Determination Of Priority Species For Invasive Plant Management In Wetlands Of Wasur National Park Merauke

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Sarah Yuliana
Keyword(s):  
Exotic Species ◽  
Invasive Plants ◽  
National Park ◽  
Invasive Plant ◽  
Imperata Cylindrica ◽  
Plant Management ◽  
Conservation Area ◽  
Invasive Plant Management ◽  
Melaleuca Cajuputi ◽  
Priority Species

<p>Threats on biodiversity in a conservation area can originated from outside or inside the area.  One of the outsiders that rarely noticeable is invasion of exotic species, which usually alters the stability of natural processes within the area. Wasur National Park has some wetland ecosystems that overcome the issues of deterioration in function and benefits due to exotic plant invasion in recent days. This research was carried out to determine priority species that need immediately managements in Wasur National Park.  Field survey and inventory followed by scoring and evaluation methods using Weed Risk Assessment by Exotic Species Ranking System were taken in this research to obtain the priority species. The scoring and ranking steps placed encountered invasive plant species into four categories of management priority based on Significance of Impact and the Feasibility of Control. The result identified 49 species of invasive plants from three wetlands in Wasur National Park, which 75% (or 36 species) of them are species of Priority 3 (lesser threat and easy to control), 4 species of Priority 4 (lesser threat – hard to control) and at least 9 species of Priority 2 (serious threat-hard to control).  Priority 2 species consist of <em>Carex</em> sp., <em>Eleocharis indica</em> (Lour.) Druce, <em>Hanguana malayana</em> (Jack.) Merr., <em>Imperata cylindrica</em> (L.) Beauv., <em>Ludwigia oktovalvis</em> (Jacq.) Raven, <em>Melaleuca cajuputi</em>  Powell, <em>M. leucadendron</em> (Linn.), <em>Paspalum</em> <em>conjugatum</em> P. J. Bergius, and <em>Stachytareta jamaicensis</em> (L.).  These invasive plants need to be managed properly and thoroughly further.</p>

Influence of Neighboring Vegetation Height on Seed Dispersal: Implications for Invasive Plant Management

Weed Science ◽  
2007 ◽  
Vol 55 (6) ◽  
pp. 626-630 ◽  
Author(s):  
Kirk W. Davies ◽  
Roger L. Sheley
Keyword(s):  
Seed Dispersal ◽  
Invasive Plants ◽  
Invasive Plant ◽  
Cost Effective ◽  
Plant Management ◽  
Wind Dispersal ◽  
Invasive Plant Management ◽  
Wind Speeds ◽  
Plant Seeds ◽  
Vegetation Height

Controlling invasive plant infestations is very costly and often unsuccessful. Preventing invasions is more cost-effective than controlling invasive plants after they are established. Because prevention guidelines do not suggest any tools or methods to limit wind dispersal of invasive plant seeds, we investigated the influence of neighboring vegetation height on seed dispersal of a wind-dispersed (yellow salsify) and nonwind-dispersed (medusahead) species. To examine the influence of neighboring vegetation height on dispersal, seeds of both species were released in front of an artificial stand of desert wheatgrass in a modified wind tunnel. Treatments were a complete factorial design with two species, four vegetation heights (10, 30, 40, and 60 cm), three wind speeds (3, 5.5, and 10 km h−1), and three release distances from the neighboring vegetation (0, 15, and 30 cm). The ability of medusahead and yellow salsify seeds to disperse was influenced by the height of neighboring vegetation. Increasing height of neighboring vegetation decreased the number of yellow salsify seeds dispersing across neighboring vegetation. The greatest percentage of medusahead seeds dispersed across the neighboring vegetation was at the shortest height. Based on these results, we suggest that maintaining or promoting tall vegetation neighboring invasive plant infestations may reduce wind dispersal of seeds. More research is needed to investigate the influence of varying heights, densities, structural attributes, and composition of vegetation neighboring infestations and the dispersal of invasive plants.

scholarly journals Seven decades of institutional learning: managing alien plant invasions in the Kruger National Park, South Africa

Oryx ◽  
2007 ◽  
Vol 41 (2) ◽  
pp. 160-167 ◽  
Author(s):  
Llewellyn C. Foxcroft ◽  
Stefanie Freitag-Ronaldson
Keyword(s):  
South Africa ◽  
National Park ◽  
Invasive Plant ◽  
Current Control ◽  
Kruger National Park ◽  
Plant Management ◽  
Plant Interactions ◽  
Alien Plant ◽  
Invasive Plant Management

AbstractLong-term ecological and economic sustainability will ultimately determine the outcome of any conservation management programme. Invasive alien plants, first recorded in the Kruger National Park, South Africa, in 1937, are now recognized as one of the greatest threats to the biodiversity of this Park. Such plants have been managed in the Park since 1956, with control advancing mainly through a process of trial and error. Refinement of invasive plant management strategies has resulted in an understanding of the target plants' biology and ecology, herbicide use and herbicide-plant interactions, as well as the plant-insect interactions of biological control. Careful integration of different control methods has proved essential to ensure the most appropriate use of techniques to deliver the best possible results from the resources available and achieve long-term sustainability. We outline the development of control efforts and current control programmes and the process of their incorporation into the institutional memory of Kruger National Park over the last 7 decades.

