Cesare Ravazzi

Cesare Ravazzi
Italian National Research Council | CNR · Department of Earth Sciences and Environmental Technology

PhD
I'm searching for multiproxy records documenting recent changes in ecosystem dynamics (e.g. last 1000 yrs).

About

231
Publications
84,453
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Introduction
I use an array of quantitative biological, sedimentary and landform proxies to reconstruct the environmental, climate and cultural history of the Quaternary and the Anthropocene, i.,e. microfossils, microbotany, geo- and pedochemistry, sedimentology, catchment geomorphic processes. Some focuses: forest history, human impact, plant and livestock husbandry, long-term ecological and geological changes in the N-Adriatic foreland. Last Glacial Maximum. Ecosystems and glaciers
Additional affiliations
January 2013 - December 2020
Universidad de La Laguna
Position
  • Collaborator
Description
  • Palaeoecology of Canary islands

Publications

Publications (231)
Article
Aim Long‐term ecological data provide a stepped frame of island ecosystem transformation after successive waves of human colonization, essential to determine conservation and management baselines. However, the timing and ecological impact of initial human settlement on many islands is still poorly known. Here, we report analyses from a 4800‐year se...
Article
Full-text available
Life on a hilltop: vegetation history, plant husbandry and pastoralism at the dawn of Bergamo‑Bergomum (northern Italy, 15th to 7th century bc) Roberta Pini · Cesare Ravazzi · Roberto Comolli · Renata Perego · Lorenzo Castellano · Camilla Croci · Mattia De Amicis · Davide Abu El Khair · Giulia Furlanetto · Diego Marsetti Abstract Cores and trench...
Article
Full-text available
A 3800 year-long radiocarbon-dated and highly-resolved palaeoecological record from Lake Fimon (N-Italy) served to investigate the effects of potential teleconnections between North Atlantic and mid-to-low latitudes at the transition from Marine Isotope Stage (MIS) 3 to 2. Boreal ecosystems documented in the Fimon record reacted in a sensitive way...
Article
The southern Alpine foreland, facing windward to moist southern airmasses, is claimed to have supported forest vegetation throughout the Last Glaciation. Here we present a multiproxy paleoecological record from a compressed peat, uncovered at Casaletto Ceredano, N-Italy, spanning the interval from 33 to 30.5 kyr cal BP. Stratigraphically, it underl...
Article
Sedimentary archives at or near the timberline ecotone in Alpine glaciated areas contain records to study Holocene climate change and the interplay between climate, ecosystems, and humans. We focused on records of timberline and glacier oscillations in the Rutor Glacier forefield (Western Italian Alps) in the last 8800 years. Human activity in this...
Article
During the last glaciation the Eurasian continent was impacted by the global reorganization of atmospheric circulation caused by North Atlantic events, through changes in moisture storm tracks modulated by orography. Our research explores the linkages between climate evolution in the North Atlantic and in the Alps between 30.6 and 12.5 ka, This per...
Article
In this paper, we describe a 5500-year long core obtained from a lake in the Prealps of northern Italy to investigate the impact of human communities on the lacustrine environment. Specifically, we report micro-botanical proxies (upland and aquatic pollen, algae, cyanobacteria, dung spores, microcharcoal particles), sedimentary parameters (LOI step...
Chapter
The aim of this chapter is to provide an up-to-date review of the contribution of palynology to the reconstruction of the exploitation of ancient beekeeping and bee-products. After having introduced the reader to some of the main concepts in the palynology of bee-products (§2), the available evidence from Europe and the Mediterranean basin will be...
Article
Full-text available
Understanding the recent events marking the late Quaternary history of the Po Plain (N-Italy) is of overriding importance to decipher the record of depositional versus erosional phases, and their interplay with climatic, tectonic, and human forcing. We reconstructed the structural setting and chronostratigraphy of a Holocene succession crosscut by...
Article
Full-text available
The study of the past is of fundamental importance in understanding the processes that control the functioning of the Earth System and the interaction between ecosystems, human society and natural variability. The Quaternary scientist produces a variety of proxies derived from the investigation of natural, archaeological and historical records cove...
Article
Large portions of the highly populated central Po Plain in northern Italy are susceptible to major liquefaction–induced ground failure and resulting damage, as illustrated by the 2012 Mw 5.6–5.8 earthquake sequence. Our work presents a comprehensive geomorphological, stratigraphic and geotechnical dataset from a 1012 km² study area in the alluvial...
Article
Full-text available
The Eurasian (née European) Modern Pollen Database (EMPD) was established in 2013 to provide a public database of high-quality modern pollen surface samples to help support studies of past climate, land-cover and land-use using fossil pollen. The EMPD is part of, and complementary to, the European Pollen Database (EPD) which contains data on fossil...
Article
During the Last Glacial Maximum (LGM, 30 to 16.5 ka ago), the Great Adriatic-Po Region (GAPR) was deeply affected by the spread of glaciers from the Alps to the southern foreland and by the dropping of the sea level to ~ -120 m amsl. The combination of these two events triggered the aggradation of the Great Po Plain (GPP), a vast flat area between...
Chapter
