Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Liisa Halkka"'
Autor:
Liisa Halkka
Publikováno v:
Hereditas. 95:259-268
Previtellogenic oocytes of the dragonfly Cordulia aenea were studied before, during and after diapause by means of cytochemical, histochemical, electron microscopical and cinemicrographical methods. The secondary nucleolus (SN) consisted of a loose b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55eb30b6c823d33c813dd27b96aa067f
https://doi.org/10.1111/j.1601-5223.1981.tb01416.x
https://doi.org/10.1111/j.1601-5223.1981.tb01416.x
Publikováno v:
Hereditas. 78:73-84
Parts of the archipelago of the Baltic Sea are rising above the water level at a steady, slow rate. Plant species appear on the emerging islands in a definite order, and an early stage and a late stage can be distinguished in the development of meado
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::960f60adc1b19c90b8efc180ab642824
https://doi.org/10.1111/j.1601-5223.1974.tb01430.x
https://doi.org/10.1111/j.1601-5223.1974.tb01430.x
Publikováno v:
Hereditas. 76:305-314
Karyotypes from 14 males of Sorex araneus from Kuusijoki, NE Finland, were investigated and found to represent chromosome race C, as defined by Fredga in 1973. The population was found to be polymorphic and show frequencies of cytological types close
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4c99ebe74d899fcc73a71b5c03326ef
https://doi.org/10.1111/j.1601-5223.1974.tb01346.x
https://doi.org/10.1111/j.1601-5223.1974.tb01346.x
Publikováno v:
Hereditas. 78:85-96
Geographic variability in the colour polymorphism of Philaenus spumarius (Homoptera) was investigated in the northern parts of Finland, Norway and Sweden. The investigation was directed mainly at peripheral populations south of the Baltic—Arctic di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::140a6ee034544d1b95febf4e4cb5e453
https://doi.org/10.1111/j.1601-5223.1974.tb01431.x
https://doi.org/10.1111/j.1601-5223.1974.tb01431.x
Publikováno v:
Hereditas. 74:69-80
In Philaenus spumarius (Homoptera), colour polymorphism is mainly determined by a series of allelic genes. The dominance and co-dominance relationships of the following seven alleles were analysed: T (trilineatus), M (marginellus), F (flavicollis-F),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b84fc7369ae8072a92f80e05063c96a
https://doi.org/10.1111/j.1601-5223.1973.tb01105.x
https://doi.org/10.1111/j.1601-5223.1973.tb01105.x
Publikováno v:
Hereditas. 106:257-275
Halkka, L., Soderlund, V., Skaren, U. and Heikkila, J. 1987. Chromosomal polymorphism and racial evolution of Sorex araneus L. in Finland. —Hereditas 106: 257–275. Lund, Sweden. ISSN 0018–0661. Received October 2, 1986 Karyotypes of 197 Sorex a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e04b89036919158e7d5ccbd3279c2a6f
https://doi.org/10.1111/j.1601-5223.1987.tb00260.x
https://doi.org/10.1111/j.1601-5223.1987.tb00260.x
Publikováno v:
Global Change Biology. 12:2250-2262
The North Atlantic Oscillation (NAO) is a large-scale pattern of climate variability that has been shown to have important ecological effects on a wide spectrum of taxa. Studies on terrestrial invertebrates are, however, lacking. We studied climate-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e773fbea9dee3d609b347503d106e9fd
https://doi.org/10.1111/j.1365-2486.2006.01266.x
https://doi.org/10.1111/j.1365-2486.2006.01266.x
Publikováno v:
Biological Journal of the Linnean Society. 74:571-580
The influence of various evolutionary factors on the populations of the colour polymorphic meadow spittlebug, Philaenus spumarius (Homoptera), was investigated on islands in the Gulf of Finland. Long-term (30-year) investigations showed that the popu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b44b3f180a92760aeaf48d23078cb0c
https://doi.org/10.1111/j.1095-8312.2001.tb01414.x
https://doi.org/10.1111/j.1095-8312.2001.tb01414.x
Publikováno v:
Hereditas. 60:262-264
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::582a801ac1db727460153947ddc4ae69
https://doi.org/10.1111/j.1601-5223.1968.tb02206.x
https://doi.org/10.1111/j.1601-5223.1968.tb02206.x
Publikováno v:
Nordic Journal of Botany. 12:651-655
Chromosome numbers from 17 Finnish populations of six taxa in the Carex flava complex were examined. Special attention was given to taxa claimed to be endemic to Fennoscandia. The meiotic counts for C. flava n = 30, C. viridula var. viridula n = 35 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81542ceb6b9082a2c0b614008d06b531
https://doi.org/10.1111/j.1756-1051.1992.tb01841.x
https://doi.org/10.1111/j.1756-1051.1992.tb01841.x