Restoration Ecology and Invasive Plants in the Semiarid West

2008 ◽  
Vol 1 (4) ◽  
pp. 399-413 ◽  
Author(s):  
Cynthia S. Brown ◽  
Val J. Anderson ◽  
Victor P. Claassen ◽  
Mark E. Stannard ◽  
Linda M. Wilson ◽  
...  
Keyword(s):  
Invasive Species ◽  
Invasive Plants ◽  
Restoration Ecology ◽  
Invasive Plant ◽  
Abiotic Factors ◽  
Plant Management ◽  
Ecosystem Development ◽  
Plant Materials ◽  
Invasive Plant Management ◽  
Complex Interactions

AbstractInvasive plants are a common problem in the management and restoration of degraded lands in the semiarid western United States, but are often not the primary focus of restoration ecologists. Likewise, restoring native vegetation has not been a major concern of weed scientists. But trends in the literature demonstrate increasing overlap of these fields, and greater collaboration between them can lead to improved efficacy of restoration efforts. Succession and ecosystem development are the products of complex interactions of abiotic and biotic factors. Our greatest restoration and invasive plant management successes should result when we take advantage of these natural processes. Recent shifts in management objectives have generated approaches to directing plant community development that utilize species that are strong competitors with invasive species as a bridge to the establishment of native perennial vegetation. Soil water and nutrient characteristics and their interactions can affect desired and undesired plant species differentially and may be manipulated to favor establishment and persistence of desired perennial plant communities. Selection of appropriate plant materials is also essential. Species assemblages that suppress or exclude invaders and competitive plant materials that are well adapted to restoration site conditions are important keys to success. We provide guidelines for restoration based on the fundamental ecological principles underlying succession. Knowledge of the complex interactions among the biotic and abiotic factors that affect successional processes and ecosystem development, and increased collaboration between weed scientists and restoration ecologists hold promise for improving restoration success and invasive species management.

Prioritizing Invasive Plant Management with Multi-Criteria Decision Analysis

2013 ◽  
Vol 6 (3) ◽  
pp. 339-351 ◽  
Author(s):  
Matthew G. Hohmann ◽  
Michael G. Just ◽  
Peter J. Frank ◽  
Wade A. Wall ◽  
Janet B. Gray
Keyword(s):  
Decision Making ◽  
Sensitivity Analysis ◽  
Invasive Plants ◽  
Invasive Plant ◽  
Sensitivity Analyses ◽  
Plant Management ◽  
Decision Making Process ◽  
Invasive Plant Management ◽  
Spatial Sensitivity ◽  
Management Area

AbstractPrioritizing management of invasive plants is important for large land management entities, such as federal and state public land stewards, because management resources are limited and multiple land uses and management objectives are differentially impacted. Management decisions also have important consequences for the likelihood of success and ultimate cost of control efforts. We applied multi-criteria decision analysis methods in a geographic information system using natural resource and land use data from Fort Bragg, North Carolina. Landscape-scale prioritization was based on a hierarchical model designed to increase invasive plant management efficiencies and reduce the risk of impacts to key installation management goals, such as training-land management and protected species conservation. We also applied spatial sensitivity analyses to evaluate the robustness of the prioritization to perturbations of the model weights, which were used to describe the relative importance of different elements of the hierarchical model. Based on stakeholders' need for confidence in making management investments, we incorporated the results of the sensitivity analysis into the decision-making process. We identified high-priority sites that were minimally affected by the weight perturbations as being suitable for up-front management and evaluated how adopting this strategy affected management area, locations, and costs. We found that incorporating the results of the sensitivity analysis led to a reduced management area, different target locations, and lower costs for an equal area managed. Finally, we confirmed the distinctiveness of the approach by comparing this same subset of prioritized sites with locations representing species-centric strategies for three invasive plants and their aggregate distribution. By supplying pragmatic information about the localized effects of weighting uncertainty, spatial sensitivity analyses enhanced the invasive plant management decision-making process and increased stakeholder confidence.

scholarly journals Invasive Plants with Native Lookalikes: How Mistaken Identities Can Lead to More Significant Plant Invasions and Delay Management

2021 ◽  
pp. 1-10
Author(s):  
S. Christopher Marble ◽  
Stephen H. Brown
Keyword(s):  
Invasive Plants ◽  
Native Species ◽  
Invasive Plant ◽  
Population Expansion ◽  
Plant Invasions ◽  
Plant Management ◽  
Delayed Response ◽  
Native Plant ◽  
Success Rates ◽  
Invasive Plant Management

Plant invasions pose a serious threat to biodiversity, agricultural production, and land value throughout the world. Due to Florida’s unique climate, population expansion, expansive coastline, and number of seaports, the state is especially vulnerable to non-native plant naturalization and spread. Invasive plant management programs were shown to have higher success rates with fewer resources when invasives were managed soon after non-native plants were observed. However, some newly emerging invasive plants may go undetected due to their resemblance with native species or other invasive plants. The objective of this review is to highlight a few key invasive plants in Florida that have native lookalikes. While morphological differences are discussed, the primary goal is to discuss management implications of misidentification and delayed response times, as well as the need for plant identification guides that include information on how to distinguish problematic invasive plants from similar native species.

scholarly journals A Path Forward: Promoting Microbial-Based Methods in the Control of Invasive Plant Species

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 943
Author(s):  
Maryam Shahrtash ◽  
Shawn P. Brown
Keyword(s):  
Invasive Plants ◽  
Plant Pathogens ◽  
Invasive Plant ◽  
Native Plants ◽  
Management Strategies ◽  
Plant Management ◽  
Invasive Plant Species ◽  
Invasive Plant Management ◽  
Management Plans ◽  
Microbe Interactions

In this review, we discuss the unrealized potential of incorporating plant–microbe and microbe–microbe interactions into invasive plant management strategies. While the development of this as a viable strategy is in its infancy, we argue that incorporation of microbial components into management plans should be a priority and has great potential for diversifying sustainable control options. We advocate for increased research into microbial-mediated phytochemical production, microbial controls to reduce the competitiveness of invasive plants, microbial-mediated increases of herbicidal tolerance of native plants, and to facilitate increased pathogenicity of plant pathogens of invasive plants.

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