33 Works

ICOS Atmosphere Level 2 data, Norunda, release 2019-1

Meelis Mölder
ICOS Atmospheric Greenhouse Gas Mole Fractions of CO2, CH4, CO, 14CO2 and Meteorological Observations, period 2017-04-01 to 2019-04-30, Norunda, final quality controlled Level 2 data, release 2019-1. All ICOS stations follow the ICOS Atmospheric Station specification V1.3 (https://www.icos-ri.eu/fetch/ba12290c-3714-4dd5-a9f0-c431b9900ad1;1.0) and are certified as ICOS atmospheric stations Class I or II. Data processing has been performed as described in Hazan et al., 2016 (doi:10.5194/amt-9-4719-2016).

Data from: Competition, seed dispersal, and hunting: what drives germination and seedling survival in an Afrotropical forest?

Ola Olsson, Gabriela Nuñez-Iturri, Henrik G. Smith, Ulf Ottosson & Edu O. Effiom
Disentangling the contributions of different processes that influence plant recruitment, such as competition and seed dispersal, is important given the increased human-mediated changes in tropical forest ecosystems. Previous studies have shown that seedling communities in an Afro-tropical rainforest in Southeastern Nigeria are strongly affected by the loss of important seed dispersing primates, including Cross River gorillas (Gorilla gorilla diehli), chimpanzee (Pan troglodytes elioti), and drill (Mandrillus leucophaeus). Here we study how germination and survival of...

Beak morphology predicts apparent survival of crossbills: due to selective survival or selective dispersal?

David Gómez-Blanco, Simone Santoro, Pim Edelaar, Antoni Borrás, Josep Cabrera & Juan Carlos Senar
Dozens of morphologically differentiated populations, subspecies and species of crossbills (genus Loxia) exist. It has been suggested that this divergence is due to variation in the conifer cones that each population specialises upon, requiring a specific beak size to efficiently separate the cone scales. If so, apparent survival should depend on beak size. To test this hypothesis, we undertook multievent capture-recapture modelling for 6,844 individuals monitored during 27 years in a Pyrenean Common crossbill (L....

Data from: Pollination treatment affects fruit set and modifies marketable and storable fruit quality of commercial apples

Ulrika Samnegård, Peter Hambäck & Henrik Smith
Insect-mediated pollination increases yields of many crop species and some evidence suggests that it also influences crop quality. However, the mechanistic linkages between insect-mediated pollination and crop quality are poorly known. In this study, we explored how different pollination treatments affected fruit set, dry matter content (DMC), mineral content and storability of apples. Apple flowers supplementary pollinated with compatible pollen resulted in higher initial fruit set rates, higher fruit DMC and a tendency for lower...

The migration pattern of a monogamous shorebird challenges existing hypotheses explaining the evolution of differential migration

Linus Hedh & Anders Hedenström
Differential migration by sex, where one sex migrates further than the other, occurs in many bird species. How this pattern evolves is however little understood. The first aim of this study was to investigate the extent of differential migration in the common ringed plover Charadrius hiaticula, breeding in southeast Sweden, and test three main hypotheses (the social dominance, body size and arrival time hypothesis) regarding the evolution of differential migration. Geolocators were used to derive...

Repeated sex chromosome evolution in vertebrates supported by expanded avian sex chromosomes

Hanna Sigeman, Bengt Hansson, Suvi Ponnikas, Pallavi Chauhan, Elisa Dierickx & M. De L. Brooke
Sex chromosomes have evolved from the same autosomes multiple times across vertebrates, suggesting that selection for recombination suppression has acted repeatedly and independently on certain genetic backgrounds. Here, we perform comparative genomics of a bird clade (larks and their sister lineage; Alaudidae and Panuridae) where multiple sex chromosome–autosome fusions appear to have formed expanded sex chromosomes. We detected the largest known avian sex chromosome (195.3 Mbp) and show that it originates from fusions between parts...

Data from: Bumblebee visual allometry results in locally improved resolution and globally improved sensitivity

Gavin J. Taylor, Pierre Tichit, Marie D. Schmidt, Andrew J. Bodey, Christoph Rau & Emily Baird
The quality of visual information that is available to an animal is limited by the size of its eyes. Differences in eye size can be observed even between closely related individuals, yet we understand little about how this affects vision. Insects are good models for exploring the effects of size on visual systems because many insect species exhibit size polymorphism. Previous work has been limited by difficulties in determining the 3D structure of eyes. We...

