Differentiation and toxicity of taxa of the limetree genus (Tilia) for bumble-bees and other blossom-visiting insects

Differentiation and toxicity of taxa of the genus tilia for bumblebees and other blossom visiting insects. Entomologische Nachrichten und Berichte 34(4): 155-158, 1990

Considerable losses of bumble bees and other flower-visiting insects caused by introduced lime species (Tilia tomentosa, Tilia euchlora). Archiv fur Naturschutz und Landschaftsforschung 29: 117-120, 1989

Considerable losses in bumble bees and other flower-visiting insects due to exotic species of lime (Tilia tomentosa Moench, Tilia euchlora C. Koch). Archiv fur Naturschutz und Landschaftsforschung 29(2): 117-120, 1989

Role of Interspecific dominance-subordination relationship on the appearance of flower-visiting insects , bumble bees, butterflies, syrphid flies. Sci Rep Tohoku Untv Ser Iv Biol 31(4): 275-296, 1965

Poisonings of bumble bees by nectar of the silver lime tilia tomentosa. Bonner Zoologische Beitraege 28(1-2): 149-154, 1977

Blueberry d blossom damage caused by bumble bees bombus occidentalis occidentalis honey bees vaccinium corymbosum d. Canadian Entomologist 101(2): 149-150, 1969

Visiting of lucerne by bumble bees. Pam. Pulaw, 31, 189-99. Bibl. 25, 1968

Visiting of red clover by bumble bees. Pam. Pulaw, 31, 201-20. Bibl. 47, 1968

A comparison of visiting of different clover species by bumble bees. Pam. Pulaw, 31, 221-30. Bibl. 28, 1968

Different bumble bees visiting Digitalis purpurea and its forma heptandra. Mededelingen van de Landbouwhogeschool te Wageningen 75(20): 1-6, 1975

Observations on the number and species of bumble bees visiting red clover. Ann Rept Ent Soc Ontario 73: 16-20, 1942( ), 1943

Studies on the coaction among insects visiting flowers HI Dominance relationship among flower-visiting flies, bees, and butterflies. 1963

The flower-visiting behaviour of bumble bees: floral complexity and learning. Canadian Journal of Zoology, 587: 1324-1335, 1980