On the brink of explosion? Identifying the source and potential spread of introduced Zosterops white-eyes in North America

Biological Invasions, Год журнала: 2024, Номер 26(5), С. 1615 - 1639

Опубликована: Март 2, 2024

Язык: Английский

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Alien range size, habitat breadth, origin location, and domestication of alien species matter to their impact risks

Integrative Zoology, Год журнала: 2024, Номер unknown

Опубликована: Май 17, 2024

Abstract Invasive alien species are a major driver of biodiversity loss. Currently, the process biological invasions is experiencing constant acceleration, foreshadowing future increase in threat posed by invasive to global biodiversity. Therefore, it necessary assess impact risks and related factors. Here, we constructed dataset negative environmental events evaluate species. We collected information on 1071 established terrestrial vertebrates then gathered impacts for 108 those Generalized linear mixed‐effects model phylogenetic generalized least‐squares regression were used examine characteristic (including life‐history traits, characteristics distribution, introduction event characteristics) correlates species’ at scale (mammals, birds, reptiles amphibians). Our results showed that total 3158 reported harmful across 71 countries worldwide. Factors associated with varied slightly among taxa, but range size, habitat breadth, origin location, domestication significantly correlated risks. study aims identify high‐impact facilitate urgent assessment protect local ecological environment

Язык: Английский

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Anthropogenic disturbance has altered the habitat of two Azorean endemic coastal plants

BMC Ecology and Evolution, Год журнала: 2024, Номер 24(1)

Опубликована: Авг. 20, 2024

Abstract Background Anthropogenic threats are causing alteration of coastal areas worldwide. Most the biodiversity is endangered, taking a particular toll on island ecosystems, like Azores. To better understand biotic and abiotic factors constraining distribution conservation status two endemic plants, Azorina vidalii (Campanulaceae) Lotus azoricus (Fabaceae), we performed global survey plant communities in archipelago, also covering environmental descriptors, natural anthropogenic threats. Moreover, revised their IUCN estimated population fractions within protected areas. Results Non-indigenous plants were commonly found plots with or without target endemics, contributing to absence well-defined communities. Nonetheless, indigenous taxa occurred at L. . With larger area occurrence, A. ecological niche differed from that , latter being restricted dry rocky sea cliffs, mostly Santa Maria Island. Besides presence invasive signs habitat destruction, trampling grazing, threats, such as erosion, observed. Conclusions Occurrence data indicated an endangered for both species, although this would change critically when using smaller-sized occurrence cells. Both species threatened since very narrow vegetation belt, strongly limited by influence human pressure, frequent plants. While focusing our study allowed broader view impact disturbance Azorean

Язык: Английский

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Do Native and Alien Species Differ in Their Ecological Strategies? A Test with Woody Plants in Tropical Rainforests on Réunion Island (Mascarene Archipelago, Indian Ocean)

Plants, Год журнала: 2023, Номер 12(23), С. 3990 - 3990

Опубликована: Ноя. 27, 2023

Understanding the mechanisms of biological invasions (e.g., competitive exclusion) is a key conservation challenge, especially on islands. Many have been tested by comparing characteristics native and alien species, but few studies considered ecological strategies. Here we aim at ability, stress tolerance, ruderalism (CSR) trees in tropical rainforests Réunion Island. A total sixteen 100 m2 plots (eight ‘near-trail’ eight ‘off-trail’, less disturbed sites) were established over 2100 m elevational gradient. Three traits measured 1093 leaves from 237 trees: leaf area, dry matter content specific area. They converted into CSR score assigned to each 80 surveyed tree species (70 10 alien) using ‘Stratefy’ ordination approach. C scores increased with basal area S elevation, R not higher along trail, thus only partially validating Stratefy. Native had similar CS strategies, challenging invasion hypotheses predicting difference strategies rather demonstrating importance environmental filtering. However, other differences falling outside theory may also explain success Réunion.

Язык: Английский

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A test of island plant syndromes using resource‐use traits

Journal of Systematics and Evolution, Год журнала: 2023, Номер 62(2), С. 233 - 241

Опубликована: Окт. 29, 2023

Abstract Despite representing a fraction of the global terrestrial surface area, oceanic islands are disproportionately diverse in species, resulting from high rates endemicity. Island plants thought to share unique phenotype—referred as an island syndrome—which is be driven by convergent evolution response selection shared abiotic and biotic factors. One aspect plant syndrome that has received relatively little research focus expected have converged on conservative resource use associated with slow growth weak competitive abilities. Here we tested whether native, woody Hawaiian species phenotypically distinct—with more resource‐conservative leaf traits—compared globally distributed sample continental species. Using archipelago‐wide trait data set, detected average, native had lower nutrient concentrations overall, at mass per but no other phenotypic differences compared plants. There was also considerable overlap spaces Our findings indicate for traits not present flora, can demonstrate extensive variation their resource‐use strategies, scale comparable worldwide.

