scholarly journals ASSESSMENT OF A 5-YEAR-OLD REHABILITATED RIPARIAN FOREST: IS IT ALREADY SUSTAINABLE?

2015 ◽  
Vol 39 (4) ◽  
pp. 603-610
Author(s):  
Vinícius Londe ◽  
Hildeberto Caldas de Sousa ◽  
Alessandra Rodrigues Kozovits
Keyword(s):  
Invasive Species ◽  
Invasive Plants ◽  
Riparian Forest ◽  
Canopy Openness ◽  
Management Actions ◽  
Minas Gerais State ◽  
Hemispherical Photographs ◽  
Exotic Invasive ◽  
Exotic Invasive Plants ◽  
Over Time

ABSTRACTAs important as the establishment of projects of ecological restoration is its assessment post-implementation to know whether the area is becoming self-sustainable or need to be redirected. In this way, this study aimed to know the current situation of a 5-year-old rehabilitated riparian forest,inserted in an anthropogenic impacted region,at the das Velhas River, Minas Gerais State, studying the canopy openness and recruitment of seedlings as plant indicators. 15 plots were allocated in the forest, where hemispherical photographs were taken to analyze the canopy openness and evaluate all seedlings from 0.30 m to 1.30 m height.Canopy openness ranged from 23.7% to 38.8% between seasons and only 192 seedlings were found,from 13 species, five of them exotic and aggressive. Although canopy openness was low, it seems that lateral penetration of light has been favoring the development and dominancy of plants from invasive species, whereas few native ones have been recruited. The exotic/invasive plants may compromise the success of restoration mainly by competition with native planted species. The outcomes evidenced an unsustainability of the riparian forest and the requirement of some management actions to control exotic and invasive plants and ensure the preservation of the area and its ecological roles over time.

Vegetation dynamics in declining eastern hemlock stands: 9 years of forest response to hemlock woolly adelgid infestation

2006 ◽  
Vol 36 (6) ◽  
pp. 1435-1450 ◽  
Author(s):  
Anne K Eschtruth ◽  
Natalie L Cleavitt ◽  
John J Battles ◽  
Richard A Evans ◽  
Timothy J Fahey
Keyword(s):  
Invasive Plants ◽  
Light Availability ◽  
Hemlock Woolly Adelgid ◽  
Adelges Tsugae ◽  
Eastern Hemlock ◽  
Percent Cover ◽  
Eastern United States ◽  
Transmitted Radiation ◽  
Exotic Invasive ◽  
Exotic Invasive Plants

Hemlock woolly adelgid (HWA; Adelges tsugae Annand) infestations have resulted in the continuing decline of eastern hemlock (Tsuga canadensis (L.) Carrière) throughout much of the eastern United States. In 1994 and 2003, we quantified the vegetation composition and structure of two hemlock ravines in the Delaware Water Gap National Recreation Area. This is the first study to use pre-adelgid disturbance data, annual monitoring of infestation severity, and annual records of hemlock health to assess forest response to HWA infestation. In 2003, 25% of monitored hemlock trees were either dead or in severe decline. Measures of hemlock decline (crown vigor, transparency, density, and dieback) were correlated with HWA infestation severity and changes in light availability over the study period. Average percent total transmitted radiation more than doubled at these sites from 5.0% in 1994 to 11.7% in 2003. The total percent cover of vascular plants increased from 3.1% in 1994 to 11.3% in 2003. Species richness increased significantly, and more species were gained (53) than lost (19) from both ravine floras over the 9-year study period. Though exotic invasive plants were absent from these ravines in 1994, our 2003 resurvey found invasive plants in 35% of the permanent vegetation plots.

Native and exotic invasive plants have fundamentally similar carbon capture strategies

2010 ◽  
Vol 98 (1) ◽  
pp. 28-42 ◽  
Author(s):  
Michelle R. Leishman ◽  
Vivien P. Thomson ◽  
Julia Cooke
Keyword(s):  
Invasive Plants ◽  
Carbon Capture ◽  
Exotic Invasive ◽  
Exotic Invasive Plants

scholarly journals Advances in root foraging behavior of exotic invasive plants

2020 ◽  
Vol 28 (6) ◽  
pp. 727-733
Author(s):  
Xue Han ◽  
Jinquan Su ◽  
Nana Yao ◽  
Baoming Chen ◽  
Keyword(s):  
Foraging Behavior ◽  
Invasive Plants ◽  
Root Foraging ◽  
Exotic Invasive ◽  
Exotic Invasive Plants

scholarly journals Review on Allelopathy of Exotic Invasive Plants

2011 ◽  
Vol 18 ◽  
pp. 240-246 ◽  
Author(s):  
Wang Chengxu ◽  
Zhu Mingxing ◽  
Chen Xuhui ◽  
Qu Bo
Keyword(s):  
Invasive Plants ◽  
Exotic Invasive ◽  
Exotic Invasive Plants

scholarly journals Diet breadth and exploitation of exotic plants shift the core microbiome of tropical herbivorous beetles

