Aliens in caves: the global dimension of biological invasions in subterranean ecosystems

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2023, Volume and Issue: 98(3), P. 849 - 867

Published: Jan. 20, 2023

Alien species are a significant threat to natural ecosystems and human economies. Despite global efforts address this challenge, the documented number of alien is rapidly increasing worldwide. However, magnitude impact may vary significantly across habitats. For example, some habitats naturally less prone biological invasions due stringent abiotic biotic characteristics, selecting for limited introduced possessing traits closely related native organisms. Subterranean quintessential examples with strong environmental filters (e.g. lack light scarcity food), driving convergent adaptations in that have successfully adapted life darkness. these constraints, records subterranean has increased recent decades, but relevant literature remains largely fragmented mostly anecdotal. Therefore, even though caves generally considered very fragile ecosystems, their susceptibility impacts by untested other than specific cases. We provide first systematic survey synthesise available knowledge on globally. This review supported database summarising literature, aiming identify gaps distribution spread invertebrate habitats, laying foundations future management practices interventions. First, we quantitatively assessed current shed broader questions about taxonomic biases, geographical patterns, modes dispersal, pathways introductions potential impacts. Secondly, collected species-specific each recorded tested whether act as ecological establishment, favouring organisms pre-adaptive suitable life. found information presence 246 belonging 18 different classes. The dominant were invertebrates, especially insects arachnids. Most reported terrestrial from all continents except Antarctica. Palaearctic Nearctic biogeographic regions represented main source species. routes into recipient country linked commercial activities (84.3% cases which there was available). Negative been small case studies (22.7%), competition (6.1%), strategies effectiveness interventions rarely quantified. Accordingly, costs limited. Approximately half our can be established According results, grants access filter posed environments, facilitating establishment new habitat. recommend deepen understanding invasiveness raising public scientific community awareness preserving ecosystems.

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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Influence of intra‐ and interspecific variation in predator–prey body size ratios on trophic interaction strengths

Ecology and Evolution, Journal Year: 2020, Volume and Issue: 10(12), P. 5946 - 5962

Published: June 1, 2020

Abstract Predation is a pervasive force that structures food webs and directly influences ecosystem functioning. The relative body sizes of predators prey may be an important determinant interaction strengths. However, studies quantifying the combined influence intra‐ interspecific variation in predator–prey size ratios are lacking. We use comparative functional response approach to examine strengths between three classes invasive bluegill largemouth bass toward scaled their tilapia prey. then quantify mass on scaling attack rates handling times. Type II responses were displayed by both across all predator classes. Largemouth consumed more than at small intermediate classes, while large species similar. Small most vulnerable overall; however, differential among emergent sizes. For bass, exhibited higher sizes, larger greater Conversely, times increased with size, exhibiting particularly low feeding medium–large types. Attack for peaked unimodally ratios, generally shortened increasing ratios. thus demonstrate effects key fish species, dependent participants. Considerations ratio critical predicting interactions within ecosystems drive ecological impacts as shift.

Language: Английский

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Biological invasions in France: Alarming costs and even more alarming knowledge gaps

NeoBiota, Journal Year: 2021, Volume and Issue: 67, P. 191 - 224

Published: July 29, 2021

The ever-increasing number of introduced species profoundly threatens global biodiversity. While the ecological and evolutionary consequences invasive alien are receiving increasing attention, their economic impacts have largely remained understudied, especially in France. Here, we aimed at providing a general overview monetary losses (damages caused by) expenditures (management of) associated with This country has long history presence, partly due to its long-standing trade activities, highly developed tourism, presence overseas territories different regions globe, resulting conservative minimum 2,750 species. By synthesizing for first time incurred by Metropolitan France French territories, obtained 1,583 cost records 98 We found that they total amount ranging between US$ 1,280 million 11,535 costs over period 1993–2018. extrapolated invading France, which were reported other countries but not yielded an additional from 151 3,030 millions. Damage nearly eight times higher than management expenditure. Insects, particular Asian tiger mosquito Aedes albopictus yellow fever Ae. aegypti , totalled very high costs, followed non-graminoid terrestrial flowering aquatic plants ( Ambrosia artemisiifolia Ludwigia sp. Lagarosiphon major ). Over 90% currently recorded had no literature, biases taxonomic, regional activity sector coverages. To conclude, report alarming even more knowledge gaps. Our results should raise awareness importance biosecurity biosurveillance beyond, as well crucial need better reporting documentation data.

