Population and community ecology of bryophytes

Rydin, Håkan

doi:10.1017/cbo9780511754807.011

Cited by 50 publications

(53 citation statements)

References 157 publications

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“…Soil temperature and humidity can have a more direct effect on the propagule bank than the measured air temperature and humidity, but these variables are strongly related. Our findings that the potassium content had a negative effect, while soil and litter pH had a positive influence on the germination of the diaspore bank propagules have been supported by a number of studies (During, 1979(During, , 1997 Schofield, 1985;Risse, 1987;Wiklund & Rydin, 2004;Caners et al, 2009;Rydin, 2009;Maciel-Silva et al, 2012). Light is a very important environmental variable for the forest bryophyte vegetation (Wiklund & Rydin, 2004;Kimmerer, 2005;Caners et al, 2009), but our results show that it was not a significant environmental variable for the diaspore bank.…”

Section: Multivariate Analysis Of the Diaspore Banksupporting

confidence: 73%

“…The production of spores is usually strongly seasonally determined (Hock et al, 2004), while the production of asexual diaspores is usually much less seasonal (During, 1997(During, , 2001. In contrast to the seed bank of phanerogams, the bryophyte diaspore bank is dominated by asexual propagules (During, 1997(During, , 2001; Longton, 1997;Söderström & Herben, 1997;LaakaLindberg, 1999;Rydin, 2009). Bryophytes are classified into life strategy types, based on the life span, reproductive effort of the gametophyte, and size and abundance of spores (During, 1979(During, , 1992.…”

Section: Introductionmentioning

confidence: 99%

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Environmental drivers of the bryophyte propagule bank and its comparison with forest-floor assemblage in Central European temperate mixed forests

Kövendi-Jakó

Márialigeti

Bidló

et al. 2016

Journal of Bryology

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Species richness, composition and abundance of the bryophyte diaspore bank of Central European temperate mixed forests were compared with the forest-floor bryophyte assemblage. The impact of environmental variables and anthropogenic disturbances, including tree species composition, stand structure, microclimate, light conditions, soil and litter properties, management history, and landscape properties, potentially influencing bryophyte diaspore bank assemblages were explored. Thirty-four, 70-100 years old mixed stands with differing tree species composition were examined in the Ő rség National Park, Western Hungary. The diaspore bank was studied by soil collection and cultivation, and data were analysed by multivariate methods. Contrary to the forest-floor bryophyte assemblage, where substrate availability, tree species composition and stand structure were the most influential environmental variables, the composition and abundance of the diaspore bank was mainly affected by site conditions (microclimate, litter and soil properties). Species richness of the bryophyte diaspore bank was lower than that of the forest-floor bryophyte assemblage. Short-lived mosses (colonists, short-lived shuttles) were dominant in the diaspore bank, as opposed to the forest-floor bryophyte community, where perennial mosses dominated. In the studied forests, the importance of the bryophyte diaspore bank was relatively low in the regeneration and maintenance of the forest-floor bryophyte vegetation.

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Section: Multivariate Analysis Of the Diaspore Banksupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Environmental drivers of the bryophyte propagule bank and its comparison with forest-floor assemblage in Central European temperate mixed forests

Kövendi-Jakó

Márialigeti

Bidló

et al. 2016

Journal of Bryology

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“…Such contrasting effects on height growth may be more important than effects on biomass accumulation for competition and changes in species composition, since competitive outcome in bryophytes to a large extent is determined by overtopping and shading effects (Rydin, 2009). The results indicate that even for such a 'N-tolerant' species as S. fallax, the negative effects of N deposition are more important than any positive CO 2 effects.…”

Section: Vegetation Responses To Environmental Changementioning

confidence: 99%

Peatlands and the carbon cycle: from local processes to global implications – a synthesis

