Sökning: "bush-cricket"

Hittade 4 uppsatser innehållade ordet bush-cricket.

1. 1. Polyandry and genetic diversity in populations of Pholidoptera griseoaptera along an environmental gradient

   Kandidat-uppsats, SLU/Dept. of Ecology

   Författare :Matilda Jutzeler; [2019]
   Nyckelord :polyandry; genetic diversity; multiple mating; microsatellites; nuptial gift; phenotype;

   Sammanfattning : Polyandry is a common mating pattern in different insect species and it leads to increased genetic diversity in the offspring and prevents inbreeding in populations. According to the theory of mate choice, mates should choose a partner that will increase heterozygosity in their offspring. LÄS MER

3. 2. The effect of agricultural land-use on bush-cricket and grasshopper diversity

   Kandidat-uppsats, SLU/Dept. of Ecology

   Författare :Filippa Holmér; [2017]
   Nyckelord :Orthoptera; grasshopper; bush-cricket; land use; land cover; agriculture; fragmentation;

   Sammanfattning : The amount of habitat suitable for grasshoppers and crickets has decreased due to the human expansion and use of the Swedish agricultural landscape. This literature study covers the effect on grasshopper – and cricket diversity from different features on grassy field islands and the surrounding agricultural landscape. LÄS MER

4. 3. Latitudinal patterns in body size of Roesel’s bush cricketMetrioptera roeselii within and outside the continuous area of its distribution

   Magister-uppsats, SLU/Dept. of Ecology

   Författare :Frida Holma; [2009]
   Nyckelord :Metrioptera roeselii; inbreeding depression; latitudinal pattern;

   Sammanfattning : Over time, species colonize new areas naturally or through humans. The colonizers areoften few and founded populations represent only a fraction of the genetic diversityexisting in the original population. LÄS MER

5. 4. Microhabitat, phenology and diversity of Orthoptera in a seminatural pasture

   L3-uppsats, SLU/Dept. of Crop Production Ecology

   Författare :Björn Forsberg; [2004]
   Nyckelord :Orthoptera; habitats; grazing systems; grasslands; Chorthippus parallelus; Omocestus viridulus; Harpsund;

   Sammanfattning : I have, as a part of HagmarksMistra, studied how conditions for orthopterans differ between two grazing regimes in a seminatural pasture in Harpsund, Södermanland, Sweden. The two grazing regimes were continuous grazing during the whole season and late grazing starting in late July. LÄS MER