Язык: Английский

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Why studying the response of trait coordination to insularity matters?

Journal of Biogeography, Год журнала: 2023, Номер 51(9), С. 1587 - 1595

Опубликована: Авг. 25, 2023

Abstract Functional island biogeography can provide eco–evolutionary insights into which main drivers contribute to shaping the distribution of organisms' forms and functions on islands. It does so by examining trait patterns. As a result, traits are increasingly studied islands, either along insularity gradients or comparing patterns versus mainland biota. So far, functional has investigated trends values (i.e., average, diversity), whereas coordination between pairs remains unexplored gradients. Yet, analyses constitute foundational tool detect spectra strategies organisms. In this perspective, we set out offer conceptual analytical framework that should facilitate inclusion co–variation both at intra– interspecific level) in biogeography. We illustrate, with case study focused persistence edaphic plant specialists, what type be gained response variation insularity. asked two questions, namely whether, increasing insularity, strength relationship ( R 2 ) increases (Q1), direction (slope) decreases (Q2). positively answered our research lines evidence suggesting selective “forcing” towards tighter more strongly coordinated trade‐offs infer ecological biogeographic could behind observed patterns, while acknowledging possible drawbacks. conclude identifying three take–home messages related future directions for integrating further advance field.

Язык: Английский

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Adaptive responses to living in stressful habitats: Do invasive and native plant populations use different strategies?

Ecology Letters, Год журнала: 2024, Номер 27(4)

Опубликована: Апрель 1, 2024

Abstract Plants inhabit stressful environments characterized by a variety of stressors, including mine sites, mountains, deserts, and high latitudes. Populations from reference (non‐stressful) sites often have performance differences. However, while invasive native species may respond differently to environments, there is limited understanding the patterns in reaction norms populations these sites. Here, we use phylogenetically controlled meta‐analysis assess under stress non‐stress conditions. We ask whether natives invasives differ magnitude lowered conditions if they vary degree advantage stress. also assessed distinctions with intensity. Our findings revealed that not only greater adaptive advantages but more reductions than invasives. very had efficient adaptations, costs increased intensity only. Overall, results support notion adaptation frequently costless. Reproductive output was most closely associated benefits. study strategies used plants conditions, thereby providing important insights into limitations extreme

Язык: Английский

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Vulnerability and resilience of rainforests to plant invasions in a tropical island of the South Pacific: a sixteen-year survey

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Сен. 27, 2024

Island biodiversity is considered to be particularly vulnerable biological invasions. However, the direct impacts of invasive alien plants on native and endemic flora are often difficult assess. Indeed, invasion by woody species a relatively slow process, natural or anthropogenic disturbances that favor some plant invaders, also contribute loss, might act as confounding factors. Hence, we conducted long-term monitoring rainforest composition structure in small tropical high volcanic island Moorea (French Polynesia, South Pacific) over 16-year (2006–2022) period without any major disturbance. All endemic, with stem ≥ 1 cm diameter were identified measured 4-year frequency ten 20 m × plots. The variation richness, Shannon diversity, Pielou evenness abundance time was analyzed using linear mixed-effects models identities plots random Results revealed an increase number stems (+ 50% 16 years), especially two most common trees, Miconia calvescens (Melastomataceae) Spathodea campanulata (Bignoniaceae). In contrast, found decrease richness (from 28 19) (-20% stems) species, higher-elevation Three remained stable terms invasions according indices, persisted time. Although continuous decline including extirpation, observed, our results suggest relative resilience certain forest types associated communities Efforts control should therefore target habitats.

Язык: Английский

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The impact of invasive alien species on threatened and endangered species: A geographic perspective

Wildlife Society Bulletin, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 6, 2024

Abstract Invasive alien species (IAS) are one of the most serious threats to global biodiversity and leading causes federal protection required for native under United States Endangered Species Act (ESA). Our goal was document how IAS impact threatened endangered (T&ES) ESA improve recovery efforts. We reviewed Federal Register listing decisions 1,545 T&ES listed found that 58% were impacted by IAS. Pacific Island (97%) face greater from compared Mainland (38%) Atlantic (22%), but number impacting has increased over time in all 3 geographic areas, except animals on Islands. On Islands, we through adverse habitat modification competition, mainly invasive plants. Negative interactions caused fish plants, while Islands they mammals The causing greatest negative included rats ( Rattus ), wild pigs Sus goats Capra (e.g., Lepomis Micropterus various genera plants Schinus , Rubus Psidium ). Based our findings, immediate actions needed protect U.S. IAS, especially Such management include eradication restoration habitat, development robust policies aim prevent further spread establishment effective decision support tools. These will require coordinated leadership T&ES, given synergistic impacts international trade climate change.

Язык: Английский

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