ‘islands of shade’ within urban areas has not yet been fully understood. Here, we studied (1) the effects of three landscape variables, i.e. so...
Article
Full-text available
Urbanisation is known to change biodiversity patterns and plant-animal interactions such as pollination-a key ecological process. Floral traits like colour, size or UV-patterns are essential attractors for many pollinators. It is largely unknown, though, how the distribution of such floral traits within plant communities changes along an urbanisati...
Article
Full-text available
Cities are considered important refuges for insect pollinators. This has been shown repeatedly for wild bees, but may also be true for other diverse taxa such as hoverflies. However, our understanding of how urban environmental filters shape pol-linator species communities and their traits is still limited. Here, we used wild bee and hoverfly speci...
Article
Full-text available
1. This study highlights the potential of urban dry grasslands for diverse pollinator communities of wild bees and hoverflies, including rare and endangered species. 2. By using pan trap sampling on 49 study sites distributed across the urban environment , responses of wild bee and hoverfly communities to urban features at two spatial scales (urban...
Article
Full-text available
The insect crisis, as conservation topic, has historically received little attention among the general public. Yet, the publication “More than 75% decline over 27 years in total flying insect biomass in protected areas” by Hallmann et al. gained vast media coverage in Germany in October 2017. Given the media's known influence on public perception,...
Article
Full-text available
Understanding phenological responses of plants to changing temperatures is important because of multiple associated ecological consequences. Cities with their urban heat island can be used as laboratories to study phenological adaptation to climate change. However, previous phenology studies focused on trees and did not disentangle the role of micr...
Article
Full-text available
Urban gardens can support diverse bee communities through resource provision in resource poor environments. Yet the effects of local habitat and landscape factors on wild bee communities in cities is still insufficiently understood, nor how this information could be applied to urban wildlife conservation. Here we investigate how taxonomic and funct...
Article
Full-text available
Wild boar is increasingly establishing populations in the outskirts of European cities, with the largest German urban population occurring in Berlin. Related soil disturbance in grasslands is common and often considered as damage to biodiversity. However, it is unknown how animal and plant species in urban grasslands respond to wild boar activity -...
Article
Full-text available
Plant communities in urban gardens consist of cultivated species, including ornamentals and food crops, and wild growing species. Yet it remains unclear what significance urban gardens have for the plant diversity in cities and how the diversity of cultivated and wild plants depends on the level of urbanization. We sampled plants growing within 18...
Article
Full-text available
Pollen allergies have been on the rise in cities, where anthropogenic disturbances, warmer climate and introduced species are shaping novel urban ecosystems. Yet, the allergenic potential of these urban ecosystems, in particular spontaneous vegetation outside parks and gardens, remains poorly known. We quantified the allergenic properties of 56 dry...
Article
Full-text available
The urban heat island (UHI) effect remains a major threat to society as cities densify and sprawl. Urban greening through local to landscape management is a proposed strategy to combat UHI and improve environmental justice in city neighborhoods. For example, urban community gardens are multifunctional green spaces that play an important role for bi...
Article
Vor dem Hintergrund des kontinuierlichen Rückgangs an potenziellen Quartieren von Fledermäusen in der Stadt, kommen Fledermauskästen als möglichen Ersatzquartieren eine immer größere Bedeutung zu. Inwiefern diese im urbanen Raum von Fledermäusen genutzt werden, ist jedoch nur wenig bekannt, da sich bisherige Studien überwiegend auf die Untersuchun...
Article
Natural rivers offer riparian habitats to many highly specialised, rare, and endangered insect species and are extremely important for ecosystem services. In the past, these ecosystems have been heavily degraded by anthropogenic use and run the risk of losing their favourable ecological conditions. For this reason, restoration measures are urgently...
Article
Full-text available
Urbanization is occurring around the globe, changing environmental conditions and influencing biodiversity and ecosystem functions. Urban domestic gardens represent a small-grained mosaic of diverse habitats for numerous species. The challenging conditions in urban gardens support species possessing certain traits, and exclude other species. Functi...
Preprint
Full-text available
Understanding phenological responses of plants to changing temperatures is important because of multiple associated ecological consequences. Cities with their urban heat island can be used as laboratories to study phenological adaptation to climate change. However, previous phenology studies focused on trees and did not disentangle the role of micr...
