| 1. |
- Abdi, Abdulhakim M., et al.
(författare)
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Biodiversity decline with increasing crop productivity in agricultural fields revealed by satellite remote sensing
- 2021
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Ingår i: Ecological Indicators. - : Elsevier BV. - 1470-160X. ; 130
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Tidskriftsartikel (refereegranskat)abstract
- Increasing land-use intensity is a main driver of biodiversity loss in farmland, but measuring proxies for land-use intensity across entire landscapes is challenging. Here, we develop a novel method for the assessment of the impact of land-use intensity on biodiversity in agricultural landscapes using remote sensing parameters derived from the Sentinel-2 satellites. We link crop phenology and productivity parameters derived from time-series of a two-band enhanced vegetation index with biodiversity indicators (insect pollinators and insect-pollinated vascular plants) in agricultural fields in southern Sweden, with contrasting land management (i.e. conventional and organic farming). Our results show that arable land-use intensity in cereal systems dominated by spring-sown cereals can be approximated using Sentinel-2 productivity parameters. This was shown by the significant positive correlations between the amplitude and maximum value of the enhanced vegetation index on one side and farmer reported yields on the other. We also found that conventional cereal fields had 17% higher maximum and 13% higher amplitude of their enhanced vegetation index than organic fields. Sentinel-2 derived parameters were more strongly correlated with the abundance and species richness of bumblebees and the richness of vascular plants than the abundance and species richness of butterflies. The relationships we found between biodiversity and crop production proxies are consistent with predictions that increasing agricultural land-use intensity decreases field biodiversity. The newly developed method based on crop phenology and productivity parameters derived from Sentinel-2 data serves as a proof of concept for the assessment of the impact of land-use intensity on biodiversity over cereal fields across larger areas. It enables the estimation of arable productivity in cereal systems, which can then be used by ecologists and develop tools for land managers as a proxy for land-use intensity. Coupled with spatially explicit databases on agricultural land-use, this method will enable crop-specific cereal productivity estimation across large geographical regions.
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| 2. |
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| 3. |
- Andersson, Sofie, et al.
(författare)
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Är ekologisk odling bättre för miljön
- 2021
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Rapport (populärvet., debatt m.m.)abstract
- Sverige har ambitiösa mål för att öka den ekologiskt odlade jordbruksmarken. Samtidigt är det inte självklart att ekologisk odling är bättre för miljön. Här sammanställer vi kunskap om skillnader mellan ekologisk och konventionell odling i Sverige. De miljöfaktorer vi tittar på är biologisk mångfald, näringsläckage och utsläpp av växthusgaser. Sammanställningen tyder på att när miljöpåverkan mäts per hektar åkermark ger ekologisk odling ökad biologisk mångfald, mindre näringsläckage och lägre utsläpp av växthusgaser. Om miljöpåverkan istället beräknas utifrån hur mycket mark som krävs för att producera en bestämd mängd livsmedel finner vi att ekologisk odling bara har en positiv effekt på biologisk mångfald. Däremot kan utsläppen av växthusgaser och näringsläckage öka ifall samma mängd livsmedel ska produceras med ekologiskt istället för konventionellt jordbruk. Detta beror på att mer jordbruksmark krävs för att producera samma mängd livsmedel vid ekologisk odling vilket minskar möjligheten att använda mark för exempelvis skogsbruk och naturområden. Slutsatsen är därför att ekologisk odling inte entydigt är bättre för miljön än konventionell odling och att stöd till ekologisk odling således inte självklart kan motiveras utifrån miljöhänsyn. Jordbruksstöden behöver därför utformas för att minska miljöpåverkan oavsett om odlingen sker ekologiskt eller konventionellt.
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| 4. |
- Bartkowski, Bartosz, et al.
