Biology, distribution and control of the invasive species Ulex europaeus (Gorse): A global synthesis of current and future management challenges and research gaps

Weed Research ◽  
2021 ◽  
Author(s):  
Jason Roberts ◽  
Singarayer Florentine
Keyword(s):  
Invasive Species ◽  
Research Gaps ◽  
Ulex Europaeus ◽  
And Control ◽  
Future Management

Invasive Shot Hole Borers Euwallacea fornicatus, E. kuroshio, and E. perbrevis (Coleoptera: Curculionidae: Scolytinae)

EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 7
Author(s):  
Demian F. Gomez ◽  
Jiri Hulcr ◽  
Daniel Carrillo
Keyword(s):  
South Africa ◽  
Invasive Species ◽  
Prevention And Control ◽  
Economic Impacts ◽  
Forest Resources ◽  
Economic Damage ◽  
Ambrosia Beetles ◽  
Invasive Insects ◽  
The World ◽  
And Control

Invasive species, those that are nonnative and cause economic damage, are one of the main threats to ecosystems around the world. Ambrosia beetles are some of the most common invasive insects. Currently, severe economic impacts have been increasingly reported for all the invasive shot hole borers in South Africa, California, Israel, and throughout Asia. This 7-page fact sheet written by Demian F. Gomez, Jiri Hulcr, and Daniel Carrillo and published by the School of Forest Resources and Conservation describes shot hole borers and their biology and hosts and lists some strategies for prevention and control of these pests. http://edis.ifas.ufl.edu/fr422

Theory A, Theory B and Theory C of managing people at work

2021 ◽  
Vol 5 (1) ◽  
pp. 69-75
Author(s):  
Birendra Nath Singh
Keyword(s):  
Empirical Studies ◽  
Shop Floor ◽  
Scientific Management ◽  
Business Organization ◽  
Business Organizations ◽  
Research Gaps ◽  
Future Studies ◽  
Modern Business ◽  
And Control ◽  
The Impact

Managing people and productivity are prime concerns of modern business organizations. Many empirical studies were conducted during the era of scientific management (Taylor, 1911) to investigate What and How? McGregor’s (1960) epic theory — Theory X and Theory Y, categorizing all employees into two groups and prescribing methods to motivate and control them was the best. However, his findings also suffered strong criticisms, creating research gaps. The objective of this study was to investigate further and to conclude that there are three major groups named Theory A, Theory B, and Theory C. Amongst them, a middle group — Theory B is most dominant, having all capabilities to significantly influence productivity and prosperity of organizations. The methodology used was qualitative, based upon intensive and critical shop-floor observations. Since this study was not empirical, it had many limitations requiring further researches. Therefore, rightly recommended that future studies should correlate the impact of technological advancements upon motivations and productivity of the modern business organization (Veitch, 2018).

Detection of a global aquatic invasive amphibian, Xenopus laevis, using environmental DNA

2016 ◽  
Vol 37 (1) ◽  
pp. 131-136 ◽  
Author(s):  
Jean Secondi ◽  
Tony Dejean ◽  
Alice Valentini ◽  
Benjamin Audebaud ◽  
Claude Miaud
Keyword(s):  
Invasive Species ◽  
Xenopus Laevis ◽  
Dna Amplification ◽  
Control Program ◽  
Environmental Dna ◽  
Climatic Conditions ◽  
Low Density ◽  
African Species ◽  
A Site ◽  
And Control

Detection is crucial in the study and control of invasive species but it may be limited by methodological issues. In amphibians, classical survey techniques exhibit variable detection probability depending on species and are often constrained by climatic conditions often requiring several site visits. Furthermore, detection may be reduced at low density because probability capture (passive traps), or activity (acoustic surveys) drop. Such limits may impair the study of invasive species because low density is typical of the onset of colonisation on a site. In the last few years, environmental DNA (eDNA) methods have proved their ability to detect the presence of aquatic species. We developed here an eDNA method to detectXenopus laevisin ponds. This austral African species is now present worldwide because of its use in biology and as a pet. Populations have settled and expanded on several continents so that it is now considered as one of the major invasive amphibians in the World. We detected the presence ofX. laevisat density as low as 1 ind/100 m2and found a positive relationship between density in ponds and rate of DNA amplification. Results show that eDNA can be successfully applied to survey invasive populations ofX. laeviseven at low density in order to confirm suspected cases of introduction, delimit the expansion of a colonized range, or monitor the efficiency of a control program.

scholarly journals Modelling detection probabilities to evaluate management and control tools for an invasive species

2010 ◽  
Vol 47 (1) ◽  
pp. 106-113 ◽  
Author(s):  
Michelle T. Christy ◽  
Amy A. Yackel Adams ◽  
Gordon H. Rodda ◽  
Julie A. Savidge ◽  
Claudine L. Tyrrell
Keyword(s):  
Invasive Species ◽  
Detection Probabilities ◽  
And Control

scholarly journals Concerning RNA-guided gene drives for the alteration of wild populations

eLife ◽  
2014 ◽  
Vol 3 ◽  
Author(s):  
Kevin M Esvelt ◽  
Andrea L Smidler ◽  
Flaminia Catteruccia ◽  
George M Church
Keyword(s):  
Invasive Species ◽  
Herbicide Resistance ◽  
Wild Populations ◽  
Genomic Changes ◽  
Ecological Problems ◽  
Political Borders ◽  
And Control ◽  
Gene Drives ◽  
Careful Assessment ◽  
General Method

Gene drives may be capable of addressing ecological problems by altering entire populations of wild organisms, but their use has remained largely theoretical due to technical constraints. Here we consider the potential for RNA-guided gene drives based on the CRISPR nuclease Cas9 to serve as a general method for spreading altered traits through wild populations over many generations. We detail likely capabilities, discuss limitations, and provide novel precautionary strategies to control the spread of gene drives and reverse genomic changes. The ability to edit populations of sexual species would offer substantial benefits to humanity and the environment. For example, RNA-guided gene drives could potentially prevent the spread of disease, support agriculture by reversing pesticide and herbicide resistance in insects and weeds, and control damaging invasive species. However, the possibility of unwanted ecological effects and near-certainty of spread across political borders demand careful assessment of each potential application. We call for thoughtful, inclusive, and well-informed public discussions to explore the responsible use of this currently theoretical technology.

Robust Surveillance and Control of Invasive Species Using a Scenario Optimization Approach

2017 ◽  
Vol 133 ◽  
pp. 86-98 ◽  
Author(s):  
Denys Yemshanov ◽  
Robert G. Haight ◽  
Frank H. Koch ◽  
Bo Lu ◽  
Robert Venette ◽  
...  
Keyword(s):  
Invasive Species ◽  
Optimization Approach ◽  
Scenario Optimization ◽  
And Control
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