| 1. |
- Axelsson Linkowski, Weronika, et al.
(författare)
-
Shifting Strategies between Generations in Sami Reindeer Husbandry : the Challenges of Maintaining Traditions while Adapting to a Changing Context
- 2020
-
Ingår i: Human Ecology. - : Springer Science and Business Media LLC. - 0300-7839 .- 1572-9915. ; 48, s. 481-490
-
Tidskriftsartikel (refereegranskat)abstract
- Many traditional pastoralist systems are greatly impacted by cumulative encroachments of other land users and by climate change. Understanding land degradation and the adaptive capacity of people who are dependent on the rangelands is an urgent priority for many areas in the world. In this research we explore how changing environmental conditions affect herding strategies on winter pastures and the role of indigenous and local traditional knowledge (ILK) in Sami reindeer husbandry. Our results indicate that traditional Sami reindeer herding strategies are still practiced, but that rapidly changing environmental circumstances are forcing herders into uncharted territories where these traditional strategies and the transmission of knowledge between generations may be of limited use. For example, rotational grazing is no longer possible as all pastures are being used, and changes in climate result in unpredictable weather patterns unknown to earlier generations.
|
|
| 2. |
- Benavides, Raquel, et al.
(författare)
-
The GenTree Leaf Collection : Inter- and intraspecific leaf variation in seven forest tree species in Europe
- 2021
-
Ingår i: Global Ecology and Biogeography. - : John Wiley & Sons. - 1466-822X .- 1466-8238. ; 30:3, s. 590-597
-
Tidskriftsartikel (refereegranskat)abstract
- Motivation Trait variation within species can reveal plastic and/or genetic responses to environmental gradients, and may indicate where local adaptation has occurred. Here, we present a dataset of rangewide variation in leaf traits from seven of the most ecologically and economically important tree species in Europe. Sample collection and trait assessment are embedded in the GenTree project (EU-Horizon 2020), which aims at characterizing the genetic and phenotypic variability of forest tree species to optimize the management and sustainable use of forest genetic resources. Our dataset captures substantial intra- and interspecific leaf phenotypic variability, and provides valuable information for studying the relationship between ecosystem functioning and trait variability of individuals, and the response and resilience of species to environmental changes. Main types of variable contained We chose morphological and chemical characters linked to trade-offs between acquisition and conservation of resources and water use, namely specific leaf area, leaf size, carbon and nitrogen content and their ratio, and the isotopic signature of stable isotope C-13 and N-15 in leaves. Spatial location and grain We surveyed between 18 and 22 populations per species, 141 in total, across Europe. Time period Leaf sampling took place between 2016 and 2017. Major taxa and level of measurement We sampled at least 25 individuals in each population, 3,569 trees in total, and measured traits in 35,755 leaves from seven European tree species, i.e. the conifers Picea abies, Pinus pinaster and Pinus sylvestris, and the broadleaves Betula pendula, Fagus sylvatica, Populus nigra and Quercus petraea. Software format The data files are in ASCII text, tab delimited, not compressed.
|
|
| 3. |
- Germovsek, Eva, et al.
(författare)
-
A Time-to-Event Model Relating Integrated Craving to Risk of Smoking Relapse Across Different Nicotine Replacement Therapy Formulations
- 2021
-
Ingår i: Clinical Pharmacology and Therapeutics. - : John Wiley & Sons. - 0009-9236 .- 1532-6535. ; 109:2, s. 416-423
-
Tidskriftsartikel (refereegranskat)abstract
- Smoking increases the risk of cancer and other diseases, causing an estimated 7 million deaths per year. Nicotine replacement therapy (NRT) reduces craving for smoking, therefore, increasing an individual's probability to remain abstinent. In this work, we for the first time quantitatively described the relationship between craving and smoking abstinence, using retrospectively collected data from 19 studies, including 3 NRT formulations (inhaler, mouth spray, and patch) and a combination of inhaler and patch. Smokers motivated to quit were included in the NRT or placebo arms. Integrated craving (i.e., craving over a period of time) was assessed with 4-category, 5-category, or 100-mm visual analogue scale. The bounded integer model was used to assess latent craving from all scales. A time-to-event model linked predicted integrated craving to the hazard of smoking relapse. Available data included 9,323 adult subjects, observed for 3 weeks up to 2 years. At the study end, 9% (11% for NRT and 5% for placebo), on average, remained abstinent according to the protocol definition. A Gompertz-Makeham hazard best described the data, with a hazard of smoking relapse decreasing over time. Latent integrated craving was positively related to the hazard of smoking relapse, through a sigmoidal maximum effect function. For the same craving, being on NRT was found to reduce the hazard of relapse by an additional 30% compared with placebo. This work confirmed that low craving is associated with a high probability of remaining smoking abstinent and that NRT, in addition to reducing craving, increases the probability of remaining smoking abstinent.
