Assessing the Spontaneous Spread of Climate-Adapted Woody Plants in an Extensively Maintained Collection Garden

Climate change may strongly modify the habitat conditions for many woody plant species. Some species could disappear from their natural habitats and become endangered, while others could adapt well to the changed environmental conditions and continue to survive successfully or even proliferate more easily. A similar process can occur within the artificial urban environment as the hitherto popularly planted urban trees may suffer from the extremities of the urban climate. However, among the planted taxa, there are species that spread spontaneously and appear as weeds in extensively managed gardens. In our study, we evaluated the native and non-native species involved in spontaneous spreading in the institutional garden of Buda Arboretum (Budapest) during the COVID-19 period in 2020–2021 when entry was prohibited, and maintenance went on in a restricted, minimal level. We investigated the correlation between spontaneously settling and planted individuals, and then performed multivariate analyses for native and non-native spreading plants for spatial and quantitative data. During our studies, we observed the spontaneous spreading of 114 woody species, of which 38 are native and 76 are non-native. Taking the total number of individuals into account, we found that, in addition to the 2653 woody species planted, a further 7087 spontaneously emerged weeds developed, which creates an additional task in the maintenance. © 2023 by the authors.

Feral American mink Neogale vison continues to expand its European range: time to harmonise population monitoring and coordinate control

The American mink Neogale vison is an invasive alien species in Europe that threatens endemic biodiversity and can transmit zoonotic diseases, including the SARS-CoV-2 virus. The last attempt to map the geographic range of this species in Europe, at continental scale, dates back to 2007. We aimed to update the distribution map of the feral American mink and assess its temporal trends. The information we collected was critically analysed with the aim of improving future monitoring protocols and data collection. We gathered and standardised data from 34 databases, covering 32 countries. Through 3 five-year periods from 2007 to 2021, changes in range size, hunting bags and capture statistics were analysed. We also reviewed the current situation of mink farming in the different European countries and recorded population control schemes. The American mink is now widespread in the Baltic States, France, Germany, Iceland, Ireland, Poland, Scandinavia, Spain and the UK. The species is reported to be absent in some areas (e.g. parts of the UK, Iceland and Norway). Data are deficient for several countries, mainly in south-eastern Europe. These findings indicate that, during the last 15 years, the species has continued to spread across the continent, increasing its potential extent of occurrence in most countries. Our effort to collect and harmonise data across international borders highlighted information gaps and heterogeneity in data quality. Updated distribution data on the species provided here will aid risk assessment and risk management policies. These actions require a coordinated effort for population monitoring at continental level. Monitoring effort and data collection should be intensified in south-eastern Europe to improve data on the current distribution of this invasive species. © 2023 The Authors. Mammal Review published by Mammal Society and John Wiley & Sons Ltd.

Notes on the Prairie Nymph, Herbertia lahue ssp. caerulea, (Iridaceae) at Vicksburg Military National Military Park, Mississippi

The prairie nymph, Herbertia lahue ssp. caerula, is a critically imperiled grassland plant in Mississippi. A large population of the prairie nymph occurs at the Vicksburg National Military Park. This population of prairie nymph occurs in a managed anthropogenic grassland with a host of associated native and exotic species. With the assistance of National Park Service staff an experiment investigating the effects of their mowing and a study of the growing conditions and pollinators of the plant was initiated. The mowing experiment was abandoned after two years because of the COVID-19 pandemic and yielded no significant results. Here we report on the growing conditions and associated species. The syrphid fly, Toxomerus marginatus, was observed to be a frequent flower visitor. © Copyright 2022 Southern Appalachian Botanical Society.

