Recent variations of Ghiacciaio del Calderone, Abruzzi, Italy

Gellatly, Anne F.; Smiraglia, Claudio; Grove, Jean M.; Latham, Richard C.

doi:10.3189/s0022143000012351

Cited by 13 publications

(7 citation statements)

References 3 publications

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“…The lower (and wider) ice apron is depressed and completely covered by white limestone rock debris, whereas the upper apron is characterized by the presence of seasonal snow (Pecci et al , 2008). Accordingly, the reduced dimension and the general conditions of the glacier make it an interesting glaciological, geomorphological and environmental witness to global change (Gellatly et al , 1994; D'Orefice et al , 2000; D'Alessandro et al , 2001, 2003; Pecci, 2001).…”

Section: Methodsmentioning

confidence: 99%

Yeast and yeast-like diversity in the southernmost glacier of Europe (Calderone Glacier, Apennines, Italy)

Branda

Turchetti

Diolaiuti

et al. 2010

FEMS Microbiology Ecology

129

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The present study reports the characterization of psychrophilic yeast and yeast-like diversity in cold habitats (superficial and deep sediments, ice cores and meltwaters) of the Calderone Glacier (Italy), which is the southernmost glacier in Europe. After incubation at 4 and 20 degrees C, sediments contained about 10(2)-10(3) CFU of yeasts g(-1). The number of viable yeast cells in ice and meltwaters was several orders of magnitude lower. The concomitant presence of viable bacteria and filamentous fungi has also been observed. In all, 257 yeast strains were isolated and identified by 26S rRNA gene D1/D2 and internal transcribed spacers (1 and 2) sequencing as belonging to 28 ascomycetous and basidiomycetous species of 11 genera (Candida, Cystofilobasidium, Cryptococcus, Dioszegia, Erythrobasidium, Guehomyces, Mastigobasidium, Mrakia, Mrakiella, Rhodotorula and Sporobolomyces). Among them, the species Cryptococcus gastricus accounted for almost 40% of the total isolates. In addition, 12 strains were identified as belonging to the yeast-like species Aureobasidium pullulans and Exophiala dermatitidis, whereas 15 strains, presumably belonging to new species, yet to be described, were also isolated. Results herein reported indicate that the Calderone Glacier, although currently considered a vanishing ice body due to the ongoing global-warming phenomenon, still harbors viable psychrophilic yeast populations. Differences of yeast and yeast-like diversity between the glacier under study and other worldwide cold habitats are also discussed.

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Section: Methodsmentioning

confidence: 99%

Yeast and yeast-like diversity in the southernmost glacier of Europe (Calderone Glacier, Apennines, Italy)

Branda

Turchetti

Diolaiuti

et al. 2010

FEMS Microbiology Ecology

129

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“…Éste ha sido el caso de los pequeños glaciares de los Alpes Marítimos meridionales (Gellatly et al, 1994a;Pappalardo, 1999), los Apeninos centrales (Gellatly et al, 1994b;D'Orefice et al, 2000) o Sierra Nevada (Messerli, 1980;Gómez Ortiz y Salvador, 1997). El control de la topografía en la conservación de pequeños aparatos glaciares como los pirenaicos, en desequilibrio con las actuales condiciones climáticas, ha sido también apuntado en varios sectores africanos por Kruss y Hastenrath (1987) y Hastenrath y Greischar (1997.…”

Section: Conclusionesunclassified

Influencia de la radiación solar en el proceso de degradación y fragmentación post-pequeña Edad del Hielo del glaciar de la Madaleta (Pirineo Central Español)

Cía

Andrés

2013

CIG

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“…In fact, most Mediterranean glaciers experienced signifi cant overall retreat through the 20th century, with only a few minor readvances in some years (Messerli, 1967;McGregor et al, 1995;Gabrovec, 1998;D'Alessandro et al, 2001;Federici and Stefanini, 2001;Çiner,The Calderone glacier in the Italian Apennines is one of the most intensively studied glaciers in the Mediterranean mountains. The glacier retreated through the 20th century, and between 1916 and 1990 its volume is estimated to have been reduced by about 90% and its area by about 68% (Gellatly et al, 1994). In recent years the glaciers split into two portions and the remaining ice is rapidly shrinking (D'Alessandro et al, 2001;Pecci et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Little Ice Age glaciers in the Balkans: low altitude glaciation enabled by cooler temperatures and local topoclimatic controls

Hughes

2009

Earth Surf Processes Landf

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Moraine ridges are present in the highest cirques of the Durmitor massif in Montenegro and post-date the widespread Pleistocene moraines of this area. Lichenometry suggests that at least eight glaciers were present in the 19th century and correlate with the culmination of the Little Ice Age in the European Alps. Cooler temperatures combined with local topoclimatic controls, including windblown and avalanching snow as well as shading, were crucial for the formation and survival of these glaciers below the regional equilibrium-line altitude. The resultant regional equilibrium line altitude (ELA) was positioned close to the highest peaks between 2400 and 2500 m, with local controls such as avalanche, windblown snow and shading depressing the ELA in the northern cirques to 2130-2210 m. This ELA position was very low for this latitude and lower than for most glaciers in the European Alps at any time during the Holocene, and even equivalent to many Alpine glaciers during the Younger Dryas. Today, one glacier still survives in Montenegro, in a deep northeast-facing cirque characterized by the largest combined areas of potential avalanche and windblown snow.

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Recent variations of Ghiacciaio del Calderone, Abruzzi, Italy

Cited by 13 publications

References 3 publications

Yeast and yeast-like diversity in the southernmost glacier of Europe (Calderone Glacier, Apennines, Italy)

Yeast and yeast-like diversity in the southernmost glacier of Europe (Calderone Glacier, Apennines, Italy)

Influencia de la radiación solar en el proceso de degradación y fragmentación post-pequeña Edad del Hielo del glaciar de la Madaleta (Pirineo Central Español)

Little Ice Age glaciers in the Balkans: low altitude glaciation enabled by cooler temperatures and local topoclimatic controls

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