Evidence from various climate proxies provides us with increasingly reliable proof that only in the past 10 millennia were natural systems more or less as we see them at the present (without considering human impact). Prior to 10,000 years ago, natural systems repeatedly changed under the influence of an unstable climate. This is particularly true...
Article
Full-text available
Pollen data are widely used as proxies to reconstruct past vegetation and climate changes. During the last decades numerical techniques have been developed to quantitatively estimate climate parameters from fossil pollen assemblages. This contribution introduces first the concepts and methodologies based on modern calibration sets to obtain past cl...
Article
Full-text available
We applied a newly established procedure to quantitatively estimate summer temperatures during two different time frames (the last 3 ka, the last 200 years) from selected fossil pollen records in northern Italy. The adopted procedure involved three steps: 1) the development of a specific calibration set (modern pollen data and site-specific climate...
Article
The hilltop town of Bergamo, at the southern fringe of the Italian Alps, represents a typical example of the stepped emergence of a prehistoric settlement developing into a proto-historic urban center in the Iron Age. We present here unprecedented multidisciplinary evidence based on several near-site stratigraphies, supported by a robust radiocarbo...
Preprint
Full-text available
Abstract. The Eurasian (née European) Modern Pollen Database (EMPD) was established in 2013 to provide a public database of high-quality modern pollen surface samples to help support studies of past climate, land-cover and land-use using fossil pollen. The EMPD is part of, and complementary to, the European Pollen Database (EPD) which contains data...
Preprint
This paper summarizes the current state of knowledge about the millennial scale climate variability characterizing Marine Isotope Stage 3 (MIS 3) in S-Europe and the Mediterranean area and its effects on terrestrial ecosystems. The sequence of Dansgaard-Oeschger events, as recorded by Greenland ice cores and recognizable in isotope profiles from sp...
Article
Full-text available
An introductory report on lake sedimentation and palaeoecology of the several small carbonatic lakes enclosed by LGM moraines in the glacial amphitheatre of the Garda Lake, and rich in pile dwellings developed in the Bronze Age.
Article
Full-text available
This paper summarizes the current state of knowledge about the millennial scale climate variability characterizing Marine Isotope Stage 3 (MIS 3) in S-Europe and the Mediterranean area and its effects on terrestrial ecosystems. The sequence of Dansgaard-Oeschger events, as recorded by Greenland ice cores and recognizable in isotope profiles from sp...
Chapter
Full-text available
The origin of the early settlement at the top of the Bergamo hill, as reconstructed from biostratigraphy and radiocarbon dating of core drillings in the center of the old town of Bergamo.
Article
Full-text available
The BRAIN (Botanical Records of Archaeobotany Italian Network) database and network was developed by the cooperation of archaeobotanists working on Italian archaeological sites. Examples of recent research including pollen or other plant remains in analytical and synthetic papers are reported as an exemplar reference list. This paper retraces the m...
Article
The potential of quantitatively reconstructing climate from modern pollen assemblages from high mountain environments has been widely debated but seldom tested. We analysed the pollen deposition in 53 surface samples (mosses) in relation to July temperature in two elevational transects in the European Alps. Each surface-sample site was assigned cli...
Article
Full-text available
The Gravettian settlements of Europe are considered as an expression of human adaptation to harsh climates. In Southern Europe, however, favorable vegetation-climate conditions supported hunters-gatherer subsistence and the maintenance of their large-scale networks. This was also the case of the North-Adriatic plain and the Apennine mountain ridge...
Article
We reconstructed the vegetation and climate history during the last 10 ka in a high-elevation sedimentary record (Armentarga peat bog, 2345m asl) on the southern flank of the European Alps through the study of paleoecological and sedimentary proxies. We included a specific elevational transect of modern Pollen Accumulation Rates for timberline-form...
Article
Full-text available
The stratigraphic record of Late Pleistocene glaciations in the Alps is well defined for the Last Glacial Maximum (LGM) thanks to recent chronological and stratigraphic studies. These allowed to compare the spread of the glaciers to the global climate models for the LGM, whereas, the amplitude of glacial advances in the pre-LGM Late Pleistocene nee...
Conference Paper
The Gravettian settlements of Europe are considered as an expression of the human adaptation to harsh climates. In Southern Europe, however, favorable vegetation-climate conditions supported hunters-gatherers subsistence and the maintenance of their large-scale networks. This was also the case of the North-Adriatic plain and the Apennine mountain r...
Conference Paper
Full-text available
The Last Glaciation environmental history of the Po Plain (Northern Italy) is still poorly known. Here we present a multiproxy record from a compressed peat dated 33-30 ka cal BP, underlying the Last Glacial Maximum fluvio-glacial belt in the Adda River catchment. Slow river dynamics and subsurface water saturation granted stable surfaces supportin...
Conference Paper
Full-text available
Pollen assemblages are increasingly used for quantitative reconstructions of past climate parameters. Estimated temperatures and precipitations can be coupled with palaeoecological records to make their interpretation more robust. Although the potential of numerical techniques is suggested by published and ongoing researches, improvements in the ca...
Conference Paper
Full-text available
