Impacts of alien plant invasion on native plant communities are mediated by functional identity of resident species, not resource availability

Oikos ◽  
2014 ◽  
Vol 124 (3) ◽  
pp. 298-306 ◽  
Author(s):  
Ben Gooden ◽  
Kris French
Keyword(s):  
Plant Communities ◽  
Resource Availability ◽  
Plant Invasion ◽  
Functional Identity ◽  
Native Plant ◽  
Resident Species ◽  
Alien Plant

Impact threshold for an alien plant invader, Lantana camara L., on native plant communities

2009 ◽  
Vol 142 (11) ◽  
pp. 2631-2641 ◽  
Author(s):  
Ben Gooden ◽  
Kris French ◽  
Peter J. Turner ◽  
Paul O. Downey
Keyword(s):  
Plant Communities ◽  
Lantana Camara ◽  
Native Plant ◽  
Alien Plant

scholarly journals Plant communities along the Eerste River, Western Cape, South Africa: Community descriptions and implications for restoration

Koedoe ◽  
2013 ◽  
Vol 55 (1) ◽  
Author(s):  
Clifton S. Meek ◽  
Dave M. Richardson ◽  
Ladislav Mucina
Keyword(s):  
Ecosystem Services ◽  
Plant Species ◽  
Plant Communities ◽  
Riparian Vegetation ◽  
Riparian Zone ◽  
Cape Floristic Region ◽  
Conservation Value ◽  
Western Cape ◽  
Native Plant ◽  
Alien Plant

Riparian plant communities fulfil many functions, including the provision of corridors linking protected areas and other zones of high conservation value. These habitats across much of South Africa’s Cape Floristic Region, especially in the lowlands, have been heavily impacted and degraded by human activities. There is increasing interest in the restoration of degraded riparian zones and the ecosystem services they provide to enhance the conservation value of landscapes. Previous studies of riparian vegetation in the Cape Floristic Region focused on pristine headwater systems, and little is known about human-impacted communities that make up most of the riparian vegetation in downstream areas. More information is needed on the composition of these plant communities to establish a baseline for management intervention. The riparian zone of the Eerste River in South Africa’s Western Cape province provides a good opportunity to study the features of riparian vegetation along the entire gradient, from pristine vegetation in a protected area through different levels of human-mediated degradation. Riparian vegetation was surveyed in 150 plots along the entire length of the Eerste River (ca. 40 km). Data were analysed using the vegetation classification and analysis software package JUICE. Final groupings were plotted onto a two-dimensional detrended correspondence analysis plane to check the position of the communities in the reduced multidimensional space. Ten distinct plant communities were identified, including several novel communities dominated by alien plant species. Descriptions of each plant community are presented. Diagnostic, constant and dominant species are listed and the major structural and ecological characteristics of each community are described.Conservation implications: Major changes to hydrological and soil properties, nutrient dynamics and disturbance regimes and plant species composition along sections of the riparian zone mean that restoration of many of these habitats to their historic condition is not feasible. However, several native plant species that provide key ecosystem services persist in and adjacent to transformed communities, offering substantial opportunities for restoration to achieve certain goals.

scholarly journals Soil fauna may buffer the negative effects of drought on alien plant invasion

2021 ◽  
Author(s):  
Huifei Jin ◽  
Liang Chang ◽  
Mark van Kleunen ◽  
Yanjie Liu
Keyword(s):  
Biomass Production ◽  
Plant Invasion ◽  
Soil Fauna ◽  
Plant Invasions ◽  
Invasion Success ◽  
Native Plant ◽  
Native Community ◽  
Alien Plant ◽  
Grassland Species ◽  
Effects Of Drought

