In april 2022, the Dutch Caribbean Nature Alliance (DCNA), together with the University of Applied Sciences Van Hall Larenstein, hosted a sea urchin (Diadema Antillarum) restoration workshop on Saba. During the workshop experts and representatives from the Dutch Caribbean and Jamaica came together to join forces towards coral reef restoration. This workshop helped 21 coral experts from the Caribbean region and more than 65 online attendants, to obtain a comprehensive view of the overall situation of the Diadema sea urchin in the Caribbean, including the current die-off events and restoration techniques. Throughout the workshop important discussions took place to determine the next steps needed to mitigate the loss of Diadema sea urchins on a regional scale.
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Diadema sea-urchins play a vital role in maintaining a balanced coral reef ecosystem and their restoration is essential to assist recovery of the degraded coral reefs around Saba and St. Eustatius. A collaborative effort between University of Applied Sciences Van Hall Larenstein, WUR, STENAPA, CNSI and NIOZ studied settlement rates of sea-urchin larvae. The new findings provide insight into why the Diadema population has not been restored since the massive die-off in the mid 1980’s and are important for developing and implementing effective sea urchin restoration projects.
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That coral reefs are in decline worldwide, particularly in the Caribbean, will come as no surprise. This decades-long decline has reached a potential tipping point as the weight of the effects of climate change have come decidedly to bear on the planet’s most diverse marine ecosystem. Whether coral reefs can persist without restorative intervention is debatable, which has prompted a surge in coral reef restoration projects focusing primarily on the cultivation and transplantation of coral fragments onto degraded reefs. But that widespread approach does little to address the underlying causes of coral loss, one of which is the proliferation of macroalgae that are deleterious to corals. An emerging solution to this problem is the enhancement of herbivory on coral reefs through improved management of herbivores, artificial enhancement of herbivore settlement, or their mariculture and subsequent stocking. This review explores the nuances of the biology of well-studied Caribbean coral reef herbivores (fishes, sea urchins, and crabs) as it relates to their mariculture and investigates the promise of herbivore stocking onto coral reefs as a restoration strategy.
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Designs for improving energy efficiency in historical buildings are tailor made. For initiators the flexible character of design processes raises uncertainty about why certain energy measures are (not) allowed. How is decision making in thedesign process organised? And what mechanisms influence tailor made designs? In this paper we present an integral design method for energy efficient restoration. Our theoretical background draws on two sources. Firstly, we follow design theory with distinct generic and specific designs. Secondly we use the ‘heritage-as-a-spatial-factor’ approach, where participants with different backgrounds focus on adding value to heritage. By applying the integral design method, we evaluate decision making processes and reflect on heritage approaches. We suggest how the integral design method can be improved andquestion the parallel existence of heritage approaches.
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Peat swamp forests in Southeast Asia are under heavy pressure. Deforestation, forest degradation, wildfires, and drainage have damaged or destroyed substantial areas of the once extensive peat swamp forest formations. Several efforts are underway to rehabilitate degraded peat forests areas in order to restore some of the valuable ecosystem services these forested areas once provided. However, these efforts often result in (mixed)-plantations that only partly resemble the original peat forests. Information about these peat swamp forests' complex origin and ecology is needed to improve restoration outcomes further. Our paper analyses historical data from coastal peat swamp forests in Sarawak and Brunei and discusses the potential to use this as the reference value for intact peat forests. We describe the observed stand structure and species composition for pristine peat swamp forest, and we analyze the population structure of three dominant peat swamp forest species: Gonystylus bancanus (ramin), Dactylocladus stenostachys (jongkong) and Shorea albida (alan batu). We compare the historical data with data from recently measured, degraded peat swamp forests. We discuss our results in relation to processes of peat dome formation, nutrient availability and hydrology, and give recommendations for peat swamp forest management and restoration.
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A workshop that took place on the conference "The Restoration of Normality – Mirroring the Past in the Future" with the themes (among others) domestic violence, restorative justice, social support for ex-offenders, education & training and building up a probation service.
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On October 22st, 2021, the first ever recorded Diadema sea urchins in the Caribbean were cultured on Saba. Diadema sea urchins are important grazers and can facilitate corals by reducing their competition with algae. By culturing them, researchers from University of Applied Sciences Van Hall Larenstein set an important step in restocking sea urchins on Saba’s coral reefs.
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Sporen uit het verleden zijn het waard bewaard te wordenvoor volgende generaties!In het onderzoeksproject Energieke Restauratie (2011-2013)van het kenniscentrum NoorderRuimte istwee jaar onderzoek gedaan naar restauratie, energieconceptenen herontwikkeling van historische gebouwen. Dit project,gefinancierd door SIA-RAAK, werd uitgevoerd in samenwerkingmet vele bedrijven en instellingen in Noord-Nederland.Energieke Restauratie verwijst naar een integrale aanpak vanbehoud en vernieuwing in historische gebouwen, met eenhoge ambitie voor energiebesparing.Een ‘Energieke Restauratie’ begint met het herkennen vanwensen en randvoorwaarden in het vooronderzoek. Zo wordtbij het ontwerp rekening gehouden met historische waarden,energie, en gebruikerswensen. Uiteraard wordt er bij derestauratie van een historisch gebouw veel aandacht besteedaan effecten op de lange termijn, bijvoorbeeld voor hetvoorkomen van schade aan historische materialen, flexibiliteitvoor (toekomstig) gebruik, energielasten en gebruikscomfort.Op 19 september 2013 vond de afsluitende internationaleconferentie ERIC2013 plaats in Groningen. Met trots bieden wiju nu het magazine Energieke Restauratie aan, waarin u korteweergaves vindt van de presentaties op ERIC2013, voornamelijkin het Engels. Bovendien zijn de volledige artikelen van veledeelnemers aan de conferentie opgenomen.Verder vindt u een beknopt overzicht van alle uitgevoerde casestudies van Energieke Restauratie.Tot slot bedanken wij iedereen die heeft bijgedragen aan detotstandkoming van dit magazine: de schrijvers van de artikelen,de vormgever en uiteraard de sponsors die het drukken van ditmagazine mogelijk hebben gemaakt.
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PowerPoint presentation used at the 6th International Conference of Indonesia Forestry Researchers - Stream 2 Managing Forest and Natural Resources, Meeting Sustainable and Friendly Use 7-8 September 2021, Bogor, Indonesia.
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The conservation of our heritage buildings is a European wide policy objective. Historical buildings are not only works of art, but embody an important source of local identity and form a connection to our past. Protection agencies aim to preserve historical qualities for future generations. Their work is guided by restoration theory, a philosophy developed and codified in the course of the 19th and 20th century. European covenants, such as the Venice Charter, express shared views on the conservation and restoration of built heritage. Today, many users expect a building with modern comfort as well as a historical appearance. Moreover, new functionality is needed for building types that have outlived their original function. For example, how to reuse buildings such as old prisons, military barracks, factories, or railway stations? These new functions and new demands pose a challenge to restoration design and practices. Another, perhaps conflicting EU policy objective is the reduction of energy use in the built environment, in order to reach climate policy goals. Roughly 40% of the consumption of energy takes place in buildings, either in the production or consumption phase. However, energy efficiency is especially difficult to achieve in the case of historical buildings, because of strict regulations aimed at protecting historical values. Recently, there has been growing interest in energy efficient restoration practices in the Netherlands, as is shown by the 'energy-neutral' restoration of Villa Diederichs in Utrecht, the 'Boostencomplex' in Maastricht and De Tempel in The Hague. Although restoration of listed buildings is obviously focused on the preservation of historical values, with the pressing demands from EU climate policy the energy efficiency of historical building
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