Bryophyte responses to fragmentation in temperate coastal rainforests: A functional group approach

Baldwin, Lyn; Bradfield, Gary E.

doi:10.1016/j.biocon.2006.12.006

Cited by 47 publications

(30 citation statements)

References 52 publications

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“…Thus, moss responses to warming are likely to be species specific, and vary depending on the associated vascular plant community -making generalized predictions a challenge (Keuper et al, 2011). Studies of species-specific responses to warming are urgently needed, and may enable us to extrapolate findings to bryophyte functional groups (Chapin et al, 1996;Cornelissen, 1996;Aerts, 2006;Baldwin and Bradfield, 2007;Turetsky et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Passive warming reduces stress and shifts reproductive effort in the Antarctic moss,Polytrichastrum alpinum

Shortlidge

Eppley

Köhler

et al. 2016

Ann Bot

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Background and Aims The Western Antarctic Peninsula is one of the most rapidly warming regions on Earth, and many biotic communities inhabiting this dynamic region are responding to these well-documented climatic shifts. Yet some of the most prevalent organisms of terrestrial Antarctica, the mosses, and their responses to warming have been relatively overlooked and understudied. In this research, the impacts of 6 years of passive warming were investigated using open top chambers (OTCs), on moss communities of Fildes Peninsula, King George Island, Antarctica.Methods The effects of experimental passive warming on the morphology, sexual reproductive effort and stress physiology of a common dioicous Antarctic moss, Polytrichastrum alpinum, were tested, gaining the first speciesspecific mechanistic insight into moss responses to warming in the Antarctic. Additionally community analyses were conducted examining the impact of warming on overall moss percentage cover and sporophyte production in intact Antarctic moss communities.Key Results Our results show a generally greater percentage moss cover under warming conditions as well as increased gametangia production in P. alpinum. Distinct morphological and physiological shifts in P. alpinum were found under passive warming compared with those without warming: warmed mosses reduced investment in cellular stress defences, but invested more towards primary productivity and gametangia development.Conclusions Taken together, results from this study of mosses under passive warming imply that in ice-free moss-dominated regions, continued climate warming will probably have profound impacts on moss biology and colonization along the Western Antarctic Peninsula. Such findings highlight the fundamental role that mosses will play in influencing the terrestrialization of a warming Antarctica.

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Section: Introductionmentioning

confidence: 99%

Passive warming reduces stress and shifts reproductive effort in the Antarctic moss,Polytrichastrum alpinum

Shortlidge

Eppley

Köhler

et al. 2016

Ann Bot

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“…There are also few studies describing how other taxonomic groups, including ferns and lycophytes (Paciencia & Prado 2004;Barros et al 2006;Silva et al 2011;Pereira et al 2014) and fruticose lichens (Esseen & Renhorn 1998) or bryophytes (Baldwin & Bradfield 2007), respond to these effects.…”

Section: Introductionmentioning

confidence: 99%

The effects of fragmentation on Araucaria forest: analysis of the fern and lycophyte communities at sites subject to different edge conditions

Silva

Schmitt

2015

Acta Bot. Bras.

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Edge effects impact species richness and composition as a result of environmental changes caused by fragmentation. This study analyzed edge effects on a community of terrestrial ferns and lycophytes in an Araucaria forest in Brazil at sites subjected to differing edge conditions: (1) a site bordering a road running through the interior of a conservation unit, and (2) a site bordering an agricultural property. Twelve 10 × 10 m plots were selected at the edge and in the interior of each site, and accounted for a total of 48 plots. The edges had lost their characteristic floristic identity, suggesting that many species are sensitive to variations in environmental conditions. The edge effect had a negative impact on species richness as shown by the greater average numbers of fern and lycophyte species in forest interiors at both sites. The results showed that the forest fragments in contact with agricultural areas were subjected to more intense edge effects than the fragments bordering a road within a conservation unit.

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“…Research on bryophytes in urban areas suggests that edge effects caused by forest fragmentation strongly decrease bryophyte diversity (Baldwin & Bradfield, 2007;Oishi, 2009;Pharo & Zartman, 2007); habitat heterogeneity, on the other hand, increases bryophyte diversity (Cole, Newmaster, Bell, Pitt, & Stinson, 2008;Gignac & Dale, 2005;Pharo & Zartman, 2007).…”

Section: Introductionmentioning

confidence: 99%

Influence of urban green spaces on the conservation of bryophyte diversity: The special role of Japanese gardens

Oishi

2012

Landscape and Urban Planning

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Urban green spaces play a critical role in the maintenance of biodiversity in urban areas. However, bryophyte (moss) diversity in urban areas has received little attention. This study examined the role of urban green spaces in maintaining and enhancing bryophyte diversity.Four sites in Kanazawa City, northwestern Japan, were selected for the study based on differences in the utilization and maintenance practices: a Japanese garden, an urban park, a secondary forest, and a lawn. Bryophyte species richness and environmental characteristics were measured in sample plots 5 m in diameter (ca. 78.5 m 2 ) along transects spanning the length and width of each green space. Bryophyte species richness was especially high in the garden relative to that observed in the other green spaces. Multiple linear regression models determined that bryophyte species richness was significantly correlated with increased areas of water and rocks, increased areas of restricted entry, and the presence of maintenance practices; grass cover, on the other hand, was negatively correlated with bryophyte species richness. The results suggest that high bryophyte species richness in the gardens is related to the diversity of environments created by the design and maintenance practices for keeping the garden looking beautiful. These design and maintenance practices can be applied to the creation of green space for the conservation of bryophyte diversity. Furthermore, the placement of logs and creation of patches with lower maintenance intensity can enhance the conservation of bryophyte diversity.Keywords: biodiversity; urban area; design; maintenance; Japan Short author biographiesYoshitaka Oishi is Assistant Professor of Landscape Ecology at Shinshu University, Japan. He completed his PhD on bryophyte diversity conservation in urban areas, at Kyoto University in 2007. His main research interest is on the conservation and ecology of bryophytes. His recent work also focuses on environmental monitoring using bryophytes as bio-indicators. Research highlightsThe role of Japanese gardens in the conservation of bryophyte diversity was evaluated.Bryophyte species richness was compared in several types of urban green spaces. The bryophyte species richness was especially high in a Japanese garden. This result can be explained by design and maintenance practices in Japanese gardens. They enhance habitat diversity and substrates suitable for bryophyte growth.

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Bryophyte responses to fragmentation in temperate coastal rainforests: A functional group approach

Cited by 47 publications

References 52 publications

Passive warming reduces stress and shifts reproductive effort in the Antarctic moss,Polytrichastrum alpinum

Passive warming reduces stress and shifts reproductive effort in the Antarctic moss,Polytrichastrum alpinum

The effects of fragmentation on Araucaria forest: analysis of the fern and lycophyte communities at sites subject to different edge conditions

Influence of urban green spaces on the conservation of bryophyte diversity: The special role of Japanese gardens

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