Bog development in southeastern drenthe (The Netherlands)

Casparie, W. A.

doi:10.1007/bf02675415

Cited by 19 publications

(27 citation statements)

References 44 publications

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“…In an Irish mire, Walker and Walker (1961) found stratigraphic evidence that microforms had remained at the same position over time. Similar conclusions are drawn from other study sites (e.g., Sjörs 1961;Casparie 1972;Boatman and Tomlinson 1973;Frenzel 1983), and there is a general agreement that these different microforms are remarkably resilient to changes in environmental conditions (Belyea and Clymo 2001;Nungesser 2003), such as climate change.…”

Section: Catastrophic Shifts In Peatlandssupporting

confidence: 85%

Linking habitat modification to catastrophic shifts and vegetation patterns in bogs

et al. 2007

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Paleoecological studies indicate that peatland ecosystems may exhibit bistability. This would mean that these systems are resilient to gradual changes in climate, until environmental thresholds are passed. Then, ecosystem stability is lost and rapid shifts in surface and vegetation structure at landscape scale occur. Another remarkable feature is the commonly observed self-organized spatial vegetation patterning, such as string-flark and maze patterns. Bistability and spatial selforganization may be mechanistically linked, the crucial mechanism being scale-dependent (locally positive and longer-range negative) feedback between vegetation and the peatland environment. Focusing on bogs, a previous model study shows that nutrient accumulation by vascular plants can induce such scale-dependent feedback driving pattern formation. However, stability of bog microforms such as hummocks and hollows has been attributed to different local interactions between Sphagnum, vascular plants, and the bog environment. Here we analyze both local and longer-range interactions in bogs to investigate the possible contribution of these different interactions to vegetation patterning and stability. This is done by a literature review, and subsequently these findings are incorporated in the original model. When Sphagnum and encompassing local interactions are included in this model, the boundaries between vegetation types become sharper and also the parameter region of bistability drastically increases. These results imply that vegetation patterning and stability of bogs could be synergistically governed by local and longerrange interactions. Studying the relative effect of these interactions is therefore suggested to be an important component of future predictions on the response of peatland ecosystems to climatic changes.

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Section: Catastrophic Shifts In Peatlandssupporting

confidence: 85%

Linking habitat modification to catastrophic shifts and vegetation patterns in bogs

et al. 2007

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“…· S. imbricatum is a highly oceanic species (Daniels and Eddy, 1985). Nowadays it often occurs in hummocks, but there are strong indications that in the past S. imbricatum grew mostly in rather wet 'lawn' conditions (Casparie, 1972;Barber, 1981;Green, 1968;Stoneman et al, 1993;Mauquoy and Barber, 1999). As with most palaeoecological studies, we interpret its appearance as indicating a change to moister climate (higher air humidity and cooler conditions).…”

Section: · Scheuchzeria Palustris (Hereafter Abbreviated To Scheuchzementioning

confidence: 59%

“…As Scheuchzeria was placed rather high on the second axis of DCA by Økland (1990), indicating a poor-rich gradient, the species can be considered to be slightly minerotrophic compared to other raised-bog plants. Other studies also mention its slight minerotrophy (e.g., Casparie, 1972). · Rhynchospora alba is also indicative of pools or high water tables (Godwin and Conway, 1939;Mauquoy, 1997).…”

Section: · Scheuchzeria Palustris (Hereafter Abbreviated To Scheuchzementioning

confidence: 99%

Solar forcing of climatic change during the mid-Holocene: indications from raised bogs in The Netherlands

2004

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Two cores of mid-Holocene raised-bog deposits from the Netherlands were 14 C wiggle-match dated at high precision. Changes in local moisture conditions were inferred from the changing species composition of consecutive series of macrofossil samples. Several wet-shifts were inferred, and these were often coeval with major rises in the D 14 C archive (probably caused by major declines in solar activity). The use of D 14 C as a proxy for changes in solar activity is validated. This paper adds to the increasing body of evidence that solar variability forced climatic changes during the Holocene.

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“…in laagten van de uitgestrekte zeer laag liggende natte dekzandvlakte van Zuidoost Drenthe (Casparie, 1972). Veenmossen vestigden zich onder invloed van een mild vochtig klimaat in natte valleien.…”

Section: Ontstaansgeschiedenis En Afbakeningunclassified

“…Veenmossen vestigden zich onder invloed van een mild vochtig klimaat in natte valleien. De hoogvenen overgroeiden geleidelijk de oorspronkelijke overgangs-en trilvenen (Casparie, 1972) Uit: . Grootjans et al, 2015: Figuur 4 van violet/blauw (ca.…”

Section: Ontstaansgeschiedenis En Afbakeningunclassified

Kansen voor meer natuurlijkheid in Natura 2000-gebieden

Bijlsma

Jansen

Janssen

et al. 2016

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Bog development in southeastern drenthe (The Netherlands)

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Cited by 19 publications

References 44 publications

Linking habitat modification to catastrophic shifts and vegetation patterns in bogs

Linking habitat modification to catastrophic shifts and vegetation patterns in bogs

Solar forcing of climatic change during the mid-Holocene: indications from raised bogs in The Netherlands

Kansen voor meer natuurlijkheid in Natura 2000-gebieden

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