Language: Английский

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The rise of the Functional Response in invasion science: a systematic review

NeoBiota, Journal Year: 2023, Volume and Issue: 85, P. 43 - 79

Published: June 9, 2023

Predicting which non-native species will negatively impact biodiversity is a longstanding research priority. The Functional Response (FR; resource use in relation to availability) classical ecological concept that has been increasingly applied quantify, assess and compare impacts of species. Despite this recent growth, an overview applications knowledge gaps across relevant contexts currently lacking. We conducted systematic review using combination terms regarding FR invasion science synthesise scientific studies apply the approach field suggest new areas where it could have valuable applications. Trends publications about general were compared through Activity Index. Data extracted from papers reveal temporal, bibliographic, geographic trends, patterns study attributes such as type interaction habitat investigated, taxonomic groups used, context-dependencies assessed. In total, 120 included review. identified substantial unevenness reporting FRs science, despite rapidly growing number studies. To date, geographically skewed towards North America Europe, well predator-prey interactions freshwater habitats. Most focused on few invertebrates fishes. Species origin, life stage, environmental temperature complexity most frequently considered context-dependencies. conclude while thus far narrowly applied, broad potential application can be used test major hypotheses field.

Language: Английский

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On the RIP: using Relative Impact Potential to assess the ecological impacts of invasive alien species

NeoBiota, Journal Year: 2020, Volume and Issue: 55, P. 27 - 60

Published: April 3, 2020

Invasive alien species continue to arrive in new locations with no abatement rate, and thus greater predictive powers surrounding their ecological impacts are required. In particular, we need improved means of quantifying the invasive under different contexts. Here, develop a suite metrics based upon novel Relative Impact Potential (RIP) metric, combining functional response (consumer per capita effect), proxies for numerical population response), providing quantification impact. These comparative relation eco-evolutionary baseline trophically analogous natives, as well other across multiple populations. Crucially, also reveal how change abiotic biotic While studies focused solely on responses have been successful invasion ecology, RIP retains these advantages while adding vital elements, principally consumer abundance. can be combined propagule pressure quantify overall risk. By highlighting proxies, outline user-friendly method assessing invaders all trophic levels taxonomic groups. We apply metric impact assessment face climate by taking account both changing predator consumption rates prey reproduction rates. proceed application assess resistance against incoming species, effect evolution impacts, interspecific competition, spatio-temporal patterns invasion, inform biological control. propose that provides scientists practitioners user-friendly, customisable and, crucially, powerful technique policy management.

Language: Английский

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Biological invasion risk assessment of Tuta absoluta: mechanistic versus correlative methods

Biological Invasions, Journal Year: 2021, Volume and Issue: 23(12), P. 3809 - 3829

Published: Aug. 10, 2021

Abstract The capacity to assess invasion risk from potential crop pests before of new regions globally would be invaluable, but this requires the ability predict accurately their geographic range and relative abundance in novel areas. This may unachievable using de facto standard correlative methods as shown for South American tomato pinworm Tuta absoluta , a serious insect pest native America. Its global invasive was not identified until after rapid Europe, followed by Africa parts Asia where it has become major food security problem on solanaceous crops. Early prospective assessment its is possible physiologically based demographic modeling that have knowledge gaps T. biology at low temperatures. Physiologically models (PBDMs) realistically capture weather-driven mechanistic way allowing evaluation areas climes including climate change. PBDMs explain biological bases distribution, are generally applicable species any taxa, limited terrestrial ecosystems, hence can extended support ecological aquatic ecosystems. address lack unified general assessing managing becoming more predictive science.

