Biological invasions are a population‐level rather than a species‐level phenomenon

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(5)

Published: May 1, 2024

Biological invasions pose a rapidly expanding threat to the persistence, functioning and service provisioning of ecosystems globally, socio-economic interests. The stages successful are driven by same mechanism that underlies adaptive changes across species in general-via natural selection on intraspecific variation traits influence survival reproductive performance (i.e., fitness). Surprisingly, however, rapid progress field invasion science has resulted predominance species-level approaches (such as deny lists), often irrespective theory, local adaptation other population-level processes govern invasions. To address these issues, we analyse non-native dynamics at population level employing database European freshwater macroinvertebrate time series, investigate spreading speed, abundance impact assessments among populations. Our findings reveal substantial variability speed trends within between biogeographic regions, indicating levels invasiveness differ markedly. Discrepancies inconsistencies risk screenings real data were also identified, highlighting inherent challenges accurately assessing effects through assessments. In recognition importance assessments, urge shift invasive management frameworks, which should account for different populations their environmental context. Adopting an adaptive, region-specific population-focused approach is imperative, considering diverse ecological contexts varying degrees susceptibility. Such could improve refine while promoting mechanistic understandings risks impacts, thereby enabling development more effective conservation strategies.

Language: Английский

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Moving from the species to the population level in biological invasions

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(7)

Published: July 1, 2024

Invasion scientists need to focus on the population level, not species if aiming unravel complexities of invasion dynamics at meaningful spatial and temporal scales contribute a more comprehensive understanding how invasive non‐native interact with impact ecosystems.

Language: Английский

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Exploring invasiveness and versatility of used microhabitats of the globally invasive Gambusia holbrooki

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 925, P. 171718 - 171718

Published: March 13, 2024

Introductions of non-native species can lead to severe impacts, including the decline ecosystem function through deleterious impacts on diversity. The successful establishment in new environments is first barrier a must overcome, ultimately depending its ability either cope with or adapt local site-specific conditions. Despite widespread distribution and ecological consequences many freshwater invaders, climatic preferences are often unknown, as case Eastern mosquitofish Gambusia holbrooki, global invader considered pervasive threat endemic species. Here, we determined features preferred conditions G. holbrooki Türkiye, which spans wide range diverse biogeographically distinct ecosystems, by surveying populations from 130 localities 2016 2017. were detected hand-net 48 these sites (19 lotic, 29 lentic). It showed preference for shallow waters medium sized rocks, abundances differed spatially across latitudinal gradient was influenced predominantly variations pH. only other factors predicting presence low current velocities gravel substrate, highlighting versatility utilising microhabitats. Bioclimatic models suggest that found areas an average annual temperature ranging 10 20 °C, but not being limiting factor invasion. shows xeric ecosystems endorheic basins, well temperate coastal rivers, upland floodplain rivers wetlands, tropical subtropical rivers. These results, particularly occurrence few factors, emphasise invasion potential should substantiate need localised invasive management conservation efforts, smaller insular where fish co-exist.

Language: Английский

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Non‐native species have higher consumption rates than their native counterparts

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

ABSTRACT Non‐native species can be major drivers of ecosystem alteration, especially through changes in trophic interactions. Successful non‐native have been predicted to greater resource use efficiency relative trophically analogous native (the Resource Consumption Hypothesis), but rigorous evidence remains equivocal. Here, we tested this proposition quantitatively a global meta‐analysis comparative functional response studies. We calculated the log ratio paired and responses, using attack rate maximum consumption parameters as variables. Explanatory variables were consumer taxonomic group feeding group, habitat, assemblage latitude, distinctiveness. Maximum rates for 70% higher, on average, than those their counterparts; also tended not significantly so. The magnitude effect sizes varied with being highest favour non‐natives molluscs herbivores. differences between freshwater taxa, perhaps reflecting sensitivity insular food webs novel consumers; pattern needs explored further additional data are obtained from terrestrial marine ecosystems. In general, our results support Hypothesis, which partly explain how successful reduce populations restructure webs.

Language: Английский

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The need of centralized coordination to counter biological invasions in the European Union

Environmental Sciences Europe, Journal Year: 2024, Volume and Issue: 36(1)

Published: July 8, 2024

Abstract Non-native species monitoring faces global challenges due to resource disparities, hindering effective implementation. Current strategies are fragmented and resource-dependent, inadequately addressing non-native dynamics subjected reporting biases, being further ridiculed by political borders. To overcome these challenges, a paradigm shift towards targeted, large-scale is crucial, requiring standardized protocols advanced technologies like environmental DNA analysis, orchestrated, applied—and enforced—following international collaboration. Despite existing efforts, networks, laws, even larger entities the European Union suffer from lack of information exchange as well economic, political, socio-cultural differences among member status, ultimately hampering united efforts against threat posed species. The absence comprehensive central hub authority, guided scientific input at same time empowered institution, emerges compelling solution. potential drawbacks, this possibly bridging gaps in approach, could coordinate standardize reporting, allocate resources, advocate increased funding. Considering rising introduction rates accelerating impacts species, creating centralized institution becomes imperative for enhancing management foster collaborative response threats.