Assessing how climate change affects the potential invasion risk of alien plants has garnered considerable interest in ecology. Although many studies have tested the direct effects of drought on alien plant invasion, less is known about how drought affects alien plant invasion indirectly via other groups of organisms such as soil fauna. To test for such indirect effects, we grew single plant of nine naturalized alien target species in pot mesocosms with a native community of five native grassland species under four combinations of two drought (well-watered vs drought) and two soil-fauna (with vs without) treatments. We found that drought decreased the absolute and the relative biomass production of the alien target plants, and thus reduced their invasion success in the native community. Inoculation with a soil fauna increased the biomass of the native plant community and thereby decreased the relative biomass production of the alien species. The increased invasion resistance due to soil fauna tended (p = 0.09) to be stronger for plants growing under well-watered conditions than under drought. Our multispecies experiment shows for the first time that soil fauna might help native resident communities to resist alien plant invasions, but that this effect might be diminished by drought.

scholarly journals Effects of Environmental Factors and Alien Plant Invasion on Native Floral Diversity in Mt. Manunggal, Cebu Island, Philippines

2018 ◽  
Vol 13 (3) ◽  
pp. 390-402
Author(s):  
JAKE JOSHUA CHI GARCES ◽  
MARY JOYCE LAPA FLORES
Keyword(s):  
Environmental Factors ◽  
Plant Invasion ◽  
Environmental Parameters ◽  
Anthropogenic Disturbances ◽  
The Philippines ◽  
Alien Plants ◽  
Native Plant ◽  
Plant Abundance ◽  
Alien Plant ◽  
Floral Diversity

The status of native floral diversity in Mt. Manunggal, Cebu Island, the Philippines in relation to environmental factors and alien plant invasion has not been recorded and published. To assess factors influencing native plant communities in Mt. Manunggal, a vegetation survey of native and alien plants, as well as selected environmental variables at two sites (Site 1- invaded plot; Site 2- adjacent uninvaded plot) were measured, and anthropogenic disturbances observed using a t-test, regression analysis, and Pearson correlation. For each site, selected environmental parameters, as well as native and alien plant abundance and diversity, were determined last October-November, 2016. There was also a characterization of sites with respect to anthropogenic disturbances. Altitude (t= -14.11, p=0.000), soil temperature (t=2.68, p=0.014), and light intensity (t = -2.61; p=0.016) significantly differed between study sites due to the complex topography and geology of Mt. Manunggal, the variation in floral cover, and degree of anthropogenic activities. Among all environmental factors at both sites, altitude was highly positively correlated to alien plant abundance (r=0.709;p=0.000) at Site 1 while native plant abundance at Site 2 was negatively correlated with soil pH (r=-0.579;p=0.003).There was an apparent domination of alien plants in terms of species richness and abundance at both sites and this could have significantly affected native plant abundance. The strong correlation of environmental parameters to alien plant invasion could favor the continued dominance of alien plant species, resulting in a further decrease of native species.

Role of Horses as Potential Vectors of Non-Native Plant Invasion: An Overview

2020 ◽  
Vol 40 (3) ◽  
Author(s):  
Lauren D. Quinn ◽  
Adda Quinn ◽  
Mietek Kolipinski ◽  
Bonnie Davis ◽  
Connie Berto ◽  
...  
Keyword(s):  
Plant Invasion ◽  
Native Plant

scholarly journals Nematode community responses to range-expanding and native plant communities in original and new range soils

2018 ◽  
Vol 8 (20) ◽  
pp. 10288-10297 ◽  
Author(s):  
Rutger A. Wilschut ◽  
Olga Kostenko ◽  
Kadri Koorem ◽  
Wim H. van der Putten
Keyword(s):  
Plant Communities ◽  
Nematode Community ◽  
Native Plant ◽  
Community Responses

Allelopathic invasive tree (Rhamnus cathartica) alters native plant communities

Plant Ecology ◽  
2017 ◽  
Vol 218 (10) ◽  
pp. 1233-1241 ◽  
Author(s):  
R. J. Warren ◽  
Adam Labatore ◽  
Matt Candeias
Keyword(s):  
Plant Communities ◽  
Native Plant ◽  
Rhamnus Cathartica ◽  
Invasive Tree

scholarly journals Research progress and prospect on the impacts of resource pulses on alien plant invasion

