Showing 61 - 80 results of 130 for search 'two species', query time: 0.10s Refine Results
  1. 61

    Moottorikelkkailun vaikutukset suokasvillisuuteen by Äikäs, Michelle

    Published 2023
    “…The aim of this research was to investigate what kind of effects snowmobiling has on peatland vegetation, how snowmobiling affects the number of species of peatland plants and the species composition of the plant community and has the compaction of the now any impact on the number of species in peatlands. …”
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    Master's thesis
  2. 62

    Maankäytön vaikutus kuminapeltojen kukkakärpäsiin (Syrphidae) ja muihin pölyttäjiin by Toikkanen, Jenni

    Published 2017
    “…In landscape ecology, researchers explore how landscape structure affects species diversity. Habitat heterogeneity -hypothesis states that structurally heterogeneous landscapes have more different resources and conditions than simple landscapes, which increases the species diversity. …”
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    Master's thesis
  3. 63

    Ympäristön vaikutus rantavyöhykkeen pohjaeläimistöön Puruveden Hummonselällä by Mäkinen, Teemu

    Published 2019
    “…The density of individuals and the diversity of benthic invertebrates significantly increased with the increasing percentage coverage of stones and vegetation. Species richness increased with increasing proportion of fine sediments, and density, species richness and diversity of macroinvertebrates correlated positively with periphyton abundance. …”
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    Master's thesis
  4. 64

    Interactions between faunal community and decomposition processes in relation to microclimate and heterogeneity in boreal forest soil by Sulkava, Pekka

    Published 2001
    “…They were incubated at different moistures and temperatures and they contained different food webs of soil organisms, depending on the aims of the experiment. In two experiments, microcosms contained humus and four different litter materials, either separately in four patches or mixed with each other in one patch. …”
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    Doctoral dissertation
  5. 65

    Kahden lajin kasvatuksen vaikutus mikrolevien kykyyn poistaa ravinteita kalojen kiertovesikasvatuksen jätevedestä by Pudas, Aaro

    Published 2021
    “…Based on preliminary results I chose two green microalgae species to be used in my experiments: Selenastrum sp. and Monoraphidium griffithii. …”
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    Master's thesis
  6. 66

    Human disturbance on Polylepis mountain forests in Peruvian Andes by Raudaskoski, Anna

    Published 2014
    “…From about 30 Polylepis species approximately half is classified as vulnerable. …”
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    Master's thesis
  7. 67

    Costs and benefits of pyrrolizidine alkaloid sequestration in the wood tiger moth (Arctia plantaginis) by Mähönen, Marjut

    Published 2022
    “…These results increase our knowledge about the capability of a generalist species to handle PA compounds. …”
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    Master's thesis
  8. 68

    Kantojen korjuu metsänuudistamisessa : vaikutus maaperän hajottajaeläimistöön by Mensonen, Kirsi

    Published 2015
    “…This appeared in decreased numbers of species and in the fall also in lowered diversity of the communities. …”
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    Master's thesis
  9. 69

    Aerobic anoxygenic phototrophic bacteria and their photosynthetic membranes : imaging from macro- to nanoscale by Franz, Ole

    Published 2022
    “…Previous research has focused on aquatic AAP bacteria, revealing new species, and developing hypotheses for their impact. …”
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    Master's thesis
  10. 70

    The effects of sex pheromone on female attractiveness and its role in maintaining color polymorphism in Arctia plantaginis by Selenius, Eetu

    Published 2021
    “…Wood tiger moth males in Finnish populations maintain two color morphs: white and yellow. The coloration is determined by one locus two allele mode of inheritance with a dominant allele for white (W) and a recessive allele for yellow coloration (y). …”
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    Master's thesis
  11. 71

    Fitting Generalized Linear Latent Variable Models using the method of Extended Variational Approximation by Korhonen, Pekka

    Published 2020
    “…Ecologists are often concerned with the relationships between two or more species across a multiple test sites. …”
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    Master's thesis
  12. 72

    Täpläravun (Pacifastacus leniusculus) ja jokiravun (Astacus astacus) vaikutukset pienten järvien litoraalivyöhykkeen surviaissääskiyhteisöihin by Kosola, Eeva

    Published 2024
    “…The aim of this study was to investigate the effects of the two crayfish species on chironomid abundance, community diversity and composition in the shallow littoral zone of lakes. …”
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    Master's thesis
  13. 73

    Cell entry and early infection of Echovirus 30 by Kantoluoto, Tino Ville Valtteri

    Published 2020
    “…E30-infektion osoitettiin myös etenevän nopeasti, sillä sen RNA-genomi alkoi replikoituimaan jo 2,5 tunnin jälkeen. Myös isäntäsolun solulimakalvostossa osoitettiin tapahtuvan muutoksia jo 2 tunnin jälkeen. …”
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    Master's thesis
  14. 74

    Piirtämisen mahdollisuudet kasvien lajintuntemuksen opetuksessa by Holopainen, Venla

    Published 2015
    “…Attitudes towards and about drawing were also studied. Two classes of pupils aged 15–16 took part to the study. …”
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    Master's thesis
  15. 75

    Fenologian vaikutus aposemaattisen täpläsiilikkään (Arctia plantaginis) värimuotojen saalistuspaineeseen by Siirilä, Tuisku

    Published 2023
    “…Predation is a significant selection pressure on populations of prey species and as a result many species have evolved different defense mechanisms against predators. …”
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    Master's thesis
  16. 76

    Studies on the mechanisms of lead neurotoxicity and oxidative stress in human neuroblastoma cells by Naarala, Jonne

    Published 1997
    “…Excitotoxicity and oxidative stress are two phenomena that have repeatedly been described as being involved in a wide range of disorders of the nervous system including epilepsy, ransient cerebral ischemia, Alzheimer's disease, Parkinson's disease and Huntington's disease. …”
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    Doctoral dissertation
  17. 77

    Vedenpinnan tason vaikutus ennallistettujen soiden kasvillisuuden kehittymiseen by Jantunen, Aapo

    Published 2024
    “…The effect was often seen only in two years. I also found that restoration affected all the studied plant species. …”
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    Master's thesis
  18. 78

    Effects of artificial circulation as a lake management tool on profundal macroinvertebrate community by Adoga, Emmanuel

    Published 2019
    “…In this study, I examined the impacts of artificial circulation on profundal macroinvertebrate community abundance, diversity and species composition in two lakes, using annual time series data on invertebrates from 2004 to 2017. …”
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    Master's thesis
  19. 79

    Tienpientaret ylläpitävät perinnebiotooppien hämähäkkilajiston monimuotoisuutta by Jokinen, Valtteri

    Published 2020
    “…It turned out, however, that pastures are slightly more species-poor than the other two habitats. From the perspective of the conservation of traditional bioptopes, the more important observation was that road verges are even more diverse than meadows. …”
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    Master's thesis
  20. 80

    Turve- ja metsätalouden vaikutukset kahden metsäjärven ekosysteemiin : paleolimnologinen piileväanalyysi by Nikolajev-Wikström, Leena

    Published 2015
    “…In this study, ecosystem changes influenced by peat production and other land use were studied in two central Finland forest lakes, Martinjärvi and Iso Kivijärvi. …”
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    Master's thesis
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