Essays about: "Epirrita autumnata"

Found 4 essays containing the words Epirrita autumnata.

  1. 1. Trends in mountain birch seed abundance and its relation to temperature and moth abundance: a ten-year study from Swedish Lapland

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Frida Gustafsson; [2023-02-09]
    Keywords : Betula pubescens; climate change; seed production; Epirrita autumnata; Operophtera brumata; subarctic ecology; folivory; larval abundance;

    Abstract : Boreal forest is the world’s largest terrestrial biome. Being one of the most ubiquitous and coldtolerant tree species in Sweden, the mountain birch forms a unique deciduous treeline and marks the forest-tundra ecotone. READ MORE

  3. 2. Moth and Birch

    University essay from Lunds universitet/Matematisk statistik

    Author : Valentina Pivotti; [2017]
    Keywords : Mathematics and Statistics;

    Abstract : The goal of this thesis is to build a near-real time defoliation detector that could be used, early in the spring, to find out which areas of a birch forest are being affected by an insect outbreak. The importance of a reliable detection at the beginning of the spring lies on the possibility for an early intervention. READ MORE

  4. 3. The survival of moth larvae feeding on different plant species in northern Fennoscandia

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Ulrika Belsing; [2015]
    Keywords : winter moth; ecosystem analysis; physical geography; autumn moth; northern Fennoscandia; outbreaks and sub-arctic environment; Earth and Environmental Sciences;

    Abstract : Northern Fennoscandia belongs to the sub-arctic environment and its forests are mostly composed of mountain birch trees (Betula pubescens ssp. czerepanovii). READ MORE

  5. 4. Mapping moth induced birch forest damage in northern Sweden, with MODIS satellite data

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Kristian Morin; [2013]
    Keywords : physical geography; topography; TIMESAT; Epirrita autumnata; geometrids; time series; MODIS; remote sensing; geography; birch forest; Earth and Environmental Sciences;

    Abstract : Large synchronous outbreaks of herbivory geometrids is regularly occurring at 9-10 years intervals when they reach peak densities in the Fennoscandian birch forest, in the northern part of Scandinavia (Tenow 1972, Bylund 1995). Climate change is likely to increase the frequency, intensity and extent of the outbreak due to increasing temperatures in the area (Callaghan 2010, Heliasz et al. READ MORE