Leveraging federalism for flexible and robust management of social-ecological systems

Managing social-ecological systems (SES) requires balancing the need to tailor actions to local heterogeneity and the need to work over large areas to accommodate the extent of SES. This balance is particularly challenging for policy since the level of government where the policy is being developed determines the extent and resolution of action.We make the case for a new research agenda focused on ecological federalism that seeks to address this challenge by capitalizing on the flexibility afforded by a federalist system of governance. Ecological federalism synthesizes the environmental federalism literature from law and economics with relevant ecological and biological literature to address a fundamental question: What aspects of SES should be managed by federal governments and which should be allocated to decentralized state governments?This new research agenda considers the bio-geo-physical processes that characterize state-federal management tradeoffs for biodiversity conservation, resource management, infectious disease prevention, and invasive species control.Read the free Plain Language Summary for this article on the Journal blog.

The next frontier: assessing the feasibility of eradicating mammalian pests from Auckland Island. (Special Issue: Restoration of New Zealand subantarctic islands.)

Auckland Island, the fifth largest island in New Zealand, is the only island in New Zealand's subantarctic region where introduced mammalian pests remain (pigs, Sus scrofa;mice, Mus musculus;cats, Felis catus). The island has unique biodiversity and is a key site for progressing New Zealand's goal to be free of several introduced predators by 2050. Recent island eradication successes have rekindled interest in eradicating pests from Auckland Island, and for the first time considering all three pests in one project. Over a 3-year period, we tested the feasibility of eradicating pigs, mice and cats by looking at what it would take to succeed, rather than what we could practically deliver with the tools we currently have. We proposed adaptations to current methods and used an evidence-based approach by undertaking large-scale field trials to test uncertainties and emerging technologies in-situ. We gathered data and evaluated proposed methods against five established principles of eradication while considering the logistics and infrastructure requirements of the project. Eradicating pigs, mice and cats from Auckland Island is worthwhile and feasible but dependent on further development of emerging technologies and capabilities for efficient delivery with an acceptable level of risk. Three eradication operations are required with specific sequencing and timing, supported by initial establishment of infrastructure. The project needs a large investment spread over 8 to 10 years to yield permanent and internationally important benefits with low ongoing cost to sustain. The feasibility study exposed the project's scale and was used to inform decision makers, who postponed the work in 2020 in response to the economic impacts of COVID-19. The study focusses future preparations on identified planning issues and dependencies to progress project readiness in anticipation of it being launched when economic conditions allow.

Invasive Plant Relations in a Global Pandemic: Caring for a "Problematic Pesto".

In Spring 2020, amidst a COVID-19 state of emergency, the City of Toronto's Parks & Urban Forestry department posted signs in the city's remaining Black Oak Savannahs to announce the cancellation of the yearly 'prescribed burn' practice, citing fears it would exacerbate pandemic conditions. With this activity and other nature management events on hold, many invasive plants continued to establish and proliferate. This paper confronts dominant attitudes in invasion ecology with Indigenous epistemologies and ideas of transformative justice, asking what can be learned from building a relationship with a much-maligned invasive plant like garlic mustard. Written in isolation as the plant began to flower in the Black Oak savannahs and beyond, this paper situates the plant's abundance and gifts within pandemic-related 'cancelled care' and 'cultivation activism' as a means of exploring human-nature relations in the settler-colonial city. It also asks what transformative lessons garlic mustard can offer about precarity, non-linear temporalities, contamination, multispecies entanglements, and the impacts of colonial property regimes on possible relations. Highlighting the entanglements of historical and ongoing violences with invasion ecology, this paper presents 'caring for invasives' as a path toward more liveable futures.

Exotic animal cafés in Japan: A new fashion with potential implications for biodiversity, global health, and animal welfare

