Presence of Juvenile Club Moss (Lycopodiaceae) Sporophytes and Gametophytes in Relation to Vegetation Cover in Dry Pine Forests

Rimgailė-Voicik, Radvilė; Naujalis, Jonas Remigijus

doi:10.1640/0002-8444-106.4.242

Cited by 3 publications

(3 citation statements)

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“…Near Amherst, Massachusetts, USA, Degener ( 1924 ) collected 200 to 300 specimens of Lycopodium annotinum and Lycopodium clavatum gametophytes over a few afternoons in an area less than 1 m in diameter and subsequently emphasized that thousands of sporophytes can be present in a given area. Our research (Naujalis, 1995 ; Rimgailė‐Voicik and Naujalis, 2016 ) also showed that the development of gametophyte populations was asynchronous, and the size of gametophyte clusters might exceed 500 individuals in a 1‐m 2 sample area. Similarly, the data from research on Botrychium ferns showed that the number and density of subterranean individuals might substantially exceed the number of aboveground individuals, in a ratio of 700 : 1 (Johnson‐Groh et al, 2002 ).…”

Section: Analyzing Subterranean Gametophyte Population Structuresmentioning

confidence: 53%

“…We recommend that club moss researchers establish permanent monitoring sites to enable data collection on juvenile club moss competition. We evaluated a pilot site in Maskauka, Lithuania, every August from 2012 to 2015, recording the vegetation coverage and the location of juvenile sporophytes (Rimgailė‐Voicik and Naujalis, 2016 ). The size of the plot was 100 m 2 and the evaluation was performed on 1‐m 2 subplots marked with wooden dowels.…”

Section: Collecting Data On Subterranean Gametophyte and Juvenile Spo...mentioning

confidence: 99%

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Techniques for locating and analyzing subterranean Lycopodium and Diphasiastrum gametophytes in the field

Rimgailė-Voicik

Naujalis

2022

Appl Plant Sci

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Homosporous club mosses have an archaic life cycle, alternating two locationally, nutritionally, and physiologically independent generations. The sexual generation of club mosses—the gametophytes (or prothallia)—are among the least researched botanical subjects. The gametophytes are responsible for not only sexual reproduction, but also the determination of recruitment of the new sporophyte generation, species habitat selection, migration, and evolution. Researchers often fail to find juvenile club moss populations and thus do not discover subterranean long‐lived achlorophyllous gametophytes. To date, the gametophytes of most club moss species remain undiscovered in nature and are not scientifically documented. Almost all researchers who have previously located subterranean club moss gametophytes declared that their first find was due to luck and that subsequently the researcher's intuition plays the most important role; however, intuition and good luck are not scientific methods. In our review, we combine our knowledge with data available in the literature and discuss the following questions using a methodical approach: (1) How can we locate a subterranean club moss gametophyte population? (2) How can we extract the gametophytes? and (3) What new knowledge about club moss population development can be gained by analyzing juvenile club moss populations?

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Section: Analyzing Subterranean Gametophyte Population Structuresmentioning

confidence: 53%

Section: Collecting Data On Subterranean Gametophyte and Juvenile Spo...mentioning

confidence: 99%

Techniques for locating and analyzing subterranean Lycopodium and Diphasiastrum gametophytes in the field

Rimgailė-Voicik

Naujalis

2022

Appl Plant Sci

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“…Although L. clavatum is considered a light-demanding plant and is rarely found in sites with relative summer illumination of less than 40% (Ellenberg et al, 1991), this species can be vulnerable to physical damage. If the mature plants of L. clavatum and L. annotinum disappear, recovery is questionable because the juvenile populations can only emerge in sites with limited disturbance (Rimgailė-Voicik and Naujalis, 2016). The aforementioned species of PV and PVM forest types are the most sensitive to drastic changes of forest ecosystem after clear-cuts.…”

Section: Discussionmentioning

confidence: 99%

Initial impact of clear-cut logging on dynamics of understory vascular plants and pollinators in Scots pine-dominated forests in Lithuania

Česonienė¹,

Daubaras²,

Kaškonas³

et al. 2018

Turk J Agric For

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The development of understory plants and attendant changes of pollinators immediately after clear-cut logging were studied in boreal Scots pine forests. Experiments were carried out in Vacciniosa and Vaccinio-myrtillosa forest types. Considerable decline of the dwarf shrub layer confirmed the negative reaction of this dominated understory life form; however, the frequency dynamics of different vascular plants demonstrated species-specific response to changing environmental conditions. Because of rapid changes of light as well as damage of rhizomes by soil disturbances, the values of mean cover and frequency of the studied Ericaceae species decreased. We detected the most sensitive understory species to be Lycopodium annotinum, Arctostaphylos uva-ursi, and Goodyera repens; consequently, their preservation is possible only under sustainable forest resources exploitation. On the other hand, arrival of new light-demanding species caused increased pollinator visitation to focal ericaceous shrubs.

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Origin and Persistence of Lycopodium clavatum and Lycopodium annotinum (Lycopodiaceae) in Scots Pine Forests

Rimgailė-Voicik,

Voicikas,

Fediajevaitė

et al. 2024

Plants

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Understanding the growth dynamics of spore-bearing clonal plant sporophytes and the influence of abiotic and biotic factors is crucial for predicting the persistence of club moss populations and implementing effective habitat management techniques. Despite this, the longevity and development of club-moss populations are rarely studied. This study adopted an integrated approach to assess the probability of repetitive young sporophyte recruitment via sexual propagation in Lycopodium annotinum L. and Lycopodium clavatum L. The size–age problem of clonal spore-bearing forest plants and their niche segregation were addressed. The canopy characteristics, insolation, small-scale disturbance, and genetic polymorphism were studied in temperate semi-natural Scots pine forests in Lithuania. Based on the size of the clones discovered, we hypothesize that initial sporophyte emergence occurred in 20-year-old pine stands, with subsequent sporophyte emergence continuing over time. The emergence was related to small-scale disturbances. High genetic polymorphism indicates that all sporophyte stands studied likely emerged via sexual reproduction. According to Ellenberg values, L. annotinum is related to shady habitats, but our findings show both species coexisting abundantly in the more open habitat, supposedly more suitable for L. clavatum.No significant differences in vegetation relevés and light availability was detected using hemispheric images.

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Presence of Juvenile Club Moss (Lycopodiaceae) Sporophytes and Gametophytes in Relation to Vegetation Cover in Dry Pine Forests

Cited by 3 publications

References 30 publications

Techniques for locating and analyzing subterranean Lycopodium and Diphasiastrum gametophytes in the field

Techniques for locating and analyzing subterranean Lycopodium and Diphasiastrum gametophytes in the field

Initial impact of clear-cut logging on dynamics of understory vascular plants and pollinators in Scots pine-dominated forests in Lithuania

Origin and Persistence of Lycopodium clavatum and Lycopodium annotinum (Lycopodiaceae) in Scots Pine Forests

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