Research interests

  • Behavioral Ecology and Ethodiversity
  • Chemical Communication
  • Environmental Stressors
  • Neotropics
  • Population dynamics and Molecular Ecology
  • Wild bee health and Conservation
  • Agroecology and Sustainability

Scientific projects

Bees are one of the most important groups of pollinators in the globe. Wild bees are responsible for reproduction of wild plant species but also of plants consumed by humans through pollination. Despite the pivotal role of wild bees in the stability of ecosystem services, recent reports on bee population dynamics agree that wild bees are being threatened with reduction of its diversity/abundance especially in agricultural environments. I am a behavioral ecologist with a background in the natural history of wild bees, bee-plant interactions and molecular ecology. My research is based on experimental biology at the laboratory and at (semi) field levels. Currently I am coordinating a project “Wild bee reproduction”. The aim of the project is to enhance our overall knowledge over the role of organic farming practices in wild bee conservation. Moreover, I perform experiments to assess potential causes of bee decline on agricultural fields by studying the effect of environmental stressors on behavioral dynamics and its consequence in the reproduction of wild bees.

Lastly, I am part of the coordinating group of the project BRASILICO, in Brazil. In this collaborative study, we are performing a simultaneous and systematical monitoring of wild bees at a common plant species (basil).

You can also find me on ResearchGate




Boff S & Ayasse M (2024). Exposure to sublethal concentration of flupyradifurone alterssexual behavior and cuticular hydrocarbon profile inHeriades truncorum, an oligolectic solitary bee. Insect Science 31: 859-869.

Boff S, da Luz CFP, Raizer J et al (2024). Deforestation narrows pollen diet diversity of generalist orchid bees. J Insect Conserv.

Boff S, Somavilla A (2024). Scientific note on a Neotropical wasp preying on stingless bees. Apidologie 55: 21.


Boff S, Ayasse M (2023). Exposure to sublethal concentration of flupyradifurone alterssexual behavior and cuticular hydrocarbon profile inHeriades truncorum, an oligolectic solitary bee. Insect Science 0: 1-11.


Ganuza C, Ayasse M & Boff S (2022). Chemical and Mechanical Signals Trigger Courtship in the Wild Large-Headed Resin Bee Heriades truncorum. J Insect Behav.

Boff S, Keller A, Raizer J and Lupi D (2022). Decreased efficiency of pollen collection due to Sulfoxaflor exposure leads to a reduction in the size of bumble bee workers in late European summer. Front. Ecol. Evol. 10:842563.

Boff S, Conrad T, Raizer J, Wehrhahn M, Bayer M, Friedel A, Theodorou P, Schmitt T & Lupi D (2022). Low toxicity crop fungicide (fenbuconazole) impacts reproductive male quality signals leading to a reduction of mating success in a wild solitary bee. Journal of Applied Ecology, 00, 1-12.

Boff S (2022). Mating behaviour of the large-head resin bee Heriades truncorum (Megachilidae: Osminii) suggests female plastic strategy in selection of a mating partner and male quality assessment. Apidologie 53, 9.


Boff S, Scheiner R, Raizer J, Lupi D (2021). Survival rate and changes in foraging performances of solitary bees exposed to a novel insecticide. Ecotoxicology and Environmental Safety 211:111869.

Ferreira EA, Boff S, Verzea S, Mussury, MR (2021). Bioecological and behavioral interaction between pollinating bees and the pioneer shrub Ludwigia nervosa in degraded area. Biology 10(2): 114.


Boff S, Friedel A (2020).  Dynamics of nest occupation and homing of solitary bees in painted trap nests. Ecological Entomology 46(2): 496-499.

Boff S, Henrique JM, Friedel A, Raizer J (2020). Disentangling the path of pollinator attraction in temporally colored flowers’ Tropical Insect Science

Boff S, Raizer J, Lupi D (2020). Environmental display can buffer the effect of pesticides on solitary bees. Insects 11(7): 417.

Giovanetti M, Giuliani C, Boff S, Fico G, Lupi D (2020). Public perception of nature drives science: native and exotic plants interacting with local pollinators in a botanic garden. Plos One :


Friedel A, Lattorff HMG, Quezada-Euáan JJ, Boff S (2019). Shared reproduction and sex ratio adjustment to clutch size in a socially polymorphic orchid bee. Ethology 126(1): 88-96.

Friedel A, Oliveira M, Boff S (2019). Hitchhiking meloid larva upon male Eulaema mocsaryi (Hymenoptera: Apidae): A new host cleptoparasite interaction in the Amazon rainforest. Studies on Neotropical Fauna and Environment 54(2).

