Exotic plants along roads near La Paz, Bolivia

Murillo, María Del Pilar Fernández; Rico, Adriana; Kindlmann, Pavel

doi:10.1111/wre.12174

Cited by 11 publications

(3 citation statements)

References 25 publications

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“… Features of transportation corridors . Frequent disturbances along roadsides lead to more non‐native plant species than on adjacent habitats (Fernandez‐Murillo, Rico, & Kindlmann, ). Road density (Vila & Pujadas, ; Weber & Li, ), road use type (Sharma & Raghubanshi, ), road age (Cameron & Bayne ), direction of traffic flow (Crawley & Brown, ; von der Lippe & Kowarik, ) and traffic volume (Joly et al., ) also affect plant invasions. Traffic‐related dispersal processes .…”

Section: Introductionmentioning

confidence: 99%

How traffic facilitates population expansion of invasive species along roads: The case of common ragweed in Germany

Lemke

Kowarik

Lippe

2018

Journal of Applied Ecology

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1. Because common ragweed (Ambrosia artemisiifolia L., henceforth Ambrosia) has negative effects on human health, it is a common focus for management, which would benefit from a better understanding of the underlying mechanisms by which the species spreads. Road systems are known to be invasion corridors, but the conduit function of vehicles for the rapid spread of Ambrosia along roads and for population extension along roadside verges has not yet been demonstrated convincingly.2. To quantify the effect of different traffic volumes on the dispersal and population extension of Ambrosia, we used two approaches: First, by combining field experiments along roads with records of the seed rain around single plants, we simulated a combined dispersal kernel that revealed the interactions between primary dispersal and traffic-mediated secondary dispersal. Second, we recorded the seedling recruitment around isolated roadside populations over 2 years to determine how traffic-related parameters affect population extension. 3. The longest traffic-mediated dispersal distances exceeded those of primary dispersal by about one order of magnitude. Traffic volume had a significant positive effect on dispersal distances and on the lateral deposition of seeds on the road verge.4. Seedling recruitment around isolated roadside populations was significantly higher in the driving direction than against, but only at the distance where the major seed rain of traffic-mediated dispersal is to be expected according to the combined dispersal kernel (3-15 m). Synthesis and applications.This study isolates the effects of road traffic from confounding mechanisms (e.g. mowing machinery, propagule pressure from infested fields) on common ragweed (Ambrosia artemisiifolia L.) invasions. Results demonstrate the traffic-mediated dispersal in Ambrosia invasions as a routine and predictable process that facilitates population extension in the direction of traffic along roadsides, depending on traffic volume. This highlights the importance of prioritizing mowing along high use roads and mowing of isolated populations to prevent seed abscission and further spread of common ragweed. K E Y W O R D Scombined dispersal kernel, common ragweed, human-mediated dispersal, invasive species, population dynamics, road ecology, seed dispersal, traffic | 415Journal of Applied Ecology LEMKE Et aL.

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Section: Introductionmentioning

confidence: 99%

How traffic facilitates population expansion of invasive species along roads: The case of common ragweed in Germany

Lemke

Kowarik

Lippe

2018

Journal of Applied Ecology

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“…Among these plant species 24.6% of the non-native species were herbaceous [2]. In the central Andes, the diversity and cover of non-native plants including some herbs have been found increasing in high elevations in past decades [3][4][5]. Moreover, some non-native herbs have expanded quickly through corridors, such as road and trail, in the montane area of Drakensberg Mountains [6].…”

Section: Introductionmentioning

confidence: 99%

Herbaceous Encroachment from Mountain Birch Forests to Alpine Tundra Plant Communities Through Above- and Belowground Competition

Tan

Zong

et al. 2019

Forests

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Alpine plant communities are highly sensitive to global warming. One of the consequences of the warming is encroachment by herbaceous plants from forests at low elevations into alpine ecosystems. In the Changbai Mountains, narrowleaf small reed (Deyeuxia angustifolia (Kom.) Y. L. Chang) from mountain birch forests encroached upward into alpine tundra, gradually replacing native tundra shrubs such as Rhododendron (Rhododendron aureum Georgi). How encroaching plants affect native plant communities is not fully understood. In this study, we analyzed above- and belowground biomass of alpine plant communities at five encroachment levels to investigate how biomass allocation changed at species and community scales. Our research showed that native plants are forced to change their morphology to cope with competition, at both above- and belowground levels, from encroaching plants. We found that (1) R. aureum increased the shoot height and leaf area in order to compete with D. angustifolia; (2) above- and belowground biomass of D. angustifolia increased while above- and belowground biomass of R. aureum decreased with increasing levels of encroachment; and (3) D. angustifolia encroachment reduced the total biomass of alpine tundra. Encroachment by herbaceous plants has a long-term negative impact on the ability of tundra plants to sequester carbon in the alpine tundra of the Changbai Mountains.

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“…Road networks are known to be major invasion corridors [38,15,39], and human-altered habitats, especially those along the roads, are important entry gates that favour the rapid establishment and dispersal of alien plant species [12,20]. Plant invasions connected to road systems have been observed in many parts of the world [31,56,32,15,29,51].…”

Section: Introductionmentioning

confidence: 99%

Dittrichia Graveolens (Asteraceae) – A New Alien Plant Species for Romania

Szatmari¹,

Hurdu²

2021

Contrib.Bot.

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Dittrichia graveolens (L.) W. Greuter, an invasive plant species of Mediterranean origin, is recorded for the first time in Romania. We found the species in October 2020 in two separate locations along the main highway that connects Brașov and Sibiu cities, in Southern Transylvania, central Romania. We present here the first data concerning the species occurrence in the investigated area, its observed habitat, local distribution and accompanying species. We presume that the main vector for the introduction and dispersal of this species in Romania is the high traffic density along the major roads. Dittrichia graveolens has proven its invasive potential in other regions of Europe and North America of similar temperature and precipitation regimes under an overall temperate climate. Consequently, taking into account its fast dispersal, especially in the more favourable habitats for its establishment that exist along the major roads from the lower altitudes and the riparian communities from the western, southern and eastern parts of Romania, we conclude that close monitoring of the species occurrence should be undertaken in order to better assess its full invasive potential in our country and to reduce the risk of impact on natural plant communities.

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Exotic plants along roads near La Paz, Bolivia

Cited by 11 publications

References 25 publications

How traffic facilitates population expansion of invasive species along roads: The case of common ragweed in Germany

How traffic facilitates population expansion of invasive species along roads: The case of common ragweed in Germany

Herbaceous Encroachment from Mountain Birch Forests to Alpine Tundra Plant Communities Through Above- and Belowground Competition

Dittrichia Graveolens (Asteraceae) – A New Alien Plant Species for Romania

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