10 Works

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...

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...

Identifying biotic drivers of population dynamics in a benthic–pelagic community

Louise Forsblom, Andreas Lindén, Jonna Engström-Öst, Maiju Lehtiniemi & Erik Bonsdorff
Benthic species and communities are linked to pelagic zooplankton through life-stages encompassing both benthic and pelagic habitats and through a mutual dependency on primary producers as a food source. Many zooplankton taxa contribute to the sedimentary system as benthic eggs. Our main aim was to investigate the nature of the population level biotic interactions between and within these two seemingly independent communities, both dependent on the pelagic primary production, while simultaneously accounting for environmental drivers...

Environmental variables and occurrence of 13 fish species

Tapio Sutela, Teppo Vehanen, Pekka Jounela & Jukka Aroviita
Species-environment relationships were studied between the occurrence of 13 fish and lamprey species and 9 mainly map-based environmental variables of Finnish boreal small streams. A self-organizing map (SOM) analysis showed strong relationships between the fish species and environmental variables in a single model (explained variance 55.9%). Besides basic environmental variables such as altitude, catchment size, and mean temperature, landcover variables were also explored. A logistic regression analysis indicated that the occurrence probability of brown trout,...

Phenotypic variation in male Calopteryx splendens damselflies: The role of wing pigmentation and body size in thermoregulation

Linda Laakso, Jaakko Ilvonen & Jukka Suhonen
For an ectothermic insect, its color and size are important determinants of body temperature: dark colors absorb heat more efficiently, while larger bodies require more heat to reach a certain temperature. These dark colors are expressed using melanin, which has been intimately linked with an insect’s thermoregulatory capabilities. Melanin is also linked with immune defense and is often used as a secondary sexual character in insects. There is a potential trade-off situation between thermoregulatory capabilities,...

Microclimatic variability buffers butterfly populations against increased mortality caused by phenological asynchrony between larvae and their host plants

Susu Rytteri, Mikko Kuussaari & Marjo Saastamoinen
Climate change affects insects in several ways, including phenological shifts that may cause asynchrony between herbivore insects and their host plants. Insect larvae typically have limited movement capacity and are consequently dependent on the microhabitat conditions of their immediate surroundings. Based on intensive field monitoring over two springs and on larger-scale metapopulation-level survey over the same years, we used Bayesian spatial regression modelling to study the effects of weather and microclimatic field conditions on the...

Data from: Does trait-based joint species distribution modelling reveal the signature of competition in stream macroinvertebrate communities?

Merja Elo, Jenny Jyrkänkallio-Mikkola, Otso Ovaskainen, Janne Soininen, Kimmo Tolonen & Jani Heino
1. The occupancy and abundance of species are jointly driven by local factors, such as environmental characteristics and biotic interactions, and regional-scale factors, such as dispersal and climate. Recently, it has been shown that biotic interactions shape species occupancies and abundances beyond local extents. However, for small ectothermic animals, particularly for those occurring in freshwater environments, the importance of biotic interactions remains understudied. Species-to-species associations from joint species distribution models (i.e. species associations while controlling...

Data for: Combining range and phenology shifts offers a winning strategy for boreal Lepidoptera

Maria Hällfors, Maria Hällfors, Juha Pöyry, Janne Heliölä, Ilmari Kohonen, Mikko Kuussaari, Reima Leinonen, Reto Schmucki, Pasi Sihvonen & Marjo Saastamoinen
Species can adapt to climate change by adjusting in situ or by dispersing to new areas, and these strategies may complement or enhance each other. Here, we investigate temporal shifts in phenology and spatial shifts in northern range boundaries for 289 Lepidoptera species by using long-term data sampled over two decades. While 40% of the species neither advanced phenology nor moved northward, nearly half (45%) used one of the two strategies. The strongest positive population...

Differential speciation rates, colonization time, and niche conservatism affect community assembly across adjacent biogeographical regions

Ronildo Benício, Diogo Provete, Mariana Lyra, Jani Heino, Célio Haddad, Denise De C. Rossa-Feres & Fernando Da Silva
Aim: To test the importance of evolutionary and biogeographic processes in shaping the assembly of local frog communities in two adjacent regions (hereafter, coastal and inland regions) with different historical signatures. We asked two main questions: i) why does the coastal region harbor more frog species than the inland region? and ii) how do these processes affect the relationship between the spatial variation of taxonomic, phylogenetic, and functional diversities within and across these regions? Location:...

Blue consequences of the green bioeconomy: clear-cutting intensifies the harmful impacts of land drainage on stream invertebrate biodiversity

Maria Rajakallio, Jussi Jyväsjärvi, Timo Muotka & Jukka Aroviita
1. Growing bioeconomy is increasing the pressure to clear-cut drained peatland forests. Yet, the cumulative effects of peatland drainage and clear-cutting on the biodiversity of recipient freshwater ecosystems are largely unknown. 2. We studied the isolated and combined effects of peatland drainage and clear-cutting on stream macroinvertebrate communities. We further explored whether the impact of these forestry-driven catchment alterations to benthic invertebrates is related to stream size. We quantified the impact on invertebrate biodiversity by...

Registration Year

  • 2021

Resource Types

  • Dataset


  • Finnish Environment Institute
  • Natural Resources Institute Finland
  • University of Oulu
  • University of Helsinki
  • UK Centre for Ecology & Hydrology
  • Federal University of São Carlos
  • Lund University
  • University of Edinburgh
  • Universidade Paulista
  • Åbo Akademi University