A5000699362- Plant and animal studies
- Insect-Plant Interactions and Control
- Plant and fungal interactions
- Plant Parasitism and Resistance
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Legume Nitrogen Fixing Symbiosis
- Genetic diversity and population structure
- Botanical Research and Chemistry
- Plant Pathogens and Fungal Diseases
- Forest Insect Ecology and Management
- Insect and Arachnid Ecology and Behavior
- Rangeland and Wildlife Management
- Agronomic Practices and Intercropping Systems
- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Mycorrhizal Fungi and Plant Interactions
- Wildlife Ecology and Conservation
- Seed Germination and Physiology
- Plant biochemistry and biosynthesis
- Hemiptera Insect Studies
- Allelopathy and phytotoxic interactions
- Soil Carbon and Nitrogen Dynamics
University of Turku
2012-2025
Cornell University
2016-2023
Ever since the first plant secondary metabolites (PSMs) were isolated and identified, questions about their ecological functions diversity have been raised. Recent advances in analytical chemistry complex data computation, as well progress chemical ecology from mechanistic to functional evolutionary questions, open a new box of hypotheses. Addressing these hypotheses includes measurement traits, such chemodiversity, context-dependent manner allows for deeper understanding multifunctionality...
Interactions between plants and herbivores are central in most ecosystems, but their strength is highly variable. The amount of variability within a system thought to influence aspects plant-herbivore biology, from ecological stability plant defense evolution. Our understanding what influences variability, however, limited by sparse data. We collected standardized surveys herbivory for 503 species at 790 sites across 116° latitude. With these data, we show that within-population increases...
Summary Due to geographically variable species interactions, plants may become locally adapted their sympatric herbivores and pollinators. However, adaptation the abiotic environment significantly affect plant interactions with Local constrain local pollinators under contrasting selection pressures, resulting in trade‐offs adaptation. We studied of a perennial herb, V incetoxicum hirundinaria , reciprocal transplant experiment among four populations measured fitness, pollination success...
Abstract Soil microbiota can modify a plant’s growth and chemistry, with consequences for plant population persistence. Therefore, an approach that considers the entire life-cycle of given species may be necessary quantifying net effect soil on longer-lived plants. Here, we investigated effects fitness-related traits rate nitrogen-fixing legume Lupinus polyphyllus. Using seeds collected from native (North American) invasive (Finnish) populations species, conducted greenhouse experiment in...
Abstract Current anthropogenic environmental change causes rapid loss of biodiversity. Although the effects main this (habitat fragmentation, climate change, and invasive species) on single species have been widely studied, interactions are poorly understood. In particular, we do not yet understand how these phenomena affect evolutionary processes that impact interactions. Coevolution is a dominant process organizes web life: most involved in at least one coevolved interaction. Due to human...
Abstract Because inbreeding is common in natural populations of plants and their herbivores, herbivore‐induced selection on plants, vice versa , may be significantly modified by depression. In a feeding assay with inbred outbred lines both the perennial herb, Vincetoxicum hirundinaria its specialist herbivore, Abrostola asclepiadis we discovered that plant increased depression herbivore performance some populations. The effect resistance varied among among‐population variation likely to...
Abstract Purpose In cold climates, glyphosate residues may linger in soils, with effects on plant–microbe interactions and, consequently, plant performance. Here, we explore the influence of endophytic microbiota (bacteria and fungi) performance perennial nitrogen-fixing weed Lupinus polyphyllus . Methods a common garden, grew plants from six populations L. glyphosate-treated or untreated control without additional phosphorus. We sampled (leaves, roots, nodules) assessed based traits:...
Local adaptation of interacting species to one another indicates geographically variable reciprocal selection. This process is central in the organization and maintenance genetic variation across populations. Given that strength selection responses it often vary time space, local should theory between generations among However, such spatiotemporal has rarely been explicitly demonstrated nature commonly considered be relatively static. We report persistent short-lived herbivore Abrostola...
Abstract Soil microbiota can either slow down or facilitate plant invasions through their effects on performance. Associations with soil also modify other traits such as herbivore resistance, which indirectly affect the outcome of introductions. We studied perennial herbaceous legume Lupinus polyphyllus that hosts nitrogen‐fixing mutualistic bacteria. compared performance, resistance and volatile organic compounds (VOCs) plants from native (North American) invasive (Finnish) populations...
Abstract As a strategic cost‐saving alternative to constitutive resistance, induction of resistance against herbivores in plants can be especially beneficial when enemies are scarce or variable abundance. Although probably describing the two ends continuum, and induced strategies have long been observed trade off within species. Examining these traits among populations along successional gradient help explain how temporally environments maintain genetic variation ecosystem processes affected...
