Spring bryophytes in forested landscapes: Land use effects on bryophyte species richness, community structure and persistence

Heino, Jani; Virtanen, Risto; Vuori, Kari-Matti; Saastamoinen, Jouko; Ohtonen, Arvo; Muotka, Timo

doi:10.1016/j.biocon.2005.03.004

Cited by 34 publications

(23 citation statements)

References 13 publications

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“…Therefore, C. irrorata shows a higher degree of habitat specialization towards the periphery of its geographical range, as Svensson (1992) observed in three Gyrinus species in Sweden. Springs have suffered severely from forestry and agricultural activities, road construction, and water and gravel extraction in Finland (Ulvinen et al, 2002;Heino et al, 2005). Crunoecia irrorata seems to tolerate disturbance, as long as the hydrological stability of the spring is not severely affected.…”

Section: Discussionmentioning

confidence: 99%

“…However, habitat degradation may have had a negative impact on the abundance of C. irrorata in these springs, and the populations may decline in the future. Heino et al (2005) showed that the cover of spring-preferring bryophytes, as well as their richness, has declined during the last two decades (1986)(1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000) in eastern Finland owing to human disturbance. In Germany, at the centre of its occurrence, C. irrorata (among other crenobiont species) is rare in disturbed springs (Andree and Timm, 1993).…”

Section: Discussionmentioning

confidence: 99%

“…Spring naturalness was assessed using a 1-3 scale (1 ¼ severe damage, e.g. logging or ditching affecting the hydrological conditions of the spring, 2 ¼ minor disturbance in or near the spring, 3 ¼ pristine or nearpristine spring and its surroundings) (see also Heino et al, 2005). Altitude was estimated from national topographic maps (scale 1:20 000) to the nearest 5 m. Water temperature was measured in each spring during sampling, and samples from all springs were analyzed for pH, conductivity and colour.…”

Section: Study Speciesmentioning

confidence: 99%

“…The sampling time was related to classified spring area (1: 2 min, 2: 5 min, 3: 10 min, 4: 20 min, and 5: 30 min) and all habitat types within a spring were sampled. Bryophytes were sampled (2003)(2004)(2005)(2006) in 33 of the springs studied in 4-8 quadrats (0.25 m 2 ) taken along the runoff channel at regular intervals of 1 or 2 m, depending on the size of the spring (see also Heino et al, 2005). All samples were identified to the species level whenever possible.…”

Section: Study Speciesmentioning

confidence: 99%

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Crunoecia irrorata (Curtis) (Trichoptera: Lepidostomatidae) and conservation of boreal springs: indications of clustering of red‐listed species

Ilmonen

2007

Aquatic Conservation

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ABSTRACT1. Crunoecia irrorata is widely dispersed across Europe, but rare and red-listed in Finland. Its geographical range comprises most of the southern boreal zone in Fennoscandia. The species is confined to springs in the north, but occurs also in lower reaches of headwater streams in central and western Europe. It becomes more rare and less abundant towards the limits of its range across Europe, showing diffusive rarity. Glacial history and climate limit the distribution of the species in the north.2. The most important habitat characteristic for C. irrorata in Finland was the total area of helocrene habitats. Its occurrence was positively related to taxon richness of benthic macroinvertebrates, but not bryophytes. Co-occurrence of C. irrorata with other red-listed springdependent taxa was observed, indicating high conservation value of the springs occupied.3. Crunoecia irrorata occurred frequently in moderately disturbed springs, indicating tolerance to human disturbance around springs. However, the effect of the disturbance on population size is not known. Forestry and water and gravel extraction are potential threats to C. irrorata, and only a few of its populations are strictly protected. Therefore, populations of C. irrorata in the boreal zone should be conserved and monitored to ensure the species' survival at the northern limits of its range.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Study Speciesmentioning

confidence: 99%

Section: Study Speciesmentioning

confidence: 99%

See 2 more Smart Citations

Crunoecia irrorata (Curtis) (Trichoptera: Lepidostomatidae) and conservation of boreal springs: indications of clustering of red‐listed species

Ilmonen

2007

Aquatic Conservation

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“…Due to their ecological constancy (as addressed by Odum 1971), springs provide a habitat for stenoecious species that cannot be found in the surrounding ecosystems. Despite their small size Heino et al (2005) regard them as "key biotopes" because springs enhance the biodiversity of the terrestrial landscape.…”

Section: Introductionmentioning

confidence: 99%

Drivers of plant species composition in siliceous spring ecosystems: groundwater chemistry, catchment traits or spatial factors?

Strohbach¹,

Audorff²,

Beierkuhnlein³

2009

J Limnol

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Accelerated vegetation succession but no hydrological change in a boreal fen during 20 years of recent climate change

Kolari

Korpelainen

Kumpula

et al. 2021

Ecology and Evolution

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Northern mires (fens and bogs) have significant climate feedbacks and contribute to biodiversity, providing habitats to specialized biota. Many studies have found drying and degradation of bogs in response to climate change, while northern fens have received less attention. Rich fens are particularly important to biodiversity, but subject to global climate change, fen ecosystems may change via direct response of vegetation or indirectly by hydrological changes. With repeated sampling over the past 20 years, we aim to reveal trends in hydrology and vegetation in a pristine boreal fen with gradient from rich to poor fen and bog vegetation. We resampled 203 semi‐permanent plots and compared water‐table depth (WTD), pH, concentrations of mineral elements, and dissolved organic carbon (DOC), plant species occurrences, community structure, and vegetation types between 1998 and 2018. In the study area, the annual mean temperature rose by 1.0°C and precipitation by 46 mm, in 20‐year periods prior to sampling occasions. We found that wet fen vegetation decreased, while bog and poor fen vegetation increased significantly. This reflected a trend of increasing abundance of common, generalist hummock species at the expense of fen specialist species. Changes were the most pronounced in high pH plots, where Sphagnum mosses had significantly increased in plot frequency, cover, and species richness. Changes of water chemistry were mainly insignificant in concentration levels and spatial patterns. Although indications toward drier conditions were found in vegetation, WTD had not consistently increased, instead, our results revealed complex dynamics of WTD as depending on vegetation changes. Overall, we found significant trend in vegetation, conforming to common succession pattern from rich to poor fen and bog vegetation. Our results suggest that responses intrinsic to vegetation, such as increased productivity or altered species interactions, may be more significant than indirect effects via local hydrology to the ecosystem response to climate warming.

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Spring bryophytes in forested landscapes: Land use effects on bryophyte species richness, community structure and persistence

Cited by 34 publications

References 13 publications

Crunoecia irrorata (Curtis) (Trichoptera: Lepidostomatidae) and conservation of boreal springs: indications of clustering of red‐listed species

Crunoecia irrorata (Curtis) (Trichoptera: Lepidostomatidae) and conservation of boreal springs: indications of clustering of red‐listed species

Drivers of plant species composition in siliceous spring ecosystems: groundwater chemistry, catchment traits or spatial factors?

Accelerated vegetation succession but no hydrological change in a boreal fen during 20 years of recent climate change

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