Updating the National Baseline of Non-Indigenous Species in Spanish Marine Waters

Diversity, Journal Year: 2023, Volume and Issue: 15(5), P. 630 - 630

Published: May 5, 2023

The introduction of new non-indigenous species (NIS) in Spanish marine waters is addressed under Descriptor 2 the European Union’s Marine Strategy Framework Directive. National baseline inventories NIS have been compiled and updated for three subregions (Western Mediterranean Sea, WMED; Bay Biscay–Iberian Coast, ABI; Macaronesia, AMA) with data from 1800 to 2021. An overall 574 were identified an alien, cryptogenic, crypto-expanding, or debatable status, mostly invertebrates (~65%) primary producers (~22%). Of 412 alien species, 80.51% reported ABI, 67.82% WMED, 66.67% AMA. Cryptogenic are more abundant WMED (25.25%), compared AMA (19.77%) ABI (18.46%). harbors established (62.56%) than (45.2%) (43.56%), contrary casual records (AMA 31.64%, 23.76%, 13.85%). Invasive (14.36%) WMED. ‘transport-stowaway’ pathway accounted 142 (79.33%), 123 (67.58%), 169 (85.21%) AMA, respectively. second most common was ‘transport-contaminant’ related mariculture (~10% total), prevalently 42 (23.08%). Canary Islands stand out introduced through oil platforms throughout world. ‘Unaided’ a relevant secondary into particularly Lessepsian progressing westwards. Temporal trends newly show similar behavior among subregions.

Language: Английский

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A horizon scan exercise for aquatic invasive alien species in Iberian inland waters

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 869, P. 161798 - 161798

Published: Jan. 23, 2023

As the number of introduced species keeps increasing unabatedly, identifying and prioritising current potential Invasive Alien Species (IAS) has become essential to manage them. Horizon Scanning (HS), defined as an exploration threats, is considered a fundamental component IAS management. By combining scientific knowledge on taxa with expert opinion, we identified most relevant aquatic in Iberian Peninsula, i.e., those greatest geographic extent (or probability introduction), severe ecological, economic human health impacts, difficulty acceptability We highlighted 126 already present inland waters (i.e., Concern list) 89 high being near future Alert list), which 24 10 IAS, respectively, were management priority after receiving highest scores assessment top-ranked IAS). In both lists, belonging four thematic groups (plants, freshwater invertebrates, estuarine vertebrates) having been through various pathways from different regions world classified according their main functional feeding groups. Also, latest update list Union concern pursuant Regulation (EU) No 1143/2014 includes only 12 for while national lists incorporate vast majority This fact underlines great importance prioritisation exercises at biogeographical scales step prior risk analyses inclusion lists. HS provides robust cost-effective strategy decision-makers stakeholders prioritise use limited resources prevention Although applied transnational level European biodiversity hotspot, this approach designed application any geographical or administrative scale, including continental one.

Language: Английский

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Invaders at the doorstep: Using species distribution modeling to enhance invasive plant watch lists

Ecological Informatics, Journal Year: 2023, Volume and Issue: 75, P. 101997 - 101997

Published: Jan. 19, 2023

Language: Английский

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Mapping invasive alien plant species with very high spatial resolution and multi-date satellite imagery using object-based and machine learning techniques: A comparative study

GIScience & Remote Sensing, Journal Year: 2023, Volume and Issue: 60(1)

Published: March 24, 2023

Invasive alien plant species (IAPS) have negative impacts on ecosystems, including the loss of biodiversity and alteration ecosystem functions. The strategy for mitigating these requires knowledge species' spatial distribution level infestation. In situ inventories or aerial photo interpretation can be used to collect data but they are labor-intensive, time-consuming, incomplete, especially when dealing with large inaccessible areas. Remote sensing may an effective method mapping IAPS a better management strategy. Several studies using remote map focused single detection were conducted in relatively homogeneous natural environments, while other common, more heterogeneous such as urban areas, often invaded by multiple IAPS, posing challenges. main objective this study was develop three major observed agglomeration Quebec City (Canada), namely Japanese knotweed (Fallopia japonica); giant hogweed (Heracleum mantegazzianum); phragmites (Phragmites australis). Mono-date multi-date classification approaches WorldView-3 SPOT-7 satellite imagery, acquired summer 2020 autumn 2019, respectively. To estimate presence probability, object-based image analysis (OBIA) nonparametric classifiers Support Vector Machine (SVM), Random Forest (RF), Extreme Gradient Boosting (XGBoost) used. Overall, images produced best results, Kappa coefficient 0.85 overall accuracy 91% RF. For XGBoost, 0.81 89%, whereas 0.80 88% SVM classifier, Individual class performances based F1-score revealed that had highest maximum value (0.95), followed (0.91), (0.87). These results confirmed potential accurately simultaneously monitor environment approach. Although approach is limited reference availability, it provides new tools managers invasion control.

Language: Английский

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The regulation of alien species in South Africa

South African Journal of Science, Journal Year: 2024, Volume and Issue: 120(5/6)

Published: May 27, 2024

A key global change challenge is to significantly reduce the risks of alien taxa causing harmful impacts without compromising rights citizens. As part efforts address this challenge, South Africa promulgated comprehensive regulations and lists in 2014. In paper, we review how developed, changed over time, they have been implemented. March 2021, 560 were listed under four broad regulatory categories, between 2014 2020, almost 3000 permits issued regulate continued use taxa. The full regulated taxa, issued, corresponding are available Supplementary material. proposed standardised, transparent, science-informed process revise also presented – as 30 April 2024, risk analyses developed for 140 using Risk Analysis Alien Taxa (RAAT) framework reviewed by an independent scientific body [the Species Review Panel (ASRARP)] with input from taxon-specific experts. These recommendations being considered interdepartmental governmental decision-making established 2023 Committee (RARC)]. Finally, issues listing that remain be resolved presented. Africa’s continues develop, regulating will, believe, become more consistent, acceptable stakeholders, ultimately facilitate

Language: Английский

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