The response of two arctic tundra plant communities to human trampling disturbance

Monz, Christopher

doi:10.1006/jema.2001.0524

Cited by 70 publications

(62 citation statements)

References 22 publications

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“…This sector of the Ria Formosa is easily utilized by a large number of visitors, particularly during summer, who trample the meadows and indiscriminately harvest clams and molluscs, which may contribute secondarily to the observed differences. Negative effects of human trampling on seagrass cover, shoot density, and rhizome biomass, have been reported by Eckrich & Holmquist (2000) for the seagrass Thalassia testudinum, as well as in other plant communities (Monz 2002).…”

Section: Discussionmentioning

confidence: 96%

Effects of clam harvesting on sexual reproduction of the seagrass Zostera noltii

Alexandre¹,

Santos²,

Serrão³

2005

Mar. Ecol. Prog. Ser.

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The sexual reproduction of Zostera noltii in the Ria Formosa lagoon (southern Portugal) was assessed by quantifying the variation in both flowering effort and evolution of maturation stages during the fertile season. The effects of clam harvesting on the sexual reproduction of Z. noltii were investigated using both descriptive and experimental approaches. Meadows disturbed by clam harvesting were compared with undisturbed meadows in 2 sectors of the lagoon. In both sectors, disturbed meadows showed significantly lower vegetative shoot density and significantly higher reproductive effort. The reproductive effort in the western disturbed meadows was 2-fold higher than in undisturbed meadows, whereas in eastern disturbed meadows it was 4-fold higher. In disturbed meadows, early maturation stages were found until the end of the flowering season and higher seed production was observed. Both the negative effect of clam harvesting on Z. noltii density and the positive effect on its reproductive effort were confirmed by manipulative field experiments. Plots that were experimentally harvested during the fertile season showed significantly lower vegetative shoot density and higher reproductive effort than unharvested plots. Results suggest that Z. noltii responds to clam harvesting disturbance by both increasing its reproductive effort and extending its fertile season.

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Section: Discussionmentioning

confidence: 96%

Effects of clam harvesting on sexual reproduction of the seagrass Zostera noltii

Alexandre¹,

Santos²,

Serrão³

2005

Mar. Ecol. Prog. Ser.

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“…The same conclusion was reached by Sun and Liddle [74], who showed that plant height and morphological structure appear to be strongly associated with resistance to trampling. As a result, some alpine vegetation types may be significantly more resistant than sub-alpine and low-elevation types, due to the larger proportion of turf-forming graminoids [75,76]. However, Bell and Bliss [77] concluded that the other alpine vegetation types are less resistant, so studies show a diverse resistance to trampling amongst species.…”

Section: Discussionmentioning

confidence: 99%

The Impact of Tourist Traffic on the Condition and Cell Structures of Alpine Swards

Kycko

Zagajewski

Lavender³

et al. 2018

Remote Sensing

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This research focuses on the effect of trampling on vegetation in high-mountain ecosystems through the electromagnetic spectrum's interaction with plant pigments, cell structure, water content and other substances that have a direct impact on leaf properties. The aim of the study was to confirm with the use of fluorescence methods of variability in the state of high-mountain vegetation previously measured spectrometrically. The most heavily visited part of the High Tatras in Poland was divided into polygons and, after selecting the dominant species within alpine swards, a detailed analysis of trampled and reference patterns was performed. The Analytical Spectral Devices (ASD) FieldSpec 3/4 were used to acquire high-resolution spectral properties of plants, their fluorescence and the leaf chlorophyll content with the difference between the plant surface temperature (ts), and the air temperature (ta) as well as fraction of Absorbed Photosynthetically Active Radiation (fAPAR) used as reference data. The results show that, along tourist trails, vegetation adapts to trampling with the impact depending on the species. A lower chlorophyll value was confirmed by a decrease in fluorescence, and the cellular structures were degraded in trampled compared to reference species, with a lower leaf reflectance. In addition, at the extreme, trampling can eliminate certain species such as Luzula alpino-pilosa, for which significant changes were noted due to trampling.

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“…Trampling studies conducted in North America and Europe have examined a range of vegetation types, from beech forest (Waltert et al 2002) to arctic tundra plant communities (Monz 2002).…”

Section: Introductionmentioning

confidence: 99%

Recreational trampling negatively impacts vegetation structure of an Australian biodiversity hotspot

et al. 2015

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The response of two arctic tundra plant communities to human trampling disturbance

Cited by 70 publications

References 22 publications

Effects of clam harvesting on sexual reproduction of the seagrass Zostera noltii

Effects of clam harvesting on sexual reproduction of the seagrass Zostera noltii

The Impact of Tourist Traffic on the Condition and Cell Structures of Alpine Swards

Recreational trampling negatively impacts vegetation structure of an Australian biodiversity hotspot

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