Article
Dog walking is a highly popular leisure activity in cities around the globe. It is also a controversial issue for urban conservation and green space management due to presumed ecological impacts of dogs. Yet regulations allowing or prohibiting the presence of dogs in areas of conservation concern are rarely based on demonstrated effects of dogs on...
Article
Full-text available
Cities are home to both a majority of the world’s human population, and to a diversity of wildlife. Urban wildlife conservation research and policy has importantly furthered ecological understanding and species protection in cities, while also leveraging wildlife conservation to connect people to urban nature. Thus, urban wildlife conservation inte...
Article
Full-text available
Road corridors are important conduits for plant invasions, and an understanding of the underlying mechanisms is necessary for efficient management of invasive alien species in road networks. Previous studies identified road type with different traffic volumes as a key driver of seed dispersal and abundance of alien plants along roads. However, how...
Article
Full-text available
Near-natural or semi-natural forests such as relatively undisturbed and old deciduous or mixed woodland are considered worth protecting and ecologically valuable habitats for bat conservation. In contrast, mono-specific forest plantations are considered ecologically less valuable; thus, decision-makers recommend these plantations as suitable locati...
Article
Full-text available
Aim We analysed the role of species interactions in wildlife community responses to urbanization. Specifically, we investigated non‐trophic associations within a bird community and the role of trophic interactions in the responses of bird species to the urbanization gradient. Location City‐state of Berlin, Central Europe. Methods Arthropod and bi...
Data
Effects of distance to the city centre (three classes) on the Sørensen-indices of species compositions of gastropods (a), spiders (b), millipedes (c), woodlice (d), ants (e), and rove beetles (f). The Sørensen-indices of species compositions were calculated for all combinations of each two gardens belonging to the same distance class. Different let...
Data
Effects of percentage of sealed area within a radius of 200 m (three classes) on the Sørensen-indices of species compositions of gastropods (a), spiders (b), millipedes (c), woodlice (d), ants (e), and rove beetles (f). The Sørensen-indices of species compositions were calculated for all combinations of each two gardens belonging to the same distan...
Data
Results of constrained analyses of principle coordinates visualizing similarities in species compositions of gastropods (a), spiders (b), millipedes (c), woodlice (d), ants (e), and rove beetles (f) in gardens with different percentages of sealed area within a radius of 200 m (three classes). Dark red refers to gardens with a high percentage of sea...
Data
Summaries of GLMs testing the effects of landscape factors (distance to city centre or percentage of sealed area in the surroundings), garden size (area with vegetation) and local garden characteristics, as well as of the interaction between the landscape factors and garden size on species richness and abundance of different taxonomical groups.
Article
Full-text available
Urbanisation is increasing worldwide and is regarded a major driver of environmental change altering local species assemblages. Private domestic gardens contribute a significant share of total green area in cities, but their biodiversity has received relatively little attention. Previous studies mainly considered plants, flying invertebrates such a...
Article
Full-text available
Near-natural rivers and riparian ecosystems can represent biodiversity hotspots harbouring many highly specialised, rare and endangered species. During the past centuries, these habitats have been heavily degraded by anthropogenic use, and therefore river restoration is one of the most striking fields of action that is legally defined by the Europe...
Article
Full-text available
A functional ecological understanding of urban wild bee communities is of growing importance especially in regard to biodiversity conservation, ecosystem service maintenance and effective conservation programmes. In this paper, we review and summarize the published literature aiming to inform future research investigations in the growing field of w...
Article
A single specimen of Anotylus politus was captured in Riehen (BS) in 2014. This is the first record of the species in Switzerland.
Article
The Galapagos archipelago is an ideal location for studying species differentiation on oceanic islands due to its isolation and geological youth. Spiders, as early colonisers, are good model organisms to understand these processes. The aim of this study is to update the list of spiders found in Galapagos and investigate the current distribution pat...
Article
Full-text available
Anthropogenic changes in climate, land use and disturbance regimes, as well as introductions of non‐native species can lead to the transformation of many ecosystems. The resulting novel ecosystems are usually characterized by species assemblages that have not occurred previously in a given area. Quantifying the ecological novelty of communities (i....