|
|
| 4. |
- Germovsek, Eva, et al.
(författare)
-
Relating Nicotine Plasma Concentration to Momentary Craving Across Four Nicotine Replacement Therapy Formulations
- 2020
-
Ingår i: Clinical Pharmacology and Therapeutics. - : WILEY. - 0009-9236 .- 1532-6535. ; 107:1, s. 238-245
-
Tidskriftsartikel (refereegranskat)abstract
- Tobacco use is a major health concern. To assist smoking cessation, nicotine replacement therapy (NRT) is used to reduce nicotine craving. We quantitatively described the relationship between nicotine pharmacokinetics (PKs) from NRTs and momentary craving, linking two different pharmacodynamic (PD) scales for measuring craving. The dataset comprised retrospective data from 17 clinical studies and included 1,077 adult smokers with 39,802 craving observations from four formulations: lozenge, gum, mouth spray, and patch. A PK/PD model was developed that linked individual predicted nicotine concentrations with the categorical and visual analogue PD scales through a joint bounded integer model. A maximum effect model, accounting for acute tolerance development, successfully related nicotine concentrations to momentary craving. Results showed that all formulations were similarly effective in reducing craving, albeit with a fourfold lower potency for the patch. Women were found to have a higher maximal effect of nicotine to reduce craving, compared with men.
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Lennartsson, Tommy, et al.
(författare)
-
Skötselplanering i skogsbetesmarker : vägledning
- 2021
-
Bok (övrigt vetenskapligt/konstnärligt)abstract
- För endast ett sekel sedan täckte skogsbetesmarker och andra naturbeten mycket stora arealer och utgjorde en grundförutsättning för landets försörjning och livsmedelsproduktion. Formade av århundraden av bete och lokalt mångbruk fanns en bred palett av skogsbetesmarker. Idag är det svårt att föreställa sig hur ett visst skogsbete kan ha sett ut och nyttjats, men det är ändå det vi behöver veta så mycket som möjligt om, för att förstå vad som har gett upphov till de natur- och kulturmiljövärden som finns kvar idag.
|
|
| 8. |
- Martinez-Sancho, Elisabet, et al.
(författare)
-
The GenTree Dendroecological Collection, tree-ring and wood density data from seven tree species across Europe
- 2020
-
Ingår i: Scientific Data. - : NATURE PUBLISHING GROUP. - 2052-4463. ; 7
-
Tidskriftsartikel (refereegranskat)abstract
- The dataset presented here was collected by the GenTree project (EU-Horizon 2020), which aims to improve the use of forest genetic resources across Europe by better understanding how trees adapt to their local environment. This dataset of individual tree-core characteristics including ring-width series and whole-core wood density was collected for seven ecologically and economically important European tree species: silver birch (Betula pendula), European beech (Fagus sylvatica), Norway spruce (Picea abies), European black poplar (Populus nigra), maritime pine (Pinus pinaster), Scots pine (Pinus sylvestris), and sessile oak (Quercus petraea). Tree-ring width measurements were obtained from 3600 trees in 142 populations and whole-core wood density was measured for 3098 trees in 125 populations. This dataset covers most of the geographical and climatic range occupied by the selected species. The potential use of it will be highly valuable for assessing ecological and evolutionary responses to environmental conditions as well as for model development and parameterization, to predict adaptability under climate change scenarios.
|
|
| 9. |
- Nilsson, Niklas, et al.