Data from: Seed dispersal and fine-scale genetic structuring in the asexual Nigritella miniata (Orchidaceae) in the Alps

Mikael Hedrén & Richard Lorenz
Orchids have minute, air-filled seeds and are considered as efficient dispersers and colonizers. Yet, empirical studies show that most seeds fall within the nearest metre from the mother plant in orchids, and that individuals standing close to each other are often closely related. A poor contribution to gene dispersal by seeds may be compensated for by more efficient dispersal by pollen, but in autogamous or agamospermous orchids this component is not available. Here, we used...

Data from: Resting metabolic rate in migratory and non-migratory geese following range expansion; go south, go low

Götz Eichhorn, Manfred R. Enstipp, Jean-Yves Georges, Dennis Hasselquist & Bart A. Nolet
While many species suffer from human activities, some like geese benefit and may show range expansions. In some cases geese (partially) gave up migration and started breeding at wintering and stopover grounds. Range expansion may be facilitated and accompanied by physiological changes, especially when associated with changes in migratory behaviour. Interspecific comparisons found that migratory tendency is associated with a higher basal or resting metabolic rate (RMR). We compared RMR of individuals belonging to a...

Shear anisotropy in Si-Cu interfaces on the atomic scale

D. Johansson, P. Hansson, A. Ahadi & S. Melin
Three dimensional molecular dynamics (MD) is used to model the mechanical response at the interface between a thin Cu coating resting on a base of Si. The copper coating is subjected to a displacement controlled shear load and the atom movements at the Si-Cu interface are monitored to investigate the effects of crystallographic anisotropy. The two crystals have the same crystallographic orientation, and two different interface normal directions are considered. The shear load is applied...

Data from: The contribution of successional grasslands to the conservation of semi-natural grasslands species – A landscape perspective

Barbara C. Schmid, Oskar Löfgren, Martin T. Sykes, Peter Poschlod, Karin Hall & Honor C. Prentice
These data have been used in the following works: Schmid, B. C., Poschlod, P., & Prentice, H. C. (2017). The contribution of successional grasslands to the conservation of semi-natural grasslands species – A landscape perspective. Biological Conservation, 206, 112-119. doi:10.1016/j.biocon.2016.12.002 Oskar Löfgren, Karin Hall, Barbara C. Schmid, Honor C. Prentice. (in revision: Journal of Vegetation Science). Grasslands ancient and modern: soil nutrients, habitat age and their relation to Ellenberg N Abstract (Schmid et al. 2017)...

Data from \"Removal of grazers alters the response of tundra soil carbon to warming and enhanced nitrogen availability\", Ecological Monograps in October 2019

Henni Ylänne, Elina Kaarlejärvi, Maria Väisänen, Minna K Männistö, Saija H. K. Ahonen, Johan Olofsson & Sari Stark
Here we present the data used in the manuscript "Removal of grazers alters the response of tundra soil carbon to warming and enhanced nitrogen availability", Ecological Monograps, Early view in October 2019 by H. Ylänne, E. Kaarlejärvi, M. Väisänen, M. K. Männistö, S. H. K. Ahonen, J. Olofsson & S. Stark. In this paper we studied, how five years of experimental warming and increased soil nitrogen availability interact with both long- and short-term differences in...

Data from: Wind-associated detours promote seasonal migratory connectivity in a flapping flying long-distance avian migrant

Gabriel Norevik, Susanne Akesson, Tom Artois, Natalie Beenaerts, Greg Conway, Brian Cresswell, Ruben Evens, Ian Henderson, Frederic Jiguet & Anders Hedenström
1. It is essential to gain knowledge about the causes and extent of migratory connectivity between stationary periods of migrants to further the understanding of processes affecting populations, and to allow efficient implementation of conservation efforts throughout the annual cycle. Avian migrants likely use optimal routes with respect to mode of locomotion, orientation and migration strategy, influenced by external factors such as wind and topography. In self-powered flapping flying birds any increases in fuel loads...

The Benefits of Help in Cooperative Birds – non-existent or difficult to detect?

