Disentangling the abundance–impact relationship for invasive species

Proceedings of the National Academy of Sciences, Год журнала: 2019, Номер 116(20), С. 9919 - 9924

Опубликована: Апрель 29, 2019

To predict the threat of biological invasions to native species, it is critical that we understand how increasing abundance invasive alien species (IAS) affects populations and communities. The form this relationship across taxa ecosystems unknown, but expected depend strongly on trophic position IAS relative species. Using a global metaanalysis based 1,258 empirical studies presented in 201 scientific publications, assessed shape, direction, strength responses invader abundance. We also tested varied with for at population vs. community levels. As increased, declined nonlinearly by 20%, average, metrics linearly 25%. When higher levels, invaders tended cause strong, nonlinear decline communities, greatest impacts occurring low In contrast, same level linear while lower levels had no consistent impacts. At level, significantly larger effects evenness diversity than richness. Our results show invasion critically species’ position. Further, these general abundance–impact relationships reveal are likely develop during process when best manage them.

Язык: Английский

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Four priority areas to advance invasion science in the face of rapid environmental change

Environmental Reviews, Год журнала: 2020, Номер 29(2), С. 119 - 141

Опубликована: Дек. 7, 2020

Unprecedented rates of introduction and spread non-native species pose burgeoning challenges to biodiversity, natural resource management, regional economies, human health. Current biosecurity efforts are failing keep pace with globalization, revealing critical gaps in our understanding response invasions. Here, we identify four priority areas advance invasion science the face rapid global environmental change. First, should strive develop a more comprehensive framework for predicting how behavior, abundance, interspecific interactions vary relation conditions receiving environments these factors govern ecological impacts invasion. A second is understand potential synergistic effects multiple co-occurring stressors— particularly involving climate change—on establishment impact species. Climate adaptation mitigation strategies will need consider possible consequences promoting species, appropriate management responses be developed. The third address taxonomic impediment. ability detect evaluate risks compromised by growing deficit expertise, which cannot adequately compensated new molecular technologies alone. Management become increasingly challenging unless academia, industry, governments train employ personnel taxonomy systematics. Fourth, recommend that internationally cooperative bridgehead dispersal networks, organisms tend invade regions from locations where they have already established. Cooperation among countries eradicate or control established yield greater benefit than independent attempts individual exclude arriving establishing.

Язык: Английский

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Taming the terminological tempest in invasion science

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Год журнала: 2024, Номер 99(4), С. 1357 - 1390

Опубликована: Март 18, 2024

ABSTRACT Standardised terminology in science is important for clarity of interpretation and communication. In invasion – a dynamic rapidly evolving discipline the proliferation technical has lacked standardised framework its development. The result convoluted inconsistent usage terminology, with various discrepancies descriptions damage interventions. A therefore needed clear, universally applicable, consistent to promote more effective communication across researchers, stakeholders, policymakers. Inconsistencies stem from exponential increase scientific publications on patterns processes biological invasions authored by experts disciplines countries since 1990s, as well legislators policymakers focusing practical applications, regulations, management resources. Aligning standardising stakeholders remains challenge science. Here, we review evaluate multiple terms used (e.g. ‘non‐native’, ‘alien’, ‘invasive’ or ‘invader’, ‘exotic’, ‘non‐indigenous’, ‘naturalised’, ‘pest’) propose simplified terminology. streamlined translate into 28 other languages based ( i ) denoting species transported beyond their natural biogeographic range, ii ‘established non‐native’, i.e. those non‐native that have established self‐sustaining populations new location(s) wild, iii ‘invasive non‐native’ recently spread are spreading invaded range actively passively without human mediation. We also highlight importance conceptualising ‘spread’ classifying invasiveness ‘impact’ management. Finally, protocol dispersal mechanism, origin, population status, iv impact. Collectively introducing present aims facilitate collaboration species.

Язык: Английский

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Dimensions of invasiveness: Links between local abundance, geographic range size, and habitat breadth in Europe’s alien and native floras

Proceedings of the National Academy of Sciences, Год журнала: 2021, Номер 118(22)

Опубликована: Май 28, 2021

Significance Invasive alien species pose major threats to biodiversity and ecosystems. However, identifying drivers of invasion success has been challenging, in part because can achieve invasiveness different ways, each corresponding aspects demographics distribution. Employing a multidimensional perspective Europe’s flora, we find generally fall along an axis from overall poor invaders super that become abundant, widespread, invade diverse habitats. Some deviate this pattern are recently introduced still spreading, but others represent atypical forms invasiveness. In addition traits ecological circumstances associated with (e.g., intercontinental introductions), explore invasions, providing increased clarity into processes.

Язык: Английский

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Invasion impacts and dynamics of a European‐wide introduced species

Global Change Biology, Год журнала: 2022, Номер 28(15), С. 4620 - 4632

Опубликована: Май 15, 2022

Globalization has led to the introduction of thousands alien species worldwide. With growing impacts by invasive species, understanding invasion process remains critical for predicting adverse effects and informing efficient management. Theoretically, dynamics have been assumed follow an "invasion curve" (S-shaped curve available area invaded over time), but this dynamic lacked empirical testing using large-scale data neglects consider invader abundances. We propose "impact describing generated time based on cumulative To test curve's applicability, we used data-rich New Zealand mud snail Potamopyrgus antipodarum, one most damaging freshwater invaders that almost all Europe. Using long-term (1979-2020) abundance environmental collected across 306 European sites, observed P. antipodarum generally increased through time, with slower population growth at higher latitudes lower runoff depth. Fifty-nine percent these populations followed impact curve, characterized first occurrence, exponential growth, then saturation. This behaviour is consistent boom-bust dynamics, as saturation occurs due a rapid decline in time. Across estimated peaked approximately two decades after detection, rate progression along was influenced local abiotic conditions. The S-shaped may be common among many undergo complex dynamics. provides potentially unifying approach advance could inform timely management actions mitigate ecosystems economies.

