Vegetation change: a reunifying concept in plant ecology

Davis, Mark A.; Pergl, Jan; Truscott, Anne; Kollmann, Johannes; Bakker, Jan P.; Domènech, Roser; Prach, Karel; Prieur‐Richard, Anne‐Hélène; Veeneklaas, Roos M.; Pyšek, Petr; Moral, Roger del; Hobbs, Richard J.; Collins, Scott L.; Pickett, Steward T. A.; Reich, Peter B.

doi:10.1016/j.ppees.2004.11.001

Cited by 56 publications

(45 citation statements)

References 16 publications

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“…It is well accepted that interdisciplinary approaches can substantially enhance the ability of ecologists to strengthen the conceptual pillars of invasion ecology (Davis et al 2005;Richardson and Pysek 2006). Our results challenge the idea that forests are not immune to invasion, and join a growing body of evidence demonstrating that undisturbed, closed-canopy forests, especially the late-successional forests, are highly resistant to plant invasions (Cavers and Harper 1967;Crawley 1987;Rejmánek 1989;Von Holle et al 2003;Domenech and Vila 2006), at least in the case of M. micrantha.…”

Section: Discussionsupporting

confidence: 64%

Inhibition of an invasive plant (Mikania micrantha H.B.K.) by soils of three different forests in lower subtropical China

et al. 2010

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Biological invasion represents one of the most serious threats to biodiversity, and invasion ecology research has become one of the central issues of contemporary environmental science. However, the relative role of soil development as correlated with succession in influencing variation in invasion resistance has seldom been examined. We hypothesized that the invasion potential of exotic plants depends on soil conditions. In this study, we explored variation among soils of three forest types in their resistance to invasion by Mikania micrantha H.B.K. in lower subtropical China; this species is one of the top ten most invasive weeds in the world. In model systems of soils from different forests, M. micrantha performed worst on undisturbed late-successional stage forest (monsoon evergreen broadleaf forest, MEBF) soils and did not appear to take advantage of abundant soil nutrients. These results could reflect that a potential inhibitory effect was driven by MEBF soil. Plant litter is an important component of soils, litter bioassay and addition experiments demonstrated native plant species from different forests differentially confer invasion resistance and affect the performance of exotic plants. Naturally, other factors such as the relative abundances of nutrients, microbial feedbacks, could have contributed to these results as well. Our results challenge the notion that forests are not immune to invasion and suggest that maintaining late-successional plant communities in lower subtropical China, which could be related to increased productivity and stability, should be a primary objective of land managers.

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Section: Discussionsupporting

confidence: 64%

Inhibition of an invasive plant (Mikania micrantha H.B.K.) by soils of three different forests in lower subtropical China

et al. 2010

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“…; Keddy 2000), sometimes preventing the establishment of alien species (see cluster 1; cfr. Davis et al 2005). The presence and spread of the latter, which were found to be very competitive in some helophytic coenoses in the study area (see Paspalum distichum), is also favoured by eutrophication, as well as by the low altitude of the study area (Pyšek et al 2002), the presence of numerous channels and the lack of adjacent nuclei of woods (Houlahan et al 2006).…”

Section: Polygonetum Natantismentioning

confidence: 88%

Vegetation analysis on wetlands in a Tuscan agricultural landscape (central Italy)

2010

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Abstract:The plant communities on the wetlands of an agricultural landscape in central Italy were studied. Indicator species, dominant life forms, alien species cover and prevailing habitat conditions (using Ellenberg indicator values) were shown to characterize the four groups that emerged from a classification analysis. 31 vegetation units were documented by 98 original phytosociological relevés and a floristic, synecological and distributional description was presented with syntaxonomic notes for each unit. A new association, Rorippo amphibiae-Potentilletum reptantis, was described. The high phytocoenotic diversity, the 7 coenoses belonging to habitat of Community or regional interest and the higher risks affecting these wetlands in an anthropic countryside (eutrophication, invasion of alien species, human modifications of the landscape) underline the fact that these wetlands are of high conservation value and the goal of protecting this very important environment.

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“…Many native riparian trees and shrubs have a lower tolerance for water stress (Pockman and Sperry 2000;, and therefore the ability of Tamarix to maintain constant gas exchange and growth through periods of greatly reduced water availability may contribute to the proliferation of these species in the western United States. Assessing the sensitivity of physiological responses to changes in water-resource availability is critical for predicting the population and community responses to changing environments and for determining the trajectory of vegetation change under altered climatic conditions (Dukes and Mooney 1999;Davis et al 2005;Newman et al 2006). …”

Section: Introductionmentioning

confidence: 99%

Patterns of Tamarix water use during a record drought

et al. 2009

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During a record drought (2006) in southwest Kansas, USA, we assessed groundwater dynamics in a shallow, unconfined aquifer, along with plant water sources and physiological responses of the invasive riparian shrub Tamarix ramosissima. In early May, diel water table fluctuations indicated evapotranspirative consumption of groundwater by vegetation. During the summer drought, the water table elevation dropped past the lowest position previously recorded. Concurrent with this drop, water table fluctuations abruptly diminished at all wells at which they had previously been observed despite increasing evapotranspirative demand. Following reductions in groundwater fluctuations, volumetric water content declined corresponding to the well-specific depths of the capillary fringe in early May, suggesting a switch from primary dependence on groundwater to vadose-zone water. In at least one well, the fluctuations appear to re-intensify in August, suggesting increased groundwater uptake by Tamarix or other non-senesced species from a deeper water table later in the growing season. Our data suggest that Tamarix can rapidly shift water sources in response to declines in the water table. The use of multiple water sources by Tamarix minimized leaf-level water stress during drought periods. This study illustrates the importance of the previous hydrologic conditions experienced by site vegetation for controlling root establishment at depth and demonstrates the utility of data from high-frequency hydrologic monitoring in the interpretation of plant water sources using isotopic methods.

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Vegetation change: a reunifying concept in plant ecology

Cited by 56 publications

References 16 publications

Inhibition of an invasive plant (Mikania micrantha H.B.K.) by soils of three different forests in lower subtropical China

Inhibition of an invasive plant (Mikania micrantha H.B.K.) by soils of three different forests in lower subtropical China

Vegetation analysis on wetlands in a Tuscan agricultural landscape (central Italy)

Patterns of Tamarix water use during a record drought

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