Philip Downing, Ashleigh Griffin & Charlie Cornwallis
In birds that breed cooperatively in family groups, adult offspring often delay dispersal to assist the breeding pair in raising their young. Kin selection is thought to play an important role in the evolution of this breeding system. However, evidence supporting the underlying assumption that helpers increase the reproductive success of breeders is inconsistent. In 10/19 species where the effect of helpers on breeder reproductive success has been estimated while controlling for the effects of...

The implications of different approaches to define AT(N) in Alzheimer's disease

Niklas Mattsson
Objective: To compare different amyloid-β (A), tau (T) and neurodegeneration (N) [AT(N)] variants within the Swedish BioFINDER studies. Methods: A total of490 participants were classified into AT(N) groups. These include 53 cognitively unimpaired (CU) and 48 cognitively impaired (CI) participants (14 mild cognitive impairment [MCI] and 34 AD dementia) from BioFINDER-1 and 389 participants from BioFINDER-2 (245 CU and 144 CI subjects [138 MCI and six AD dementia]).Biomarkers for “A” were CSF Aβ42 and Amyloid-PET...

Data from: Defence versus defence: are crucian carp trading off immune function against predator-induced morphology?

Jerker Vinterstare, Arne Hegemann, Anders Nilsson, Kaj Hulthén & Christer Brönmark
1. Numerous species adopt inducible defence strategies, i.e. they have phenotypically plastic traits that decrease the risk of capture and consumption by potential predators. The benefits of expressing alternative phenotypes in high- versus low-risk environments are well documented. However, inducible anti-predator traits are also expected to incur costs, as they are not expressed when predators are absent, yet empirical evidence of such costs remains scarce. 2. Virtually all animals in nature are simultaneously under strong...

Data from: Temperature drives pre-reproductive selection and shapes the biogeography of a female polymorphism

Erik I. Svensson, Beatriz Willink, M. Catherine Duryea & Lesley Lancaster
Conflicts of interests between males and females over reproduction is a universal feature of sexually reproducing organisms and has driven the evolution of intersexual mimicry, mating behaviors and reproductive polymorphisms. Here we show how temperature drives pre-reproductive selection in a female colour polymorphic insect that is subject to strong sexual conflict. This species has three female colour morphs, one of which is a male mimic. This polymorphism is maintained by frequency-dependent sexual conflict caused by...

Quantifying the effects of species traits on predation risk in nature: a comparative study of butterfly wing damage

Freerk Molleman, Juhan Javoiš, Robert Davis, Melissa Whitaker, Toomas Tammaru, Andreas Prinzing, Erki Õunap, Niklas Wahlberg, Ullasa Kodandaramaiah, Kwaku Aduse-Poku, Ants Kaasik & James Carey
1) Evading predators is a fundamental aspect of the ecology and evolution of all prey animals. In studying the influence of prey traits on predation risk, previous researchers have shown that crypsis reduces attack rates on resting prey, predation risk increases with increased prey activity, and rapid locomotion reduces attack rates and increases chances of surviving predator attacks. However, evidence for these conclusions is nearly always based on observations of selected species under artificial conditions....

Data from: Hybridization patterns between two marine snails, Littorina fabalis and L. obtusata

Diana Costa, Graciela Sotelo, Antigoni Kaliontzopoulou, João Carvalho, Roger Butlin, Johan Hollander & Rui Faria
Characterizing the patterns of hybridization between closely related species is crucial to understand the role of gene flow in speciation. In particular, systems comprising multiple contacts between sister species offer an outstanding opportunity to investigate how reproductive isolation varies with environmental conditions, demography and geographic contexts of divergence. The flat periwinkles, Littorina obtusata and L. fabalis (Gastropoda), are two intertidal sister species with marked ecological differences compatible with late stages of speciation. Although hybridization between...

Artificial light at night, in interaction with spring temperature, modulates timing of reproduction in a passerine bird

Davide M. Dominoni, Johan Kjellberg Jensen, Maaike De Jong, Marcel E. Visser & Kamiel Spoelstra
The ecological impact of artificial light at night (ALAN) on phenological events such as reproductive timing is increasingly recognized. In birds, previous experiments under controlled conditions showed that ALAN strongly advances gonadal growth, but effects on egg-laying date are less clear. In particular, effects of ALAN on timing of egg-laying are found to be year-dependent, suggesting an interaction with climatic conditions such as spring temperature, which is known have strong effects on the phenology of...