(författare)
-
The economic cost and patient-reported outcomes of chronic Achilles tendon ruptures.
- 2020
-
Ingår i: Journal of experimental orthopaedics. - : Springer Science and Business Media LLC. - 2197-1153. ; 7
-
Tidskriftsartikel (refereegranskat)abstract
- While most Achilles tendon ruptures are dramatic and diagnosed quickly, some are missed, with a risk of becoming chronic. A chronic Achilles tendon rupture is defined as a rupture that has been left untreated for more than 4 weeks. By mapping the health economic cost of chronic Achilles tendon ruptures the health-care system might be able to better distribute resources to detect these ruptures at an earlier time.All patients with a chronic Achilles tendon rupture who were treated surgically at Sahlgrenska University Hospital or Kungsbacka Hospital between 2013 and 2018 were invited to participate in the study. The patients were evaluated postoperatively using the validated Achilles tendon Total Rupture Score (ATRS). The health-care costs were assessed using clinical records. The production-loss costs were extracted from the Swedish Social Insurance Agency. The cost of chronic Achilles tendon ruptures was then compared with the cost of acute ruptures in a previous study by Westin et.al.Forty patients with a median (range) age of 66 (28-86) were included in the study. The mean total cost (± SD) for the patients with a chronic Achilles tendon rupture was 6494 EUR±6508, which is 1276 EUR higher than the mean total cost of acute ruptures. Patients with chronic Achilles tendon ruptures reported a mean (min-max) postoperative ATRS of 73 (14-100).Missing an Achilles tendon rupture will entail higher health-care costs compared with acute ruptures. Health-care resources can be saved if Achilles tendon ruptures are detected at an early stage.
|
|
| 10. |
- Opgenoorth, Lars, et al.
(författare)
-
The GenTree Platform : growth traits and tree-level environmental data in 12 European forest tree species
- 2021
-
Ingår i: GigaScience. - : Oxford University Press. - 2047-217X. ; 10:3
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Progress in the field of evolutionary forest ecology has been hampered by the huge challenge of phenotyping trees across their ranges in their natural environments, and the limitation in high-resolution environmental information.Findings: The GenTree Platform contains phenotypic and environmental data from 4,959 trees from 12 ecologically and economically important European forest tree species: Abies alba Mill. (silver fir), Betula pendula Roth. (silver birch), Fagus sylvatica L. (European beech), Picea abies (L.) H. Karst (Norway spruce), Pinus cembra L. (Swiss stone pine), Pinus halepensis Mill. (Aleppo pine), Pinus nigra Arnold (European black pine), Pinus pinaster Aiton (maritime pine), Pinus sylvestris L. (Scots pine), Populus nigra L. (European black poplar), Taxus baccata L. (English yew), and Quercus petraea (Matt.) Liebl. (sessile oak). Phenotypic (height, diameter at breast height, crown size, bark thickness, biomass, straightness, forking, branch angle, fructification), regeneration, environmental in situ measurements (soil depth, vegetation cover, competition indices), and environmental modeling data extracted by using bilinear interpolation accounting for surrounding conditions of each tree (precipitation, temperature, insolation, drought indices) were obtained from trees in 194 sites covering the species' geographic ranges and reflecting local environmental gradients.Conclusion: The GenTree Platform is a new resource for investigating ecological and evolutionary processes in forest trees. The coherent phenotyping and environmental characterization across 12 species in their European ranges allow for a wide range of analyses from forest ecologists, conservationists, and macro-ecologists. Also, the data here presented can be linked to the GenTree Dendroecological collection, the GenTree Leaf Trait collection, and the GenTree Genomic collection presented elsewhere, which together build the largest evolutionary forest ecology data collection available.
|
|