Cordeiro GD, Boff S, Alves-dos-Santos I (2019). Trap-nesting bees communities from protected areas of Atlantic Forest, southeastern Brazil. Sociobiology 66:306-15.

Sobreiro AI, Peres LLS, Boff S, Henrique JA, Alves JrVV (2019). Continuous micro-environments associated orchid bees benefit from an Atlantic Forest remnant, Paraná State, Brazil. Sociobiology 66: 293-305.

Mayack C, Boff S (2019). LD50 values may be misleading predictors of neonicotinoid insecticide toxicity across different bee species. Uludag BeeJournal 19(1): 19-33.


Boff S, Friedel A, Mussury MR, Lenis PR, Raizer J (2018). Changes in social behavior are induced by pesticide ingestion in a Neotropical stingless bee. Ecotoxicology and Environmental Safety 164: 548-553.  

Boff S, Melo-de-Pinna GFA, Pott A, Araujo AC (2018). High visitation rate of oil bees may increase pollination efficiency of Couepia uiti in Pantanal wetlands. Apidologie 49: 747- 758.

Boff S, Friedel A, Miertsch A, Quezada-Euán JJG, Paxton RJ, HMG Lattorff (2018). Ascientific note on validation of housekeeping genes for the primitively eusocial bee Euglossa viridissima (Apidae: Euglossini). Sociobiology 65: 766.

Boff S, Alves dos Santos I (2018). Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini). Journal of Hymenoptera Research 62: 33-44.


Boff S, Saito CA, Alves dos Santos I (2017). Multiple aggressions among nestmates lead to weak dominance hampering primitively eusocial behaviour in an orchid bee. Sociobiology 64: 202.


Book chapter

Crivelaro AZ, Lenis PR, Dolacio TA, Boff S. Nesting biology and foraging trips of the solitary wasp Pachodynerus guadulpensis (Saussure, 1853). Uberlândia, EDUFU.


Boff S, Forfert N, Paxton RJ, Montejo E, Quezada-Euan JJ (2015). A behavioral guard caste in a primitively eusocial orchid bee, Euglossa viridissima, helps defend the nest against resin theft by conspecifics. Insectes Sociaux 62: 247-249.


Boff S, Soro A, Paxton RJ, Alves-dos-Santos I (2014). Island isolation reduces genetic diversity but does not elevate diploid male production in a Neotropical bee. Conservation Genetics 15: 1123-1135.

Boff S, Demarco D, Marchi P, Alves-dos-Santos I (2014). Perfume production in flowers of Angelonia. Apidologie 46: 84-91.

Giannini TC, Boff S, Cordeiro GD, Cartolano Jr EA, Veiga AK, Imperatriz-Fonseca VL, Saraiva AM (2014). Crop pollinators in Brazil: a review of reported interactions. Apidologie 46: 209-223.  

Penha RE, Gaglianone MC, Almeida FS, Boff S, Sofia S (2014). Mitochondrial DNA of Euglossa iopoecila (Apidae, Euglossini) reveals two distinct lineages for this orchid bee endemic to the Atlantic Forest. Apidologie 46: 346-358.


Boff S, Araujo AC & Pott A (2013). Interactions of bees (Hymenoptera: Apoidea) and flowers in forest islets of southern Pantanal wetland. Biota Neotropica 13(4)

Cordeiro GD, Boff S, Caetano TA, Fernandes PC, Alves-dos-Santos I (2013). Euglossini bees from Atlantic forest of São Paulo, Brazil. Apidologie 44: 254-267.

Santos CF, Boff S (2013). Subtle visits despite guards: Theft from nest of stingless bee (Meliponini) by orchid bee (Euglossini). Entomological Research 40: 233-235.


Boff S, Luz CP, Araujo AC, Pott A (2010). Pollen analysis reveals plants foraged by Africanized honeybees in the Southern Pantanal, Brazil. Neotropical Entomology 40:47-54.


Boff S, Graciolli G, Boaretto AG, Marques MR (2008). Visiting insects of exudate gums by Terminalia argentea Mart. & Zucc (Combretaceae). Revista Brasileira de Entomologia 52: 477-479. 



  • Dr. Samuel Boff
  • Institute of Evolutionary Ecology and Conservation Genomics
  • Ulm University
  • Albert-Einstein-Allee 11
  • D-89081 Ulm, Germany
  • Tel. +49 (0)731 50 22665
  • Office: M25 4112