Search

Your search keyword '"Maarel, Eddy van der"' showing total 6 results
Start Over Author "Maarel, Eddy van der"
6 results on '"Maarel, Eddy van der"'

2. GrassPlot - a Database of Multi-Scale Plant Diversity in Palaearctic Grasslands

Author

Dengler, Jurgen, Wagner, Victoria, Dembicz, Iwona, Garcfa-Mijangos, ltziar, Naqinezhad, Alireza, Boch, Steffen, Chiarucci, Alessandro, Conradi, Timo, Filibeck, Goffredo, Guarino, Riccardo, Janisova, Monika, Steinbauer, Manuel J, Acic, Svetlana, Acosta, Alicia T. R, Akasaka, Munemitsu, Allers, Marc-Andre, Apostolova, Iva, Axmanova, Irena, Bakan, Branko, Baranova, Alina, Bardy-Durchhalter, Manfred, Bartha, Sandor, Baumann, Esther, Becker, Thomas, Becker, Ute, Belonovskaya, Elena, Bengtsson, Karin, Alonso, Jose Luis Benito, Berastegi, Asun, Bergamini, Ariel, Bonini, Ilaria, Bruun, Hans Henrik, Budzhak, Vasyl, Bueno, Alvaro, Campos, Juan Antonio, Cancellieri, Laura, Carboni, Marta, Chocarro, Cristina, Conti, Luisa, Czarniecka-Wiera, Marta, Frenne, Pieter De, Deak, Balazs, Didukh, Yakiv P, Diekmann, Martin, Dolnik, Christian, Dupre, Cecilia, Ecker, Klaus, Ermakov, Nikolai, Erschbamer, Brigitta, Escudero, Adrian, Etayo, Javier, Fajmonova, Zuzana, Felde, Vivian A, Calzado, Maria Rosa Fernandez, Finckh, Manfred, Fotiadis, Georgios, Fracchiolla, Mariano, Ganeva, Anna, Garcfa-Magro, Daniel, Gavilan, Rosario G, Germany, Markus, Giladi, ltamar, Gillet, Francois, Galdo, Gian Pietro Giusso del, Gonzalez, Jose M, Grytnes, John-Arvid, Hajek, Michal, Hajkova, Petra, Helm, Aveliina, Herrera, Mercedes, Hettenbergerova, Eva, Hobohm, Carsten, Hullbusch, Elisabeth M, lngerpuu, Nele, Jandt, Ute, Jeltsch, Florian, Jensen, Kai, Jentsch, Anke, Jeschke, Michael, Jimenez-Alfaro, Borja, Kacki, Zygmunt, Kakinuma, Kaoru, Kapfer, Jutta, Kavgaci, Ali, Kelemen, Andras, Kiehl, Kathrin, Koyama, Asuka, Koyanagi, Tamayo F, Kozub, Lukasz, Kuzemko, Anna, Kyrkjeeide, Magni Olsen, Landi, Sara, Langer, Nancy, Lastrucci, Lorenzo, Lazzaro, Lorenzo, Lelli, Chiara, Leps, Jan, Lobel, Swantje, Luzuriaga, Arantzazu L, Maccherini, Simona, Magnes, Martin, Malicki, Marek, Marceno, Corrado, Mardari, Constantin, Mauchamp, Leslie, May, Felix, Michelsen, Ottar, Mesa, Joaquin Melero, Molnar, Zsolt, Moysiyenko, Ivan Y, Nakaga, Yuko K, Natcheva, Rayna, Noroozi, Jalil, Pakeman, Robin J, Palpurina, Salza, Partel, Meelis, Patsch, Ricarda, Pauli, Harald, Pedashenko, Hristo, Peet, Robert K, Pielech, Remigiusz, Pipenbaher, Natasa, Pirini, Chrisoula, Pleskova, Zuzana, Polyakova, Mariya A, Prentice, Honor C, Reinecke, Jennifer, Reitalu, Triin, Rodriguez-Rojo, Maria Pilar, Rolecek, Jan, Rankin, Vladimir, Rosati, Leonardo, Rosen, Ejvind, Ruprecht, Eszter, Rusina, Solvita, Sabovljevic, Marko, Sanchez, Ana Marfa, Savchenko, Galina, Schuhmacher, Oliver, Skornik, Sonja, Sperandii, Marta Gaia, Staniaszek-Kik, Monika, Stevanovic-Dajic, Zora, Stock, Marin, Suchrow, Sigrid, Sutcliffe, Laura M.E, Swacha, Grzegorz, Sykes, Martin, Szabo, Anna, Talebi, Amir, Tanase, Catalin, Terzi, Massimo, Tolgyesi, Csaba, Torca, Marta, Torok, Peter, Tothmeresz, Bela, Tsarevskaya, Nadezda, Tsiripidis, loannis, Tzonev, Rossen, Ushimaru, Atushi, Valko, Orsolya, Maarel, Eddy van der, Vanneste, Thomas, Vashenyak, luliia, Vassilev, Kiril, Viciani, Daniele, Villar, Luis, Virtanen, Risto, Kasie, Ivana Vitasovic, Wang, Yun, Weiser, Frank, Went, Julia, Wesche, Karsten, White, Hannah, Winkler, Manuela, Zaniewski, Piotr T, Zhang, Hui, Ziv, Varon, Znamenskiy, Sergey, and Biurrun, ldoia

