Essays about: "large herbivores"

Showing result 1 - 5 of 25 essays containing the words large herbivores.

  1. 1. Shifts within the carbon cycle in response to the absence of keystone herbivore Ovibos moschatus in a high arctic mire

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Joel White; [2017]
    Keywords : vegetation; carbon; wetland.; methane; Arctic; Physical Geography Ecosystem Science; herbivory; Earth and Environmental Sciences;

    Abstract : Tundra ecosystems are generally recognized as globally important carbon sinks, yet the knowledge on threats to such ecosystems is narrow. Climate change is predicted to reduce the number of muskox (Ovibos moschatus) in the arctic, it is therefore essential to understand the effect herbivores induce on the arctic ecosystem. READ MORE

  2. 2. The repulsive shrub : impact of an invasive shrub on habitat selection by African large herbivores

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

    Author : David Rozen-Rechels; [2015]
    Keywords : invasive plants; large herbivores; savanna; habitat selection; clearing;

    Abstract : Invasive plants, growing and spreading outside of their native range, can severely modify ecosystems. Herbivory has often been seen as a potential control of invasions, but has rarely been considered as a potential impacted trophic level. READ MORE

  3. 3. Hot, hungry, or dead : how herbivores select microhabitats based on the trade-off between temperature and predation risk

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

    Author : Kristina Vallance; [2015]
    Keywords : temperature; herbivores; savanna; predation risk; habitat selection;

    Abstract : Besides habitat loss and fragmentation, global warming is a major anthropogenic factor affecting species today. With temperatures rising, and barriers to movement increasing, many species are turning to behavioural responses deal with increased temperatures. These behavioural responses can be with respect to time or space use. READ MORE

  4. 4. Parasite detection in extensively hold Gotland ponies

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

    Author : Johanna Karlsson; [2015]
    Keywords : Gotland pony; horse; parasite; strongyle; roundworm; tapeworm; pinworm; extensive holding;

    Abstract : Horses are herbivores that spend almost all day grazing. While grazing they are infected by different endoparasites through ingestion of infective eggs or larvae on pasture. READ MORE

  5. 5. Climate change effects on freezing damage in three subarctic bryophytes : A snow manipulation field experiment in a tundra ecosystem in Abisko, Sweden

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

    Author : Kristel van Zuijlen; [2015]
    Keywords : freezing damage; bryophytes; tundra; climate change; snow manipulation experiment;

    Abstract : Climate change is expected to have a large impact on northern ecosystems. Increased temperatures and altered precipitation and snow cover patterns will have a great impact on subarctic tundra. Bryophytes form an important component of tundra ecosystems because of their high abundance and their importance in many ecological processes. READ MORE