Wildlife trade is a multibillion-dollar industry and concerns not only the exploitation of animals for their body parts but is also largely fueled by the demand for exotic pets. We document, in Japan, a recent phenomenon closely related to the pet trade and rapidly spreading in Asia: the display of exotic animals in a café/bar context. We surveyed 142 exotic animal cafés (EACs) by visiting their website and/or social media accounts. We recorded every available exotic animal species, their status based on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species and Appendix according to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). We compared the CITES Appendix-listed species imported in Japan during 1975–2019 to the species present in EACs. Most EACs opened in major cities between 2015 and 2017 under the label "owl café.” We recorded 3793 individuals belonging to 419 different species in 137 EACs active in 2019. The most numerous exotic animals were birds (62% – owls 40%) but reptiles (21%), mammals (15%) and to a lesser extent, amphibians (2%) were also found. A total of 403 individuals belonged to 52 threatened species. The majority (60%) of the species identified were CITES-listed (Appendix I: 53 individuals, 9 species;Appendix II:2482 individuals, 235 species and Appendix III:16 individuals, 6 species). While most species present in EACs are mainly imported as "captive bred” in Japan, we found 30 species that were mainly imported as "wild-caught,” "ranched” or "farmed.” The increase of importations of owl species is concomitant with the openings of EACs, reflecting the demand for owls in Japan. We argue that these EACs promoted through social media: (1) might have consequences for biodiversity as they encourage the purchase of exotic animals and represent a pool of potentially invasive species with their pathogens;(2) present a risk of pathogen transmission due to frequent close interactions with consumers;and (3) raise serious concerns about animal welfare.

Impacts of aquatic plant invasions on tourism and recreation

The global coronavirus disease 2019 (COVID-19) pandemic changed the way we use our environments locally and nationally, with a dramatic increase in 'staycations' and uptake in recreational activities, particularly utilizing freshwater habitats. There is high demand for accessible, safe and aesthetically pleasing locations for engaging in a range of water-based activities, such as paddlesports, boating and angling. Fresh waters, and the ecosystem services they provide, have increasingly experienced pressure from a range of anthropogenic stressors, including invasive non-native species (INNS). Invasive aquatic plants have significant impacts on freshwater systems, often dominating local environments. They can limit access to and navigation in watercourses and affect other water-based activities, which has consequences for tourism and recreational use. Once introduced, invasive aquatic plants can rapidly establish and spread, therefore biosecurity is essential to minimize the risk of introduction and subsequent impacts and management costs. While many invasive aquatic plants are undesirable for recreation and tourism, pathways of invasion including water-based activities, such as on boating and angling equipment, can spread them. To minimize the impacts of invasive non-native plants felt by those that enjoy the use of freshwater environments for tourism and recreation, collective responsibility should be encouraged to prevent the spread and enhance the management of established invasive aquatic plant populations.

The next frontier: assessing the feasibility of eradicating mammalian pests from Auckland Island

Auckland Island, the fifth largest island in New Zealand, is the only island in New Zealand's subantarctic region where introduced mammalian pests remain (pigs, Sus scrofa;mice, Mus musculus;cats, Felis catus). The island has unique biodiversity and is a key site for progressing New Zealand's goal to be free of several introduced predators by 2050. Recent island eradication successes have rekindled interest in eradicating pests from Auckland Island, and for the first time considering all three pests in one project. Over a 3-year period, we tested the feasibility of eradicating pigs, mice and cats by looking at what it would take to succeed, rather than what we could practically deliver with the tools we currently have. We proposed adaptations to current methods and used an evidence-based approach by undertaking large-scale field trials to test uncertainties and emerging technologies in-situ. We gathered data and evaluated proposed methods against five established principles of eradication while considering the logistics and infrastructure requirements of the project. Eradicating pigs, mice and cats from Auckland Island is worthwhile and feasible but dependent on further development of emerging technologies and capabilities for efficient delivery with an acceptable level of risk. Three eradication operations are required with specific sequencing and timing, supported by initial establishment of infrastructure. The project needs a large investment spread over 8 to 10 years to yield permanent and internationally important benefits with low ongoing cost to sustain. The feasibility study exposed the project's scale and was used to inform decision makers, who postponed the work in 2020 in response to the economic impacts of COVID-19. The study focusses future preparations on identified planning issues and dependencies to progress project readiness in anticipation of it being launched when economic conditions allow. © 2022 New Zealand Ecological Society.