Article
Full-text available
Von Mai bis Juli und von September bis Oktober 2017 wurde auf 52 ausgewählten Sandtrockenrasen in Berlin und Brandenburg mittels Bodenfallen die Kurzflügelkäferfauna erfasst. Dabei konnten insgesamt 111 Arten nachgewiesen werden. Fünfzehn Arten werden in der Roten Liste Berlin (Kategorien 0–3) geführt. Falagrioma thoracica (Stephens, 1832) und Rabi...
Article
While cities are known as important habitats for wild bees, a conceptual understanding of how assemblages of wild bee species are shaped by urban environments is limited. We applied a functional approach to test how taxonomic and functional diversity within wild bee communities of urban grasslands, and traits of bee species, related to local habita...
Article
Full-text available
Nocturnal arthropods form the prey base for many predators and are an integral part of complex food webs. However, there is limited understanding of the mechanisms influencing invertebrates at urban water bodies and the potential flow-on effects to their predators. This study aims to: (i) understand the importance of standing water bodies for noctu...
Article
Full-text available
Urban biodiversity conservation requires an understanding of how urbanization modulates biodiversity patterns and the associated ecosystem services. While important advances have been made in the conceptual development of urban biodiversity research over the last decades, challenges remain in understanding the interactions between different groups...
Article
The Galapagos archipelago is an ideal location for studying species differentiation on oceanic islands due to its isolation and geological youth. Spiders, as early colonisers, are good model organisms to understand these processes. The aim of this study is to update the list of spiders found in Galapagos and investigate the current distribution pat...
Article
Full-text available
Anthropogenic changes in climate, land use, and disturbance regimes, as well as introductions of non-native species can lead to the transformation of many ecosystems. The resulting novel ecosystems are usually characterized by species assemblages that have not occurred previously in a given area. Quantifying the ecological novelty of communities (i...
Article
Full-text available
Many cities aim to increase urban forest cover to benefit residents through the provision of ecosystem services and to promote biodiversity. As a complement to traditional forest plantings, we address opportunities associated with “emerging urban forests” (i.e., spontaneously developing forests in cities) for urban biodiversity conservation. We qua...
Preprint
Full-text available
Anthropogenic changes in climate, land use and disturbance regimes, as well as introductions of non-native species can lead to the transformation of many ecosystems. The resulting novel ecosystems are usually characterized by species assemblages that have not occurred previously in a given area. Quantifying the ecological novelty of communities (i....
Article
Full-text available
Cities can support biodiversity conservation as they often provide valuable secondary habitats for animals, and in particular invertebrates. In this context, Berlin – as a green capital – has a great potential and thus biodiversity surveys are mandatory to increase data availability. Urban dry grasslands are known to be especially diverse, but to d...
Article
Full-text available
Pollination is a key ecological process, and invasive alien plant species have been shown to significantly affect plant-pollinator interactions. Yet, the role of the environmental context in modulating such processes is understudied. As urbanisation is a major component of global change, being associated with a range of stressors (e.g. heat, pollut...
Article
Carabid beetles (Coleoptera: Carabidae) of dry grasslands in Berlin (and Brandenburg): Carabid beetles were sampled at 52 dry grassland sites in Berlin and Brandenburg in 2017 from May to July and from September to October. In all, 106 species were collected by using pitfall traps. Ten species of conservation concern (red list category 1-3) were fo...
Article
Wild bees of dry grasslands in Berlin: During the summer of 2017, 108 bee species were sampled in urban grasslands within the city of Berlin. 25 of them are listed as more or less endangered in the Red Data List of Berlin and 16 wild bee species are specialized in their dietary behaviour (oligolectic). Worth mentioning are the findings of Lasioglos...
Article
Full-text available
With urban areas growing worldwide, so does artificial light at night (ALAN) which negatively affects many nocturnal animals, including bats. The response of bats to ALAN ranges from some opportunistic species taking advantage of insect aggregations around street lamps, particularly those emitting ultraviolet (UV) light, to others avoiding lit area...
Poster
Green areas of cities encompass a large range of wildlife species. In recent years, research focused on understanding the environmental conditions that allow for any particular species to settle in an urban area, thereby covering different taxa from mammals to invertebrates. Usually such studies focus on one species or a group of very similar speci...