(författare)
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Payments by modelled results : A novel design for agri-environmental schemes
- 2021
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Ingår i: Land Use Policy. - : Elsevier BV. - 0264-8377 .- 1873-5754. ; 102
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Tidskriftsartikel (refereegranskat)abstract
- From a theoretical point of view, result-based agri-environmental payments are clearly preferable to action-based payments. However, they suffer from two major practical disadvantages: costs of measuring the results and payment uncertainty for the participating farmers. In this paper, we propose an alternative design to overcome these two disadvantages by means of modelling (instead of measuring) the results. We describe the concept of agri-environmental payments by modelled results (PAMR), including a hypothetical example of payments for the protection and enhancement of soil functions. We offer a comprehensive discussion of the relative advantages and disadvantages of PAMR, showing that it not only unites most of the different advantages of result-based and action-based schemes, but also adds two new advantages: the potential to address trade-offs among multiple policy objectives and management for long-term environmental effects. We argue that PAMR would be a valuable addition to the agri-environmental policy toolbox in the EU and beyond, while also reflecting recent advancements in agri-environmental modelling.
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| 5. |
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| 6. |
- Chowdhury, Shawan, et al.
(författare)
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Growth of non-English-language literature on biodiversity conservation
- 2022
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Ingår i: Conservation Biology. - : Wiley. - 0888-8892 .- 1523-1739. ; 36:4
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Tidskriftsartikel (refereegranskat)abstract
- English is widely recognized as the language of science, and English-language publications (ELPs) are rapidly increasing. It is often assumed that the number of non-ELPs is decreasing. This assumption contributes to the underuse of non-ELPs in conservation science, practice, and policy, especially at the international level. However, the number of conservation articles published in different languages is poorly documented. Using local and international search systems, we searched for scientific articles on biodiversity conservation published from 1980 to 2018 in English and 15 non-English languages. We compared the growth rate in publications across languages. In 12 of the 15 non-English languages, published conservation articles significantly increased every year over the past 39 years, at a rate similar to English-language articles. The other three languages showed contrasting results, depending on the search system. Since the 1990s, conservation science articles in most languages increased exponentially. The variation in the number of non-English-language articles identified among the search systems differed markedly (e.g., for simplified Chinese, 11,148 articles returned with local search system and 803 with Scopus). Google Scholar and local literature search systems returned the most articles for 11 and 4 non-English languages, respectively. However, the proportion of peer-reviewed conservation articles published in non-English languages was highest in Scopus, followed by Web of Science and local search systems, and lowest in Google Scholar. About 20% of the sampled non-English-language articles provided no title or abstract in English; thus, in theory, they were undiscoverable with English keywords. Possible reasons for this include language barriers and the need to disseminate research in countries where English is not widely spoken. Given the known biases in statistical methods and study characteristics between English- and non-English-language studies, non-English-language articles will continue to play an important role in improving the understanding of biodiversity and its conservation.
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| 7. |
- Hansson, Lars-Anders, et al.
(författare)
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Experimental evidence for a mismatch between insect emergence and waterfowl hatching under increased spring temperatures
- 2014
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Ingår i: Ecosphere. - : Ecological Society of America. - 2150-8925 .- 2150-8925. ; 5:9, s. 120-
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Tidskriftsartikel (refereegranskat)abstract
- By combining a large-scale experimental assessment on timing of insect emergence with longtermmonitoring of waterfowl hatching date, we here show that insect emergence is mainly driven bytemperature, whereas there is only a weak effect of increasing spring temperatures on inter-annualvariability in observations of waterfowl chicks. Hence, a change in timing of the mass-emergence of insectsfrom lakes and wetlands, which is the crucial food source for waterfowl chicks, will likely result in aconsumer/resource mismatch in a future climate change perspective. Specifically, we experimentally showthat a moderate increase in temperature of 38C above ambient, expected to occur within 25–75 years, leadsto a considerably (2 weeks) earlier, and more pronounced, peak in insect emergence (Chironomus sp).Moreover, by utilizing long-term Citizen Science databases, ranging over several decades, we also showthat common waterfowl species are unable to significantly adjust their reproduction to fit futuretemperature increase. Hence, based on our data we predict a future mismatch between insect emergenceand waterfowl species basing their reproduction on temperature. This will have a profound impact onreproductive success and population dynamics of many aquatic birds, as well as on freshwaterbiodiversity.
