Plant Ecology
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Effects of light competition and litter on the performance of Viola palustris and on species composition and diversity of an abandoned fen meadow
Plant Ecology - Tập 155 - Trang 169-181 - 2001
Theeffects of light competition and litter on seedling recruitment and theperformance of established individuals were examined in Violapalustris. This polycarpic perennial plant was a common component ofspecies-rich fen meadows in northwestern Germany until the middle of thiscentury, but today is considered to be regionally endangered. From summer 1996until summer 1998 a bi-factorial field experim......
The birds and the seeds: opportunistic avian nectarivores enhance reproduction in an endemic montane aloe
Plant Ecology - Tập 214 - Trang 35-47 - 2012
Opportunistic bird pollination has become more evident in studies that confirm distinct differences in floral adaptations that attract opportunistic, rather than specialist, bird pollinators. Pollination syndrome studies investigating the effectiveness of different pollinator guilds on reproduction seldom do so by measuring seed viability. We studied pollination in Aloe peglerae, a high altitude e......
Fire severity drives variation in post-fire recruitment and residual seed bank size of Acacia species
Plant Ecology - Tập 219 - Trang 527-537 - 2018
Very high-severity fires are a component of many fire-prone ecosystems, yet are often viewed as detrimental to vegetation. However, species in such systems are likely to have adapted to persist under a fire regime that includes high-severity fires. We examined how fire severity affects post-fire recruitment and residual seed banks of Acacia species and whether severity may affect plant responses t......
Differential herbivory tolerance of dominant and subordinate plant species along gradients of nutrient availability and competition
Plant Ecology - Tập 201 - Trang 611-619 - 2008
We tested whether differences in the herbivory tolerance of plant species is related to their abundance in grassland communities and how herbivory and nutrient availability affect competitive balances among plant species through changes in their tolerance. The experimental approach involved a simulated grazing treatment (clipping) of two competitive grass species (Arrhenatherum elatius and Holcus ......
Are liana communities in linear canopy openings subject to edge effects?
Plant Ecology - - 2022
Studies have revealed a significant increase in liana abundance due to intense fragmentation and consequent edge effects in tropical forests. This study evaluated whether liana communities adjacent to linear canopy openings experience edge effects in the Brazilian Atlantic Forest. For vegetation sampling, 12 sampling units (20 × 50 m) were distributed among forest fragments with four sampling unit......
Ecophysiological differences between male and female plants of Pistacia lentiscus L.
Plant Ecology - Tập 149 - Trang 131-142 - 2000
Previous studies in spatial distribution of male and female shrubs of Pistacia lentiscus have demonstrated that less perturbed areas, older communities with a well developed cover, have male-biased sex ratios, whereas in abandoned old agricultural areas there are no significant differences between the number of male and female plants. In this study, we analyse both sexes in terms of their photosyn......
Phenology and common garden and reciprocal transplant studies of Polymnia canadensis (Asteraceae), a monocarpic species of the North American Temperate Deciduous Forest
Plant Ecology - Tập 161 - Trang 15-39 - 2002
Polymnia canadensis, an herbaceous plant species ofthe North American Temperate Deciduous Forest heretofore reported as beingperennial, is shown to be primarily monocarpic. In common garden experiments,the majority of plants grown from seeds or seedlings collected in Kentucky,Alabama, Virginia, Ohio, and Missouri were monocarpic, but some were dicarpic,tricarpic or polycarpic. Observations in nat......
Different adaptive strategies of three mangrove species to nutrient enrichment
Plant Ecology - Tập 223 - Trang 1093-1102 - 2022
Mangrove species are undergoing environmental changes from nutrient-poor to enrichment due to the large nutrient input. The potential difference in adaptive strategies between the slow- and fast-growing species may lead to great changes in species interaction and ecosystem stability. This study aims to test whether the slow-growing species Aegiceras corniculatum (L.) Blanco and Kandelia obovata Sh......
Effect of fire on hard-coated Cistaceae seed banks and its influence on techniques for quantifying seed banks
Plant Ecology - Tập 144 - Trang 103-114 - 1999
The impact of fire on hard-coated Cistaceae (Halimium ocymoides, Cistus ladanifer, and C. salvifolius) soil seed banks in a Mediterranean 'maquis' shrubland, and its effect on seed germinability were studied. The study also contrasts the effectiveness of two widely used techniques for quantifying seed banks, the seedling emergence and the physical separation methods, in relation to fire. The null ......
Propagule morphology and river characteristics shape secondary water dispersal in tree species
Plant Ecology - Tập 214 - Trang 1257-1272 - 2013
Plant migration is a multi-stage process often driven by multiple dispersal vector systems. Water-mediated dispersal (hydrochory) is known to move propagules of nonaquatic species over long distances, but whether propagule morphology affects floating processes is an open question. We used a multi-species approach to assess the role of propagule morphology in the dispersal of primarily wind-dispers......
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