Язык: Английский

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Deep learning detects invasive plant species across complex landscapes using Worldview‐2 and Planetscope satellite imagery

Remote Sensing in Ecology and Conservation, Год журнала: 2022, Номер 8(6), С. 875 - 889

Опубликована: Июнь 13, 2022

Abstract Effective management of invasive species requires rapid detection and dynamic monitoring. Remote sensing offers an efficient alternative to field surveys for plants; however, distinguishing individual plant can be challenging especially over geographic scales. Satellite imagery is the most practical source data developing predictive models landscapes, but spatial resolution spectral information limiting. We used two types satellite detect plant, leafy spurge ( Euphorbia virgata ), across a heterogeneous landscape in Minnesota, USA. developed convolutional neural networks (CNNs) with from Worldview‐2 Planetscope satellites. has high resolution, images are not routinely taken space or time. By contrast, lower daily Earth. The former had 96.1% accuracy detecting spurge, whereas latter 89.9% accuracy. Second, we modified CNN long short‐term memory (LSTM) layer that leverages on phenology time series images. LSTM model was 96.3%, par model. Across models, false‐positive errors occurred near true populations, indicating these consequential management. identified early mid‐season phenological periods were key predicting spurge. Additionally, green, red‐edge near‐infrared bands important differentiating other vegetation. These findings suggest deep learning accurately identify complex landscapes even modest if temporal incorporated. Our results will help inform future efforts using remote plants, large‐scale, data‐sparse areas.

Язык: Английский

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Sigmoidal curves reflect impacts and dynamics of aquatic invasive species

The Science of The Total Environment, Год журнала: 2023, Номер 872, С. 161818 - 161818

Опубликована: Фев. 16, 2023

Язык: Английский

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Recent advances in availability and synthesis of the economic costs of biological invasions

BioScience, Год журнала: 2023, Номер 73(8), С. 560 - 574

Опубликована: Авг. 1, 2023

Biological invasions are a global challenge that has received insufficient attention. Recently available cost syntheses have provided policy- and decision makers with reliable up-to-date information on the economic impacts of biological invasions, aiming to motivate effective management. The resultant InvaCost database is now publicly freely accessible enables rapid extraction monetary information. This facilitated knowledge sharing, developed more integrated multidisciplinary network researchers, forged collaborations among diverse organizations stakeholders. Over 50 scientific publications so far used detailed assessments invasion costs across geographic, taxonomic, spatiotemporal scales. These studies important can guide future policy legislative decisions management while simultaneously attracting public media We provide an overview improved availability, reliability, standardization, defragmentation costs; discuss how this enhanced science as discipline; outline directions for development.

Язык: Английский

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The faunal Ponto-Caspianization of central and western European waterways

Biological Invasions, Год журнала: 2023, Номер 25(8), С. 2613 - 2629

Опубликована: Апрель 19, 2023

Abstract As alien invasive species are a key driver of biodiversity loss, understanding patterns rapidly changing global compositions depends upon knowledge population dynamics and trends at large scales. Within this context, the Ponto-Caspian region is among most notable donor regions for aquatic in Europe. Using macroinvertebrate time series collected over 52 years (1968–2020) 265 sites across 11 central western European countries, we examined occurrences, invasion rates, abundances freshwater fauna. We whether: (i) successive invasions follow consistent pattern composition pioneered by same species, (ii) accelerates subsequent rates. In our dataset, macroinvertebrates increased from two 1972 to 29 2012. This trend was parallelled non-significant increasing taxa. Trends invader richness significantly time. found relatively uniform distribution Europe without any relation distance their native region. The that arrived first were often bivalves (46.5% cases), particularly Dreissena polymorpha , followed secondarily amphipods (83.8%; primarily Chelicorophium curvispinum Dikerogammarus villosus ) . between consecutive decreased coarse regional scale, suggesting previous establishments may facilitate Should continue translocate region, results suggest high potential future success highly connected waters. However, each species’ decline after an initial ‘boom’ phase or arrival new resulting different dominating

Язык: Английский

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Quantifying invasion dynamics: Quantitative polymerase chain reaction vs. droplet digital polymerase chain reaction in monitoring the alien invasive bloody‐red shrimp Hemimysis anomala and its interaction with perch in Lake Geneva

Limnology and Oceanography Methods, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Invasive alien species constitute a major threat to aquatic systems due their potential impact on endemic biodiversity, ecosystem functioning, infrastructure, and possible sanitary issues. It is therefore crucial obtain information presence, abundance, distribution. The bloody‐red shrimp Hemimysis anomala , which originated from the Ponto‐Caspian area, has recently settled in Western European lakes, including Lake Geneva. Although divers have frequently reported presence development of this small crustacean over last decade, no monitoring yet been proposed. During period 2.5 yr, we tested optimized an environmental deoxyribonucleic acid approach by comparing two polymerase chain reaction techniques, quantitative digital droplet reaction, assess dynamics animal as well that predator, perch ( Perca fluviatilis ). We show discuss efficiency methods reveal for first time seasonal at selected site highlight, agreement with diving observations, animal's abundance high winter declines rapidly early spring, concomitantly temperature increase presence.

Язык: Английский

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