scholarly journals Japanese knotweed (Fallopia japonica): An analysis of capacity to cause structural damage (compared to other plants) and typical rhizome extension

2018 ◽  
Author(s):  
Mark Fennell ◽  
Max Wade ◽  
Karen L Bacon
Keyword(s):  
Structural Damage ◽  
Structural Integrity ◽  
Negative Impact ◽  
Significant Risk ◽  
Japanese Knotweed ◽  
Socioeconomic Impacts ◽  
Fallopia Japonica ◽  
The United Kingdom ◽  
Invasive Species Control ◽  
The Uk

Fallopia japonica (Japanese knotweed) is a well-known invasive alien species in the United Kingdom and elsewhere in Europe and North America. The plant is known to have a negative impact on local biodiversity, flood risk, and ecosystem services; but in the UK it is also considered to pose a significant risk to the structural integrity of buildings that are within 7 m of the above ground portions of the plant. This has led to the presence of the plant regularly being used to refuse mortgage applications. Despite the significant socioeconomic impacts of such automatic mortgage option restriction, little research has been conducted to investigate this issue. The ‘7 m rule’ is derived from widely adopted government guidance in the UK. This study considered if there is evidence to support this phenomenon in the literature, reports the findings of a survey of invasive species control contractors and property surveyors to determine if field observations support these assertions, and reports a case study of 68 properties, located on three streets in northern England where F. japonicawas recorded. Additionally, given the importance of proximity, the 7 m rule is also tested based on data collected during the excavation based removal of F. japonicafrom 81 sites. No support was found to suggest that F. japonicacauses significant damage to built structures, even when it is growing in close proximity to them and certainly no more damage than other plant species that are not subject to such stringent lending policies. It was found that the 7 m rule is not a statistically robust tool for estimating likely rhizome extension. F. japonica rhizome rarely extends more than 4 m from above ground plants and is typically found within 2 m for small stands and 2.5 m for large stands. Based on these findings, the practice of automatically restricting mortgage options for home buyers when F. japonicais present, is not commensurate with the risk.

scholarly journals Japanese knotweed (Fallopia japonica): An analysis of capacity to cause structural damage (compared to other plants) and typical rhizome extension

2018 ◽  
Author(s):  
Mark Fennell ◽  
Max Wade ◽  
Karen L Bacon
Keyword(s):  
Structural Damage ◽  
Structural Integrity ◽  
Negative Impact ◽  
Significant Risk ◽  
Japanese Knotweed ◽  
Socioeconomic Impacts ◽  
Fallopia Japonica ◽  
The United Kingdom ◽  
Invasive Species Control ◽  
The Uk

Fallopia japonica (Japanese knotweed) is a well-known invasive alien species in the United Kingdom and elsewhere in Europe and North America. The plant is known to have a negative impact on local biodiversity, flood risk, and ecosystem services; but in the UK it is also considered to pose a significant risk to the structural integrity of buildings that are within 7 m of the above ground portions of the plant. This has led to the presence of the plant regularly being used to refuse mortgage applications. Despite the significant socioeconomic impacts of such automatic mortgage option restriction, little research has been conducted to investigate this issue. The ‘7 m rule’ is derived from widely adopted government guidance in the UK. This study considered if there is evidence to support this phenomenon in the literature, reports the findings of a survey of invasive species control contractors and property surveyors to determine if field observations support these assertions, and reports a case study of 68 properties, located on three streets in northern England where F. japonicawas recorded. Additionally, given the importance of proximity, the 7 m rule is also tested based on data collected during the excavation based removal of F. japonicafrom 81 sites. No support was found to suggest that F. japonicacauses significant damage to built structures, even when it is growing in close proximity to them and certainly no more damage than other plant species that are not subject to such stringent lending policies. It was found that the 7 m rule is not a statistically robust tool for estimating likely rhizome extension. F. japonica rhizome rarely extends more than 4 m from above ground plants and is typically found within 2 m for small stands and 2.5 m for large stands. Based on these findings, the practice of automatically restricting mortgage options for home buyers when F. japonicais present, is not commensurate with the risk.

scholarly journals Japanese knotweed (Fallopia japonica): an analysis of capacity to cause structural damage (compared to other plants) and typical rhizome extension