Language: Английский

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Differences in the functional responses of four invasive and one native crayfish species suggest invader‐specific ecological impacts

Freshwater Biology, Journal Year: 2021, Volume and Issue: 66(11), P. 2051 - 2063

Published: Aug. 25, 2021

Abstract Invasive non‐native species represent a leading threat to global freshwater biodiversity and crayfish frequently cause extensive ecological damage. However, the extent which their impact: (1) depends on invader identity (2) differs from natural state with native remains unclear. Comparison of functional responses invasive represents promising approach in this regard. Here, we explored whether four (calico Faxonius immunis , spiny‐cheek limosus signal Pacifastacus leniusculus marbled Procambarus virginalis ) European freshwaters most widespread (noble Astacus astacus overlap function potential effects key resources benthic food webs. First, impact gammarids zebra mussels was assessed by means comparative response analysis using ratio as metric; second, consumption macrophytes ( Chara sp.) detritus (leaf litter) quantified compared feeding experiments. Both invader‐ resource‐specific were observed. calico exhibited strongest per capita mussels, respectively, ratios being 2‐fold higher than those noble crayfish. Marbled showed an intermediate effect both prey species, whereas had lower impacts In experiment, consumed highest amount detritus, while did not differ among five species. Our work demonstrates as‐yet unrecognised differences North American invaders The lack congruence across observed suggests mostly species‐specific pattern stresses importance resource when considering An initial assessment invader‐specific positions impactful invaders.

Language: Английский

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Biological Control Potential of the Reduviid Predator Rhynocoris fuscipes (Fabricius) in Managing Noctuid Pests: Insights Into Predation and Prey Preference

Insects, Journal Year: 2025, Volume and Issue: 16(2), P. 224 - 224

Published: Feb. 18, 2025

Understanding predator-prey and predator-predator interactions is essential for evaluating the effectiveness of biocontrol agents developing efficient pest management strategies. This study investigates effects prey species, predator life stage, density on predatory efficiency generalist Rhynocoris fuscipes (Fabricius) under semi-field conditions. Both nymphs adults R. consumed significantly more second-instar larvae S. frugiperda than litura or M. separata. Notably, fifth-instar exhibited higher predation capacity (11.75 ± 0.37 10.90 0.40 larvae) fourth-instar (9.05 0.29 frugiperda. demonstrated a Type II functional response at all developmental stages toward each revealed attack rates (a = 1.5205 0.0544) frugiperda; additionally, handling time did not differ among three species. It suggests that this may be effective controlling noctuid populations low densities. As age increased, intraspecific competition also intensified. In multi-prey system, showed marked preference over other two These findings indicate are particularly in suppressing early-instar pests, especially frugiperda, enhances our understanding towards pests provides foundation development targeted strategies using predator.

Language: Английский

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Effect of temperature on functional response of Blattisocius mali (Acari: Blattisociidae) preying on the acarid mite Tyrophagus putrescentiae

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 2, 2025

Abstract Climate warming significantly impacts soil temperature and moisture , leading to changes in the activity of mites foraging behaviour edaphic predatory mites. The current research aimed investigate effect on functional response mite Blattisocius mali Oudemans preying either eggs or males mould Tyrophagus putrescentiae Schrank. To analyze type generalized equation Real was used while parameters were determined using Roger Hassell Cabello et al. models. Female adult B. displayed Type III II responses when respectively across all tested temperatures ranging between 10 °C 35 . handling time shorter at higher 25 °C, 30 males. In contrast potential for prey mortality attack rate ratio indicating efficiency temperatures. strongly impacted predators’ as accelerated predator action under increased consumption. However did not change with warmer but varied changing stages from egg male.

Language: Английский

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