Language: Английский

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Spatial Scale and the Underestimation of Stream Fish Community Invadedness

Global Ecology and Biogeography, Journal Year: 2025, Volume and Issue: 34(1)

Published: Jan. 1, 2025

ABSTRACT Scale‐Dependency of Native Status Classifying populations as native or nonnative requires well‐defined range boundaries for species. While many studies define status according to large biogeographic realms, natural dispersal barriers often limit species distributions at regional smaller spatial extents. As such, native/nonnative definitions are inherently scale‐dependent and estimates community invadedness thus depend on the resolution which is defined. For example, can be introduced among regions within ecological provinces (hereafter, simply “provinces”). By explicitly considering scale‐dependency definitions, we more effectively compare results across studies, comprehensively evaluate degree invasion levels, objectively communicate a Location 30,034 stream segments, conterminous United States. Time Period 2000–2023. Major Taxa Studied Freshwater fishes. Quantifying Fish Community Invadedness Across US Streams We illustrate importance by quantifying richness relative abundance in fish communities States, finding that provincially nearly four times prevalent extra‐realm species, represented approximately 10% all individuals average surveys. Implications Unrealistically broad underestimate invadedness. Dismissing regionally have severe consequences, including displacement hybridisation with loss unique through biotic homogenisation. These consequences may undermine efforts maintain protect distinct local biodiversity conserve endemic

Language: Английский

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Conceptual and ethical considerations in invasion science

BioScience, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Invasion science addresses interconnected ecological, economic, and social challenges posed by the introduction of nonnative species. Therefore, invasion scientists have to consider reconcile interdisciplinary needs while addressing potential implications their findings. Navigating diverse disciplines, including environmental sciences, ecology, economics, humanities, seek arrive at informed decisions on risk, impact, management. Individual biases, uncertainties, systemic pressures influence ability maintain objectivity resist that might otherwise distort findings or applications. In present commentary, we examine conceptual ethical dilemmas within field science, particularly reputational risks discipline perpetuating its own relevance framing invasions as insurmountable challenges. discussion, highlight how incentive structures, biased assessments framing, conflicts interest may compromise discipline's integrity. We also explore questions surrounding human responsibility animal welfare conundrums in management invasive

Language: Английский

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Assessing the phytosanitary threats of two non-native crickets under temperature change

Journal of Pest Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Numerous phytosanitary threats challenge global agriculture, ecosystems, and food security. These are exacerbated by non-native species diseases that projected to intensify in the future due warming anthropogenic habitat alterations. Assessments of ecological impacts overlooked urgently needed under shifting environments. In this study, potential effects two Orthoptera (the house cricket Acheta domesticus two-spotted Gryllus bimaculatus ) were assessed using functional response analyses. We quantified their on agriculturally relevant crops (millet) increasing temperatures (20 °C, 25 30 °C) as individuals between interspecific pairs. The experiments revealed similar seeds both across temperatures. Temperature tended amplify consumption rates responses. combined presence generally yielded an additive effect seeds, with a few instances synergistic interactions, whereby non-trophic interaction strengths significantly interacted resource density temperature. Both demonstrated remarkable adaptability varying temperatures, low mortality accentuating capacity for current This emphasizes imperative including assessments. Moreover, population monitoring implementation effective management strategies emerge pivotal measures safeguarding agricultural productivity conserving local ecosystems future. study’s findings thus underscore impact A. G. , particularly context steadily ascending pose risk

Language: Английский

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Does the Lewis spider mite constitute a threat to agricultural crops in Europe? New data on occurrence, host plants and damage in the invaded areas in Portugal

Experimental and Applied Acarology, Journal Year: 2025, Volume and Issue: 94(2)

Published: Feb. 1, 2025

Language: Английский

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Quantifying and Predicting the Spread of Established Non-Native Fishes in Peninsular Florida, USA

Biology, Journal Year: 2025, Volume and Issue: 14(2), P. 189 - 189

Published: Feb. 12, 2025

The spread of non-native species plays a substantial role in the designation as invasive, yet determination and measurement non-native-species is challenging, particularly for fishes, which are limited by aquatic connectivity. Spread has been quantified fishes variety ways exact methods vary region taxonomic group. In this study, we fish peninsular Florida used life history traits to understand what factors contribute rate at spread. Using statistical analyses, found that fast spreaders tend have larger body size, narrow diet, shorter time hatch, greater salinity tolerance, higher fecundity. However, some variables like parental care, egg diameter, reproductive guild were same or very similar across all established included analyses. Predicting whether an will quickly slowly may be more challenging than predicting introduced establish, there support regions use risk assessment process.

Language: Английский

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