Rangeland Monitoring and Invasive Weeds

2003 ◽  
Vol 17 (4) ◽  
pp. 439-447 ◽  
Author(s):  
James A. Young ◽  
Charlie D. Clements
Keyword(s):  
Invasive Weeds ◽  
Rangeland Monitoring

scholarly journals Predicting Impacts of Climate Change on Northward Range Expansion of Invasive Weeds in South Korea

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1604
Author(s):  
Sun Hee Hong ◽  
Yong Ho Lee ◽  
Gaeun Lee ◽  
Do-Hun Lee ◽  
Pradeep Adhikari
Keyword(s):  
Climate Change ◽  
South Korea ◽  
Habitat Suitability ◽  
Management Strategies ◽  
Southern Region ◽  
Suitable Habitat ◽  
Invasive Weeds ◽  
Northern Regions ◽  
Suitable Habitats ◽  
Control And Management

Predicting the distribution of invasive weeds under climate change is important for the early identification of areas that are susceptible to invasion and for the adoption of the best preventive measures. Here, we predicted the habitat suitability of 16 invasive weeds in response to climate change and land cover changes in South Korea using a maximum entropy modeling approach. Based on the predictions of the model, climate change is likely to increase habitat suitability. Currently, the area of moderately suitable and highly suitable habitats is estimated to be 8877.46 km2, and 990.29 km2, respectively, and these areas are expected to increase up to 496.52% by 2050 and 1439.65% by 2070 under the representative concentration pathways 4.5 scenario across the country. Although habitat suitability was estimated to be highest in the southern regions (<36° latitude), the central and northern regions are also predicted to have substantial increases in suitable habitat areas. Our study revealed that climate change would exacerbate the threat of northward weed invasions by shifting the climatic barriers of invasive weeds from the southern region. Thus, it is essential to initiate control and management strategies in the southern region to prevent further invasions into new areas.

scholarly journals Very-High-Resolution Panoramic Photography to Improve Conventional Rangeland Monitoring

2009 ◽  
Vol 62 (6) ◽  
pp. 579-582 ◽  
Author(s):  
Mary H. Nichols ◽  
George B. Ruyle ◽  
Illah R. Nourbakhsh
Keyword(s):  
High Resolution ◽  
Rangeland Monitoring ◽  
Very High

scholarly journals Unsuccessful introduced biocontrol agents can act as pollinators of invasive weeds: Bitou Bush (Chrysanthemoides moniliferassp.rotundata) as an example

2017 ◽  
Vol 7 (20) ◽  
pp. 8643-8656 ◽  
Author(s):  
Caroline L. Gross ◽  
Joshua D. Whitehead ◽  
Camila Silveira de Souza ◽  
David Mackay
Keyword(s):  
Biocontrol Agents ◽  
Invasive Weeds ◽  
Bitou Bush

Mimosa pigra (giant sensitive plant).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval ◽  
Pedro Acevedo-Rodríguez
Keyword(s):  
Rice Fields ◽  
Invasive Weeds ◽  
Tropical Africa ◽  
Old World ◽  
Mimosa Pigra ◽  
Agricultural Weed ◽  
Natural Wetlands ◽  
The Cost ◽  
Old World Tropics

Abstract M. pigra is a small prickly shrub that infests wetlands and is also an agricultural weed in rice fields in many parts of the old world tropics. In natural wetlands the shrub alters open grasslands into dense thorny thickets and negatively impacts on native biodiversity. It is regarded as one of the worst alien invasive weeds of wetlands of tropical Africa, Asia and Australia, and the cost of control is often high.

Opuntia ficus-indica (prickly pear).

2021 ◽  
Author(s):  
Nick Pasiecznik
Keyword(s):  
Vitamin C ◽  
Large Scale ◽  
Time Lag ◽  
Prickly Pear ◽  
Invasive Weeds ◽  
Historical Records ◽  
Opuntia Ficus Indica ◽  
Actual Risk ◽  
Invasive Spread ◽  
Almost All

Abstract O. ficus-indica is highly valued as a fruit-producing cactus, also yielding 'leaves' that are used as a vegetable and browsed by livestock. It has been introduced widely from its native Mexico to almost all countries where the climate is suitable. The fruit is very rich in vitamin C and is exploited commercially in many areas. Many countries, especially in Asia, have recently established large-scale commercial plantations. However, O. ficus-indica, like several other species of Opuntia, have been known to spread and become invasive weeds. Historical records, however, appear to indicate a time-lag of about 100 years between introduction and the beginnings of invasive spread thus the actual risk may be low.

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