Ecological Application of 'Herbchronology': Comparative Stand Age Structure Analyses of the Invasive PlantBunias orientalisL.

Dietz, Hansjörg; Ullmann, I.

doi:10.1006/anbo.1998.0706

Cited by 59 publications

(44 citation statements)

References 20 publications

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“…The main trends of research focused on the analysis of population dynamics and structure (Aule & Brandl 1997), the influence of genet integration on the effectiveness of photosynthesis and biomass allocation (Wang et al 2008), the trade-off between growth and reproduction (Brown & Eckert 2005;Lambrecht-McDowell & Radosevich 2005;Xiao et al 2011), the effectiveness of 450 K. Kostrakiewicz-Giera lt & M. Zając asexeual and sexual propagation in different conditions (Dietz et al 2002;Riis et al 2010) and determination of the genetic variability level (Li et al 2006). Simultaneously it should be pointed out, that perennial nonclonal species have been examined to a lesser degree (e.g., Dietz & Ullmann 1998;van Kleunen & Johnson 2005;Pergl et. al.…”

Section: Introductionmentioning

confidence: 99%

The influence of habitat conditions on the performance of two invasive, annuals — Impatiens glandulifera and Bidens frondosa

Kostrakiewicz-Gierałt

Zając²

2014

Biologia

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The investigations of habitat conditions on the variability of selected population features in the two invasive, annuals with different life-history traits were conducted in the years [2008][2009][2010], in the Polish part of the Carpathian Mountains in communities characterized by the gradual decrease of light availability. The individuals of Impatiens glandulifera were surveyed along roadsides, in willow thickets, as well as inside and along the edges of the riparian forest, whereas the individuals of Bidens frondosa were observed in riverside gravels characterized by a different species composition. Each year, the number and density of individuals (stems) occurring in the particular sites were examined, as well as the height and the fruit production in 30 randomly chosen stems were surveyed. Moreover, the number of seeds per fruit, the diaspore dimensions and the seedling recruitment in laboratory conditions were examined during each season. As the values of height of individuals, number of fruits per stem, number of seeds per fruit, as well as the seedling abundance in some groups were not consistent with the normal distribution and the variances were not homogeneous, the non-parametric Kruskal-Wallis test was used in statistical analyses. Much greater number and density of individuals of Impatiens glandulifera were found in riparian forest, than in willow thickets and along the roadsides. In all sites the number and density of individuals increased steadily in consecutive seasons. The great number and density of Bidens frondosa individuals observed in shady and partly shady sites during the first year of studies raised in the second year and subsequently dramatically decreased in the third season. The lowest number and density of individuals noted in the first season in unshaded site raised substantially in subsequent years. The height of stems, as well as seed and fruit production of both taxa diminished with a decrease of height of neighboring plants. The seed dimensions presented the spatial and temporal variability, whereas the number of seedlings among consecutive years and in successive sites did not differ. The considerable height of the individuals of Impatiens glandulifera, high production of large fruits and seeds in open and dry roadside areas can contribute to more effective ballistic dissemination, while substantial seedling recruitment enables the colonization of new, perhaps more advantageous sites. On the other hand, lower individual height, as well as fruit and seed production and considerable seedling emergence allow the population to last and to gradually extend the area in forest communities. The considerable abundance of the high-statured Bidens frondosa individuals, substantial production of large capitula and achenes contribute to long persistence of populations in open and sun-lit sites. The gradually decrease in the height of the stems, achene number and size observed in partly-shaded and shaded places might allow to long-distance dispersal of seeds by animals, while subst...

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Section: Introductionmentioning

confidence: 99%

The influence of habitat conditions on the performance of two invasive, annuals — Impatiens glandulifera and Bidens frondosa

Kostrakiewicz-Gierałt

Zając²

2014

Biologia

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“…The phenological observations and comparative experimental studies have verified that the growth rings of the forb species are formed annually, and represented true annual growth increments (Dietz and Ullmann, 1997;Dietz and Fattorini, 2002). The patterns of growth rings in forbs may vary in different environmental conditions, and growth rings may be missing or false under the extremely adverse growth conditions (Dietz and Ullmann, 1998;Dietz and Fattorini, 2002;Moloney et al, 2009). In addition, annual rings of forbs can respond rapidly and sensitively to climatic fluctuations (Dietz and von Arx, 2005;Liu and Zhang, 2010), as well as other environmental factors, such as alti-tudinal gradients Olano et al, 2013) and anthropogenic disturbances (Dietz and Fattorini, 2002;Dietz and Schweingruber, 2002).…”

