University of Helsinki—Evolutionary Ecology

Maarit haataja (o.s. pahkala)

Publications

15. Pahkala, M., Laurila, A., and Merilä, J. 2003. Effects of ultraviolet-B radiation on larval amphibians. Chemosphere 51:197-204. PDF

14. Pahkala, M., Merilä, J., Ots, I., and Laurila, A. 2003. Effects of ultraviolet-B radiation on metamorphic traits in the common frog Rana temporaria. Journal of Zoology, London, 259:57-62. PDF

13. Räsänen, K., Pahkala, M., Laurila, A., and Merilä, J. 2003. Does jelly envelope protect the eggs of the common frog Rana temporaria embryos from UV-B radiation? Herpetologia 59:293-300. PDF

12. Pahkala, M., Räsänen, K., Laurila, A., Johanson, U., Björn, L. O. and Merilä, J. 2002. Lethal and sub-lethal effects of UV-B/pH synergism on common frog embryos. Conservation Biology 16:1063-1073. PDF

11. Pahkala, M., Laurila, A., and Merilä, J. 2002. Effects of ultraviolet-B radiation on development of common frog Rana temporaria embryos along a latitudinal gradient. Oecologia 133:458-465. PDF

10. Pahkala, M., Laurila, A., Björn, L. O. and Merilä, J. 2001. Effects of ultraviolet-B radiation and pH on early development of the moor frog Rana arvalis. Journal of Applied Ecology 38:628-636. PDF

9. Pahkala, M., Laurila, A. and Merilä, J. 2001. Carry-over effects of ultraviolet-B radiation on larval fitness in Rana temporaria. Proceedings of the Royal Society of London B 268:1699-1706. PDF

8. Pahkala, M., Laurila, A. and Merilä, J. 2000. Ambient ultraviolet-b radiation reduces hatchling size in the common frog Rana temporaria. Ecography 23:531-538. PDF

7. Kenward, R. E., Walls, S. S., Hodder, K. H., Pahkala, M., Freeman, S. N. and Simpson, V. R. 2000. The prelevance of non-breeders in raptor populations: evidence from rings, radio-tags and transect surveys. Oikos 91:271-279.

6. Merilä, J., Laurila, A., Timenes Laugen, A., Räsänen, K. and Pahkala, M. 2000. Plasticity in age and size at metamorphosis in Rana temporaria – comparison of high and low latitude populations. Ecography 23:457-465. PDF

5. Merilä, J., Laurila, A., Timenes Laugen, A., Räsänen, K. and Pahkala, M. 2000. Adaptive phenotypic plasticity in timing of metamorphosis of the common frog (Rana temporaria). EcoScience 7:18-24.

4. Merilä, J., Laurila, A. and Pahkala, M. 2000. Effects of ambient UV-B radiation on early development of the common frog (Rana temporaria) embryos in the subartic. Annales Zoologici Fennici 37:51-58. PDF

3. Merilä, J., Pahkala, M. and Johanson, U. 2000. A frog perspective to increased ultraviolet-B radiation, climate change and latitudinal adaptation. Annales Zoologici Fennici 37:129-134.  PDF

2. Wiehn, J., Ilmonen, P., Korpimäki, E., Pahkala, M. and Wiebe, K. 2000. Hatching asynchrony in the Eurasian kestrel Falco tinnunculus: an experimental test of the brood reduction hypothesis. Journal of Animal Ecology 69:85-95.

1. Tornberg, R., Mönkkönen, M. and Pahkala, M. (1999). Changes in diet and morphology of Finnish goshawks from 1960s to 1990s. Oecologia 121:369-376. PDF

 

Other publications:

3. Pahkala, M. 2001. Evolutionary ecology of ultraviolet-B radiation stress tolerance in amphibians. PhD thesis, Uppsala University.

2. Pahkala, M. 1998. Ultraviolet-B radiation stress and amphibian development. Introductory research essay, Department Zoology, Section of Population Biology, Uppsala University.

1. Pahkala, M. 1997. The line-transect and the radio-tagging method for estimating the numbers of Buzzards (Buteo buteo) in southern Dorset, England. M.Sc. thesis, University of Oulu.