Q&A: Objective science news needed now more than ever

Speed read Smallholder farmers ‘absolutely critical’ in food security fight Invasive species biggest threat to biodiversity after habitat loss CABI programmes to focus on prediction, prevention The need for objective coverage of science is greater now than ever before, according to Daniel Elger, who took over last month as the chief executive of the Centre for Agriculture and Bioscience International (CABI, the parent organisation of SciDev.Net). If women farmers have access to the same resources as men, among smallholder farmers in particular, that would immediately reduce the number of hungry people worldwide by 150 million or so, which gives you an idea of some of the important social dimensions beyond food production. See PDF] When we think about the science base of the organisation now, we think about both natural sciences and social sciences, because so much of what we are trying to do is to achieve impact not only at the level of farmers being able to grow more crops and improve their productivity, but embedding that in positive broader social change, particularly in some of the really important, cross-cutting themes — climate, gender equity, and other themes that are crucial to our member countries.

A global perspective on the influence of the COVID-19 pandemic on freshwater fish biodiversity. (Special Issue: Conservation and ecological impacts of the COVID-19 pandemic.)

The COVID-19 global pandemic and resulting effects on the economy and society (e.g., sheltering-in-place, alterations in transportation, changes in consumer behaviour, loss of employment) have yielded some benefits and risks to biodiversity. Here, we considered the ways the COVID-19 pandemic has influenced (or may influence) freshwater fish biodiversity (e.g., richness, abundance). In many cases, we could only consider potential impacts using documented examples (often from the media) of likely changes, because anecdotal observations are still emerging and data-driven studies are yet to be completed or even undertaken. We evaluated the potential for the pandemic to either mitigate or amplify widely acknowledged, pre-existing threats to freshwater fish biodiversity (i.e., invasive species, pollution, fragmentation, flow alteration, habitat loss and alteration, climate change, exploitation). Indeed, we identified examples spanning the extremes of positive and negative outcomes for almost all known threats. We also considered the pandemic's impact on freshwater fisheries demand, assessment, research, compliance monitoring, and management interventions (e.g., restoration), with disruptions being experienced in all domains. Importantly, we provide a forward-looking synthesis that considers the potential mechanisms and pathways by which the consequences of the pandemic may positively and negatively impact freshwater fishes over the longer term. We conclude with a candid assessment of the current management and policy responses and the extent to which they ensure freshwater fish populations and biodiversity are conserved for human and aquatic ecosystem benefits in perpetuity.

Restricted human activities shift the foraging strategies of feral pigeons (Columba livia) and three other commensal bird species. (Special Issue: Conservation and ecological impacts of the COVID-19 pandemic.)

Invasive species are a growing concern with increasing global connectivity. Feral pigeons (Columba livia) are widespread and invasive, thus their effective control is of keen international interest. The COVID-19 pandemic has offered an unprecedented opportunity to investigate the impact of a nation-wide Circuit Breaker (restricted human activities) in Singapore on first, the abundance of the feral pigeons and three urban commensals-the Javan myna (Acridotheres javanicus), common myna (A. tristis), and house crow (Corvus splendens) in different food source types;and second, the activity budgets of feral pigeons. A significant and progressive decline in feral pigeon abundance was observed in open food centres and feeding hotspots after the Circuit Breaker was implemented. While the house crow and common myna were less affected, the Javan myna abundance increased moderately at refuse collection centres during the Circuit Breaker and decreased significantly in green spaces after the Circuit Breaker. Changes in food abundance could also predict changes in feral pigeon abundance and its effect was greatest in feeding hotspots. A greater proportion of feral pigeons was observed foraging and moving with a smaller proportion seen resting with probable consequences on their reproductive capacity. Our study also cautions against drawing inferences on biological responses due to similar social restrictions without careful consideration of other ecological factors, like average flock size and time of the day, which also affected the proportion of pigeons foraging on natural versus anthropogenic food. In summary, our results advocate a food limitation approach to control the feral pigeon populations.

