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Helena Wirta

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Associate Professor in Ecology

University of Helsinki

Finland

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Professors in Finland Professors in Ecology Ecology professors in Finland

About

Helena Wirta is an Associate Professor at the University of Helsinki, Finland. Her research focuses on understanding ecological interactions, particularly in the context of grazing, biodiversity, and pollinator dynamics. Recent articles authored by her delve into topics such as the effects of modern cattle farming on arthropod communities, the impacts of environmental variation on plant-fungus networks, and the intricate relationships between honey bees and their floral resources.

Recent Grants

Grant: Open

Greening cities for all species: How to support human and pollinator wellbeing in urban areas?

Open Date: 2026-04-01

Close Date: 2029-03-01

Grant: Close

ArcEcoWeb: Ecosystem services and disservices in a changing Arctic – insect-based interaction webs and their role in pollination and disease-spread as climate changes

Open Date: 2024-01-01

Close Date: 2024-01-01

Grant: Close

All the stories honey can tell - a snapshot of the environment as revealed by honey

Open Date: 2019-09-01

Close Date: 2024-02-01

Grant: Close

Identification of honey origin based on DNA metabarcoding

Open Date: 2018-06-01

Close Date: 2019-12-01

Grant: Close

Resolving a heated topic by new techniques - using metabarcoding to assess Arctic community change

Open Date: 2014-04-01

Close Date: 2015-03-01

Articles (24)

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2026

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2023

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2023

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2023

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2022

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2022

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2021

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2020

Collaborators (22)

Alyssa Cirtwill

University of Helsinki

FINLAND

Helena Wirta

Research Interests

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About

Recent Grants

Articles (24)

Balancing grazing and biodiversity: Arthropod responses to modern cattle farming practices

Inferring plant-bee-microbe associations: Foragers, hive workers, and honey tell complementary stories

The Latitudinal Biotic Interaction Hypothesis revisited

Harmonising digitised herbarium data to enhance biodiversity knowledge: Major steps towards an updated checklist for the flora of Greenland

DNA in honey could describe the changes in flower visits and microbe encounters of honey bees over decades

Opportunistic partner choice among arctic plants and root‐associated fungi is driven by environmental conditions

Distinct Communities and Differing Dispersal Routes in Bacteria and Fungi of Honey Bees, Honey, and Flowers

Flower‐visitor and pollen‐load data provide complementary insight into species and individual network roles

Flower-visitor and pollen-load data provide complementary insight into species and individual network roles

Increasing variability in resource supply over time disrupts plant-pollinator interactions

Arctic plant-fungus interaction networks show major rewiring with environmental variation

Stable pollination service in a generalist high Arctic community despite the warming climate

Consistent imprints of elevation, soil temperature and moisture on plant and arthropod communities across two subarctic landscapes

﻿Ecological signals of arctic plant-microbe associations are consistent across eDNA and vegetation surveys

Trans-generational immune priming against American Foulbrood does not affect the performance of honeybee colonies

The role of seasonality in shaping the interactions of honeybees with other taxa

The role of seasonality in shaping the interactions of honeybees with other taxa

Honeybees’ foraging choices for nectar and pollen revealed by DNA metabarcoding

Honeybees' foraging choices for nectar and pollen revealed by DNA metabarcoding

Consistent imprints of elevation, soil temperature and moisture on plant and arthropod communities across two subarctic landscapes

Reconstructing the ecosystem context of a species: Honey-borne DNA reveals the roles of the honeybee

Morphological, Pathological and Genetic Diversity of the Colletotrichum Species, Pathogenic on Solanaceous Vegetable Crops in Bulgaria

DNA traces the origin of honey by identifying plants, bacteria and fungi

Unexpectedly diverse forest dung beetle communities in degraded rain forest landscapes in Madagascar

Collaborators (22)

Alyssa Cirtwill

Natasha de Vere

Toke T. Hoye

Laura Bosco

Ilya Maclean

Johan Ekroos

Mirkka Jones

Bastien Parisy

Niels Martin Schmidt

Eero J. Vesterinen

Thomas Pape

Iryna Herzon

Gianalberto Losapio

Jakob Abermann

Aleksi Lehikoinen

Natalie Iwanycki Ahlstrand

Claus Rasmussen

Inger G. Alsos

Tomas Roslin

Jens Olesen

Elisabeth Machteld Biersma

Dalial Freitak

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Ecological signals of arctic plant-microbe associations are consistent across eDNA and vegetation surveys