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5246 ◽  
Author(s):  
Mark Fennell ◽  
Max Wade ◽  
Karen L. Bacon
Keyword(s):  
Structural Damage ◽  
Structural Integrity ◽  
Negative Impact ◽  
Significant Risk ◽  
Japanese Knotweed ◽  
Socioeconomic Impacts ◽  
Fallopia Japonica ◽  
Invasive Species Control ◽  
Residential Properties ◽  
The Uk

Fallopia japonica (Japanese knotweed) is a well-known invasive alien species in the UK and elsewhere in Europe and North America. The plant is known to have a negative impact on local biodiversity, flood risk and ecosystem services; but in the UK it is also considered to pose a significant risk to the structural integrity of buildings that are within seven m of the above ground portions of the plant. This has led to the presence of the plant on residential properties regularly being used to refuse mortgage applications. Despite the significant socioeconomic impacts of such automatic mortgage option restriction, little research has been conducted to investigate this issue. The ‘seven-m rule’ is derived from widely adopted government guidance in the UK. This study considered if there is evidence to support this phenomenon in the literature, reports the findings of a survey of invasive species control contractors and property surveyors to determine if field observations support these assertions, and reports a case study of 68 properties, located on three streets in northern England where F. japonica was recorded. Additionally, given the importance of proximity, the seven-m rule is also tested based on data collected during the excavation based removal of F. japonica from 81 sites. No support was found to suggest that F. japonica causes significant damage to built structures, even when it is growing in close proximity to them and certainly no more damage than other plant species that are not subject to such stringent lending policies. It was found that the seven-m rule is not a statistically robust tool for estimating likely rhizome extension. F. japonica rhizome rarely extends more than four m from above ground plants and is typically found within two m for small stands and 2.5 m for large stands. Based on these findings, the practice of automatically restricting mortgage options for home buyers when F. japonica is present, is not commensurate with the risk.

scholarly journals 42 An Analysis of Virtual Fracture Clinics in Orthopaedic Trauma in the UK During the Coronavirus Crisis

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
J H Rhind ◽  
E Ramhamadany ◽  
R Collins ◽  
S Govilkar ◽  
D Dass ◽  
...  
Keyword(s):  
Negative Impact ◽  
Working Hours ◽  
Educational Opportunities ◽  
Decision Makers ◽  
Face To Face ◽  
Patients Satisfaction ◽  
The United Kingdom ◽  
The Uk ◽  
Virtual Fracture Clinic ◽  
British Orthopaedic Association

Abstract Aim Virtual Fracture Clinics (VFC) are advocated by new Orthopaedic (British Orthopaedic Association) and National Health Service (NHS) guidelines in the United Kingdom. We discuss benefits and limitations, reviewing the literature. As well as recommendations on introducing a VFC service during the Coronavirus pandemic and into the future. Method A narrative review identifying current literature on virtual fracture clinic outcomes when compared to traditional model fracture clinics in the UK. We identify 9 relevant publications related to VFC. Results The Glasgow Model initiated in 2011 has become the benchmark. Clinical efficiency can be improved, reducing the number of ED referrals seen in VFC by 15%-28% and face to face consultations by 65%. 33-60% of patients may be discharged after review in the VFC. Some studies have shown no negative impact on the Emergency Department (ED), the time to discharge was not increased. Patients satisfaction ranges from 91%-97% using a VFC service, and there may be cost saving benefits annually from £67,385-£212,705. Non-attendance may be reduced by 75% and there are educational opportunities for trainees. However, evidence is limited, 28% of patients prefer face-to-face consultations and not all have access to internet or email (72%). Conclusions We propose a pathway integrating the VFC model, whilst having Senior Orthopaedic decision makers available in ED, during normal working hours, to cope with the pandemic. Beyond the pandemic, evidence suggests the Glasgow model is viable for day-to-day practice.

scholarly journals Japanese Knotweed and Economic Loss in Nuisance: Framing Environmental Harm in Tort

2019 ◽  
Vol 31 (2) ◽  
pp. 343-349
Author(s):  
Mark Wilde
Keyword(s):  
Structural Damage ◽  
Economic Loss ◽  
Environmental Harm ◽  
Japanese Knotweed ◽  
Rail Infrastructure ◽  
The Uk ◽  
Court Of Appeal ◽  
Financial Losses

