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  • 1
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    Shifts in dominance of benthic communities along a gradient of water temperature and turbidity in tropical coastal ecosystems (2024)
    In:  PeerJ vol. 12 no. e17132
    Details
    Publication Date: 2024-05-11
    Description: Tropical coastal benthic communities will change in species composition and relative dominance due to global (e.g., increasing water temperature) and local (e.g., increasing terrestrial influence due to land-based activity) stressors. This study aimed to gain insight into possible trajectories of coastal benthic assemblages in Raja Ampat, Indonesia, by studying coral reefs at varying distances from human activities and marine lakes with high turbidity in three temperature categories (〈31 °C, 31–32 °C, and 〉32 °C). The benthic community diversity and relative coverage of major benthic groups were quantified via replicate photo transects. The composition of benthic assemblages varied significantly among the reef and marine lake habitats. The marine lakes 〈31 °C contained hard coral, crustose coralline algae (CCA), and turf algae with coverages similar to those found in the coral reefs (17.4–18.8% hard coral, 3.5–26.3% CCA, and 15–15.5% turf algae, respectively), while the higher temperature marine lakes (31–32 °C and 〉32 °C) did not harbor hard coral or CCA. Benthic composition in the reefs was significantly influenced by geographic distance among sites but not by human activity or depth. Benthic composition in the marine lakes appeared to be structured by temperature, salinity, and degree of connection to the adjacent sea. Our results suggest that beyond a certain temperature (〉31 °C), benthic communities shift away from coral dominance, but new outcomes of assemblages can be highly distinct, with a possible varied dominance of macroalgae, benthic cyanobacterial mats, or filter feeders such as bivalves and tubeworms. This study illustrates the possible use of marine lake model systems to gain insight into shifts in the benthic community structure of tropical coastal ecosystems if hard corals are no longer dominant.
    Keywords: Benthic cover ; Biodiversity ; Coral reef ; Marine lake ; Anthropogenic pressures ; Raja ; Ampat (Indonesia)
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 2
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    Mollusc species response to drivers in space and time: Rise and demise of the unique Pontocaspian fauna (2020)
    Details
    Publication Date: 2024-01-12
    Description: The evolution of the Pontocaspian lakes and seas (Caspian Sea, Black Sea, Aral Sea) is characterised by major changes in water levels, which developed into a pulsating system of connected and isolated basins. During the late Quaternary (Late Pleistocene and Holocene), these basins have hosted a unique endemic biodiversity that experienced species turnover events. There are indications that the Pontocaspian species diversity is now in demise because of anthropogenic modifications of the ecosystem, such as habitat alteration, poaching, pollution and invasive species. Little data is available on faunal changes and resilience of Pontocaspian species to help discerning the effect of natural drivers and anthropogenic drivers on the endemic fauna, which is of direct relevance for conservation strategies. \nThis thesis aims to characterize species richness and abundance of fossil faunas to establish a baseline for comparison with the changing biodiversity of today. Mollusc species are used as the study group as they easily fossilize and are abundant in the geological record. They inform us about the composition of communities and how they change, and enable us to reconstruct environments (\xe2\x80\x98habitats\xe2\x80\x99). This is necessary in order to compare biodiversity through different time intervals and establish whether comparable habitats existed as those of today. A baseline of Pontocaspian mollusc faunas was achieved by analysing snapshots from the Caspian Sea basin and the Black Sea basin. Caspian mollusc assemblages are analysed from late Pleistocene (corresponding to the late Khazarian, Hyrcanian, early Khvalynian and late Khvalynian regional stages) and pre-20th century Holocene (Novocaspian) assemblages. Black Sea assemblages from the late Neoeuxinian and late Holocene are described. They are both compared with modern day assemblages. \nThis study shows clear indications of a Pontocaspian mollusc diversity crisis. Overall, in the 20th\xe2\x80\x9321st century, Pontocaspian molluscs have experienced a severe decline in species richness and abundance: a strong turnover towards invasive species in the Caspian basin, a strong habitat decline in parts of the Black Sea basin and a total obliteration in the Aral basin. The late Quaternary mollusc fauna snapshots demonstrate that endemic species dominated the Caspian communities with minor contributions of native species until the late Holocene. The Pontocaspian mollusc species richness in the Caspian Sea basin is higher than in the Pontocaspian habitats of the Black Sea basin, or the Aral Sea basin. Throughout the Late Quaternary, the strong natural fluctuations of Caspian Sea level affected shallow water bivalve species of the genus Didacna, but barely changed the overall composition of the mollusc faunas. Late Quaternary mollusc fauna snapshots of the Black Sea basin show very little change in the Pontocaspian species community since humans impacted the habitats. However, the Black Sea Pontocaspian mollusc communities are currently under severe threat of habitat deterioration and destruction. \nThis research indicates that the Caspian Sea could act as a source for Pontocaspian biota, hence conservation efforts are imperative there. The deeper parts (〉50 m water depth) possibly present a (partial) refuge, and urgent research is required to assess these habitats and their faunas. Future research should focus on improving the taxonomic framework to elucidate the identity of some Pontocaspian cryptic and sister species. We need more distribution and ecological data of current Pontocaspian species and more detailed biodiversity time series coupled with detailed environmental proxies to assess the nature of the Pontocaspian biodiversity crisis more comprehensively and plan conservation actions accordingly.
