Demographic Studies of Homosporous Fern Populations in South Siberia

Gureyeva, I. I.

doi:10.1007/978-94-017-2811-9_24

Cited by 6 publications

(11 citation statements)

References 8 publications

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“…Life stages were similar for both species and are similar to those used in various previous studies on fern population dynamics (Gureyeva, 2003;Bremer and Jongejans, 2010). One gametophyte stage and six sporophyte stages were distinguished (Table 2).…”

Section: Life Stages and Transition Matrix Construction-onmentioning

confidence: 61%

“…On the basis of the data gathered, we assigned individuals to one of seven life stages, designed to represented different ontogenetic stages in the life history of the species ( Sharpe and Mehltreter, 2010 ). Life stages were similar for both species and are similar to those used in various previous studies on fern population dynamics ( Gureyeva, 2003 ;Bremer and Jongejans, 2010 ). One gametophyte stage and six sporophyte stages were distinguished ( Table 2 ).…”

Section: Life Stages and Transition Matrix Construction -mentioning

confidence: 99%

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Variation in ploidy level and phenology can result in large and unexpected differences in demography and climatic sensitivity between closely related ferns

Groot

Zuidema

Groot³

et al. 2012

American J of Botany

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Section: Life Stages and Transition Matrix Construction-onmentioning

confidence: 61%

Section: Life Stages and Transition Matrix Construction -mentioning

confidence: 99%

Variation in ploidy level and phenology can result in large and unexpected differences in demography and climatic sensitivity between closely related ferns

Groot

Zuidema

Groot³

et al. 2012

American J of Botany

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“…Gametophyte development initially depends on micro-site availability for spore germination [10]. Spore germination is probably influenced by irradiance gradients, with gametophyte growth and survival then driven by available phosphorus and irradiance, coupled with surface moisture [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Spore germination is probably influenced by irradiance gradients, with gametophyte growth and survival then driven by available phosphorus and irradiance, coupled with surface moisture [11][12][13]. Gametophyte morphology and reproduction are partially influenced by gametophyte density and, in some taxa, antheridiogen production and inter-gametophyte chemical interactions [10,[14][15][16][17]. A study of Cyathea podophylla (distribution Taiwan-Cambodia) shows an absence of antheridiogens in this species; however, whether this absence is conserved across Cyathea is unknown [4].…”

Section: Introductionmentioning

confidence: 99%

Gametophyte niche differences among sympatric tree ferns

et al. 2019

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Forest community assembly is usually framed in terms of sporophyte dynamics; however, the recruitment and maintenance of fern populations, frequently influential in forest composition and structure, are initially determined by gametophytes. Sporophytes of three Cyathea tree fern species show habitat partitioning along gradients of phosphorus and light; we asked whether gametophyte niche differences parallel this pattern. To compare niche characteristics among taxa we compared growth rates to a size threshold (!3 mm) of gametophytes under controlled conditions using a multi-factorial, multi-level (3 Â 4) experiment, varying irradiance (5.4 + 4.4; 59.1 + 44.3; 107 + 74.1 mmol m 22 s 21 ) and orthophosphate concentrations (5, 10, 20, 40 mg kg 21 ). Gametophytes of the pioneer species C. medullaris developed to the size threshold across a broad range of phosphate and irradiance treatments (more than 20% of gametophytes in ! 7 of the 12 treatments), peaking at 20 mg kg 21 P and 60 mmol m 22 s 21 irradiance. The growth rates of the forest understorey species C. dealbata and C. smithii also peaked at 60 mmol m 22 s 21 but varied across treatments, suggesting niche differentiation along irradiance and orthophosphate gradients. Our analysis suggests that gametophyte development is strategically aligned to the ecological habits of sporophytes and that forest community assembly is likely strongly influenced by the independent gametophyte life-stage.

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“…Such species as Matteuccia struthiopteris may be less capable of long-distance dispersal and formation of the viable population via spore way. The proof of the complete absence of spore reproduction in populations of M. struthiopteris are our many-years of field investigations of the demographic structure of native populations of this species, growing in the Siberian mountain forests (Gureyeva, 2001(Gureyeva, , 2003(Gureyeva, , 2007. Despite accurate searches, we have not found gametophytes of M. struthiopteris in any of the studied populations.…”

Section: Introductionmentioning

confidence: 99%

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Supplemental Information 3: Demographic Structure of Matteuccia Struthiopteris Population Dataset

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Matteuccia struthiopteris (L.) Tod.-Ostrich fern (Onocleaceae) is the circumboreal species widely distributed in the temperate zone of the northern hemisphere. In the paper, we presented the results of the observations on the developing population of M. struthiopteris on the man-made lawn situated in the University Grove of Tomsk State University (Tomsk, Russian Federation). In the original making of the lawn, the ground was replaced by new rich soil, which was taken in early summer of 2007 from a native site situated 6.65 km towards southwest from Tomsk University. The formation of the plant community on the new lawn occurred mostly naturally, and sporophytes of this fern appeared naturally. The first sporophytes on the new lawn were detected in 2009, occurring initially in the significant numbers, recorded here. During the time of observation (2009-2018) the number of sporophytes decreased from an original 263 to 96, i.e. 63.5% of sporophytes died. The initial population in 2009 included only juvenile sporophytes. No spore-bearing sporophytes appear during the period of observation. For detection of the source of spores, from which the population on the lawn was formed, we selected three populations having fertile sporophytes, and conducted a molecular-genetic analysis. Two of the analyzed source populations were found to be situated at 160-365 m distance from the developing population and one population occurs near the place where the soil for new lawn making was taken. We used the ISSR method for analyzing the genetic diversity of populations and processed the results by software STRUCTURE Version 2.3.4. The result show, that new population, and population from the soil taking point belong to the same group. The coefficient of Nei's genetic identity between these populations is high (I = 0.931). This confirms the origin of the new population from spores contained in the soil used for the lawn construction.

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Demographic Studies of Homosporous Fern Populations in South Siberia

Cited by 6 publications

References 8 publications

Variation in ploidy level and phenology can result in large and unexpected differences in demography and climatic sensitivity between closely related ferns

Variation in ploidy level and phenology can result in large and unexpected differences in demography and climatic sensitivity between closely related ferns

Gametophyte niche differences among sympatric tree ferns

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