Theodor Keller

566 total citations
7 papers, 459 citations indexed

About

Theodor Keller is a scholar working on Plant Science, Global and Planetary Change and Nature and Landscape Conservation. According to data from OpenAlex, Theodor Keller has authored 7 papers receiving a total of 459 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Plant Science, 5 papers in Global and Planetary Change and 2 papers in Nature and Landscape Conservation. Recurrent topics in Theodor Keller's work include Plant responses to elevated CO2 (7 papers), Plant Water Relations and Carbon Dynamics (5 papers) and Seed Germination and Physiology (2 papers). Theodor Keller is often cited by papers focused on Plant responses to elevated CO2 (7 papers), Plant Water Relations and Carbon Dynamics (5 papers) and Seed Germination and Physiology (2 papers). Theodor Keller collaborates with scholars based in Switzerland and Japan. Theodor Keller's co-authors include Rainer Matyssek, Christoph Scheidegger, Matthias Saurer, Takayoshi Koike, Madeleine S. Günthardt‐Goerg, W. Landolt and R. Häsler and has published in prestigious journals such as Environmental Pollution, Trees and GeoJournal.

In The Last Decade

Theodor Keller

7 papers receiving 423 citations

Peers

Theodor Keller

PS

GPC

AS

NLC

EEBS

R. K. McConathy United States

Keith E. Idso United States

T. Pfirrmann Germany

S. Nussbaum Switzerland

G.A. Pieters Netherlands

Hans-Dieter Payer Germany

Alessandro Materassi Italy

Tetsushi Yonekura Japan

Chiara Cascio Italy

Marta Pérez-Soba Netherlands

R. K. McConathy United States

Theodor Keller

244 ×0.6

PS

146 ×0.5

GPC

121 ×0.5

AS

61 ×1.1

NLC

32 ×1.2

EEBS

Citations per year, relative to Theodor Keller Theodor Keller (= 1×) peers R. K. McConathy

Countries citing papers authored by Theodor Keller

Since Specialization

Citations

This map shows the geographic impact of Theodor Keller'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 Theodor Keller with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Theodor Keller more than expected).

Fields of papers citing papers by Theodor Keller

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Theodor Keller. 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 Theodor Keller. The network helps show where Theodor Keller may publish in the future.

Co-authorship network of co-authors of Theodor Keller

This figure shows the co-authorship network connecting the top 25 collaborators of Theodor Keller. A scholar is included among the top collaborators of Theodor Keller 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 Theodor Keller. Theodor Keller is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

7 of 7 papers shown

1.

Matyssek, Rainer, Theodor Keller, & Takayoshi Koike. (1993). Branch growth and leaf gas exchange of Populus tremula exposed to low ozone concentrations throughout two growing seasons. Environmental Pollution. 79(1). 1–7. 58 indexed citations

2.

Matyssek, Rainer, Madeleine S. Günthardt‐Goerg, W. Landolt, & Theodor Keller. (1993). Whole-plant growth and leaf formation in ozonated hybrid poplar (Populus × euramericana). Environmental Pollution. 81(3). 207–212. 39 indexed citations

3.

Matyssek, Rainer, et al.. (1993). Differentiation and structural decline in the leaves and bark of birch (Betula pendula) under low ozone concentrations. Trees. 7(2). 116 indexed citations

4.

Matyssek, Rainer, et al.. (1992). Seasonal growth, ?13C in leaves and stem, and phloem structure of birch (Betula pendula) under low ozone concentrations. Trees. 6(2). 104 indexed citations

5.

Matyssek, Rainer, et al.. (1991). Impairment of gas exchange and structure in birch leaves (Betula pendula) caused by low ozone concentrations. Trees. 5(1). 121 indexed citations

6.

Keller, Theodor & R. Häsler. (1988). Some effects of long-term fumigations with ozone on spruce (Picea abies [L.] Karsten). GeoJournal. 17(2). 277–278. 3 indexed citations

7.

Keller, Theodor. (1978). Wintertime atmospheric pollutants—Do they affect the performance of deciduous trees in the ensuing growing season?. Environmental Pollution (1970). 16(4). 243–247. 18 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.

Explore authors with similar magnitude of impact