    Keywords: Pontocaspian ; Biodiversity ; Quaternary ; Mollusca ; Marie Sk\xc5\x82odowska-Curie Actions ; Action: H2020-MSCA-ITN-2014 ; PRIDE ; Grant agreement no: 642973
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/doctoralThesis
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  • 3
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    Patterns of coral species richness and reef connectivity in Malaysia (2016)
    Details
    Publication Date: 2024-01-12
    Description: Much remains to be discovered about the biodiversity of coral reefs in Malaysia, making this area a priority for coral reef research. This thesis aims to provide insights into the patterns of reef coral species richness and the degree of reef connectivity across Malaysia. For the species richness study, the scleractinian coral families Fungiidae, Agariciidae and Euphylliidae were selected as model taxa. Species of these families have a wide geographical distribution in the Indo-Pacific, and they can be found in a large range of reef habitats, from shallow coastal reefs to deep offshore environments. The connectivity of reefs were inferred by examining the genetic population structures of three reef invertebrate species, the mushroom coral Heliofungia actiniformis, the blue seastar Linckia laevigata, and the boring giant clam Tridacna crocea. Data on coral species and specimens of reef invertebrates were collected from reef areas along a geographical range from east to west Malaysia. Reef coral species richness patterns were revealed and indicated common and rare species, as well as potential endemics. Factors to explain the population structure and connectivity patterns across Malaysia are discussed. The findings in this thesis may be relevant for conservation and management of coral reef areas in Malaysia.
    Keywords: coral ; reef ; Malaysia ; Biodiversity ; Coral Triangle ; Population genetics ; Reef invertebrates ; Species distribution ; Scleractinia
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/doctoralThesis
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  • 4
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    The Emerging Field of Geoethics (2018)
    John Wiley & Sons, Inc. - American Geophysical Union
    Details
    Publication Date: 2019-03-27
    Description: The geosciences need practitioners who possess an ethical conscience and the desire to act responsibly. Ethically responsible geoscientists will achieve success and satisfaction by carrying out excellent research and professional activities, and by maintaining honest and open collaborations with colleagues. Such individuals will be able to contribute to building a resilient society, be better prepared to face global economic and environmental challenges and be willing to take concrete actions for the conservation of the geo‐environment. Geoethics provides ethical, social, and cultural values for the scientific community and for society as a whole. Geoethics represents a new vision of a world in which it is possible to maintain a more balanced relationship between humans and nature, considering modern economic and social development expectations. This chapter illustrates some aspects of geoethics, provides an overview of its basic values and themes, and highlights prominent global issues that involve geoethics, including climate change, geo‐risks, land management, exploitation of geo‐resources, and sustainability. The International Association for Promoting Geoethics (IAPG) provides a multidisciplinary platform for discussion, a place where multidisciplinary collaboration can strengthen the development of geoethics from a scientific and philosophical perspective, in order to better introduce geoethical values into society.
    Description: Published
    Description: 175-212
    Description: 4SR TERREMOTI - Preparazione alla comunicazione in emergenza
    Description: 6SR VULCANI – Servizi e ricerca per la società
    Description: 7SR AMBIENTE – Servizi e ricerca per la società
    Description: 1TM. Formazione
    Description: 2TM. Divulgazione Scientifica
    Description: 3TM. Comunicazione
    Keywords: geoethics ; geoeducation ; geoscience communication ; georisks ; geo-resources ; research integrity ; geoethical promise ; professionalism ; responsibility ; society ; 05.03. Educational, History of Science, Public Issues ; 05.09. Miscellaneous ; 05.08. Risk ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 5
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    Unforeseen importance of historical collections as baselines to determine biotic change of coral reefs: the Saba Bank case (2011)
    In:  Marine Ecology vol. 32, pp. 135-141
    Details
    Publication Date: 2024-01-12
    Description: Botanical and zoological collections may serve as archives for historical ecological research on the effects of global change and human impact on coral reef biota. Museum collections may harbour old specimens of reef-dwelling species that have become locally extinct. Such collections also help to determine whether early records of invasive species can be obtained from times when they were not yet recognized as such. A case study (2006) involving Saba Bank, Caribbean Netherlands (former Netherlands Antilles), suggests that the coral reef fauna here may have become impoverished when compared with data obtained during an earlier expedition in 1972. However, the 1972 sampling may have been incomplete, as it was performed by professional divers who were not trained taxonomists, whereas the collecting in 2006 was done by experienced marine biologists who knew the taxa they were sampling. As Saba Bank has been under stress due to the anchoring of large vessels, and invasive species have been a potential threat as well, future studies are needed to obtain more insights into the changing reef biota of Saba Bank. Using this Saba Bank example, we want to address the importance of natural history collections as reservoirs of valuable data relevant to coral reef biodiversity studies in a time of global change. As such, these collections are still underexplored and underexploited.