Abstract In two recent cases, the courts have had to grapple with liability issues arising from the spread of Japanese Knotweed, a pernicious weed, which is said to cause structural damage. One of those cases, Network Rail Infrastructure Ltd v Williams, was heard by the UK Court of Appeal where the arguments focused on the applicability of the tort of nuisance. The claimants were principally concerned about the property blight caused by the spread of the weed from a railway embankment onto their land. The litigation raises some important doctrinal points on the recoverability of economic loss in private nuisance. On a wider level, it also sheds light on how environmental harms can be framed as private financial losses which engage remedies in tort.

scholarly journals A simulation model of rhizome networks for Fallopia japonica (Japanese knotweed) in the United Kingdom

2007 ◽  
Vol 200 (3-4) ◽  
pp. 421-432 ◽  
Author(s):  
J.M.D. Smith ◽  
J.P. Ward ◽  
L.E. Child ◽  
M.R. Owen
Keyword(s):  
United Kingdom ◽  
Simulation Model ◽  
Japanese Knotweed ◽  
Fallopia Japonica ◽  
The United Kingdom

scholarly journals Impact of COVID-19 Pandemic on a Regional Stroke Thrombectomy Service in the United Kingdom

2020 ◽  
pp. 1-7
Author(s):  
Joseph Kwan ◽  
Madison Brown ◽  
Paul Bentley ◽  
Zoe Brown ◽  
Lucio D’Anna ◽  
...  
Keyword(s):  
Negative Impact ◽  
Service Evaluation ◽  
Outcome Data ◽  
Term Outcome ◽  
Neurological Outcomes ◽  
Neurological Improvement ◽  
Patient Demographics ◽  
The United Kingdom ◽  
The Uk ◽  
The Impact

<b><i>Introduction:</i></b> We examined the impact of the coronavirus disease 2019 (COVID-19) pandemic on our regional stroke thrombectomy service in the UK. <b><i>Methods:</i></b> This was a single-center health service evaluation. We began testing for COVID-19 on 3 March and introduced a modified “COVID Stroke Thrombectomy Pathway” on 18 March. We analyzed the clinical, procedural and outcome data for 61 consecutive stroke thrombectomy patients between 1 January and 30 April. We compared the data for January and February (“pre-COVID,” <i>n</i> = 33) versus March and April (“during COVID,” <i>n</i> = 28). <b><i>Results:</i></b> Patient demographics were similar between the 2 groups (mean age 71 ± 12.8 years, 39% female). During the COVID-19 pandemic, (a) total stroke admissions fell by 17% but the thrombectomy rate was maintained at 20% of ischemic strokes; (b) successful recanalization rate was maintained at 81%; (c) early neurological outcomes (neurological improvement following thrombectomy and inpatient mortality) were not significantly different; (d) use of general anesthesia fell significantly from 85 to 32% as intended; and (e) time intervals from onset to arrival, groin puncture, and recanalization were not significantly different, whereas internal delays for external referrals significantly improved for door-to-groin puncture (48 [interquartile range (IQR) 39–57] vs. 33 [IQR 27–44] minutes, <i>p</i> = 0.013) and door-to-recanalization (82.5 [IQR 61–110] vs. 60 [IQR 55–70] minutes, <i>p</i> = 0.018). <b><i>Conclusion:</i></b> The COVID-19 pandemic has had a negative impact on the stroke admission numbers but not stroke thrombectomy rate, successful recanalization rate, or early neurological outcome. Internal delays actually improved during the COVID-19 pandemic. Further studies should examine the effects of the COVID-19 pandemic on longer term outcome.

scholarly journals New Approaches on Japanese Knotweed (Fallopia japonica) Bioactive Compounds and Their Potential of Pharmacological and Beekeeping Activities: Challenges and Future Directions

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2621
Author(s):  
Alexandra-Antonia Cucu ◽  
Gabriela-Maria Baci ◽  
Ştefan Dezsi ◽  
Mircea-Emil Nap ◽  
Florin Ioan Beteg ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Therapeutic Potential ◽  
Negative Impact ◽  
Ecological Impact ◽  
Japanese Knotweed ◽  
Future Directions ◽  
Fallopia Japonica ◽  
Beneficial Effects ◽  
Health Promoting ◽  
Pharmacological Potential

