Piippa R. Wäli

1.1k total citations
25 papers, 811 citations indexed

About

Piippa R. Wäli is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Cell Biology. According to data from OpenAlex, Piippa R. Wäli has authored 25 papers receiving a total of 811 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Ecology, Evolution, Behavior and Systematics, 10 papers in Plant Science and 9 papers in Cell Biology. Recurrent topics in Piippa R. Wäli's work include Plant and fungal interactions (14 papers), Mycorrhizal Fungi and Plant Interactions (9 papers) and Plant Pathogens and Fungal Diseases (9 papers). Piippa R. Wäli is often cited by papers focused on Plant and fungal interactions (14 papers), Mycorrhizal Fungi and Plant Interactions (9 papers) and Plant Pathogens and Fungal Diseases (9 papers). Piippa R. Wäli collaborates with scholars based in Finland, Norway and India. Piippa R. Wäli's co-authors include Kari Saikkonen, Marjo Helander, Jouni U. Ahlholm, Anna Liisa Ruotsalainen, Anna Maria Pirttilä, Juha Tuomi, Annamari Markkola, Karita Saravesi, Irma Saloniemi and Timo Kuuluvainen and has published in prestigious journals such as PLoS ONE, Ecology and Trends in Plant Science.

In The Last Decade

Piippa R. Wäli

23 papers receiving 792 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Piippa R. Wäli Finland 17 516 426 281 143 104 25 811
Jenny Holah United States 6 645 1.3× 513 1.2× 325 1.2× 148 1.0× 112 1.1× 7 902
Olivier J.-P. Ball New Zealand 16 809 1.6× 156 0.4× 121 0.4× 380 2.7× 86 0.8× 35 927
Martin Nebel Germany 13 373 0.7× 339 0.8× 85 0.3× 68 0.5× 36 0.3× 29 508
Douglas S. Richmond United States 16 325 0.6× 239 0.6× 55 0.2× 123 0.9× 192 1.8× 45 660
Philipp Resl Austria 13 673 1.3× 563 1.3× 204 0.7× 86 0.6× 60 0.6× 23 835
Bernard Moyersoen United Kingdom 11 198 0.4× 547 1.3× 175 0.6× 90 0.6× 232 2.2× 18 655
Anna Liisa Ruotsalainen Finland 18 301 0.6× 660 1.5× 268 1.0× 64 0.4× 168 1.6× 37 860
Mark P. Dobrowolski Australia 18 208 0.4× 578 1.4× 232 0.8× 280 2.0× 13 0.1× 40 812
G.M. Barker New Zealand 13 319 0.6× 134 0.3× 54 0.2× 144 1.0× 138 1.3× 28 602
Mark Vicari Canada 8 282 0.5× 202 0.5× 109 0.4× 90 0.6× 26 0.3× 14 409

Countries citing papers authored by Piippa R. Wäli

Since Specialization
Citations

This map shows the geographic impact of Piippa R. Wäli's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Piippa R. Wäli with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Piippa R. Wäli more than expected).

Fields of papers citing papers by Piippa R. Wäli

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Piippa R. Wäli. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Piippa R. Wäli. The network helps show where Piippa R. Wäli may publish in the future.

