Mycorrhizal Interactions of Orchids Colonizing Estonian Mine Tailings HillsRichard P. Shefferson, Tiiu Kull and Kadri Tali · American Journal of Botany · 2008

Demographic response to shading and defoliation in two woodland orchidsRichard P. Shefferson; Tiiu Kull; Kadri Tali · 2006

The evolutionary ecology of vegetative dormancy in mature herbaceous perennial plantsRichard P. Shefferson · 2009

Dormancy is associated with decreased adult survival in the burnt orchid, Neotinea ustulataRICHARD P. SHEFFERSON; KADRI TALI · 2007

Adult Whole-Plant Dormancy Induced by Stress in Long-Lived OrchidsRichard P. Shefferson, Tiiu Kull and Kadri Tali · Ecology · 2005

Dormancy is Associated with Decreased Adult Survival in the Burnt Orchid, Neotinea ustulataRichard P. Shefferson and Kadri Tali · Journal of Ecology · 2007

Weather and herbivores influence fertility in the endangered fernBotrychium multifidum(S.G. Gmel.) RuprMeeli Mesipuu; Richard P. Shefferson; Tiiu Kull · 2009

Habitat size: a factor determining the opportunity for encounters between mosquito larvae and aquatic predators.Sunahara, Toshihiko; Ishizaka, Kenji; Mogi, Motoyoshi · Journal of vector ecology : journal of the Society for Vector Ecology · 2002

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