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| 8. |
- Hansson, Lars-Anders, et al.
(författare)
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Experimental evidence for a mismatch between insect emergence and waterfowl hatching under increased spring temperatures
- 2014
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Ingår i: Ecosphere. - : Wiley-Blackwell. - 2150-8925. ; 5:9, s. 1-9
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Tidskriftsartikel (refereegranskat)abstract
- By combining a large-scale experimental assessment on timing of insect emergence with long-term monitoring of waterfowl hatching date, we here show that insect emergence is mainly driven by temperature, whereas there is only a weak effect of increasing spring temperatures on inter-annual variability in observations of waterfowl chicks. Hence, a change in timing of the mass-emergence of insects from lakes and wetlands, which is the crucial food source for waterfowl chicks, will likely result in a consumer/resource mismatch in a future climate change perspective. Specifically, we experimentally show that a moderate increase in temperature of 3 degrees C above ambient, expected to occur within 25-75 years, leads to a considerably (2 weeks) earlier, and more pronounced, peak in insect emergence (Chironomus sp). Moreover, by utilizing long-term Citizen Science databases, ranging over several decades, we also show that common waterfowl species are unable to significantly adjust their reproduction to fit future temperature increase. Hence, based on our data we predict a future mismatch between insect emergence and waterfowl species basing their reproduction on temperature. This will have a profound impact on reproductive success and population dynamics of many aquatic birds, as well as on freshwater biodiversity.
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| 9. |
- Malmström, Nils, et al.
(författare)
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Skatt på bränsle - hur kan fisket anpassas?
- 2023
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Rapport (populärvet., debatt m.m.)abstract
- EU-kommissionen har lagt fram ett förslag på nytt energiskattedirektiv som innebär att yrkesfisket kan komma att betala bränsleskatt. Detta medför i så fall ökade kostnader och lägre lönsamhet för yrkesfisket inom EU. Syftet med denna studie är att undersöka hur fisket kan anpassa sig till en bränsleskatt genom att på olika sätt minska sin bränsleförbrukning. Våra resultat visar att fisket kan minska bränsleförbrukningen på kort sikt genom att köra långsammare och fiska närmare hamnen. På medellång sikt kan fiskare byta eller anpassa sina redskap och på lång sikt kan fiskare investera i mer bränslesnåla motorer eller behöva dra ned på fisket. För att underlätta anpassningarna kan styrmedel, såsom investeringsstöd och innovationsstöd användas. På lång sikt ger hållbart förvaltade fiskbestånd bättre förutsättningar för fisket att hantera högre bränslekostnader.
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| 10. |
- Raatikainen, Kaisa J., et al.
(författare)
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Pathways towards a sustainable future envisioned by early-career conservation researchers
- 2021
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Ingår i: CONSERVATION SCIENCE AND PRACTICE. - : John Wiley & Sons. - 2578-4854. ; 3:9
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Tidskriftsartikel (refereegranskat)abstract
- Scientists have warned decision-makers about the severe consequences of the global environmental crisis since the 1970s. Yet ecological degradation continues and little has been done to address climate change. We investigated early-career conservation researchers' (ECR) perspectives on, and prioritization of, actions furthering sustainability. We conducted a survey (n = 67) and an interactive workshop (n = 35) for ECR attendees of the 5th European Congress of Conservation Biology (2018). Building on these data and discussions, we identified ongoing and forthcoming advances in conservation science. These include increased transdisciplinarity, science communication, advocacy in conservation, and adoption of a transformation-oriented social-ecological systems approach to research. The respondents and participants had diverse perspectives on how to achieve sustainability. Reformist actions were emphasized as paving the way for more radical changes in the economic system and societal values linked to the environment and inequality. Our findings suggest that achieving sustainability requires a strategy that (1) incorporates the multiplicity of people's views, (2) places a greater value on nature, and (3) encourages systemic transformation across political, social, educational, and economic realms on multiple levels. We introduce a framework for ECRs to inspire their research and practice within conservation science to achieve real change in protecting biological diversity.
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