Herb Distribution in an Acer saccharum Forest

Struik, Gwendolyn J.; Curtis, John T.

doi:10.2307/2422734

Cited by 67 publications

(28 citation statements)

References 8 publications

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“…Alternatively, ground-layer plant communities may be resistant to change from selection harvesting in northern hardwoods. We cannot distinguish between these alternatives, since we did not follow vegetation development in the years immediately post-harvest; however, the latter explanation is plausible for these treatments, because most of the understory species found in this study are poor seed producers and expand their range slowly and vegetatively (Whitford, 1951;Struik and Curtis, 1962). It is unlikely that species were completely eliminated and then reestablished in the nine years since harvest.…”

Section: Discussionmentioning

confidence: 86%

Ground-layer plant community responses to even-age and uneven-age silvicultural treatments in Wisconsin northern hardwood forests

Kern¹,

Palik²,

Strong

2006

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 86%

Ground-layer plant community responses to even-age and uneven-age silvicultural treatments in Wisconsin northern hardwood forests

Kern¹,

Palik²,

Strong

2006

Forest Ecology and Management

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“…In a study of such relationships, Beatty (1984) found that understorey herbs often have patchy distributions, closely related to microtopography. Struik & Curtis (1962) found a significant positive association between treethrow mounds and the herb Hepatica acutiloba. Thompson (1980) studied the patterns of understorey herbs on fallen logs and in treethrow pits, and found that they colonized these sites primarily via vegetative reproduction or animal seed dispersion mechanisms or animals.…”

Section: Effects Of Pit/mound Topography On Forest Ecologymentioning

confidence: 89%

Tree uprooting: review of impacts on forest ecology

et al. 1988

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This paper reviews the ecological effects of tree uprooting. In many forests, disturbance by uprooting is the primary means of maintaining species richness and diversity. Treefall may be due to exogenous factors or it may be endogenously created, although the former predominate. The canopy gap formed by downed trees is often vital to community vegetation dynamics and successional pathways, by providing high light niches (gaps) for pioneer species, by encouraging release of suppressed, shade-tolerant saplings, and through recruitment of new individuals. Nutrient cycling may be affected by uprooting as subsoil materials are brought to the surface, via additions of woody debris to the forest floor, through exposure of bare mineral soil, and by changes in throughfall chemistry. The influence of the resultant pit/mound microtopography on understorey herb distribution is largely due to microclimatic and microtopographic variation. Tree seedling distribution, however, is related to microtopography primarily through differences in soil morphology, nutrition, and moisture content of mound and pit sites.

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“…Several studies of spring ephemeral communities in North America fail to mention any association between the two (Braun 1950;Struik and Curtis 1962;Bratton 1976;Rogers 1982;Motten 1986). Rather, this is likely to be a local effect.…”

Section: Discussionmentioning

confidence: 99%

Fruit and seed set in Mayapple (Podophyllum peltatum): influence of intraspecific factors and local enhancement near Pedicularis canadensis

Laverty¹,

Plowright²

1988

Can. J. Bot.

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LAVERTY, T. M., and PLOWRIGHT, R. C. 1988. Fruit and seed set in Mayapple (Podophyllumpeltatum): influence of intraspecific factors and local enhancement near Pedicularis canadensis. Can. J. Bot. 66: 173 -178. The breeding system and determinants of fruit and seed production in a population of 114 patches of Mayapple (Podophyllumpeltatum L.) were examined. Experimental crosses indicated that Mayapple patches are self-incompatible (clones) and that fruit and seed set were pollinator limited. Mayapple flowers are nectarless yet depend primarily on infrequent visits by nectarsearching bumblebees for pollination. The proportion of flowers setting fruit and ovules setting seed in Mayapple clones was inversely associated with the distance to neighboring clones and the distance to Pedicularis canadensis L. plants. Clones within 45 m of P. canadensis plants (which are heavily visited by bumblebees) showed significant increases in fruit and seed production compared with a similar group of more distant clones. This effect is interpreted as evidence for a facilitative interaction between Mayapple and P. canadensis. LAVERTY, T. M., et PLOWRIGHT, R. C. 1988. Fruit and seed set in Mayapple (Podophyllum peltatum): influence of intraspecific factors and local enhancement near Pedicularis canadensis. Can. J. Bot. 66 : 173-178. Nous avons examink le systkme reproducteur et les diterminants de la production de fruits et de graines dans une population de 114 parcelles de la pomme de mai (Podophyllumpeltatum L.). Des croisements experimentaux ont indiquC que les parcelles de pomme de mai sont autoincompatibles (clones) et que la nouaison (fruits et graines) Ctait limitCe par les pollinisateurs. Les fleurs de la pomme de mai sont sans nectar et pourtant dependent surtout des visites espacCes de bourdons en qu&te de nectar pour la pollinisation. La proportion de fleurs aboutissant a la nouaison et celle d'ovules se transformant en graines chez les clones de pomme de mai Ctaient inversement associCes a la distance qui les sCpare des clones avoisinants et aussi 2 la distance des plants du Pedicularis canadensis L. Les clones situCs a moins de 45 m d'individus du P. canadensis (qui sont assidcment visitis par les bourdons) ont montri. des augmentations significatives dans la production de fruits et de graines en comparaison avec un groupe semblable de clones plus CloignCs. Cet effet est interpret6 comme preuve a l'appui d'une interaction de facilitation entre la pomme de mai et le P. canadensis.[Traduit par la revue]

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Herb Distribution in an Acer saccharum Forest

Cited by 67 publications

References 8 publications

Ground-layer plant community responses to even-age and uneven-age silvicultural treatments in Wisconsin northern hardwood forests

Ground-layer plant community responses to even-age and uneven-age silvicultural treatments in Wisconsin northern hardwood forests

Tree uprooting: review of impacts on forest ecology

Fruit and seed set in Mayapple (Podophyllum peltatum): influence of intraspecific factors and local enhancement near Pedicularis canadensis

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