Essays about: "mammal"

Showing result 16 - 20 of 57 essays containing the word mammal.

  1. 16. Protecting the proper Baltic harbour porpoise : An evaluation of Sweden’s conservation plan

    University essay from Malmö universitet/Institutionen för Urbana Studier (US)

    Author : Isabelle Faringstam; [2021]
    Keywords : Conservation; Evaluation; Rationality; Efficiency; Harbour porpoise; Sweden; Artbevarande; Utvärdering; Rationalitet; Effektivitet; Tumlare; Sverige;

    Abstract : More than a third of the earths marine mammal species are threatened. This study aims to analyze and evaluate the conservation of the proper Baltic harbour porpoisein Sweden. The population is estimated to consist of only 500 individuals and are likely to be extinct if measures are not taken. READ MORE

  3. 17. Development of northern pike (Esox lucius) populations in the Baltic Sea, and potential effects of grey seal (Halichoerus grypus) predation

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecka Svensson; [2021]
    Keywords : diet analysis; ; marine mammals; predator-prey; socio-economic; sport fishing; recreational fisheries;

    Abstract : Worldwide, marine mammal populations are increasing after considerable efforts to turn the downward trends caused by hunting, accidental mortality and pollution. The ecosystem effects from the increases of these top predators may be pronounced, but are in most cases poorly known. READ MORE

  4. 18. Study of the Taxonomy of Carnivores from the Eocene-Oligocene of the Quercy Area, France

    University essay from Uppsala universitet/Paleobiologi

    Author : Julien van der Hoek; [2021]
    Keywords : Quercy; Carnivora; Amphicyonidae; Eocene; Oligocene; taxonomy;

    Abstract : The Quercy area of France is an important site for mammal palaeontology, yet 19th century collections of this area, such as the one in the Department of Palaeobiology, Naturhistoriska riksmuseet, remain understudied due to not being well updated taxonomically and correlated stratigraphically. An updated taxonomy was created for the postcranial material of the collections, as well as the dental material originally identified to the amphicyonid genera Amphicyon, Haplocyon and Pseudocyon through study of morphological characteristics and measurements. READ MORE

  5. 19. The direct and indirect relation between ungulates on small mammals

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

    Author : Michael Wentzel; [2020]
    Keywords : small mammals; ungulates; vegetation cover; food competition; path analysis; direct; indirect; canopy cover; Sweden;

    Abstract : Ungulates are increasing in Europe, including Sweden and can cause changes to forest structure and forest-dwelling animals. This study is focused on the relation between various ungulate species and small mammal abundance in Swedish forests, through the alteration of ground vegetation cover and directly through food competition. READ MORE

  6. 20. Establishment of analytical methods to assess endocrine disrupting compounds in a swedish wastewater treatment plant : water sampling using the Novel TIMFIE Device

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Annika Niemeyer; [2019]
    Keywords : organic micro-pollutants; steroid hormones; mass spectrometry; influent and effluent waters; chemical releases;

    Abstract : Imagine one drop of food coloring in 70 million liters of water. This low concentration equals one nanogram per liter, which is the level most steroid hormones are effective at. READ MORE