Essays about: "extinction"

Showing result 1 - 5 of 148 essays containing the word extinction.

  1. 1. Analyzing Factors Influencing Reproductive Success of the Mountain Chicken : Nordens Ark Captive Breeding Program

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Chad Donaldson; [2019]
    Keywords : frog; frogs; mountain chicken; mountain chicken frog; leptodactylus; fallax; herpetology; amphibian; amphibians; multiple linear regression; statistical analysis; Nordens Ark; captive breeding; zoo; zoology; conservation; endangered species; grodor; groda; kycklinggroda; Nordens Ark; amfibier; zoologi; herpetologi; analys; hotade arter; bevarande; avel;

    Abstract : Amphibians globally are declining with roughly a third facing extinction due primarily to threats linked to human impacts. One way in which this is being combated is by captive breeding programs. READ MORE

  2. 2. Vilket är det största hotet mot den afrikanska elefanten (Loxodonta spp.)?

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

    Author : Lisa Mattsson; [2019]
    Keywords : afrikansk elefant; bevarande; skogsskövling; konflikt elefant-människa; tjuvjakt;

    Abstract : Den afrikanska elefanten är jordens största landlevande däggdjur. Det finns två olika varianter: afrikansk stäppelefant (Loxodonta africana) och afrikansk skogselefant (Loxodonta cyclotis). De afrikanska elefanterna är grundpelare i ekosystem genom att bland annat visa vägen till vatten och mat för både djur och människor. READ MORE

  3. 3. Det sjätte massutdöendet : hinner vi lära oss leva ansvarsfullt innan Big Six inträffar?

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

    Author : Johan Öhrmalm; [2019]
    Keywords : massutdöende; massutrotning; biologisk mångfald; biodiversitet; jämställdhhet; familjeplanering; befolkningsutveckling; miljöförstöring; korruption;

    Abstract : Människans påverkan på naturen har fått stora konsekvenser, direkt i form av jakt, fiske och skogsavverkning för jordbruk, och indirekt genom global uppvärmning pga. växthusgaser. Biotoper för vilda djur minskar, vilket leder till minskning av den biologiska mångfalden. READ MORE

  4. 4. Modelling the Potential Distribution of Golden Eagle Based on Maximum Entropy : The Experimental Cases of Sweden and Norway

    University essay from Högskolan i Gävle/Datavetenskap

    Author : Junias Tchamba; [2018]
    Keywords : ;

    Abstract : Species extinction is a major concern that affect all countries and continents. Norway and Sweden are not spared by these concerns. Therefore, several studies have led to creating a better understanding about the factors which contribute to the expansion of specific species such as the golden eagle among others. READ MORE

  5. 5. Palaeoentomological reconstruction of the environment during the Late Quaternary : A comparison between living species in Europe and regionally extinct in British Isles

    University essay from Umeå universitet/Institutionen för idé- och samhällsstudier

    Author : Genovefa Kourela; [2018]
    Keywords : Late Quaternary; BugsCep; Extinct species; Extant species; beetle habitats;

    Abstract : During the Late Quaternary, abrupt climate and cultural changes took place and made alternations to the past landscape. Climatic phenomena such as expand of ice masses,sea level rise, high and low temperatures, migration of humans, decline and increase of forest areas and more changes were the reason of changing the biodiversity of species and the formation of the land. READ MORE