Essays about: "mating structure"

Showing result 1 - 5 of 7 essays containing the words mating structure.

  1. 1. Body patterning and cognition in cephalopods - a literature review

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

    Author : Georgina Chu; [2023]
    Keywords : cephalopods; octopus; body patterning; colour alteration; chromatophores; pigment cells; cognition; learning and memory;

    Abstract : Cephalopods are a valuable model for studying the evolution of cognition due to their distinctive brain structure, organisation, and connectivity patterns compared to vertebrates. The development of large brains and behavioural complexities are believed to be triggered by evolutionary pressures stemming from factors like heightened predation, more demanding foraging conditions, and intense mating competition. READ MORE

  3. 2. Calibration and Estimation of Dog Teeth Positions in Synchronizers for Minimizing Noise and Wear during Gear Shifting

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Qianyin Kong; [2020]
    Keywords : Synchronizer engagement; gear shifting; dog teeth; particle swarm optimization; Synkroniserare; Växling; Dog-teeth; Partikelsvärmoptimering;

    Abstract : Electric motors are used more widely in automotive to reducing emissions in vehicles. Due to the decreased usage of internal combustion engines which used to be the main noise source, impacts from synchronizers cannot be ignored during gear shifting, not only causing noise and wear but also delaying gear shifting completion. READ MORE

  4. 3. Population biology and ecology in the rare and endangered Hapalopilus croceus.

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Deanne Greaves; [2017]
    Keywords : mycology; population biology; fungal genetics; endangered fungi; hapalopilus; oak fungi; saffransticka; eksvamp;

    Abstract : Landscape management has altered the population dynamics of many species residing in old growth ecosystems. As a result, fragmentations in residual old oak habitats in Sweden have led to the decline of endangered and long-lived polypores including the bright orange Hapalopilus croceus. READ MORE

  5. 4. Pride and prejudice : extra-group paternity in lions and the effects of marker density on kinship and relatedness estimates

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

    Author : Julia Jansson; [2017]
    Keywords : lion; mating structure; extra-group paternity; Single Nucleotide Polymorphism SNP ; marker density; panthera leo;

    Abstract : The development effective high-throughput sequencing techniques has allowed further insight to the mating systems of wild animal populations and challenged our perception that reproductive behaviour can be predicted from social structure. A recent study of lions (Panthera leo) in Etosha National Park, Namibia, found evidence of extra-group paternity (EGP) which has never before been confirmed among lions. READ MORE

  6. 5. Evolving Neuromodulatory Topologies for Plasticity in Video Game Playing

    University essay from Blekinge Tekniska Högskola/Institutionen för programvaruteknik

    Author : Jimmy Gustafsson; [2016]
    Keywords : Neuromodulation; Neural Networks; Neuroevolution; Lifelong Learning; Neuromodulation; Neurala Nätverk; Neuroevolution; livslångt lärande;

    Abstract : In the last decades neural networks have become more frequent in video games. Neuroevolution helps us generate optimal network topologies for specific tasks, but there are still still unexplored areas of neuroevolution, and ways of improving the performance of neural networks, which we could utilize for video game playing. READ MORE