Search Results - "Ovaskainen, Otso"

How to make more out of community data? A conceptual framework and its implementation as models and software by Ovaskainen, Otso, Tikhonov, Gleb, Norberg, Anna, Guillaume Blanchet, F., Duan, Leo, Dunson, David, Roslin, Tomas, Abrego, Nerea, Chave, Jerome

“…Community ecology aims to understand what factors determine the assembly and dynamics of species assemblages at different spatiotemporal scales. To facilitate…”
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Evaluating the predictive performance of presence–absence models: Why can the same model appear excellent or poor? by Abrego, Nerea, Ovaskainen, Otso

“…When comparing multiple models of species distribution, models yielding higher predictive performance are clearly to be favored. A more difficult question is…”
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Making more out of sparse data: hierarchical modeling of species communities by Ovaskainen, Otso, Soininen, Janne

“…Community ecologists and conservation biologists often work with data that are too sparse for achieving reliable inference with species-specific approaches…”
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So Many Variables: Joint Modeling in Community Ecology by Warton, David I., Blanchet, F. Guillaume, O’Hara, Robert B., Ovaskainen, Otso, Taskinen, Sara, Walker, Steven C., Hui, Francis K.C.

“…Technological advances have enabled a new class of multivariate models for ecology, with the potential now to specify a statistical model for abundances…”
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Using latent variable models to identify large networks of species‐to‐species associations at different spatial scales by Ovaskainen, Otso, Abrego, Nerea, Halme, Panu, Dunson, David, Warton, David

“…Summary We present a hierarchical latent variable model that partitions variation in species occurrences and co‐occurrences simultaneously at multiple spatial…”
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Using joint species distribution models for evaluating how species‐to‐species associations depend on the environmental context by Tikhonov, Gleb, Abrego, Nerea, Dunson, David, Ovaskainen, Otso, Warton, David

“…Summary Joint species distribution models (JSDM) are increasingly used to analyse community ecology data. Recent progress with JSDMs has provided ecologists…”
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Modeling species co-occurrence by multivariate logistic regression generates new hypotheses on fungal interactions by Ovaskainen, Otso, Hottola, Jenni, Siitonen, Juha

“…Signals of species interactions can be inferred from survey data by asking if some species occur more or less often together than what would be expected by…”
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A comprehensive evaluation of predictive performance of 33 species distribution models at species and community levels by Norberg, Anna, Abrego, Nerea, Blanchet, F. Guillaume, Adler, Frederick R., Anderson, Barbara J., Anttila, Jani, Araujo, Miguel B., Dallas, Tad, Dunson, David, Elith, Jane, Foster, Scott D., Fox, Richard, Franklin, Janet, Godsoe, William, Guisan, Antoine, O'Hara, Bob, Hill, Nicole A., Holt, Robert D., Hui, Francis K. C., Husby, Magne, Kålås, John Atle, Lehikoinen, Aleksi, Luoto, Miska, Mod, Heidi K., Newell, Graeme, Renner, Ian, Roslin, Tomas, Soininen, Janne, Thuiller, Wilfried, Vanhatalo, Jarno, Warton, David, White, Matt, Zimmermann, Niklaus E., Gravel, Dominique, Ovaskainen, Otso

“…A large array of species distribution model (SDM) approaches has been developed for explaining and predicting the occurrences of individual species or species…”
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Data collected by fruit body‐ and DNA‐based survey methods yield consistent species‐to‐species association networks in wood‐inhabiting fungal communities by Saine, Sonja, Ovaskainen, Otso, Somervuo, Panu, Abrego, Nerea

“…Inferring interspecific interactions indirectly from community data is of central interest in community ecology. Data on species communities can be surveyed…”
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Interactions between soil- and dead wood-inhabiting fungal communities during the decay of Norway spruce logs by Mäkipää, Raisa, Rajala, Tiina, Schigel, Dmitry, Rinne, Katja T, Pennanen, Taina, Abrego, Nerea, Ovaskainen, Otso

“…We investigated the interaction between fungal communities of soil and dead wood substrates. For this, we applied molecular species identification and stable…”
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Co‐occurrence patterns in a steppe bird community: insights into the role of dominance and competition by Barrero, Adrián, Ovaskainen, Otso, Traba, Juan, Gómez‐Catasús, Julia

“…Spatial co‐occurrence patterns are determined by environmental factors, such as food availability or habitat characteristics and by biotic associations. When…”
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Estimating population-level coancestry coefficients by an admixture F model by Karhunen, Markku, Ovaskainen, Otso

“…In this article, we develop an admixture F model (AFM) for the estimation of population-level coancestry coefficients from neutral molecular markers. In…”
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Dispersal may limit the occurrence of specialist wood decay fungi already at small spatial scales by Norros, Veera, Penttilä, Reijo, Suominen, Mai, Ovaskainen, Otso

“…We used species-specific spore traps to measure airborne dispersal of the wood decay fungus Phlebia centrifuga (spore size 6.5–9 X 2.5–3 µm) up to 1000m…”
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Specialist species of wood-inhabiting fungi struggle while generalists thrive in fragmented boreal forests by Nordén, Jenni, Penttilä, Reijo, Siitonen, Juha, Tomppo, Erkki, Ovaskainen, Otso

“…1. The loss of suitable habitats is one of the main causes behind the loss of species and communities. Habitat fragmentation, that is, the division of the…”
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Characteristic Spatial and Temporal Scales Unify Models of Animal Movement by Gurarie, Eliezer, Ovaskainen, Otso

“…Animal movements have been modeled with diffusion at large scales and with more detailed movement models at smaller scales. We argue that the biologically…”
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Large-Scale Habitat Corridors for Biodiversity Conservation: A Forest Corridor in Madagascar by Ramiadantsoa, Tanjona, Ovaskainen, Otso, Rybicki, Joel, Hanski, Ilkka

“…In biodiversity conservation, habitat corridors are assumed to increase landscape-level connectivity and to enhance the viability of otherwise isolated…”
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Community-level phenological response to climate change by Ovaskainen, Otso, Skorokhodova, Svetlana, Yakovleva, Marina, Sukhov, Alexander, Kutenkov, Anatoliy, Kutenkova, Nadezhda, Shcherbakov, Anatoliy, Meyke, Evegeniy, del Mar Delgado, Maria

“…Climate change may disrupt interspecies phenological synchrony, with adverse consequences to ecosystem functioning. We present here a 40-y-long time series on…”
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Do small spores disperse further than large spores? by Norros, Veera, Rannik, Üllar, Hussein, Tareq, Petäjä, Tuukka, Vesala, Timo, Ovaskainen, Otso

“…In species that disperse by airborne propagules an inverse relationship is often assumed between propagule size and dispersal distance. However, for…”
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Habitat-specific movement parameters estimated using mark-recapture data and a diffusion model by Ovaskainen, Otso

“…I describe a diffusion model aimed at the quantitative analysis of movement in heterogeneous landscapes. The model is based on classifying a landscape into a…”
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Forest and connectivity loss drive changes in movement behavior of bird species by Ramos, Danielle Leal, Pizo, Marco Aurélio, Ribeiro, Milton Cezar, Cruz, Rafael Souza, Morales, Juan Manuel, Ovaskainen, Otso

“…In a rapidly changing world, it is important to understand how environmental modifications by humans affect species behavior. This is not a simple task, since…”
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