Article
Full-text available
Urbanisation is a growing global phenomenon having multiple ecological consequences. However, the effects of urbanisation on biodiversity remain ambiguous, and some evidence exists that cities provide valuable secondary habitats for many species, possibly mitigating regional biodiversity loss. Therefore, the value of urban sites for biodiversity de...
Article
We analyzed effects of pitfall trap color on spider catches using four different pitfall trap colors (white, yellow, green, brown). For each color, we installed 17 pitfall traps at two grassland sites, respectively, and sampled 77 species from 6,202 individuals. Number of species showed no significant differences but Shannon- and Simpson-diversity...
Article
Full-text available
In agricultural landscapes, semi-natural habitats are scarce and remaining habitat patches are largely isolated. However, linear landscape elements might facilitate dispersal of plant species through the agricultural landscape matrix. We investigated the following research questions: 1. are open linear landscape elements (LLE) effective corridors f...
Data
Vegetation relevés. (CSV)
Data
Study areas. UTM (zone 32N) coordinates of centroids of study areas. (DOCX)
Data
Species groups. Definitions of phytosociological groups and dispersal-distance classes. (DOCX)
Data
Species list. Species list with assignments to phytosociological groups and dispersal-distance classes. (DOCX)
Data
Metadata. Metadata of the dataset used in the article. (TXT)
Data
Script. R script of statistical analyses. (R)
Data
Model setup. Setup of Generalised Linear Mixed Models. (DOCX)
Data
Model summaries. Summary tables of Generalised Linear Mixed Models. (DOCX)
Poster
Full-text available
Multiple disturbances in the biotic and abiotic environment derive from urbanization processes. They lead to barriers to species dispersal as well as novel niches. Our aim is to get a grip on environmental factors shaping biodiversity patterns and community assembly in environments. To this end, we used various methods to gather data from different...
Article
Full-text available
El bosque de Scalesia, que alberga al más alto número de especies de plantas y animales en Santa Cruz, se ha visto reducido de manera drástica por actividades agrícolas en el pasado y más recientemente por plantas invasoras (Rentería & Buddenhagen, 2006). En Santa Cruz solo quedan 100 ha, menos de 1% de su distribución original, dándose la mayor co...
Article
Full-text available
The Scalesia forest, housing the highest number of plant and animal species in the highlands of Santa Cruz, has been drastically reduced by agricultural activities in the past and more recently, by invasive plants (Rentería & Buddenhagen, 2006). On Santa Cruz, about 100 ha remain, less than 1% of its original distribution, with the largest concentr...
Article
Full-text available
ContextThe relative importance of habitat area and connectivity for species richness is often unknown. Connectivity effects may be confounded with area effects or they may be of minor importance as posited by the habitat-amount hypothesis. Objectives We studied effects of habitat area and connectivity of linear landscape elements for plant species...
Article
Urban wastelands are considered to be valuable habitats for biodiversity conservation, but empirical evidence for several poorly investigated taxa such as grasshoppers is still pending - although urgently required for reasonable habitat management and urban planning. For the first time, we analysed grasshopper diversity of urban wastelands at diffe...
Article
Full-text available
Aims Resistance distance, based on circuit theory, is a promising metric for modelling effects of landscape configuration on dispersal of organisms and the resulting population and community patterns. The values of resistance distance reflect the likelihood of a random walker to reach from a source to a certain destination in the landscape. Althou...
Article
In this paper we propose Trebacosa brunhesi Villepoux, 2007 as a junior synonym of Trebacosa europaea Szinetár & Kan-csal, 2007 based on the examination of specimens from all the localities from where those species are known. Illustration of the type species of the genus, Trebacosa marxi (Stone, 1890) and specimens from all known localities of T. e...
Article
In face of a dramatic decline of wild bee species in many rural landscapes, potential conservation functions of urban areas gain importance. Yet effects of urbanization on pollinators, and in particular on wild bees, remain ambiguous and not comprehensively understood. This is especially true for amenity grassland and extensively managed wastelands...
Data
Species list List of bee species caught in 30 study sites in Marzahn-Hellersdorf/Berlin during early summer (15th and 16th of June) and midsummer (30th and 31st of July) in 2012 (nomenclature followed Westrich et al., 2008). Explanations: R+ = Bee species significantly affiliated to restoration (SIMPER analysis, P < 0.05).