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Ecology and Evolution

D-Index
38
Citations
5165
World Ranking
6680
National Ranking
416

Overview

Jens Roland is affiliated with the University of Alberta in Canada. Their research primarily spans the fields of Environmental Science and Agricultural and Biological Sciences. Across these broad disciplines, they have contributed to multiple subfields including Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, Genetics, Ecological Modeling, and Global and Planetary Change.

Their research topics cover a range of ecological and biological focuses. Principal themes include plant and animal studies, ecology and vegetation dynamics studies, species distribution and climate change, genetic diversity and population structure, fire effects on ecosystems, tree-ring climate responses, and marine and fisheries research.

Jens Roland has published several papers in notable journals over recent years. Selected publications include:

  • Inclusion of trophic interactions increases the vulnerability of an alpine butterfly species to climate change, 2020, Global Change Biology
  • Spatial variation in early-winter snow cover determines local dynamics in a network of alpine butterfly populations, 2020, Ecography
  • Demographic fluctuations lead to rapid and cyclic shifts in genetic structure among populations of an alpine butterfly, Parnassius smintheus, 2020, Journal of Evolutionary Biology
  • Variable synchrony in insect outbreak cycling across a forest landscape gradient: multi-scale evidence from trembling aspen in Alberta, 2023, Canadian Journal of Forest Research
  • Direct estimates of metapopulation capacity from dispersal show high interannual variability, but little effect of recent forest encroachment on network persistence, 2020, Landscape Ecology

Frequent coauthors collaborating with Jens Roland include Stephen F. Matter, Alessandro Filazzola, Nusha Keyghobadi, Mel Lucas, and Maryam Jangjoo, demonstrating interactions with researchers active in related ecological and biological studies.

Their publication venues reflect a focus on ecological and biological sciences, with articles appearing in journals such as Global Change Biology, Ecography, Journal of Evolutionary Biology, Canadian Journal of Forest Research, and Landscape Ecology.

Best Publications

  • Insect parasitoid species respond to forest structure at different spatial scales

    Jens Roland;Philip D. Taylor

  • ALPINE PARNASSIUS BUTTERFLY DISPERSAL: EFFECTS OF LANDSCAPE AND POPULATION SIZE

    Jens Roland;Nusha Keyghobadi;Sherri Fownes

  • Influence of landscape on the population genetic structure of the alpine butterfly parnassius smintheus (Papilionidae)

    Nusha Keyghobadi;Jens Roland;Curtis Strobeck

  • Large-scale forest fragmentation increases the duration of tent caterpillar outbreak

    Jens Roland

  • Critical issues in biological control.

    Manfred Mackauer;Lester E. Ehler;Jens Roland

  • Genetic differentiation and gene flow among populations of the alpine butterfly, Parnassius smintheus, vary with landscape connectivity.

    Nusha Keyghobadi;Nusha Keyghobadi;Jens Roland;Curtis Strobeck

  • Among- and within-patch components of genetic diversity respond at different rates to habitat fragmentation: an empirical demonstration.

    Nusha Keyghobadi;Jens Roland;Stephen F Matter;Curtis Strobeck

  • Melanism and diel activity of alpine Colias (Lepidoptera: Pieridae).

    Jens Roland

  • An experimental examination of the effects of habitat quality on the dispersal and local abundance of the butterfly Parnassius smintheus

    Stephen F. Matter;Jens Roland

  • Biological Control of the Winter Moth

    J. Roland;D. G. Embree

  • Connectivity rescues genetic diversity after a demographic bottleneck in a butterfly population network

    Maryam Jangjoo;Stephen F. Matter;Jens Roland;Nusha Keyghobadi

  • The influence of matrix habitat on Aphthona flea beetle immigration to leafy spurge patches.

    Ian D. Jonsen;Robert S. Bourchier;Jens Roland

  • Even smaller radar tags on insects

    Jens Roland;Graham McKinnon;Chris Backhouse;Philip D. Taylor

  • Reproductive asynchrony in natural butterfly populations and its consequences for female matelessness

    Justin M. Calabrese;Leslie Ries;Stephen F. Matter;Diane M. Debinski

  • Edge avoidance and movement of the butterfly Parnassius smintheus in matrix and non-matrix habitat

    J. Andrew Ross;Stephen F. Matter;Jens Roland

  • Moth Diversity in a Fragmented Habitat: Importance of Functional Groups and Landscape Scale in the Boreal Forest

    B. C. Schmidt;J. Roland

  • MIGRATION AND SURVIVAL OF PARNASSIUS SMINTHEUS: DETECTING EFFECTS OF HABITAT FOR INDIVIDUAL BUTTERFLIES

    Stephen F. Matter;Stephen F. Matter;Stephen F. Matter;Jens Roland;Atte Moilanen;Ilkka Hanski

  • Variability in winter climate and winter extremes reduces population growth of an alpine butterfly.

    Jens Roland;Stephen F. Matter

  • After the decline: what maintains low winter moth density after successful biological control?

    Jens Roland

  • Reduced transmission of forest tent caterpillar (Lepidoptera : Lasiocampidae) nuclear polyhedrosis virus at the forest edge

    Jens Roland;William J. Kauppp

  • Improved insect performance from host-plant defoliation: winter moth on oak and apple

    Jens Roland;Judith H. Myers

Frequent Co-Authors

Ian D. Jonsen
Ian D. Jonsen Macquarie University
Curtis Strobeck
Curtis Strobeck University of Alberta
Tomas Roslin
Tomas Roslin Swedish University of Agricultural Sciences
Philip D. Taylor
Philip D. Taylor Acadia University
Susan J. Hannon
Susan J. Hannon University of Alberta
Mark A. Lewis
Mark A. Lewis University of Victoria
Judith H. Myers
Judith H. Myers University of British Columbia
Atte Moilanen
Atte Moilanen University of Helsinki
William F. Fagan
William F. Fagan University of Maryland, College Park
Brendan Mackey
Brendan Mackey Griffith University

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