Palaeoenvironmental information from the palynology of an 800year old bat guano deposit from Măgurici Cave, NW Transylvania (Romania)

Geantă, Anca; Tanţău, Ioan; Tămaș, Tudor; Johnston, Vanessa E.

doi:10.1016/j.revpalbo.2011.12.009

Cited by 32 publications

(30 citation statements)

References 43 publications

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“…The human impact in the pollen diagrams from sites located in the Apuseni Mountains is more obvious during the Middle to Late Holocene (Fărcaş et al, 2003a(Fărcaş et al, , 2003bFărcaş and Tanţău, 2004;Feurdean and Willis, 2008;Geantă et al, 2012). The first signs of human presence in the Apuseni Mountains, as provided by 14 C dated pollen diagrams, go back as far as 7100 cal.…”

Section: Human Impactmentioning

confidence: 99%

Middle to Late Holocene vegetation shifts in the NW Transylvanian lowlands (Romania)

Grindean

Tanţău²,

Fărcaş³

et al. 2014

Studia UBB Geologia

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Abstract. The Iaz peat bog, located in northwestern Transylvania at 300 m a.s.l., was cored to study the Middle to Late Holocene vegetation shifts in the area. The pollen record is supported by seven 14 C datings. The base of the sequence starts in the Middle Holocene, when the outer woodlands were dominated by Corylus avellana together with other components of the Quercetum mixtum. The local establishment of Carpinus betulus occurred at 5700 cal. yr BP with maximum values at around 4900 cal. yr BP. At 4800 cal. yr BP, Fagus sylvatica became locally established and expanded, possibly as a result of moist climatic conditions and dominated the mesothermophilous woodlands from 4300 cal. yr BP onwards. During the periods of greater moisture, the deciduous forest was overgrown by the hygrophilous Alnus glutinosa belt. Indications of human activities in the area were recorded since 6300 cal. yr BP, when Cerealia and Secale pollen and other ruderal taxa start to appear regularly throughout the sequence. Although intense at times, the anthropogenic factor only played a major role in the vegetation changes during the last 635 years.

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Section: Human Impactmentioning

confidence: 99%

Middle to Late Holocene vegetation shifts in the NW Transylvanian lowlands (Romania)

Grindean

Tanţău²,

Fărcaş³

et al. 2014

Studia UBB Geologia

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“…Insect-pollinated plants are also overrepresented in the Ogof Draenen Cave (Wales) (Leroy and Simms 2006). The Măgurici Cave in Romania, by contrast, yielded lower values of entomophilous than those of anemophilous taxa (Geanta et al 2012). …”

Section: Pollen Taphonomymentioning

confidence: 99%

“…Fagus pollen was hardly encountered in the guano, which suggests that beech forests are not attractive to the bats. Surprisingly, lowland beech forests have been described as the main foraging habitat of this bat species, both in north-central France from the cave La Grande Grotte (Bui-Thi-Mai and Girard 2000) and from the Măgurici Cave in the northern Carpathian Mts of Romania (Geanta et al 2012). On the other hand, foraging habitats of the bats roosting in the Domica Cave correspond well with oceanic open hazel woodlands with birch, alder and oak, which were reconstructed for the Ogof Draenen Cave of Wales lying on limestone scarp (Leroy and Simms 2006).…”

Section: Selection Of Foraging Habitats By Bats During the Last Millementioning

confidence: 99%

“…Several pioneer studies have shown the potential of pollen analysis of bat guano as a source of information on past vegetation development in relation to climatic fluctuations (Bui-Thi-Mai and Girard 2000; Geanta et al 2012). The taphonomy of entomophilous and anemophilous pollen in bat guano has been described by Leroy and Simms (2006) as follows.…”

Section: Introductionmentioning

confidence: 99%

“…Cave guano has hitherto been studied for pollen at three sites: in the Măgurici Cave in the northern Carpathian Mts of Romania (dated to 855 ± 30 BP; Geanta et al 2012), in the Ogof Draenen Cave in south-east Wales, Great Britain (dated to 835 ± 35 BP; Leroy and Simms 2006) and in the La Grande Grotte cave in north-central France (dated to 1250 ± 85 BP;Bui-Thi-Mai and Girard 2000). In addition, very old bat guano has been found in the cave Pestera lui Adam in the southern Carpathian Mts of Romania (dated to 9000 BC;Carbonnel et al 1996Carbonnel et al , 1999.…”

