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pro vyhledávání: '"Margrit E. McIntosh"'
Publikováno v:
Plant Species Biology. 35:6-15
Increases in the incidence and severity of drought threaten the viability of rare plants in arid regions. The endangered Nichol's Turk's head cactus (Echinocactus horizonthalonius Lemaire var. nicholii L. Benson) occurs only in four small, isolated p
Publikováno v:
The Southwestern Naturalist. 56:333-340
Nichol's turk's head cactus Echinocactus horizonthalonius var. nicholii (Cactaceae) occurs in a few isolated populations in the Sonoran Desert of south-central Arizona (Pima and Pinal counties) and in one isolated population in Mexico. Populations of
Autor:
Margrit E. McIntosh
Publikováno v:
Functional Ecology. 19:727-734
Summary 1Resolving the controversy over the prevalence of generalization in plant–pollinator interactions requires field studies characterizing the pollination effectiveness of all a plant's floral visitors. Herein, the pollination effectiveness of
Autor:
Margrit E. McIntosh
Publikováno v:
Plant Ecology. 162:273-288
Plant reproductive output can be limited by a variety of factors, bothintrinsic and extrinsic. I investigated the reproductive biologies of twospecies of unbranched short-columnar cacti, Ferocactuscylindraceus and F. wislizeni. I recordedfemalereprod
Autor:
Margrit E. McIntosh
Publikováno v:
Plant Ecology. 159:1-13
Flowering phenology is often strongly constrained by phylogenetichistory: many closely-related plants have very similar phenologies. On theotherhand, divergent flowering phenologies can function as isolating mechanisms,which may be reinforced if rela
Autor:
Margrit E. McIntosh
Publikováno v:
Ecology. 84:1937-1939