Assessing Spread and Impacts of Non-native Plants from Highway Corridors in the Northwest Territories (NWT), Canada

Species invasions are recognized as one of the leading threats to biodiversity globally and have been associated with declines in native species and changes in ecosystem function, disturbance regimes, species community composition and structure, and species interactions. Invasions are often strongly associated with human disturbances and increased propagule pressure. Thus, transportation corridors like roads, which experience ongoing disturbance as well as potentially large numbers of unintentional introductions of non-native plant propagules due to vehicular traffic, are often key pathways for the introduction and spread of non-native species into remote areas. Additionally, spread of non-native plants away from these anthropogenically-disturbed corridors into natural areas, including into natural disturbances in particular, is increasingly being documented. Here, Singer discusses the spread and impact of non-native plants and distinguishes between the different selection factors operating at each stage of the invasion process.

Polysaccharide Stalks in Didymosphenia geminata Diatom: Real World Applications and Strategies to Combat Its Spread

Didymosphenia geminata is a species of freshwater diatom that is known as invasive and is propagating quickly around the world. While invasive species are generally considered a nuisance, this paper attempts to find useful applications for D. geminata in the biomedical field and wastewater remediation. Here, we highlight the polysaccharide-based stalks of D. geminata that enable versatile potential applications and uses as a biopolymer, in drug delivery and wound healing, and as biocompatible scaffolding in cell adhesion and proliferation. Furthermore, this review focuses on how the polysaccharide nature of stalks and their metal-adsorption capacity allows them to have excellent wastewater remediation potential. This work also aims to assess the economic impact of D. geminata, as an invasive species, on its immediate environment. Potential government measures and legislation are recommended to prevent the spread of D. geminata, emphasizing the importance of education and collaboration between stakeholders.

Telling the Wood from the Trees: Ranking a Tree Species List to Aid Urban Afforestation in the Amazon

The vast Amazonian biome still poses challenges for botanists seeking to know and recognize its plant diversity. Brazilian northern cities are expanding fast, without considering the regional biodiversity, and urban plantings of almost exclusively exotic species are taking place. It is paramount that the correct identity of such trees is ascertained before procurement of the seeds and young plants, as the use of popular names may lead to importation of plant material from elsewhere, with potential introduction of invasive species. The abundant local diversity also leads to the need to score the most suitable species within a given region. Following the preparation of authoritatively named floristic lists in Southeastern Pará state, we proceeded to score and rank the most suitable trees for urban planning using different characteristics such as size, ornamental value, ecologic role, resilience and known methods of propagation. From an initial 375 species list, 263 species were ranked according to their suitability for street and urban area plantings and visualized using a Venn diagram. A final list with the 49 of the highest-ranking species was further analysed regarding their pollination and phenology period and two types of dissimilarity analyses were provided to aid practitioners in matching and choosing groups of species. Different local vegetation types mean that similar floristic lists must be used to extract cohorts of suitable plants to increase the urban richness in the eight Brazilian states that are included in the Amazonian biome.

Ethnobotany in the Andes and the Amazon in a world of Nagoya Protocol and post SARS-CoV-2 pandemic

