Alexandra-Maria Klein: h-index, Total Citations, and Citation Map
Alexandra-Maria Klein's h-index is 97 (250 i10-index, 68,241+ total citations across 510+ publications) according to Google Scholar as of August 2026. Alexandra-Maria Klein is affiliated with University of Freiburg.
Alexandra-Maria Klein is a researcher affiliated with University of Freiburg, specializing in Landscape Ecology, Nature Conservation, Pollination Ecology. Their work has been cited 68,241 times. This profile visualizes their global influence, highlighting strong citation networks in Germany.
Alexandra-Maria Klein's Citation Metrics
Bibliometric impact based on 510 indexed publications.
- H-Index
- 97
- i10-Index
- 250
- Total Citations
- 68,241
- Citing Countries
- 79
As of August 2026.
Alexandra-Maria Klein has an h-index of 97 and 68,241 total citations across 510 publications, with research cited by institutions in 79 countries.
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Global Impact Map
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Importance of pollinators in changing landscapes for world crops
200710,730
Top Citing Countries
Top Citing Institutions
Visa Evidence Package
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Significant Contributions
Auto-detected research lines — a seminal paper and the follow-up work building on it. Review and edit before using in a petition. Each Free PDF opens in a new tab — EB-1A organises this into the structure USCIS applies to Criterion 5 of 8 CFR § 204.5(h)(3)(v); EB-1B re-frames it under § 204.5(i)(3) (outstanding researcher); NIW presents it under prong 2 of Matter of Dhanasar.
The researcher established the critical role of wild pollinators in global crop production, demonstrating their independent value beyond honey bees through highly cited, foundational studies.
The researcher established a conceptual framework linking land-use change to mobile organism ecosystem services, later expanding this into broader hypotheses on landscape moderation of biodiversity.
Citation trend (last 10 years)Click to expand
Citation Trend (Last 10 Years)
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About Alexandra-Maria Klein's research
Alexandra-Maria Klein is a researcher in Landscape Ecology, Nature Conservation and Pollination Ecology at University of Freiburg. Their work has been cited 68,241 times across 510 publications (h-index 97), according to Google Scholar.
Their most-cited work, “Importance of pollinators in changing landscapes for world crops” (2007), has accumulated 10,730 citations. Other influential works include “Landscape perspectives on agricultural intensification and biodiversity–ecosystem service management” (2005) with 6,132 citations and “Wild pollinators enhance fruit set of crops regardless of honey bee abundance” (2013) with 3,615 citations.
Citations of Alexandra-Maria Klein's research come primarily from Germany, United States and China, reflecting international research impact across 5+ countries. The interactive citation map above shows the full geographic distribution of the institutions citing this work.
