Organization of club moss gametophytes and juvenile sporophyte populations in pine forests

• Autorzy: Rimgaile-Voicik R. , Naujalis J.R. , Voicikas A.
• Języki publikacji: EN

Abstrakty

EN

Initial populations of club mosses were investigated in pine forests of southern Lithuania (ass. Cladonio-Pinetum and Vaccinio vitis-idaeae-Pinetum). Results show that populations of lycophyta gametophytes in some forest sites can be abundant (up to 500 individuals in a square meter). All juvenile populations were found in localities where recorded tree canopy cover was 30% or less. Localization of subterranean gametophyte populations was determined by juvenile club mosses. We mapped locations of all Lycopodium L. and Diphasiastrum Holub. juvenile sporophytes and gametophytes that occurred within three randomly selected and excavated 0.25 m² sample plots at four pine forest sites in different localities in southern Lithuania. The developmental stage of each individual was recorded. Eight out of twelve soil samples from four research localities contained subterranean gametophytes. In total 277 gametophytes and 124 juvenile sporophytes were recorded. The developmental stage and size of the gametophytes varied. Gametophytes were divided into six categories on the basis of external features. Spatial distribution of gametophytes and juvenile sporophytes were evaluated using a nearest neighbor analysis (NNA). Our results suggest that initial populations of gametophytes in pine forests are multi-aged and display a relatively stable degree of spatial aggregation. Greater aggregation occurred among juvenile sporophytes.

Słowa kluczowe

EN

clubmoss; gametophyte; pine forest; sporophyte; nearest neighbour analysis; spatial aggregation; Lycopodium annotinum; Diphasiastrum; Lithuania

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2015
• Tom: 63
• Numer: 4
• Opis fizyczny: p.467-480,fig.,ref.

Twórcy

autor

Rimgaile-Voicik R.

• Department of Botany and Genetics, Vilnius University, Ciurlionis str. 21, Vilnius, Lithuania

autor

Naujalis J.R.

• Department of Botany and Genetics, Vilnius University, Ciurlionis str. 21, Vilnius, Lithuania

autor

Voicikas A.

• Department of Neurobiology and Biophysics, Faculty of Natural Sciences, Vilnius University, Ciurlionis str. 21, Vilnius, Lithuania

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Identyfikatory

DOI

10.3161/15052249PJE2015.63.4.001