2018 ◽  
Author(s):  
Chelsea L. Blankenchip ◽  
Dana E. Michels ◽  
H. Elizabeth Braker ◽  
Shana K. Goffredi
Keyword(s):  
Invasive Plants ◽  
Diet Breadth ◽  
Core Microbiome ◽  
The Core ◽  
Plant Associations ◽  
Niche Adaptation ◽  
Microbiome Diversity ◽  
Exotic Invasive ◽  
Exotic Invasive Plants ◽  
Specialist Species

The beetle genus Cephaloleia has evolved in association with tropical ginger plants and for many species their specific host plant associations are known. Here we show that the core microbiome of six closely-related Costa Rican Cephaloleia species comprises only 8 bacterial groups, including members of the Acinetobacter, Enterobacteriacea, Pseudomonas, Lactococcus, and Comamonas. The Acinetobacter and Enterobacteriacea together accounted for 35% of the total average 16S rRNA ribotypes recovered from all specimens. Further, microbiome diversity and community structure was significantly linked to beetle diet breadth, between those foraging on <2 plant types (specialists) versus 9+ plants (generalists). Moraxellaceae, Enterobacteriaceae, and Pseudomonadaceae were highly prevalent in specialist species, and also present in eggs, while Rickettsiaceae associated exclusively with generalist beetles. Bacteria isolated from Cephaloleia digestive systems had complementary capabilities and suggested a possible beneficial role in both digestion of plant-based compounds, including xylose, mannitol, and pectin, and possible detoxification, via lipases. Cephaloleia species are currently expanding their diets to include exotic invasive plants, yet it is unknown whether their microbial community plays a role in this transition. In this study, colonization of invasive plants was correlated with a dysbiosis of the microbiome, suggesting a possible relationship between gut bacteria and niche adaptation.

scholarly journals Diet breadth and exploitation of exotic plants shift the core microbiome of Cephaloleia, a group of tropical herbivorous beetles

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4793 ◽  
Author(s):  
Chelsea L. Blankenchip ◽  
Dana E. Michels ◽  
H. Elizabeth Braker ◽  
Shana K. Goffredi
Keyword(s):  
Invasive Plants ◽  
Diet Breadth ◽  
Core Microbiome ◽  
The Core ◽  
Plant Associations ◽  
Niche Adaptation ◽  
Microbiome Diversity ◽  
Exotic Invasive ◽  
Exotic Invasive Plants ◽  
Specialist Species

The beetle genus Cephaloleia has evolved in association with tropical ginger plants and for many species their specific host plant associations are known. Here we show that the core microbiome of six closely related Costa Rican Cephaloleia species comprises only eight bacterial groups, including members of the Acinetobacter, Enterobacteriacea, Pseudomonas, Lactococcus, and Comamonas. The Acinetobacter and Enterobacteriacea together accounted for 35% of the total average 16S rRNA ribotypes recovered from all specimens. Further, microbiome diversity and community structure was significantly linked to beetle diet breadth, between those foraging on less than two plant types (specialists) versus over nine plant types (generalists). Moraxellaceae, Enterobacteriaceae, and Pseudomonadaceae were highly prevalent in specialist species, and also present in eggs, while Rickettsiaceae associated exclusively with generalist beetles. Bacteria isolated from Cephaloleia digestive systems had distinct capabilities and suggested a possible beneficial role in both digestion of plant-based compounds, including xylose, mannitol, and pectin, and possible detoxification, via lipases. Cephaloleia species are currently expanding their diets to include exotic invasive plants, yet it is unknown whether their microbial community plays a role in this transition. In this study, colonization of invasive plants was correlated with a dysbiosis of the microbiome, suggesting a possible relationship between gut bacteria and niche adaptation.

scholarly journals Increased Topsoil Mineral Nutrient Concentrations Under exotic invasive plants in Belgium

2005 ◽  
Vol 275 (1-2) ◽  
pp. 169-179 ◽  
Author(s):  
Sonia Vanderhoeven ◽  
Nicolas Dassonville ◽  
Pierre Meerts
Keyword(s):  
Invasive Plants ◽  
Mineral Nutrient ◽  
Nutrient Concentrations ◽  
Exotic Invasive ◽  
Exotic Invasive Plants
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