The Gravettian settlements of Europe are considered as an expression of the human adaptation to harsh climates. In Southern Europe, however, favorable vegetation-climate conditions supported hunters-gatherers subsistence and the maintenance of their large-scale networks. This was also the case of the North-Adriatic plain and the Apennine mountain r...
Conference Paper
Full-text available
We evaluated pollen-climate models developed for past temperature reconstruction in northern Italy by comparing pollen-inferred temperature series with site-specific instrumental series in two records covering the last 200 years and provided with a pollen sample resolution of 5/9 years. Moderate to good correlation is found. We discuss the methodol...
Article
The Last Glaciation environmental history of the Po Plain (Northern Italy) is still poorly known. Here we present a multiproxy record from a compressed peat dated 33-30 ka cal BP, underlying the Last Glacial Maximum fluvio-glacial belt in the Adda River catchment. Slow river dynamics and subsurface water saturation granted stable surfaces supportin...
Article
Full-text available
Pollen assemblages are increasingly used for quantitative reconstructions of past climate parameters. Estimated temperatures and precipitations can be coupled with palaeoecological records to make their interpretation more robust. Although the potential of numerical techniques is suggested by published and ongoing researches, improvements in the ca...
Article
The Gravettian settlements of Europe are considered as an expression of the human adaptation to harsh climates. In Southern Europe, however, favorable vegetation-climate conditions supported hunters-gatherers subsistence and the maintenance of their large-scale networks. This was also the case of the North-Adriatic plain and the Apennine mountain r...
Article
We analyse the modern ecological response of mountain alder (Alnus viridis) pollen proportions (%) to climatic parameters along altitudinal gradients in two contrasting climate regions of the European Alps and calculate pollen accumulation rates (PAR) to detect the effect of snowmelt runoff. We also compare independent sediment proxies for alluvial...
Article
1. This paper addresses the origin and development of the oldest prehistoric pasture in the timberline ecotone known so far in the Alps and its relation to anthropogenic pressure and natural climate change. 2. Palaeoecological and geochemical techniques were applied on the Crotte Basse mire stratigraphy (2365 m a.s.l, northwestern Italy) to describ...
Article
Full-text available
Quaternary records provide an opportunity to examine the nature of the vegetation and fire responses to rapid past climate changes comparable in velocity and magnitude to those expected in the 21st-century. The best documented examples of rapid climate change in the past are the warming events associated with the Dansgaard–Oeschger (D–O) cycles dur...
Poster
Full-text available
Background. In 2015, a paper on the archaeobotany as a key tool ‘for the understanding of the bio-cultural diversity of the Italian landscape’ gave rise to a new initiative, the realization of the first cooperative network of archaeobotanists and palynologists working on archaeological sites located in Italy. The Botanical Record of Archaeobotany I...
Article
Full-text available
To improve our ability to reconstruct past environments and climate from fossil pollen records, modern proxy calibration studies along climatic and ecological gradients are needed. Here we present the first training set of modern pollen rain, vegetation, climate and terrain parameters developed along a 1700m-high transect in the western Italian Alp...
Article
In the ancient world beeswax and honey were of crucial importance not only for nutrition, but also for a range of activities including various artisanal practices. A rich body of iconographic and literary evidence has proven very informative, but archaeological data are strongly underrepresented in studies on ancient beekeeping. A multidisciplinary...
Article
Full-text available
Presentiamo il primo studio paleoecologico che abbraccia un’intera stratigrafia del sottosuolo del pianalto di Bergamo Alta, potente più di 3 metri, dalle fasi precedenti agli strati archeologici protourbani fino alla fase urbana e monumentale, non limitato allo studio dei soli strati propriamente archeologici. Tra il 2001 e il 2011 la Soprintenden...
Article
Full-text available
Quaternary records provide an opportunity to examine the nature of the vegetation and fire responses to rapid past climate changes comparable in velocity and magnitude to those expected in the 21st century. The best documented examples of rapid climate change in the past are the warming events associated with the Dansgaard-Oeschger (D-O) cycles dur...
Conference Paper
Full-text available
The Italian Apennine is dearth of evidence dating to the Mid Upper Paleolithic and at the present state one of the best known Gravettian settlement in this area is represented by the site of Fonte delle Mattinate, on the Marche Apennine ridge. After that discovery, no advancements have been made in surveying other patches of this long but crossable...
Book
Full-text available
The European Atlas of Forest Tree Species is the first comprehensive publication of such a unique and essential environmental resource, that is, our trees. Leading scientists and forestry professionals have contributed in the many stages of the production of this atlas, through the collection of ground data on the location of tree species, elaborat...
Chapter
Full-text available
Pinus mugo Turra, the dwarf mountain pine, is a small tree, or, more typically, a shrub with many spreading stems, and dense, two-needled shoots. Among European pines, it is the most tolerant to cold climates and to bedrock lithology, adapted to any rocky habitat in the high-altitude mountains of Central and Eastern Europe, while merging with the c...