Essays about: "sex pheromone"

Showing result 1 - 5 of 6 essays containing the words sex pheromone.

  1. 1. Inbreeding decreases upwind pheromone : mediated male flight and frequency in female calling behavior in a lab culture of the pyraloid moth Plodia interpunctella

    University essay from Högskolan Kristianstad/Fakulteten för naturvetenskap

    Author : Per Heydorn; [2018]
    Keywords : Plodia interpunctella; Indian meal moth; lab culture; degeneration; inbreeding;

    Abstract : Semiochemicals are chemicals used to communicate. Animals tend to use these e.g. to locate food sources or to find a suitable mate. READ MORE

  3. 2. Separating the sexes : sexual conflict and how to resolve it

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Institutionen för ekologi och genetik

    Author : Aivars Cirulis; [2016]
    Keywords : Neurospora crassa; sexual conflict; hermaphrodite; sex; experimental evolution;

    Abstract : During the evolution of sex, different sexual conflicts arise. Sexual conflicts reduce fitness of the opposite sex. That is why several mechanisms have evolved to resolve them, which leads to rapid and unpredictable co-evolution of male and female traits involved in reproduction. READ MORE

  4. 3. Trapped in the forest: The longhorn beetle Tragosoma depsarium L. in south-east Sweden

    University essay from Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakulteten

    Author : Alexander Nilsson; [2015]
    Keywords : Tragosoma depsarium; scale; pine; pheromone; landscape variables;

    Abstract : The rare and elusive wood-living beetle Tragosoma depsarium, once widespread all over Sweden, is associated with large, sun-exposed pine logs required for breeding. Due to modern forestry and fire suppression, this type of substrate has become so rare in the landscape that the beetles’ existence in Sweden is threatened. READ MORE

  5. 4. Using sex pheromone and a multi-scale approach to predict the distribution of a rare saproxylic beetle

    University essay from Institutionen för fysik, kemi och biologi; Tekniska högskolan

    Author : Najihah Musa; [2012]
    Keywords : Conservation; Elater ferrugineus; habitat fragmentation; hollow deciduous trees; multi-scale approach; predicted distribution; sex pheromone;

    Abstract : The European red click beetle, Elater ferrugineus L., is associated with wood mould in old hollow deciduous tree. As a result of severe habitat fragmentation caused by human disturbance, it is threatened throughout its distribution range. READ MORE

  6. 5. Plume interaction and odour source spacing ofpheromone and non-host volatiles : : Behaviouraleffects on bark beetles and moths

    University essay from SLU/Dept. of Plant Protection Biology

    Author : Muhammad Binyameen; [2009]
    Keywords : Odour; plume structure; plume interactions; Spodoptera littoralis; S. litura; Ips typographus; Lepidoptera; Noctuidae; Coleoptera; Scolytidae; PID; orientation; sex pheromone; NHV ;

    Abstract : Insects have a remarkable ability to sense whether odours are released from one point source or from two closely separated ones. Therefore it is of interest to study the interactions of pheromone component odour plumes to affect the insect behaviour when the release points ofdifferent components are physically separated. READ MORE