Plants provide humankind with our most basic resources — food, medicines, fiber, and a whole array of other useful products. Relatives of wild crops and traditional plant varieties have been the foundation of crop domestication, plant breeding, and indeed the whole of modern agriculture. Plants provide the molecular basis of many pharmaceuticals, as direct compounds or as molecular blueprints. Modern science has started to confirm that the distinction between nutrition and medicine is blurred. With economic development empowering a greater percentage of the world’s people, urban areas continuing to expand, and human populations projected to double in the next 50 years, it seems certain that natural resources will face increasing threat. Habitat loss, unsustainable extraction of plants, spread of invasive species, climate change, and other human activities will have tremendous impacts. In this overview, we assess the changes in ethnobotanical research in the Andes and Amazon in the last decades using the Chábobo Ethnobotany Project as an example for modern ethnobotanical research under Convention on Biological Diversity and the attached Nagoya Protocol, and reflect on the possibilities of using this model for future ethnobotanical studies in a post-SARS-CoV-2 world.Alternate :Les plantes fournissent à l’humanité nos ressources les plus élémentaires — nourriture, médicaments, fibres et toute une gamme d’autres produits utiles. Les parents des cultures sauvages et des variétés traditionnelles ont été à la base de la domestication des cultures, de la sélection végétale et, en fait. Les plantes fournissent la base moléculaire de nombreux produits pharmaceutiques, sous forme de composés directs ou de plans moléculaires. La science moderne commence à confirmer que la distinction entre nutrition et médecine est floue. Étant donné que le développement économique autonomise un plus grand pourcentage de la population mondiale, que les zones urbaines continuent de s’étendre et que la population humaine devrait doubler au cours des 50 prochaines années, il semble certain que les ressources naturelles seront de plus en plus menacées. La perte d’habitat, l’extraction non durable de plantes, la propagation d’espèces envahissantes, le changement climatique et d’autres activités humaines auront un impact considérable. Les espèces végétales seront perdues, la diversité génétique des espèces survivantes sera diminuée et les connaissances traditionnelles associées à l’utilisation des plantes seront érodées. Dans cet aperçu, nous évaluons les changements dans la recherche ethnobotanique dans les Andes et l’Amazonie au cours des dernières décennies en utilisant le Projet Ethnobotanique Chábobo comme exemple pour la recherche ethnobotanique moderne dans le cadre de la Convention sur la diversité biologique et du Protocole de Nagoya, et réfléchir aux possibilités d’utiliser ce modèle pour de futures études ethnobotaniques dans un monde SARS-CoV-2.

Hammerhead flatworms (Platyhelminthes, Geoplanidae, Bipaliinae): mitochondrial genomes and description of two new species from France, Italy, and Mayotte.

BACKGROUND: New records of alien land planarians are regularly reported worldwide, and some correspond to undescribed species of unknown geographic origin. The description of new species of land planarians (Geoplanidae) should classically be based on both external morphology and histology of anatomical structures, especially the copulatory organs, ideally with the addition of molecular data. METHODS: Here, we describe the morphology and reproductive anatomy of a species previously reported as Diversibipalium "black", and the morphology of a species previously reported as Diversibipalium "blue". Based on next generation sequencing, we obtained the complete mitogenome of five species of Bipaliinae, including these two species. RESULTS: The new species Humbertium covidum n. sp. (syn: Diversibipalium "black" of Justine et al., 2018) is formally described on the basis of morphology, histology and mitogenome, and is assigned to Humbertium on the basis of its reproductive anatomy. The type-locality is Casier, Italy, and other localities are in the Department of Pyrénées-Atlantiques, France; some published or unpublished records suggest that this species might also be present in Russia, China, and Japan. The mitogenomic polymorphism of two geographically distinct specimens (Italy vs France) is described; the cox1 gene displayed 2.25% difference. The new species Diversibipalium mayottensis n. sp. (syn: Diversibipalium "blue" of Justine et al., 2018) is formally described on the basis of external morphology and complete mitogenome and is assigned to Diversibipalium on the basis of an absence of information on its reproductive anatomy. The type- and only known locality is the island of Mayotte in the Mozambique Channel off Africa. Phylogenies of bipaliine geoplanids were constructed on the basis of SSU, LSU, mitochondrial proteins and concatenated sequences of cox1, SSU and LSU. In all four phylogenies, D. mayottensis was the sister-group to all the other bipaliines. With the exception of D. multilineatum which could not be circularised, the complete mitogenomes of B. kewense, B. vagum, B. adventitium, H. covidum and D. mayottensis were colinear. The 16S gene in all bipaliine species was problematic because usual tools were unable to locate its exact position. CONCLUSION: Next generation sequencing, which can provide complete mitochondrial genomes as well as traditionally used genes such as SSU, LSU and cox1, is a powerful tool for delineating and describing species of Bipaliinae when the reproductive structure cannot be studied, which is sometimes the case of asexually reproducing invasive species. The unexpected position of the new species D. mayottensis as sister-group to all other Bipaliinae in all phylogenetic analyses suggests that the species could belong to a new genus, yet to be described.