Co-authorship network of co-authors of Piippa R. Wäli

This figure shows the co-authorship network connecting the top 25 collaborators of Piippa R. Wäli. A scholar is included among the top collaborators of Piippa R. Wäli based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Piippa R. Wäli. Piippa R. Wäli is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hopkins, Matthew, Anna‐Kaisa Ronkanen, Anna Maria Pirttilä, et al.. (2025). The effectiveness of nature-based hybrid solutions for the removal of nitrogen and emergent pollutants from municipal wastewater in cold climate conditions. Ecological Engineering. 219. 107711–107711.
2.
Ruotsalainen, Anna Liisa, Piippa R. Wäli, Otso Suominen, et al.. (2024). Does long-term grazing cause cascading impacts on the soil microbiome in mountain birch forests?. Fungal ecology. 69. 101332–101332. 1 indexed citations
3.
Pirttilä, Anna Maria, Janne J. Koskimäki, Piippa R. Wäli, et al.. (2023). Exchange of Microbiomes in Plant-Insect Herbivore Interactions. mBio. 14(2). e0321022–e0321022. 22 indexed citations
4.
Ruotsalainen, Anna Liisa, et al.. (2021). Dark septate endophytes: mutualism from by-products?. Trends in Plant Science. 27(3). 247–254. 63 indexed citations
5.
Sandén, Hans, Mathias Mayer, Sari Stark, et al.. (2019). Moth Outbreaks Reduce Decomposition in Subarctic Forest Soils. Ecosystems. 23(1). 151–163. 19 indexed citations
6.
Wäli, Piippa R., Karita Saravesi, Anna Mari Markkola, et al.. (2018). Different endophyte communities colonize buds of sprouts compared with mature trees of mountain birch recovered from moth herbivory. Tree Physiology. 38(9). 1437–1444. 4 indexed citations
7.
Lappalainen, Katja, Johanna Kärkkäinen, Matti Niemelä, et al.. (2018). Microwave-assisted conversion of novel biomass materials into levulinic acid. Biomass Conversion and Biorefinery. 8(4). 965–970. 21 indexed citations
8.
Saikkonen, Kari, et al.. (2016). Epichloë grass endophytes in sustainable agriculture. Nature Plants. 2(2). 15224–15224. 92 indexed citations
9.
Hellström, Kalle, et al.. (2016). Context-dependent outcomes of subarctic grass-endophyte symbiosis. Fungal ecology. 23. 66–74. 7 indexed citations
10.
Saravesi, Karita, Sami Aikio, Piippa R. Wäli, et al.. (2015). Moth Outbreaks Alter Root-Associated Fungal Communities in Subarctic Mountain Birch Forests. Microbial Ecology. 69(4). 788–797. 54 indexed citations
11.
Gundel, Pedro E., et al.. (2014). Fungal endophyte mediated occurrence of seminiferous and pseudoviviparous panicles in Festuca rubra. Fungal Diversity. 66(1). 69–76. 2 indexed citations
12.
Biuw, Martin, Jane Uhd Jepsen, Juval Cohen, et al.. (2014). Long-term Impacts of Contrasting Management of Large Ungulates in the Arctic Tundra-Forest Ecotone: Ecosystem Structure and Climate Feedback. Ecosystems. 17(5). 890–905. 27 indexed citations
13.
Wäli, Piippa R., et al.. (2013). Is the Pathogenic Ergot Fungus a Conditional Defensive Mutualist for Its Host Grass?. PLoS ONE. 8(7). e69249–e69249. 35 indexed citations
14.
Wäli, Piippa R., et al.. (2013). Contrasting preferences of arbuscular mycorrhizal and dark septate fungi colonizing boreal and subarctic Avenella flexuosa. Mycorrhiza. 24(3). 171–177. 26 indexed citations
15.
Ruotsalainen, Anna Liisa, Piippa R. Wäli, Minna K. Männistö, et al.. (2012). Moth herbivory enhances resource turnover in subarctic mountain birch forests?. Ecology. 94(2). 267–272. 35 indexed citations
16.
Wäli, Piippa R., Marjo Helander, & Kari Saikkonen. (2011). Manipulation of Epichlöe/Neotyphodium -endophyte infection in grasses: elimination of endophytes by heat treatment. Jukuri (Natural Resources Institute Finland (Luke)).
17.
Saikkonen, Kari, Piippa R. Wäli, & Marjo Helander. (2010). Genetic Compatibility Determines Endophyte-Grass Combinations. PLoS ONE. 5(6). e11395–e11395. 74 indexed citations
18.
Wäli, Piippa R., Marjo Helander, Irma Saloniemi, Jouni U. Ahlholm, & Kari Saikkonen. (2008). Variable effects of endophytic fungus on seedling establishment of fine fescues. Oecologia. 159(1). 49–57. 36 indexed citations
19.
Wäli, Piippa R., Jouni U. Ahlholm, Marjo Helander, & Kari Saikkonen. (2006). Occurrence and Genetic Structure of the Systemic Grass Endophyte Epichloë festucae in Fine Fescue Populations. Microbial Ecology. 53(1). 20–29. 41 indexed citations
20.
Helander, Marjo, Piippa R. Wäli, Timo Kuuluvainen, & Kari Saikkonen. (2006). Birch leaf endophytes in managed and natural boreal forests. Canadian Journal of Forest Research. 36(12). 3239–3245. 26 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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