2021 ◽  
Vol 45 (6) ◽  
pp. 573-582
Author(s):  
Wen-Chao QIN ◽  
Zhi-Bin TAO ◽  
Yong-Jian WANG ◽  
Yan-Jie LIU ◽  
Wei HUANG ◽  
...  
Keyword(s):  
Plant Invasion ◽  
Research Progress ◽  
Alien Plant ◽  
Resource Pulses

scholarly journals Connections of alien birds species with alien plants of parks and botanical gardens

2021 ◽  
Vol 15 (1) ◽  
pp. 79-92
Author(s):  
T. V. Shupova ◽  
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Plant Communities ◽  
Bird Species ◽  
Bird Communities ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Botanical Gardens ◽  
Number Of Species ◽  
Forest Parks

Introduction. In urban conditions, alien species of biota have become an integral part of the cultural landscape. Today, an overall assessment of the influence of alien species on the functioning of ecosystems of their secondary range as is relevant. Such an assessment requires knowledge of the connections formed by alien species in the secondary habitat. The purpose of the study was to find the connections of alien bird species with alien plant species in the parks and botanical gardens of Kyiv. Methods. Assessment was carried out in 10 forest parks, 3 botanical gardens, and 14 urban parks. In parks and botanical gardens, there is a wide range of plants alien to Kyiv Region, in contrast to forest parks. The number and distribution of birds were determined using the method of transect counts. The total area under study was about 370 hectares. Principal Component Analysis of the characteristics of habitats on which the number of alien birds may depend has been carried out. In the research, α-diversity indices of bird communities; number of people (individuals/km); number of pets (individuals/km); park’s area (ha); part of the territory; under the trees (%); part of alien species on plants communities (%) were analyzed. Results. Parus major, Turdus merula, Erithacus rubecula, Fringilla сoelebs dominate in all communities. Columba palumbus, Ficedula albicollis, Turdus pilaris, Columba livia, Apus apus, Sturnus vulgaris, Passer domesticus sometimes dominate in bird communities in parks and botanical gardens. There are no alien species in forest parks. 4 alien species nest in parks and botanical gardens: Streptopelia decaocto, Dendrocopos syriacus, Phoenicurus ochruros, Serinus serinus (from the last century). Phylloscopus trochiloides was observed for the first time. Nesting of Ph. trochiloides was not confirmed. Alien birds are not evenly distributed (0–3 species). Nest density is low: S. decaocto 0.013±0.01–0.021±0.01, D. syriacus 0.031±0.01–0.043±0.04, Ph. ochruros 0–0.034±0.02, S. serinus 0.013±0.01–0.017±0.01. We assume that alien bird species is an element that replaces the species that were eliminated from the community. Their nesting in forest parks is an indicator of a disruption of the functioning of the forest ecosystem as a result of anthropogenic transformation of the forest. The presence of alien species of birds in modern parks and botanical gardens is normal. Their biotopes were created on the sites of destroyed landscapes and with using alien plant species. Conclusion. In parks and botanical gardens, a specific structure of the plant community has developed due to the introduction of alien plant species, with a tree height of 3–5 m. As a consequence, alien birds find nesting stations in communities of nesting birds, which were not occupied by native species due to the absence of many species of tree canopy nesters and ground nesters birds. Alien species of birds also get access to vacant food resources. Alien birds use vacant resources. It was found that the area of parks has the most profound positive impact on the number of species of alien birds (+0.517), as well as the ratio of alien birds (+0.227). Other important correlations observed were the following: the number of species of alien birds in the bird communities – a part of alien species in plant communities (+0.084), the ratio of alien birds – part of alien species in plant communities (+0.041). The strongest negative connection is as follows: the number of species of alien birds in the bird communities – the number of pets (-0.213), the ratio of alien birds – the number of pets (-0.384).

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