Alexander Keller

Professor

Ludwig-Maximilians-Universität München

Germany

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Professor Alexander Keller is a faculty member at Ludwig-Maximilians-Universität München, Germany. His research focuses on urban and rural ecosystems, bumblebee foraging strategies, and the ecological impacts of cold waves, among other topics. Recent articles include studies on invertebrate abundance in grasslands, plant species richness in fragmented landscapes, and the interactions in bee-angiosperm mutualisms.

Articles (20)

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2025

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2022

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2022

Collaborators (28)

Rabea Schweiger

GERMANY

Alexander Keller

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Articles (20)

The Significance of Genetic Relatedness and Nest Sharing on the Worker‐Worker Similarity of Gut Bacterial Microbiome and Cuticular Hydrocarbon Profile in a Sweat Bee

Urban bumblebees diversify their foraging strategy to maintain nutrient intake

Floral resources in the surrounding landscape matrix augment plant species richness of bumblebee pollen loads in small, fragmented calcareous grasslands

Experimental reduction of land use increases invertebrate abundance in grasslands

Data on the diet and nutrition of urban and rural bumblebees

Cold waves in the Amazon rainforest and their ecological impact

Nutrients or resin? – The relationship between resin and food foraging in stingless bees

Microbes, the ‘silent third partners’ of bee–angiosperm mutualisms

High Resource Overlap and a Consistently Generalised Pattern of Interactions in a Bat–Flower Network in a Seasonally Dry Landscape

Sugar perception in honeybees

From Alien Species to Alien Communities: Host- and Habitat-Associated Microbiomes in an Alien Amphibian

The effects of crop type, landscape composition and agroecological practices on biodiversity and ecosystem services in tropical smallholder farms

Comparing the succession of microbial communities throughout development in field and laboratory nests of the ambrosia beetle Xyleborinus saxesenii

Inter‐ and intraspecific phytochemical variation correlate with epiphytic flower and leaf bacterial communities

Ten (mostly) simple rules to future‐proof trait data in ecological and evolutionary sciences

Opportunistic Bacteria of Grapevine Crown Galls Are Equipped with the Genomic Repertoire for Opine Utilization

Plants, pollinators and their interactions under global ecological change: The role of pollen DNA metabarcoding

Bacterial gut microbiomes of aculeate brood parasites overlap with their aculeate hosts’, but have higher diversity and specialization

Evidence for a chemical arms race between cuckoo wasps of the genus Hedychrum and their distantly related host apoid wasps

First experimental evidence for active farming in ambrosia beetles and strong heredity of garden microbiomes

Collaborators (28)

Rabea Schweiger

Aaron Iverson

Rodney T Richardson

Dietmar Geiger

Rachael Gallagher

David A Donoso

Daniel S. Falster

Berry Brosi

Bertrand Fournier

Helge Bruelheide

Thomas Schmitt

Sara Diana Leonhardt

Ingolf Steffan‐Dewenter

Rachel Bezner Kerr

Wolfgang Weisser

Peter Biedermann

Carlo Polidori

Robert R. Junker

Caterina Penone

Quinn McFrederick

Mark Chapman

Claus Rasmussen

Veronica Zamora Gutierrez

Brian J. Enquist

Hans Jacquemyn

Catrin Westphal

Ricarda Scheiner

Nico Blüthgen

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