Section: Introductionmentioning

confidence: 79%

Comparative analysis of annual rings of perennial forbs in the Loess Plateau, China

Shi

Wang

et al. 2016

Dendrochronologia

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a b s t r a c tAlthough recent studies have demonstrated that annual growth rings are present among perennial forbs species at high northern latitudes, little is known about whether there are demarcated growth rings of perennial forbs in the Loess Plateau of China where plant growth is strongly limited by dry climate conditions and severe soil erosion. In this study, we collected the main roots of 11 perennial forbs species along the precipitation gradient in the Loess Plateau, and analyzed the growth rings in the secondary root xylem. We found that ten species showed distinct annual growth rings, and the anatomical patterns, including vessel size and density, varied considerably among different families. Our results suggest, for forbs species in the Loess Plateau, that vessel diameter in the root xylem was strongly correlated with growth rate of the forb's roots. Ring widths of the forbs showed a significant declining trend, reflecting the deteriorating signal of growth condition with age. In comparison to other families, forb species of Fabaceae usually have the evidently larger vessels that link directly to higher hydraulic capacity and growth rate. In terms of annual ring width patterns, this study provides an applicable approach to detecting effects of limited climatic conditions and life history strategies on herbaceous vegetation in the Loess Plateau.

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“…Being that annual net primary production in many grasslands is largely a function of annual climatic and site ecological factors (Knapp and Smith 2001), a technique similar to the study of rings in woody species is needed to investigate how yearly ecological and climatic conditions may impact plant growth and production in herbaceous species. Fortunately, certain techniques to monitor past growth may be applied to herbaceous species by using the annual rings of the secondary xylem within the taproot or rhizome of perennial forb species: a technique coined 'Herb-chronology' by Dietz and Ullmann (1998). 50 to 85% of all forb species sampled possess fairly to clearly demarcated growth rings (Dietz and Ullmann 1997).…”

mentioning

confidence: 99%

“…In the majority of cases these growth rings are found to be annual . To date, the most common herb-chronology research is counting rings to assess population age structure (Dietz and Ullmann 1998;Dietz 2002;Pergl et al 2006;Perkins et al 2006). …”

mentioning

confidence: 99%

“…Furthermore, the true potential of using annual rings outside of population level studies, such as indicators of climatic or site-specific ecological factors, have only begun to be explored. Only a few studies in herb-chronology address these issues: For instance, Dietz and Ullmann (1998) unlocked past site history by discovering decreasing annual ring widths of herb species along a gradient of shade within an encroaching shrub. Dietz and von Arx (2005) found synchronous interannual variation in ring widths of perennial forbs across Europe and North America that were a function of El Niño Southern Oscillation (ENSO).…”

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confidence: 99%

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Application of herb chronology: Annual fertilization and climate reveal annual ring signatures within the roots of US tallgrass prairie plants

Dee

Palmer

2016

Botany

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The relatively new field of herbaceous root chronology ("herb-chronology") uses annual rings of secondary xylem in roots of perennial forbs to analyze belowground secondary growth as a function of annual growth environment. By using three tallgrass forb species from long-term experiments within Konza prairie of northeastern Kansas USA, we aim to find the effects of fertilization, growing season temperature, and precipitation on annual secondary growth. For two of the three species, we found annual rings were significantly larger between plots that were fertilized annually with phosphorus or nitrogen + phosphorus in contrast to unfertilized control plots. Rings also had significant variation with climatic variables. We found a consistent negative correlation with early season temperature for each species. However, early growing season precipitation proved to be far less consistent, with positive correlations only found in a few cases between species. Overall, we conclude that annual rings in these select tallgrass prairie species may not carry reliable climatic signatures; rather site-specific ecological factors, such as aboveground competition with neighbors, may be more important for annual ring patterns. In our discussion we propose a framework to help better disentangle the effects of site or climatic factors that may affect herbaceous annual ring variation.

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Ecological Application of 'Herbchronology': Comparative Stand Age Structure Analyses of the Invasive PlantBunias orientalisL.

Cited by 59 publications

References 20 publications

The influence of habitat conditions on the performance of two invasive, annuals — Impatiens glandulifera and Bidens frondosa

The influence of habitat conditions on the performance of two invasive, annuals — Impatiens glandulifera and Bidens frondosa

Comparative analysis of annual rings of perennial forbs in the Loess Plateau, China

Application of herb chronology: Annual fertilization and climate reveal annual ring signatures within the roots of US tallgrass prairie plants

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