    Keywords: Biodiversity ; global change biology ; historical ecology ; invasive species ; local extinctions ; natural history museums
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 6
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    Integrative Post-event Impact Assessment Framework for Volcanic Eruptions: A Disaster Forensic Investigation of the 2011–2012 Eruption of the Cordón Caulle Volcano (Chile) (2021)
    Frontiers
    Details
    Publication Date: 2021-07-07
    Description: Understanding the complexity of future volcanic impacts that can be potentially induced by the large variability of volcanic hazards and the multiple dimensions of vulnerability of the increasingly interdependent and interconnected societies, requires an in-depth analysis of past events. A structured and inclusive post-event impact assessment framework is proposed and applied for the evaluation of damage and disruption on critical infrastructures caused by the eruption of the Cordón Caulle volcano (Chile) in 2011–2012. This framework is built on the forensic analysis of disasters combined with the techniques of the root cause analysis that converge in a bow-tie tool. It consists of a fault tree connected to subsequent event trees to describe the causal order of impacts. Considering the physical and systemic dimensions of vulnerability, four orders of impact have been identified: i) the first order refers to the physical damage or the primary impact on a component of the critical infrastructure; ii) the second order refers to the loss of functionality in the system due to a physical damage on key components of the system; iii) the third order refers to the systemic impact due to the interdependency and connectivity among different critical infrastructures; and iv) a higher order is related to the consequences on the main economic sectors and to social disruption that can activate an overall damage to the economy of the country or countries affected. Our study in the Argentinian Patagonia shows that the long-lasting impact of the 2011–2012 Cordón Caulle eruption is mostly due to a secondary hazard (i.e., wind remobilisation of ash), which exacerbated the primary impact affecting significantly larger areas and for longer time with respect to primary tephra deposition. In addition, systemic vulnerability, particularly the intrinsic dependencies within and among systems, played a major role in the cascading impact of the analysed communities.
    Description: This study was supported by the Swiss National Science Foundation (200021–163152).
    Description: Published
    Description: 645945
    Description: 6V. Pericolosità vulcanica e contributi alla stima del rischio
    Description: JCR Journal
    Keywords: impact assessment ; volcanic eruptions ; forensic analysis ; systemic vulnerability ; cascading effects ; bow-tie approach ; 04.08. Volcanology ; 05.08. Risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 7
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    A scoping review of seismic risk communication in Europe (2024)
    Frontiers S.A.
    Details
    Publication Date: 2024-01-25
    Description: Although earthquakes are a threat in many countries and considerable resources have been invested in safety regulations, communities at risk often lack awareness and preparedness. Risk communication is a key tool for building resilient communities, raising awareness, and increasing preparedness. Over the past 2 decades, seismic risk communication has evolved significantly. This has led to a reorientation from a predominantly “one-way”, top-down communication model to the promotion of new models in which people, their needs, and their participation in disaster risk management are central elements. The 2015–2030 Sendai Framework recommendations, recent disaster experiences and research have highlighted that new models can improve communication effectiveness. In this paper, we critically explore this transition by conducting a scoping review (n=109 publications) of seismic risk communication in Europe. We analyse the approaches, messages, tools, and channels used for seismic risk communication and how they have changed over time. The results reveal that the stated goals of seismic risk communication are, in decreasing order, to share information, raise awareness, change behaviours/beliefs, and increase preparedness. Pupils, students, and citizens are the primary recipients of communication activities. Over the years, two trends have emerged. First, “two-way”, transdisciplinary and bottom-up communication models prevailed over the “one-way” model. Second, communication aimed more at promoting proactive behaviours than just informing the public. Face-to-face, hands-on activities, and serious games are key tools to engage with the public. The results also reveal the emerging role of social media to target different audiences/social groups. Strikingly, only one-fifth of the analysed publications explicitly build on or tests risk communication theories. Future research could focus on comparing practices across countries and risks (e.g., earthquakes and floods) and on innovating communication theories and methodologies, especially by incorporating the role of information technologies and social media.