Facing the Forecaster’s Dilemma: Reflexivity in Ocean System Forecasting

Unlike atmospheric weather forecasting, ocean forecasting is often reflexive;for many applications, the forecast and its dissemination can change the outcome, and is in this way, a part of the system. Reflexivity has implications for several ocean forecasting applications, such as fisheries management, endangered species management, toxic and invasive species management, and community science. The field of ocean system forecasting is experiencing rapid growth, and there is an opportunity to add the reflexivity dynamic to the conventional approach taken from weather forecasting. Social science has grappled with reflexivity for decades and can offer a valuable perspective. Ocean forecasting is often iterative, thus it can also offer opportunities to advance the general understanding of reflexive prediction. In this paper, we present a basic theoretical skeleton for considering iterative reflexivity in an ocean forecasting context. It is possible to explore the reflexive dynamics because the prediction is iterative. The central problem amounts to a tension between providing a reliably accurate forecast and affecting a desired outcome via the forecast. These two objectives are not always compatible. We map a review of the literature onto relevant ecological scales that contextualize the role of reflexivity across a range of applications, from biogeochemical (e.g., hypoxia and harmful algal blooms) to endangered species management. Formulating reflexivity mathematically provides one explicit mechanism for integrating natural and social sciences. In the context of the Anthropocene ocean, reflexivity helps us understand whether forecasts are meant to mitigate and control environmental changes, or to adapt and respond within a changing system. By thinking about reflexivity as part of the foundation of ocean system forecasting, we hope to avoid some of the unintended consequences that can derail forecasting programs.

Lockdown policy effects on invasive species: a perspective. (Special Issue: Invasive alien species and biodiversity: impacts and management.)

Changes in human activities caused by the COVID-19 pandemic can have multiple effects on biodiversity but there is limited knowledge of how this can impact invasive alien species (IAS). Societal measures against the spread of COVID-19 can have both short-term and long-term consequences on IAS. In the short-term, reduced human disturbance on natural habitats can increase the activity of IAS and accelerate their spread. Furthermore, management agencies have reduced control activities, sometimes allowing IAS to thrive, and ongoing monitoring programs have been interrupted, hindering rapid identification and management of biological invasions. Long-term impacts could include global modifications to wildlife trade and increased releases of captive-bred species because of the fear of zoonotic diseases and also greater public awareness of the risks of pathogens being spread among animal populations. Long-term collection and sharing of data are crucial to modulate IAS management during and after the lockdowns.

Symbiosis and the Anthropocene.

Recent human activity has profoundly transformed Earth biomes on a scale and at rates that are unprecedented. Given the central role of symbioses in ecosystem processes, functions, and services throughout the Earth biosphere, the impacts of human-driven change on symbioses are critical to understand. Symbioses are not merely collections of organisms, but co-evolved partners that arise from the synergistic combination and action of different genetic programs. They function with varying degrees of permanence and selection as emergent units with substantial potential for combinatorial and evolutionary innovation in both structure and function. Following an articulation of operational definitions of symbiosis and related concepts and characteristics of the Anthropocene, we outline a basic typology of anthropogenic change (AC) and a conceptual framework for how AC might mechanistically impact symbioses with select case examples to highlight our perspective. We discuss surprising connections between symbiosis and the Anthropocene, suggesting ways in which new symbioses could arise due to AC, how symbioses could be agents of ecosystem change, and how symbioses, broadly defined, of humans and "farmed" organisms may have launched the Anthropocene. We conclude with reflections on the robustness of symbioses to AC and our perspective on the importance of symbioses as ecosystem keystones and the need to tackle anthropogenic challenges as wise and humble stewards embedded within the system.