Section: Introductionmentioning

confidence: 99%

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The thousand-year history of the Slovak Karst inferred from pollen in bat guano inside the Domica Cave (Slovakia)

et al. 2015

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A thousand years old 105 cm deep deposit of bat guano in the Domica Cave (southern Slovakia, Slovak Karst National Park) has been discovered for science, and three samples were analysed for pollen to identify the bats' preferred foraging habitats and for insect remains to identify their diet. The bat species concerned, Rhinolophus euryale, is rare in the area, which lies at the northern margin of its distribution. The pollen record captured alder forests between 897-1024 AD, temperate light broad-leaved oak-hornbeam forests with Quercus cerris, Fraxinus ornus, Cornus mas and Corylus avellana between 1522-1800 AD, and almost recently willow shrubs. This pattern may, however, reflect local changes in the surrounding landscape where the bats hunted. Pollen of anemophilous taxa was underrepresented (e.g. Fagus), while entomophilous taxa were overrepresented (e.g. Fraxinus ornus, Loranthus europaeus, Acer, Agrostemma githago). The phenology of the encountered pollen taxa indicates that the bats used the Domica Cave mainly as spring and summer roosts. The pollen record further indicates that the bats prefer to forage in a forest-steppe landscape with open Pannonian broadleaved forests and humid temperate riparian environments. Today, this kind of landscape does not occur further north, which may explain the northern limit of this bat species at the study site.

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A guano‐derived δ¹³C and δ¹⁵N record of climate since the Medieval Warm Period in north‐west Romania

Cleary

Onac

Tanţău

et al. 2018

J Quaternary Science

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A 285-cm core of bat guano was recovered from M agurici Cave in north-west Romania and analyzed for d 13 C, d 15 N and pollen. Guano deposition occurred from AD 881 until 1240 and from AD 1651 to 2013, allowing for the interpretation of summer variations in precipitation and temperature during the Medieval Warm Period (MWP) and the Little Ice Age (LIA). A 2‰ increase in d 13 C, 1.5‰ decrease in d 15 N, and the presence of Ulmus, Quercus and Carpinus betulus indicate a warm and dry MWP occurred in the region. The lack of deposition during the beginning of the LIA suggests a possible climate-induced change in prey availability resulting in bats vacating the cave. Variation of d 13 C values between À25 and À23‰ at AD 1650 (LIA) indicates similar drier conditions as at the end of MWP. However, a 2‰ decrease in d 13 C values that occurred between AD 1790 and 1900 suggests climate was trending towards wetter conditions at the end of the LIA. From AD 1938 to 2013, d 13 C values appear to be more influenced by temperature, indicating that this parameter had a more significant effect on carbon discrimination than water availability.

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Palaeoenvironmental information from the palynology of an 800year old bat guano deposit from Măgurici Cave, NW Transylvania (Romania)

Cited by 32 publications

References 43 publications

Middle to Late Holocene vegetation shifts in the NW Transylvanian lowlands (Romania)

Middle to Late Holocene vegetation shifts in the NW Transylvanian lowlands (Romania)

The thousand-year history of the Slovak Karst inferred from pollen in bat guano inside the Domica Cave (Slovakia)

A guano‐derived δ¹³C and δ¹⁵N record of climate since the Medieval Warm Period in north‐west Romania

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Palaeoenvironmental information from the palynology of an 800year old bat guano deposit from Măgurici Cave, NW Transylvania (Romania)

Cited by 32 publications

References 43 publications

Middle to Late Holocene vegetation shifts in the NW Transylvanian lowlands (Romania)

Middle to Late Holocene vegetation shifts in the NW Transylvanian lowlands (Romania)

The thousand-year history of the Slovak Karst inferred from pollen in bat guano inside the Domica Cave (Slovakia)

A guano‐derived δ13C and δ15N record of climate since the Medieval Warm Period in north‐west Romania

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Product

Resources

About

A guano‐derived δ¹³C and δ¹⁵N record of climate since the Medieval Warm Period in north‐west Romania