Essays about: "predators"

Showing result 16 - 20 of 238 essays containing the word predators.

  1. 16. SPATIO-TEMPORAL PATTERNS OF THE WOLF AND ITS PREY IN A MEDITERRANEAN AREA

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Giovanni Fini; [2022-08-29]
    Keywords : ;

    Abstract : Starting from the 1970s, populations of top predators such as the wolf Canis lupushave been expanding across Europe thanks to the protective legislation andthe creation of many protected areas, the increased abundance of wild ungulates and other factors. The return of these animals can trigger significant consequences from the ecological as well as management points of view. READ MORE

  3. 17. A Generic Model of Motivation in Artificial Animals Based on Reinforcement Learning

    University essay from Göteborgs universitet/Institutionen för data- och informationsteknik

    Author : Birger Kleve; Pietro Ferrari; [2022-05-06]
    Keywords : reinforcement; learning; reward; shaping; animat; homeostasis; ecosystem; motivation;

    Abstract : This thesis is a part of a broader research project at Chalmers University of Technology focused on ecosystems’ simulations using reinforcement learning artificial animals, called animats. The scope of this project is to provide animats with a reward signal which should ultimately drive animats’ learning towards adaptation of their environment. READ MORE

  4. 18. Bear in mind! A study about the effect of bear predation on the choice of calving site and site fidelity by female moose in Sweden

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

    Author : Lisa Dijkgraaf; [2022]
    Keywords : moose Alces alces ; brown bear Ursus arctos ; predation; calving site; site fidelity;

    Abstract : Selecting a suitable calving site is important for ungulates, especially when predators are present. Brown bears (Ursus arctos) predate on moose calves (Alces alces) and therefore influence the reproductive success of the moose. READ MORE

  5. 19. Biologisk bekämpning av rotgallnematoderna Meloidogyne chitwoodi & Meloidogyne fallax

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Ellen Johansson; [2022]
    Keywords : Växtparasitära nematoder; Sedentära nematoder; Tillsättande biologisk bekämpning; Pasteuria spp.;

    Abstract : Bland de växtparasitära nematoderna är släktet rotgallnematoder ett av de ekonomiskt sett mest betydelsefulla. I Sverige har ett flertal arter av rotgallnematoder påträffats och bland de som senast påträffats hör Meloidogyne chitwoodi och M. fallax som upptäcktes i Sverige år 2017 respektive 2018. Meloidogyne chitwoodi och M. READ MORE

  6. 20. Aktivitetsmönster och boskapspredation hos lejon (Panthera leo) i förhållande till olika miljöfaktorer

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

    Author : Elvira Karjel; [2022]
    Keywords : lejon; Panthera leo; aktivitetdygnsrytm; månfas; molntäcke; nederbörd; regn; jaktlycka; boskap; nötkreatur; predation;

    Abstract : The lion is one of few large predators that have suffered terrible population losses over the past two decades. As a result of this lions are now considered vulnerable on the IUCN Redlist, and on their way towards becoming endangered. The estimated number of individuals is approximately 32 000 today, and the majority are found in Africa. READ MORE