1,720,995 research outputs found
Environmental data used for PCA
No full textA collection of continuous data used in the paper "Non-mycorrhizal fungal presence within roots increases across an urban gradient in Berlin".The data was collected in 2017 by Lena Fiechter and was made available by Moritz von der Lippe and Anne Hiller. Please see: Moritz von der Lippe et al. (2020) "CityScapeLab Berlin: A Research Platform for Untangling Urbanization Effects on Biodiversity".</div
Environmental data used for PCA, and site age
No full textA dataset established in 2017 containing environmental data from the CityScapeLabs research platform in Berlin, Germany.This dataset is a subset of the main CityScapeLabs dataset which was used in the paper titled "Soil physico-chemical properties change across an urbanity gradient in Berlin", currently in review.Data was collected by Lena Fiechter, Moritz von der Lippe and Anne Hiller, with one additional parameter added by James Whitehead.For more details on the CityScapeLab research platform please see:von der Lippe, M.; Buchholz, S.; Hiller, A.; Seitz, B.; Kowarik, I. CityScapeLab Berlin: A Research Platform for Untangling Urbanization Effects on Biodiversity. Sustainability 2020, 12, 2565. https://doi.org/10.3390/su12062565</div
Environmental data used for PCA
No full textThis dataset has had outliers removed and has been formatted in order to be appropriate for use in Principal Component Analysis. The raw data was provided by Moritz von der Lippe and Anne Hiller from TU Berlin, and field measurements were carried out by Lena Fiechter. </p
Interactions between propagule pressure and seed traits shape human-mediated seed dispersal along roads
No full textCrop seed spillage along roads: a factor of uncertainty in the containment of GMO
Get PDFFeral populations of crop species along roadsides contribute to the uncertainty regarding the containment of genetically modified (GM) crops, as the feral populations could promote the persistence of transgenes outside of cultivated fields. Roadside populations of several common crop species are known to occur far from arable fields, and the dispersal pathways that promote their recruitment in road verges are unclear. Human-aided dispersal, in particular adhesive dispersal by vehicles, has been suggested as a possible vector, but this has not yet been proven experimentally. We sampled the seed rain from vehicles inside two motorway tunnels in an urban environment to reveal the contribution of crop species to seeds unintentionally dispersed by traffic beyond agricultural production areas. Three species of arable crops, wheat Triticum aestivum , rye Secale cereale and oilseed rape Brassica napus , were among the most frequent species deposited by vehicles inside the motorway tunnels. Each of the three species was clearly more predominant in one direction of traffic. While seeds of Triticum aestivum and Secale cereale were primarily transported into the city, Brassica napus was significantly more abundant in samples from lanes leading out of the city. Seed sources in the local surroundings of the tunnels were virtually nonexistent, and the high magnitude of seed deposition combined with high seed weights suggests a dispersal mechanism different from other species in the sample, at least for Triticum aestivum and Secale cereale . This provides evidence that spillage during transport is a major driver for long-distance dispersal of crops. Our results suggest that seed dispersal by vehicles is the major driver in the recruitment of roadside populations of arable crops, providing a possible escape route for GM crops. Risk management should thus aim at curbing transport losses of GM crops. Roadsides and urban areas are important habitats for feral populations of some common arable crop species, such as Brassica napus , Triticum aestivum and Secale cereale The occurrence of feral crop populations far from arable fields as well as their population dynamics suggest that most roadside populations rely on repeated introductions of seeds due to human-mediated longdistance dispersal. However, the actual dispersal pathways and escape routes remain unknown. Seed dispersal by vehicles from feral roadside populations has been suggested as a relevant mechanism for the colonisation of new sites by Brassica napus in urban area
Plant population success across urban ecosystems: A framework to inform biodiversity conservation in cities
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