National fruit fly surveillance programme

This annual report summarizes the results of the 2021-2022 National Fruit Fly Surveillance Programme (NFFSP) in New Zealand. The report shows that despite the challenges posed by the Covid-19 pandemic, the programme was successful in meeting its objectives. A total of 139 individual trap runs were used to service the 7878 Lynfield traps in use, with no new traps established but several relocated to improve coverage. From the 2587 trap-run submissions, a total of 8183 vials were submitted, and no exotic fruit flies were detected. Thirteen samples collected in fruit-fly traps were categorized as "specimens of interest," while 9 specimens were submitted by trappers as passive surveillance samples. All lure batches tested during the season met the required standard, and field checks were made to ensure that all lures sent to trappers had been calibrated within the last 12 months. The report concludes that the trapping network was effective in supporting New Zealand's claims of area freedom.

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.

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.

Dispersal of bacteria and stimulation of permafrost decomposition by Collembola

Contrary to most soils, permafrost soils have the atypical feature of being almost entirely deprived of soil fauna. Abiotic constraints on the fate of permafrost carbon after thawing are increasingly understood, but biotic constraints remain scarcely investigated. Incubation studies, essential to estimate effects of permafrost thaw on carbon cycling, typically measure the consequences of permafrost thaw in isolation from the topsoil and thus do not account for the effects of altered biotic interactions because of e.g. colonization by soil fauna. Microarthropods facilitate the dispersal of microorganisms in soil, both on their cuticle (ectozoochory) and through their digestive tract (endozoochory), which may be particularly important in permafrost soils, considering that microbial community composition can strongly constrain permafrost biogeochemical processes.Here we tested how a model species of microarthropod (the CollembolaFolsomia candida) affected aerobic CO2 production of permafrost soil over a 25 d incubation. By using Collembola stock cultures grown on permafrost soil or on an arctic topsoil, we aimed to assess the potential for endo- and ectozoochory of soil bacteria, while cultures grown on gypsum and sprayed with soil suspensions would allow the observation of only ectozoochory.The presence of Collembola introduced bacterial amplicon sequence variants (ASVs) absent in the no-Collembola control, regardless of their microbiome manipulation, when considering presence–absence metrics (unweighted UniFrac metrics), which resulted in increased species richness. However, these introduced ASVs did not induce changes in bacterial community composition as a whole (accounting for relative abundances, weighted UniFrac), which might only become detectable in the longer term.CO2 production was increased by 25.85 % in the presence of Collembola, about half of which could be attributed to Collembola respiration based on respiration rates measured in the absence of soil. We argue that the rest of the CO2 being respired can be considered a priming effect of the presence of Collembola, i.e. a stimulation of permafrost CO2 production in the presence of active microarthropod decomposers. Overall, our findings underline the importance of biotic interactions in permafrost biogeochemical processes and the need to explore the additive or interactive effects of other soil food web groups of which permafrost soils are deprived.

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.

Can classic biological invasion hypotheses be applied to reported cases of non-native terrestrial species in the Maritime Antarctic?

Understanding the success factors underlying each step in the process of biological invasion provides a robust foundation upon which to develop appropriate biosecurity measures. Insights into the processes occurring can be gained through clarifying the circumstances applying to non-native species that have arrived, established and, in some cases, successfully spread in terrestrial Antarctica. To date, examples include a small number of vascular plants and a greater diversity of invertebrates (including Diptera, Collembola, Acari and Oligochaeta), which share features of pre-adaptation to the environmental stresses experienced in Antarctica. In this synthesis, we examine multiple classic invasion science hypotheses that are widely considered to have relevance in invasion ecology and assess their utility in understanding the different invasion histories so far documented in the continent. All of these existing hypotheses appear relevant to some degree in explaining invasion processes in Antarctica. They are also relevant in understanding failed invasions and identifying barriers to invasion. However, the limited number of cases currently available constrains the possibility of establishing patterns and processes. To conclude, we discuss several new and emerging confirmatory methods as relevant tools to test and compare these hypotheses given the availability of appropriate sample sizes in the future.

Quarterly report of investigations of suspected exotic diseases: July to September 2021

Exotic pest and disease investigations are managed and reported by the Ministry for Primary Industries' (MPI's) Diagnostic and Surveillance Directorate. This article presents a summary of investigations of suspect exotic and emerging pests and diseases in New Zealand during the period from July to September 2021.

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.

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.