Abstract Introduced species, which establish in novel environments, provide an opportunity to explore trait evolution and how it may contribute the distribution spread of species. Here, we changes perennial herb Lupinus polyphyllus based on 11 native populations western USA 17 introduced Finland. More specifically, investigated whether outperformed traits measured situ (seed mass) under common garden conditions during their first year (plant size, flowering probability, number shoots). We...
Inbreeding can profoundly affect the interactions of plants with herbivores as well natural enemies herbivores. We studied how plant inbreeding affects herbivore oviposition preference, and whether both alters probability predation or parasitism eggs. In a laboratory preference test specialist moth Abrostola asclepiadis inbred outbred Vincetoxicum hirundinaria plants, we discovered that preferred to oviposit on plants. A field experiment bore eggs revealed were more likely be lost by...
Abstract Intraspecific variation in growth and defence among plant populations can be driven by differences (a)biotic conditions, such as herbivory resources. Introduction of species to novel environments affects simultaneously encountered a resource availability both directly via altered competitive environment. Here, we address the question how (leaf mass per area (LMA), size) resistance traits alkaloids, leaf trichomes, generalist snail) vary covary between native introduced garden...
Glyphosate is the most widely used non-selective herbicide in world. residues soil can affect plant quality by modifying physiology, hormonal pathways and traits, with potential consequences for plants' interactions herbivores. We explored these indirect effects context of plant-herbivore a perennial, nitrogen-fixing herb. quantified leaf herbivory glyphosate-exposed control plants grown phosphorus-fertilized non-fertilized soils, assessed impacts glyphosate treatment on traits related to...
Allelopathy is the stimulatory or inhibitory effect of one plant on another by release phytochemicals. It can affect competitive interactions between plants, but strength may depend tissue donor and phylogenetic relatedness interacting species. Here, we examined allelopathic effects invasive garden lupine Lupinus polyphyllus Lindl. (Fabaceae) six native herbs from three families (Asteraceae, Caryophyllaceae, Fabaceae). We exposed test species to aqueous leachates prepared root shoot L....
Host specialization is considered a primary driver of the enormous diversity herbivorous insects. Trade-offs in host use are hypothesized to promote this specialization, but they have mostly been studied generalist herbivores. We conducted multi-generation selection experiment examine adaptation specialist seed-feeding bug, Lygaeus equestris, three novel plants (Helianthus annuus, Verbascum thapsus and Centaurea phrygia) test whether trade-offs specialization. During experiment, body size L....
Plants defend themselves from herbivory by either reducing damage (resistance) or minimizing its negative fitness effects with compensatory growth (tolerance). Herbivore pressure can fluctuate year to in an early secondary successional community, which create temporal variation selection for defence traits. We manipulated insect and age of the community as agents natural replicated common gardens perennial herb Solidago altissima . In these genotypic experiments, consistently selected better...
Abstract Background and aims For invasive plant species that associate with mutualistic symbionts, partner quality can be critical to their invasion success. This might particularly true for legumes host nitrogen-fixing bacteria (rhizobia). Here, we examined the relative effectiveness of rhizobial strains on legume Lupinus polyphyllus . Methods We isolated rhizobia from field populations L. conducted inoculation experiments in which quantified growth greenhouse common-garden conditions....
Fragmented landscapes may have implications for the genetic structure of populations and microevolution plant species. In particular, landscape fragmentation and/or population isolation might affect evolution mating systems. Here, we study consequences on a perennial herb, Vincetoxicum hirundinaria with mixed system. Our area, south‐western Finnish archipelago, was formed after glacial ice sheet started to retreat 12 000 years ago. Due isostatic land uplift following retreat, suitable...
Vertically transmitted endophytic fungi can mitigate the negative effects of salinity encountered by their host grass and alter competitive interactions between plant individuals. To experimentally study interactive fungal endophyte Epichloë coenophiala on salt tolerance intraspecific competition its plant, tall fescue Festuca arundinacea, we subjected 15 maternal lines each associated (E+) free (E-) to treatment in greenhouse common garden. Then, explore variation incidence natural...
For invasive plant species that associate with mutualists, the presence of suitable partners or a lack thereof can be important to invasion success. We studied effects site history and soil microbiota on performance, folivore damage, resistance fungal disease legume Lupinus polyphyllus (Fabaceae). discovered invader benefited from microbes: plants treated an intact inoculum nodulated more than those grown in autoclaved soils, tended have higher biomass smaller relative investment roots as...