111 Works

Data from: Consequences of grazer-induced vegetation transitions on ecosystem carbon storage in the tundra

Henni Ylänne, Johan Olofsson, Lauri Oksanen & Sari Stark
1. Large herbivores can control plant community composition and, under certain conditions, even induce vegetation shifts to alternative ecosystem states. As different plant assemblages maintain contrasting carbon (C) cycling patterns, herbivores have the potential to alter C sequestration at regional scales. Their influence is of particular interest in the Arctic tundra, where a large share of the world’s soil C reservoir is stored. 2. We analysed how grazing mammals influence tundra vegetation and how grazer-induced...

Data from: Palaeontology meets metacommunity ecology: The Maastricthian dinosaur fossil record of North America as a case study

Jorge García-Girón, Jani Heino, Janne Alahuhta, Alfio Alessandro Chiarenza & Steve Brusatte
Documenting the patterns and potential associated processes of ancient biotas has always been a central challenge in palaeontology. Over the last decades, intense debate has focused on the organisation of dinosaur–dominated communities, yet no general consensus has been reached on how these communities were organised in a spatial context and if primarily affected by abiotic or biotic agents. Here, we used analytical routines typically applied in metacommunity ecology to provide novel insights into dinosaurian distributions...

Data from: Causes and consequences of fine-scale population structure in a critically endangered freshwater seal

Mia Valtonen, Jukka U. Palo, Jouni Aspi, Minna Ruokonen, Mervi Kunnasranta & Tommi Nyman
Saimaa_ringed_seal_microsatSaimaa ringed seal genotypes based on 17 microsatellite loci. Individuals sampled between the years 1980-2008 from five regions of Lake Saimaa; Northern Saimaa (1st pop), Kolovesi (2nd pop), Main Haukivesi area (3rd pop), Pihlajavesi area (4th pop) and Southern Saimaa (5th pop). The data is in GenePop format.Saimaa_ringed_seal_sample_infoCollection information on the individual Saimaa ringed seals included in the study.

Data from: Fine-scale population genetic structure of the Bengal tiger (Panthera tigris tigris) in a human-dominated western Terai Arc Landscape, India

Sujeet Kumar Singh, Jouni Aspi, Laura Kvist, Reeta Sharma, Puneet Pandey, Sudhanshu Mishra, Randeep Singh, Manoj Agrawal & Surendra Prakash Goyal
Despite massive global conservation strategies, tiger populations continued to decline until recently, mainly due to habitat loss, human-animal conflicts, and poaching. These factors are known to affect the genetic characteristics of tiger populations and decrease local effective population sizes. The Terai Arc Landscape (TAL) at the foothills of the Himalaya is one of the 42 source sites of tigers around the globe. Therefore, information on how landscape features and anthropogenic factors affect the fine-scale spatial...

Data from: Genetic basis of local adaptation and flowering time variation in Arabidopsis lyrata

Päivi H. Leinonen, David L. Remington, Johanna Leppälä & Outi Savolainen
Understanding how genetic variation at individual loci contributes to adaptation of populations to different local environments is an important topic in modern evolutionary biology. To date, most evidence has pointed to conditionally neutral quantitative trait loci (QTL) showing fitness effects only in some environments, while there has been less evidence for single-locus fitness trade-offs. At QTL underlying local adaptation, alleles from the local population are expected to show a fitness advantage. Cytoplasmic genomes also can...

Data from: Thermal plasticity of growth and development varies adaptively among alternative developmental pathways

Sami Mikael Kivelä, Beatrice Svensson, Alma Tiwe & Karl Gotthard
Polyphenism, the expression of discrete alternative phenotypes, is often a consequence of a developmental switch. Physiological changes induced by a developmental switch potentially affect reaction norms, but the evolution and existence of alternative reaction norms remains poorly understood. Here, we demonstrate that, in the butterfly Pieris napi (Lepidoptera: Pieridae), thermal reaction norms of several life history traits vary adaptively among switch-induced alternative developmental pathways of diapause and direct development. The switch was affected both by...

Data from: Disentangling the complex evolutionary history of the Western Palearctic blue tits (Cyanistes spp.) – phylogenomic analyses suggest radiation by multiple colonisation events and subsequent isolation

Martin Stervander, Juan Carlos Illera, Laura Kvist, Pedro Barbosa, Naomi P. Keehnen, Peter Pruisscher, Staffan Bensch & Bengt Hansson
Isolated islands and their often unique biota continue to play key roles for understanding the importance of drift, genetic variation and adaptation in the process of population differentiation and speciation. One island system that has inspired and intrigued evolutionary biologists is the blue tit complex (Cyanistes spp.) in Europe and Africa, in particular the complex evolutionary history of the multiple genetically distinct taxa of the Canary Islands. Understanding Afrocanarian colonization events is of particular importance...

Data from: Inferring the effects of potential dispersal routes on the metacommunity structure of stream insects: as the crow flies, as the fish swims or as the fox runs?

Olli-Matti Kärnä, Mira Grönroos, Harri Antikainen, Jan Hjort, Jari Ilmonen, Lauri Paasivirta & Jani Heino
1. Metacommunity research relies largely on proxies for inferring the effect of dispersal on local community structure. Overland and watercourse distances have been typically used as such proxies. A good proxy for dispersal should, however, take into account more complex landscape features that can affect an organism's movement and dispersal. The cost distance approach does just that, allowing determining the path of least resistance across a landscape. 2. Here, we examined the distance decay of...

Data from: Non-invasive genetic monitoring involving citizen science enables reconstruction of current pack dynamics in a re-establishing wolf population

Hanna Granroth-Wilding, Craig Primmer, Meri Lindqvist, Jenni Poutanen, Olaf Thalmann, Jouni Aspi, Jenni Harmoinen, Ilpo Kojola & Toni Laaksonen
Background: Carnivores are re-establishing in many human-populated areas, where their presence is often contentious. Reaching consensus over management decisions is often hampered by a dispute about the size of the local carnivore population. Understanding the reproductive dynamics and individual movements of the carnivores can provide support for management decisions, but individual-level information can be difficult to obtain from elusive, wide-ranging species. Non-invasive genetic sampling can yield such information, but makes subsequent reconstruction of population history...

Data from: Stabilising selection on microsatellite allele length at arginine vasopressin 1a receptor and oxytocin receptor loci

Phillip C. Watts, Eva R. Kallio, Esa Koskela, Eija Lonn, Tapio Mappes & Mikael Mokkonen
The loci arginine vasopressin receptor 1a (avpr1a) and oxytocin receptor (oxtr) have evolutionarily conserved roles in vertebrate social and sexual behavior. Allelic variation at a microsatellite locus in the 5’ regulatory region of these genes is associated with fitness in the bank vole Myodes glareolus. Given the low frequency of long and short alleles at these microsatellite loci in wild bank voles, we used breeding trials to determine whether selection acts against long and short...

Urbanization extends flight phenology and leads to local adaptation of seasonal plasticity in Lepidoptera

Thomas Merckx, Matthew Nielsen, Janne Heliölä, Mikko Kuussaari, Lars Pettersson, Juha Pöyry, Juha Tiainen, Karl Gotthard & Sami Kivelä
Urbanization is globally gaining force and challenges biodiversity but has recently also emerged as an agent of evolutionary change. Seasonal phenology and life-cycle regulation are essential processes that urbanization is likely to alter through both the urban-heat-island effect (UHI) and artificial-light-at-night (ALAN). However, how UHI and ALAN affect the evolution of seasonal adaptations has received little attention. Here, we test for urban evolution of seasonal life-history plasticity, specifically changes in the photoperiodic induction of diapause...

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