Pollination

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The Latitudinal Biotic Interaction Hypothesis revisited: contrasting latitudinal richness gradients in actively vs. passively accumulated interaction partners of honey bees

ArticlesBy RobertBrodschneider 20. March 2025

Contrasting hypotheses suggest that the number of biotic interactions per species could either increase towards the equator due to the increasing richness of potential interaction partners (Neutral theory), or decrease in the tropics due to increased biotic competition (Latitudinal Biotic Interaction Hypothesis). Empirical testing of these hypotheses remains limited due to practical limitations, differences in…

Spatio-temporal variation in pollen collected by honey bees (Apis mellifera) in rural-urban mosaic landscapes in Northern Europe

ArticlesBy PerKryger 10. February 2025

Pollen is a source of protein, lipids, vitamins and minerals for bees and other flower-visiting insects. The composition of macro- and micronutrients of pollen vary among different plant species. Honey bees are long-distance foragers, collecting nectar and pollen from plants within several kilometers of their hive. Availability of pollen within the foraging range of honey…

Improving wild bee monitoring, sampling methods, and conservation

ArticlesBy SilvioErler 20. January 2025

Bees are the most important group of insect pollinators, but their populations are declining. To gain a better understanding of wild bee responses to different stressors (e.g. land-use change) and conservation measures, regional and national monitoring schemes are currently being established in Germany, which is used here as a model region, and in many other…

Pollen Identification: The Challenges of Color-Based Classification

ArticlesBy RichardOdemer 25. July 2024

Pollen analysis is crucial for studying plant-pollinator interactions, biodiversity, and environmental change. Traditional methods include microscopic examination and modern chromatic assessments. Color-based classification is appealing for its simplicity, but the significant color similarity between different plant species’ pollen grains remains a challenge. In our latest study, we analyzed over 85,000 corbicular pollen samples from 30…

20th International Plant Protection Congress, Athens, Greece

NewsBy AntoniosTsagkarakis 6. November 2023

Dear Members of COLOSS, I have the pleasure to inform you that the 20th International Plant Protection Congress is going to take place in Athens Greece, in July 1-5, 2024, at the Megaron Conference center (https://www.ippcathens2024.gr). During the Congress, the concurrent sessions will be organized: Pesticides and effects on bees (#48) (Chairs: Fani Hatjina, Noa…

The value of insect pollination to yield of oilseed rape (Brassica rapa) in Bangladesh

ArticlesBy RabiulIslam 13. March 2023

Abstract Brassica rapa L., is a crop grown globally and studies have indicated that insect pollination can improve yields. However, the importance of insect pollination in this crop depends on cultivar reproductive biology, insect pollinator species and their abundances. In Bangladesh, the acreage of B. rapa for oilseed production has been expanding, but little is…

Postdoctoral Position in Pollination in a Changing Climate

JobsBy ShelleyHoover 15. July 2022

Come join us! We seeking applicants interested in pollination and climate change research to join our team in 2022. Funding is available to support a postdoctoral position in the laboratory of Dr. Shelley Hoover in the Department of Biological Sciences, University of Lethbridge. The postdoc position is funded for 3 years at $54,000 CDN per…

9th EurBee Congress 2022 in Belgrade, Serbia

NewsBy LjubisaStanisavljevic 20. June 2022

On behalf of the European Association for Bee Research (EurBee) I have the great honour and pleasure to invite you to attend the 9th Congress of Apidology (EurBee 9) convened under the motto: “Save the bees for our future”. The conference intends to promote knowledge exchange and international cooperation and to enable the further exchange…

Pollination and Plant Reproductive Success of Two Ploidy Levels in Red Clover (Trifolium pratense L.)

ArticlesBy PerKryger 10. August 2021

Plant reproduction in red clover requires cross-fertilization via insect pollination. However, the influences of visitation rate and timing on maximizing ovule utilization are yet to be determined. We aimed to study the influences of visitation rate, flowering stage, and self-incompatibility on reproductive success. We applied hand and honey bee pollination in the study of eight…

Different pollination approaches to compare the seed set of diploid and tetraploid red clover Trifolium pratense L.

ArticlesBy PerKryger 5. July 2021

In red clover seed production, low seed yield is limiting the commercial exploitation of tetraploid red clover. To explore if pollination is the limiting factor for the seed yield in tetraploid red clover, we investigated pollinator behaviour and plant reproductive success in diploid (2x) cultivar ‘Rajah’ and tetraploid (4x) cultivar ‘Amos’ using honey bee and…