Known especially for its negative ecological impact, Fallopia japonica (Japanese knotweed) is now considered one of the most invasive species. Nevertheless, its chemical composition has shown, beyond doubt, some high biological active compounds that can be a source of valuable pharmacological potential for the enhancement of human health. In this direction, resveratrol, emodin or polydatin, to name a few, have been extensively studied to demonstrate the beneficial effects on animals and humans. Thus, by taking into consideration the recent advances in the study of Japanese knotweed and its phytochemical constituents, the aim of this article is to provide an overview on the high therapeutic potential, underlining its antioxidant, antimicrobial, anti-inflammatory and anticancer effects, among the most important ones. Moreover, we describe some future directions for reducing the negative impact of Fallopia japonica by using the plant for its beekeeping properties in providing a distinct honey type that incorporates most of its bioactive compounds, with the same health-promoting properties.

scholarly journals Effects of invasive japanese knotweed on diversity and structure of soil nematode communities

2021 ◽  
Author(s):  
Marek Renčo ◽  
◽  
Andrea Čerevková ◽  
Nicola Sasanelli ◽  
◽  
...  
Keyword(s):  
Food Webs ◽  
Negative Impact ◽  
Structural Complexity ◽  
Species Number ◽  
Soil Nematode ◽  
Japanese Knotweed ◽  
Fallopia Japonica ◽  
Nematode Communities ◽  
Maturity Indices ◽  
Tatra National Park

In this study we investigated the communities of soil nematodes in the forest habitats invaded and uninvaded by Fallopia japonica (Houtt.) Ronse Decr., in Tatra National Park, Slovakia. We found that invasion by F. japonica altered nematode communities and their structures. Total nematode abundance, species number and nematode biomass were significantly lower in invaded than uninvaded plots, but species diversity remained unaffected throughout the study. The overall abundance of all nematode trophic groups well represented the negative impact of F. japonica invasion on soil food webs, supported by low values of all maturity indices, a structural index and the Jaccard index of faunal similarity. A weighted faunal analysis similarly characterized the food webs of invaded plots as poorly developed or highly disturbed, with bacterial decomposition and a low C/N ratio. Our findings thus suggest that dense plots of knotweed simplify the structural complexity of the soil environment by reducing the richness of plant species, which may have contributed to the negative changes in the structures of the nematode communities.

scholarly journals COVID-19 and fertility services in the United Kingdom; a biphasic qualitative study.

2021 ◽  
Author(s):  
Babu Karavadra ◽  
Andrea Stockl ◽  
Adam H Balen ◽  
Edward Patrick Morris
Keyword(s):  
United Kingdom ◽  
Service Providers ◽  
Negative Impact ◽  
Fertility Treatment ◽  
Online Questionnaire ◽  
Telephone Interviews ◽  
The United Kingdom ◽  
The Uk ◽  
Cultural Pressures ◽  
The Impact

Recently, fertility services have started the process of resumption since COVID 19 was declared a pandemic, but there remains significant uncertainty in the way this care will be delivered in the United Kingdom (UK). The objective of our study was to explore the impact of COVID-19 on individuals using fertility services in the UK. The study was conducted in two phases between May 2020 to July 2020: an online questionnaire involving 1212 participants and subsequent individual semi-structured telephone interviews with 15 participants. Through thematic analysis, we learned from the questionnaire findings that 74% of individuals identified as White British, 21% as Black And Minority Ethnic (BAME) and 2.6% as male. 96% of individuals from the questionnaire explained that COVID-19 had a ‘negative impact’ on their fertility treatment, namely ‘delay in care’. 82% of participants discussed concerns about the 'uncertainty' they felt about fertility services; these included the ‘unknown impact of COVID-19 on pregnancy outcomes’, the ‘unknown impact on general gynaecology services’ and the ‘unknown impact of COVID-19 on fertility success'. Through semi-structured telephone interviews with fifteen participants, we learned about the ‘cultural pressures’ individuals from BAME backgrounds faced in relation to care. Participants were mindful about the ‘pressures on the service’ when re-opening, and therefore ‘advancing maternal age’, ‘socio-economic background’ and ‘previous unsuccessful fertility treatment’ were the main factors individuals considered important when ‘prioritising’ fertility care. Our findings can be used by fertility service providers to appreciate the patient perspective when considering the re-opening of fertility services nationally and internationally.

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