Essays about: "egg numbers"

Showing result 1 - 5 of 12 essays containing the words egg numbers.

  1. 1. Vilken metod är effektivast för fångster av fyrtandad rapsvivel i kål och raps?

    University essay from SLU/Dept. of Ecology

    Author : Anton Sandmark; [2023]
    Keywords : fyrtandad rapsvivel; Ceutorhyncus pallidactylus; raps; Brassica napus; kål; Brassica oleracea; IPM; fångstmetoder; gulskål; gul klisterfälla;

    Abstract : Odling av frilandsgrönsaker står inför många utmaningar. För svenska kålodlare har det på senare år uppkommit problem med skadegöraren fyrtandad rapsvivel, Ceutorhynchus pallidactylus (Marsh.) (Coleoptera: Curculionidae). Larverna av C. READ MORE

  3. 2. Searching for the greater Capricorn beetle : a methodological review of training dogs for a conservational purpose

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Linnea Ingelsbo; [2021]
    Keywords : dog search; Cerambyx cerdo; conservation detection dog; quercus; dog behaviour; swedish oak history;

    Abstract : The Greater Capricorn beetle Cerambyx cerdo is an endangered species both in Sweden (CR) and internationally (VU). The substrate, old Oak, dropped heavily in numbers in Sweden during the 19th century, which left the beetle without suitable habitats. The only remaining population is on Öland, an island on the Swedish east coast. READ MORE

  4. 3. Laid eggs in vain got eaten by a crane? : Investigating habitat selection and activity by Common cranes to consider potential impact on other wetland bird species

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Johnny Ingerström; [2020]
    Keywords : Common crane; Grus grus; habitat selection; resource selection function; time budget; predation; wetland;

    Abstract : Wetland species are declining and efforts are being made to protect wetlands and their biodiversity. In Europe, these efforts could be hampered by the recent rise in the Western European Common crane (Grus grus) population. READ MORE

  5. 4. Strongylus vulgaris : samband med äggurskiljning, ålder och bekämpningsåtgärder

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : My Persson; [2019]
    Keywords : Strongylus vulgaris; blodmask; strongylider; stor blodmask; EPG; ålder; hästantal; bekämpningsåtgärder; avmaskningsrutiner;

    Abstract : Strongylus vulgaris, or large strongyles, is the most dangerous of the equine endoparasites. Its larvae can cause lethal intestinal infarctions when they move through the horse’s blood vessels. READ MORE

  6. 5. Why have the eggs in Baltic salmon (Salmo salar L.) become larger?

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Shoumo Khondoker; [2018]
    Keywords : baltic salmon; egg size; egg numbers; length; wild; hatchery;

    Abstract : The size of the eggs in fish long been regarded as an important parameter in comparative ichthyology, as it has been linked to fitness related traits such as the survival and competitive ability of the offspring. However, very few studies exist were variation in egg-size within a population has been investigated over long time. READ MORE