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Pekka Niemelä

Pekka Niemelä

D-Index & Metrics

Ecology and Evolution

D-Index
58
Citations
9980
World Ranking
2612
National Ranking
47

Overview

Pekka Niemelä is affiliated with the University of Turku in Finland. Their expertise lies primarily within the fields of Agricultural and Biological Sciences, Environmental Science, and Earth and Planetary Sciences. The scientist's research spans several subfields, including Ecology, Evolution, Behavior and Systematics, Oceanography, Global and Planetary Change, Plant Science, and Ecological Modeling.

Their academic output includes recent papers published between 2020 and 2024. These works appear in journals such as Frontiers in Ecology and the Environment, Ecology and Evolution, Scientific Reports, Boreal Environment Research Journal Archive, and Heliyon. Notable papers include:

  • Complex responses of global insect pests to climate warming, 2020, Frontiers in Ecology and the Environment
  • Within-season changes in habitat use of forest-dwelling boreal bats, 2020, Ecology and Evolution
  • Temporomandibular joint and Giant Panda's (Ailuropoda melanoleuca) adaptation to bamboo diet, 2021, Scientific Reports
  • Effects of soil quality and air pollution on the rooting and survival of Salix borealis cuttings, 2024, Boreal Environment Research Journal Archive
  • Changes in Atlantic climatic regulation mechanisms that underlie mesozooplankton biomass loss in the northern Baltic Sea, 2024, Heliyon

The scientist frequently collaborates with peers including Pekka K. Vallittu, Juha Varrela, Jukka Salo, Hemin Zhang, and Heta Rousi. Their publications cover a range of research topics, highlighting key focuses such as Plant and Animal Studies, Species Distribution and Climate Change, Marine and Fisheries Research, Marine and Coastal Ecosystems, Oceanographic and Atmospheric Processes, Insect-Plant Interactions and Control, and Plant Responses to Elevated CO2.

Publication venues where Pekka Niemelä has contributed multiple articles include Scientific Reports, Frontiers in Ecology and the Environment, Ecology and Evolution, Heliyon, and Boreal Environment Research Journal Archive. This distribution of publication venues reflects a research profile oriented toward ecological and environmental sciences with an emphasis on both terrestrial and marine ecosystems.

Best Publications

  • River dynamics and the diversity of Amazon lowland forest

    Jukka Salo;Risto Kalliola;Ilmari Häkkinen;Yrjö Mäkinen

  • Complex responses of global insect pests to climate warming

    Philipp Lehmann;Philipp Lehmann;Philipp Lehmann;Tea Ammunét;Madeleine Barton;Andrea Battisti

  • Nutrient stress: an explanation for plant anti-herbivore responses to defoliation

    Juha Tuomi;Pekka Niemelä;Erkki Haukioja;Seija Sirén

  • Invasion of North American Forests by European Phytophagous Insects Legacy of the European crucible

    Pekka Niemelä;William J. Mattson

  • Defensive Responses of Trees in Relation to Their Carbon/Nutrient Balance

    Juha Tuomi;Pekka Niemelä;F. Stuart ChapinIII;John P. Bryant

  • Insects on trees : population and individual response to fertilization

    Maarit Kytö;Pekka Niemelä;Stig Larsson

  • Birch leaves as a resource for herbivores: Seasonal occurrence of increased resistance in foliage after mechanical damage of adjacent leaves.

    Erkki Haukioja;Pekka Niemelä

  • Climate Change and Range Shifts in Two Insect Defoliators: Gypsy Moth and Nun Moth - a Model Study

    Henri Vanhanen;Timo O Veteli;Sonja Päivinen;Seppo Kellomäki

  • Foliage phenols and nitrogen in relation to growth, insect damage, and ability to recover after defoliation, in the mountain birch Betula pubescens ssp tortuosa.

    Erkki Haukioja;Pekka Niemelä;Seija Sirén

  • The Autumnal Moth in Fennoscandia

    Erkki Haukioja;Seppo Neuvonen;Sinikka Hanhimäki;Pekka Niemelä

  • Moose Browsing on Scots Pine along a Gradient of Plant Productivity

    Kjell Danell;Pekka Niemela;Tuomo Varvikko;Timo Vuorisalo

  • Growth of reindeer lichens and effects of reindeer grazing on ground cover vegetation in a Scots pine forest and a subarctic heathland in Finnish Lapland

    Michael Den Herder;Minna‐Maarit Kytöviita;Pekka Niemelä

  • Delayed induced resistance and increase in leaf fluctuating asymmetry as responses of Salix borealis to insect herbivory.

    Elena L Zvereva;Mikhail V Kozlov;Pekka Niemelä;Erkki Haukioja

  • Induced responses in stilbenes and terpenes in fertilized Norway spruce after inoculation with blue-stain fungus, Ceratocystis polonica.

    Heli Viiri;Erkki Annila;Veikko Kitunen;Pekka Niemelä

  • The influence of ants on the survival of mountain birches during an Oporinia autumnata (Lep., Geometridae) outbreak.

    Kari J. Laine;Pekka Niemelä

  • The effect of elevated CO2 and temperature on the secondary chemistry of Betula pendula seedlings

    Kari Kuokkanen;Riitta Julkunen-Tiitto;Markku Keinänen;Pekka Niemelä

  • Abiotic factors, climatic variability and forest insect pests

    Seppo Neuvonen;Tarmo Antero Virtanen

  • Few immigrant phytophagous insects on woody plants in Europe: legacy of the European crucible?

    William Mattson;Henri Vanhanen;Timo Veteli;Sanna Sivonen

  • The Panglossian paradigm and delayed inducible accumulation of foliar phenolics in mountain birch

    Juha Tuomi;Pekka Niemelä;Seija Sirén

  • Reversed latitudinal gradient in species richness of sawflies (Hymenoptera, Symphyta)

    J. Kouki;P. Niemelä;M. Viitasaari

  • Plant availability hypothesis and other explanations of herbivore cycles: complementary or exclusive alternatives?

    Erkki Haukioja;Keijo Kapiainen;Pekka Niemela;Juha Tuomi

  • Seasonal patterns in species richness of herbivores: macrolepidopteran larvae on Finnish deciduous trees.

    Pekka Niemelä

Frequent Co-Authors

Liselotte Sundström
Liselotte Sundström University of Helsinki
Anita C. Risch
Anita C. Risch Swiss Federal Institute for Forest, Snow and Landscape Research
Martin F. Jurgensen
Martin F. Jurgensen Michigan Technological University
Leena Finér
Leena Finér Natural Resources Institute Finland
Juha Tuomi
Juha Tuomi University of Oulu
Seppo Kellomäki
Seppo Kellomäki University of Eastern Finland
Erkki Haukioja
Erkki Haukioja University of Turku
Pekka Punttila
Pekka Punttila Finnish Environment Institute
Mikhail V. Kozlov
Mikhail V. Kozlov University of Turku
Riitta Julkunen-Tiitto
Riitta Julkunen-Tiitto University of Eastern Finland

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