Essays about: "Rangifer tarandus"

Showing result 1 - 5 of 35 essays containing the words Rangifer tarandus.

  1. 1. Behavioral response of reindeer (Rangifer tarandus) to acoustic stimuli

    University essay from SLU/Dept. of Ecology

    Author : Johanna Börs; [2023]
    Keywords : reindeer; Rangifer tarandus; acoustic stimuli; behavioral response; flight response; induced fear;

    Abstract : Scare systems based on acoustic stimuli have been tested on several ungulates in recent years. The aim has been to investigate whether the method can be useful in situations where the animals must quickly be displaced from a specific site, for example, to prevent wildlife accidents. READ MORE

  3. 2. Parasitära anmärkningar vid renslakt 2013–2022

    University essay from SLU/Dept. of Clinical Sciences

    Author : Serina Fjällberg; [2023]
    Keywords : ren; slakt; besiktning; Rangifer tarandus; parasiter; H. tarandi; D. eckerti; E. rangifer; S. tundrae; O. tarsicola;

    Abstract : Det finns idag 240 000 renar i vinterhjorden i Sverige, och renskötsel bedrivs på 55 % av landets yta av urfolket samerna. Renskötsel är en unik djurhållning, där de semi-domesticerade renarna lever fritt i skog och fjäll. READ MORE

  4. 3. Correlation between Normalized Difference Vegetation Index (NDVI) and in vitro organic matter digestibility (IVOMD) of reindeer pasture plants : Korrelation mellan Normalized Difference Vegetation Index (NDVI) och smältbarhet av renbetesväxter i vomvätska in vitro (VOS)

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Jannica Helmersson; [2023]
    Keywords : Normalized Difference Vegetation Index; NDVI; in vitro organic matter digestibility; IVOMD; VOS; caribou; Rangifer tarandus; reindeer pasture plants; drone;

    Abstract : Renen livnär sig på många olika betesväxter och den följer växtfenologins utveckling under barmarkssäsongen, vilket resulterar i högkvalitativt foderintag. Levande växtbiomassa kan uppskattas på landskapsnivå genom att använda vegetationsindex som värderar vegetation utifrån spektrala mätningar. READ MORE

  5. 4. A field-based estimation of eagle predation and scavenging on reindeer calves : towards mitigating human-wildlife conflicts

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

    Author : Aemilius Johannes Van Der Meiden; [2023]
    Keywords : aquila chrysaetos; haliaeetus albicilla; rangifer tarandus; predation; repelling; human-wildlife conflict;

    Abstract : Eagle predation on semi-domesticated reindeer (Rangifer tarandus) calves, both golden (Aquila chrysaetos) and white-tailed eagle (Haliaeetus albicilla) is a well-known issue in Sweden. However, there is a knowledge gap regarding the balance between scavenging and hunting and the role that each of the eagle species has in this issue. READ MORE

  6. 5. Optimal foraging in an Arctic herbivore : How does the foraging behaviour of Svalbard reindeer (Rangifer tarandus platyrhynchus) respond to seasonal changes from summer through autumn of the Arctic tundra?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Emma Limosa Djurberg; [2023]
    Keywords : foraging behaviour; phenology; ungulate; Arctic; Rangifer tarandus platyrhynchus;

    Abstract : Foraging decisions of large herbivores can be affected by many factors and have great effect on both above- and below-ground ecosystems. Here, I determine to which degree temporal (seasonality), or spatial (habitat) factors influence the foraging behaviour of Svalbard reindeer (Rangifer tarandus platyrhynchus) and asses if small-scale foraging behaviour correlates with an animals’ patch residence time. READ MORE