Data from: Carbon use efficiency of mycorrhizal fungal mycelium increases during the growing season but decreases with forest age across a Pinus sylvestris chronosequence

Andreas Hagenbo, David Hadden, Karina E. Clemmensen, Achim Grelle, Stefano Manzoni, Meelis Mölder, Alf Ekblad & Petra Fransson
1. In boreal forest soils, mycelium of mycorrhizal fungi is pivotal for regulating soil carbon (C) cycling and storage. The carbon use efficiency (CUE), a key parameter in C cycling models, can inform on the partitioning of C between microbial biomass, and potential soil storage, and respiration. Here we test the dependency of mycorrhizal mycelial CUE on stand age and seasonality in managed boreal forest stands. 2. Based on mycelial production and respiration estimates, derived...

Data from: Non‐breeding flight activity in pallid swifts Apus pallidus

Anders Hedenström, Gabriel Norevik, Giovanni Boano, Arne Andersson, Johan Bäckman & Susanne Akesson
Flight activity recorders have recently confirmed that alpine and common swifts spend the majority of their non‐breeding period on the wing, which may last 6‐10 months. Here we test the hypothesis that the closely related pallid swift, a species with a breeding distribution around the Mediterranean, lead a similar aerial life‐style during its migration and wintering periods. The pallid swift usually lays two clutches in one season and therefore spends more time in the breeding...

Data from: Sexual conflict and intrasexual polymorphism promote assortative mating and halts population differentiation

Lars L. Iversen, Erik I. Svensson, Søren T. Christensen, Johannes Bergsten & Kaj Sand-Jensen
Sexual conflict is thought to be an important evolutionary force in driving phenotypic diversification, population divergence and speciation. However, empirical evidence is inconsistent with the generality of sexual conflict as enhancing population divergence. Here we demonstrate an alternative evolutionary outcome in which sexual conflict plays a conservative role in maintaining male and female polymorphisms locally, rather than promoting population divergence. In diving beetles, female polymorphisms have evolved in response to male mating harassment and sexual...

ICOS Atmosphere Level 2 data, Hyltemossa, release 2019-1

Michal Heliasz
ICOS Atmospheric Greenhouse Gas Mole Fractions of CO2, CH4, CO, 14CO2 and Meteorological Observations, period 2017-04-17 to 2019-04-30, station Hyltemossa, final quality controlled Level 2 data, release 2019-1. All ICOS stations follow the ICOS Atmospheric Station specification V1.3 (https://www.icos-ri.eu/fetch/ba12290c-3714-4dd5-a9f0-c431b9900ad1;1.0) and are certified as ICOS atmospheric stations Class I or II. Data processing has been performed as described in Hazan et al., 2016 (doi:10.5194/amt-9-4719-2016).

Data from: Apolipoprotein M-bound sphingosine-1-phosphate regulates blood-brain barrier paracellular permeability and transcytosis

Mette Mathiesen Janiurek, Rana Soylu-Kucharz, Christina Christoffersen, Krzysztof Kucharz & Martin Lauritzen
The blood-brain barrier (BBB) is formed by the endothelial cells lining cerebral microvessels. Here, we report that the BBB permeability is modified by apolipoprotein M (apoM)-bound sphingosine 1–phosphate (S1P). We used two-photon microscopy to monitor changes in BBB permeability in apoM-deficient mice (apoM-/-), showing significant increases in paracellular BBB permeability to small molecules without structural changes in junctional complexes between endothelial cells. Lack of apoM-bound S1P increased vesicle-mediated transfer of albumin across endothelium of brain...

Registration Year

  • 2019
    33

Resource Types

  • Dataset
    30
  • Collection
    2
  • Text
    1

Affiliations

  • Lund University
    33
  • Swedish University of Agricultural Sciences
    3
  • University of Aberdeen
    2
  • French National Centre for Scientific Research
    2
  • University of Costa Rica
    2
  • Stockholm University
    2
  • University of Padua
    1
  • Estación Biológica de Doñana
    1
  • University of Jos
    1
  • University of Eastern Finland
    1