et al. 2008

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Abstract. Peatlands cover only 3% of the Earth's land surface but boreal and subarctic peatlands store about 15-30% of the world's soil carbon (C) as peat. Despite their potential for large positive feedbacks to the climate system through sequestration and emission of greenhouse gases, peatlands are not explicitly included in global climate models and therefore in predictions of future climate change. In April 2007 a symposium was held in Wageningen, the Netherlands, to advance our understanding of peatland C cycling. This paper synthesizes the main findings of the symposium, focusing on (i) small-scale processes, (ii) C fluxes at the landscape scale, and (iii) peatlands in the context of climate change.The main drivers controlling C fluxes are largely scale dependent and most are related to some aspects of hydrology. Despite high spatial and annual variability in Net Ecosystem Exchange (NEE), the differences in cumulative annual NEE are more a function of broad scale geographic location and physical setting than internal factors, suggesting the existence of strong feedbacks. In contrast, trace gas emissions seem mainly controlled by local factors.Key uncertainties remain concerning the existence of perturbation thresholds, the relative strengths of the CO 2 and CH 4 feedback, the links among peatland surface climate, hydrology, ecosystem structure and function, and trace gas biogeochemistry as well as the similarity of process rates across peatland types and climatic zones. Progress on these research areas can only be realized by stronger co-operation between disciplines that address different spatial and temporal scales.

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“…Las briofitas son consideradas potencialmente como un grupo indicador de la calidad de los sitios donde habitan (Mishler, 2003;Frego, 2007;Rydin, 2008), ya que por su tamaño pequeño, carencia de hojas, raíces y tipo de reproducción sexual, tienen requerimientos micro-ambientales particulares, en especial de humedad. Por ello, tanto el conocimiento de la composición de especies de musgos, como el de su distribución dentro del PNM, constituyen una referencia útil para evaluar en el futuro cercano, el impacto de las actividades humanas sobre la calidad del hábitat.…”

Section: Discussionunclassified

Musgos del Parque Nacional Los Mármoles, Hidalgo, México

et al. 2011

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Resumen: El Parque Nacional Los Mármoles, en el estado de Hidalgo, México, es una zona de interés florístico y fitogeográfico. Para proponer medidas para su conservación se debe tener un conocimiento adecuado de la biota, en particular de grupos como el de los musgos que han sido poco estudiados. Para esta investigación se recolectaron 573 muestras en los principales tipos de vegetación, que representan 129 especies y variedades de musgos. Mediante estimadores de riqueza no paramétricos (Jackknife y Bootstrap) se determinó que el inventario contiene entre el 78 y el 87% de los taxones infragenéricos esperados. La flora de musgos incluye especies como Aloina rigida y Claopodium pellucinerve que amplían su distribución conocida hacia el sur, y Campylopus anderssonii que la extiende hacia el norte. Los taxones muestran varios patrones de distribución, enunciados en orden de importancia: amplia distribución, mesoamericano, del Caribe, boreal, endémico, austral y chihuahuense. De los cuatro municipios representados en el parque, Zimapán, el de mayor extensión, también muestra la mayor riqueza de musgos (90 especies y variedades), mientras que en el de Pacula, el de menor superficie, sólo se conocen 39 taxones. Palabras clave: área natural protegida, Hidalgo, Los Mármoles, musgos.Abstract: Los Mármoles National Park, in the Mexican state of Hidalgo, is an area of floristic and phytogeographical interest. An adequate knowledge of its biota is a requisite before adopting conservation measures, especially for locally unknown plant groups such as the mosses. For this research, 573 specimens representing 129 species and varieties of mosses, were obtained from the main types of vegetation. Non-parametric richness estimators (Jackknife and Bootstrap), indicate that the local moss inventory contains between 78 and 87% of the expected infrageneric taxa. The moss flora includes such species as Aloina rigida and Claopodium pellucinerve that extend southwards their known distribution, and Campylopus anderssonii that extends it northwards. The identified patterns of distribution are arranged by number of species, as follows: Wide distribution, Mesoamerican, Caribbean, Boreal, Endemic, Southern, and Chihuahuan. Zimapán, the largest of the four municipalities represented in the park, is the most diverse with 90 moss species and varieties; in contrast, Pacula, with the smallest surface area, has the smallest moss flora, with 39 taxa.

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Population and community ecology of bryophytes

Cited by 50 publications

References 157 publications

Environmental drivers of the bryophyte propagule bank and its comparison with forest-floor assemblage in Central European temperate mixed forests

Environmental drivers of the bryophyte propagule bank and its comparison with forest-floor assemblage in Central European temperate mixed forests

Peatlands and the carbon cycle: from local processes to global implications – a synthesis

Musgos del Parque Nacional Los Mármoles, Hidalgo, México

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