    Description: Published
    Description: 1155576
    Description: OST2 Deformazione e Hazard sismico e da maremoto
    Description: JCR Journal
    Keywords: Seismic risk ; communication ; Europe ; scoping review ; 05.08. Risk ; 04.06. Seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 8
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    Biodiversity on the marginal coral reefs of South Africa: What does the future hold? (2003)
    In:  Zoologische Verhandelingen vol. 345, pp. 387-400
    Details
    Publication Date: 2024-01-12
    Description: Southern African coral communities form a continuum from the more typical, accretive reefs in the tropics of Mozambique to the marginal, southernmost African distribution of this fauna in KwaZulu- Natal. While the latter are limited in size, they are gaining increasing attention as they provide a model for the study of many of the stresses to which these valuable systems are globally being subjected. Soft coral cover, comprising relatively few species, exceeds that of scleractinians over much of the southern reefs, and the coral communities attain a high biodiversity at this latitude on the East African coast. A long-term monitoring programme has revealed small yet significant changes in community structure on the reefs in recent years, concurrent with consistent increases in mean and maximum temperature. Insignificant bleaching was encountered during the 1998 ENSO event, unlike elsewhere in East Africa, but quantifiable bleaching occurred during an extended period of warming in 2000. Outbreaks of crown-of-thorns starfish (COTS) have caused longer-term changes in isolated areas. A study of coral larval dispersal and recruitment has been initiated to establish the capacity of the reefs to recover from the latter form of disturbance. The marginal nature of the reefs is further manifested by corals that generate aseasonal and atypical natural products and have a reproductive pattern that conforms with the pattern found on marginal reefs in western Australia. Calcium deposition on the reefs is also low due to physico-chemical factors that are related to latitude. Published projections on the long-term effects of climate change indicate that more reefs will become marginal as a result of global warming. Current monitoring on the South African reefs is being expanded to investigate the extent to which they will elucidate the future of more typical reefs.
    Keywords: Biodiversity ; coral reefs ; South Africa
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 9
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    Did you know? Genere e rischi naturali (2022)
    Cnr Edizioni
    Details
    Publication Date: 2022-07-14
    Description: L’articolo prende l’avvio da una rassegna di articoli scientifici sui rischi naturali fatta per comprendere quanto e come il genere entri negli studi attuali. Sono illustrati studi di caso in cui la variabile genere compare nell’impatto sociale dei fenomeni, ad esempio per gli effetti sulla salute e per la percezione dei rischi relativi; viene seguita la classificazione in rischi di natura geofisica (terremoti, eruzioni, tsunami), idrogeologica (inondazioni, frane), climatologica (siccità, incendi); meteorologica (tempeste, temperature estreme); sono presenti esempi non esaustivi ma significativi su scala globale (mondo) e locale (Italia). Infine, vengono proposte considerazioni per futuri sviluppi.
    Description: Published
    Description: 93-103
    Description: 2TM. Divulgazione Scientifica
    Keywords: genere ; rischi naturali ; gender ; natural hazard ; 05.06. Methods ; 05.08. Risk ; 05.03. Educational, History of Science, Public Issues ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 10
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    Handbook on Convention on Biological Diversity (CBD) for small-scale fishing communities (2022)
    International Collective in Support of Fishworkers (ICSF) | The Netherlands
    Details
    Publication Date: 2022-08-08
    Description: This Handbook, developed by ICSF and Crocevia, describes the components of the Convention on Biological Diversity (CBD) and provides an overview of its programmes, targets and commitments on aquatic, marine and coastal biodiversity. Using illustrative examples, the Handbook aims to help fishing communities and their supporters to understand the important links between biodiversity and human rights in small-scale fisheries. It also recommends actions for these stakeholders to negotiate a just and equitable outcome from international and national processes to put biodiversity on a path to recovery for the benefit of people and the planet. This handbook is useful for fishworker organizations, civil society organizations and others working on issues related to biodiversity conservation and sustainable use, in line with the FAO Small-Scale Fisheries Guidelines and the Sustainable Development Goals.
    Description: Published
    Description: Refereed
    Keywords: Convention on Biological Diversity (CBD) ; Biodiversity ; Small-scale Fisheries ; Fishing Communities ; Coastal Biodiversity ; Human Rights ; SDG ; Sustainable Development ; SSF Guidelines ; Sustainable Use ; Conservation ; Fishworker Organizations ; CSO
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings
    Format: 126pp.
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