Jens Roland mainly investigates Ecology, Butterfly, Biological dispersal, Biological pest control and Spatial ecology. His research integrates issues of Genetic structure and Genetic variation in his study of Ecology. In general Butterfly, his work in Parnassius is often linked to Nectar and Nectarivore linking many areas of study.
His Biological pest control research includes themes of Winter moth, Flea beetle, Predation, Pest control and Natural enemies. His biological study spans a wide range of topics, including Gene flow and Isolation by distance. In his study, Habitat and Tent caterpillar is inextricably linked to Fragmentation, which falls within the broad field of Parasitism.
Jens Roland spends much of his time researching Ecology, Tent caterpillar, Butterfly, Habitat and Biological dispersal. His Ecology study often links to related topics such as Population density. His studies deal with areas such as Trembling aspen, Forestry, Taiga and Malacosoma as well as Tent caterpillar.
His Butterfly research includes elements of Abundance, Climate change, Parnassius smintheus, Population size and Gene flow. The study incorporates disciplines such as Biodiversity and Sedum lanceolatum in addition to Habitat. In his study, Flea beetle is strongly linked to Euphorbia esula, which falls under the umbrella field of Biological dispersal.
His main research concerns Ecology, Butterfly, Climate change, Population growth and Metapopulation. His studies deal with areas such as Population density, Parnassius smintheus and Population size as well as Ecology. The Butterfly study combines topics in areas such as Physical geography, Early winter and Satellite imagery.
His work in the fields of Global warming overlaps with other areas such as Periodic forcing and Outbreak. In his work, Vital rates, Climate model and Parnassius is strongly intertwined with Extreme weather, which is a subfield of Population growth. Jens Roland studied Old-growth forest and Tent caterpillar that intersect with Parasitism.
His primary areas of study are Ecology, Butterfly, Population growth, Pacific decadal oscillation and Climate change. Jens Roland works mostly in the field of Ecology, limiting it down to topics relating to Population density and, in certain cases, Parnassius smintheus, as a part of the same area of interest. His Shrub research focuses on Abundance and how it relates to Ungulate and National park.
His Predation research integrates issues from Woody plant, Life stage, Taiga, Generalist and specialist species and Parasitism. His Life stage study incorporates themes from Old-growth forest and Tent caterpillar. His Parnassius research incorporates themes from Overwintering, Range and Extreme weather.
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Insect parasitoid species respond to forest structure at different spatial scales
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Nature (1997)
ALPINE PARNASSIUS BUTTERFLY DISPERSAL: EFFECTS OF LANDSCAPE AND POPULATION SIZE
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Ecology (2000)
Influence of landscape on the population genetic structure of the alpine butterfly parnassius smintheus (Papilionidae)
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Molecular Ecology (1999)
Critical issues in biological control.
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Critical issues in biological control. (1990)
Large-scale forest fragmentation increases the duration of tent caterpillar outbreak
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Oecologia (1993)
Among- and within-patch components of genetic diversity respond at different rates to habitat fragmentation: an empirical demonstration.
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Proceedings of The Royal Society B: Biological Sciences (2005)
Genetic differentiation and gene flow among populations of the alpine butterfly, Parnassius smintheus, vary with landscape connectivity.
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Molecular Ecology (2005)
An experimental examination of the effects of habitat quality on the dispersal and local abundance of the butterfly Parnassius smintheus
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Ecological Entomology (2002)
Melanism and diel activity of alpine Colias (Lepidoptera: Pieridae).
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Oecologia (1982)
Biological Control of the Winter Moth
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Annual Review of Entomology (1995)
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