Subjects
Geosciences (General), Documentation And Information Science
Abstract

GrassPlot is a collaborative vegetation-plot database organised by the Eurasian Dry Grassland Group (EDGG)and listed in the Global Index of Vegetation-Plot Databases (GIVD ID EU-00-003). GrassPlot collects plot records (releves) from grasslands and other open habitats of the Palaearctic biogeographic realm. It focuses on precisely delimited plots of eight standard grain sizes (0.0001; 0.001; ... 1,000 m_) and on nested-plot series withat least four different grain sizes. The usage of GrassPlot is regulated through Bylaws that intend to balance the interests of data contributors and data users. The current version (v. 1.00) contains data for approximately 170,000 plots of different sizes and 2,800 nested-plot series. The key components are richness data and metadata.However, most included datasets also encompass compositional data. About 14,000 plots have near-complete records of terricolous bryophytes and lichens in addition to vascular plants. At present, GrassPlot contains data from 36 countries throughout the Palaearctic, spread across elevational gradients and major grassland types. GrassPlot with its multi-scale and multi-taxon focus complements the larger international vegetation plot databases, such as the European Vegetation Archive (EVA) and the global database "sPlot". Its main aim is to facilitate studies on the scale- and taxon-dependency of biodiversity patterns and drivers along macroecological gradients. GrassPlot is a dynamic database and will expand through new data collection coordinated by the elected Governing Board. We invite researchers with suitable data to join GrassPlot. Researchers with project ideas addressable with GrassPlot data are welcome to submit proposals to the Governing Board.

Published
2018
Full Text
View/download PDF

3. Changes in allozyme frequencies in Festuca ovina populations after a 9-year nutrient/water experiment

Author

Prentice, Honor C., Lonn, Mikael, Lager, Helena, Rosen, Ejvind, and Maarel, Eddy van der

Subjects
Plant populations -- Research, Plant communities -- Research, Grassland ecology -- Research, Grasses -- Environmental aspects, Biological sciences, Environmental issues
Abstract

1 The grass Festuca ovina is an important constituent of the species-rich 'alvar' grasslands on the Baltic island of 01and. Levels of allozyme polymorphism are high and variation is known to be correlated with habitat variation (soil moisture, pH and depth). 2 A 9-year field experiment on species diversity provided replicate plots (in three sites) that had been subjected to six different experimental treatments (control; N + P + K; P + K; N + K; K; water). 3 Samples of F. ovina were collected and analyses of deviance were used to investigate associations between allele frequencies, at each of four polymorphic loci, and the nutrient/water treatments. We also used the models to estimate predicted values for the alleles in different nutrient/water treatments and in interactions involving the nutrient/water treatments and additional explanatory variables (vegetation height and clipping). 4 There were significant allozyme frequency differences between samples of F. ovina from the six different nutrient/water treatments in the grassland experiment. Frequencies in the fertilized or watered plots had diverged from those in the control plots. There were also significant allele-habitat associations (after the removal of site effects), especially at the Pgi-2 locus. 5 Soil moisture was the only variable that was common to this study and an earlier study of variation in F. ovina in natural habitats. In natural populations, the Pgi-22 allele was significantly associated with soil moisture and was more common in dry habitats. Our findings that the frequency of the Pgi-2-2 allele was significantly affected by the nutrient/water treatments, and that it was rarest in the treatment that involved the addition of extra water, were therefore as predicted. 6 The study supports the conclusion, from an earlier study of populations in unmanipulated grassland habitats, that selection is contributing to the fine-scale patterning of genetic variation in the alvar populations of F. ovina. Keywords: allele-habitat associations, fertilization, grassland, selection, vegetation height

Published
2000

Catalog

Books, media, physical & digital resources
See catalog results