LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 15

Search options

  1. Article: How complex is the evolution of small mammal communities during the Late Glacial in southwest France?

    Royer, Aurélien

    Quaternary international. 2016 Sept. 01, v. 414

    2016  

    Abstract: The Late Glacial was a slow gradual warming associated with short, cold events that occurred between 18.0 and 11.7 ka cal. BP. Pollen analyses from deep-sea and lacustrine cores have well documented the evolution of floral communities in western Europe ... ...

    Abstract The Late Glacial was a slow gradual warming associated with short, cold events that occurred between 18.0 and 11.7 ka cal. BP. Pollen analyses from deep-sea and lacustrine cores have well documented the evolution of floral communities in western Europe and suggest that climatic fluctuations influenced the evolution of terrestrial ecosystems. However, the exact impact of these climate changes on small faunal communities in southwest France is still poorly documented. Peyrazet Cave is an archaeological site located in the Lot (France) that has been excavated since 2008 and has yielded a Late Glacial sequence dated between 15.5 and 11.1 ka cal. BP. Thousands of small faunal remains resulting from a natural accumulation have been recovered. Investigation of this material has surprisingly revealed remains of two rodents that currently inhabit Central and Eastern Europe, the northern birch mouse (Sicista betulina) and the European hamster (Cricetus cricetus). The presence of these two taxa, which had migrated from the east and had been never documented in this region before the Late Glacial, is most likely related to short climatic fluctuations in the Late Glacial, suggesting more complex scenarios than traditionally accepted to explain the evolution of small faunal communities between the Last Glacial Maximum and the Holocene.
    Keywords climate change ; Cricetus ; fauna ; hamsters ; pollen analysis ; Sicista ; small mammals ; terrestrial ecosystems ; Eastern European region ; France ; Western European region
    Language English
    Dates of publication 2016-0901
    Size p. 23-33.
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 1040-6182
    DOI 10.1016/j.quaint.2015.12.065
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  2. Article: A taphonomic investigation of small vertebrate accumulations produced by the snowy owl (Bubo scandiacus) and its implications for fossil studies

    Royer, Aurélien / Sophie Montuire / Olivier Gilg / Véronique Laroulandie

    Palaeogeography, palaeoclimatology, palaeoecology. 2019 Jan. 15, v. 514

    2019  

    Abstract: The action of predators, such as diurnal raptors, owls, mammals or humans, influence the nature of small vertebrate fossil assemblages but currently their taphonomic features are still poorly understood. In this study, we investigate the taphonomic ... ...

    Abstract The action of predators, such as diurnal raptors, owls, mammals or humans, influence the nature of small vertebrate fossil assemblages but currently their taphonomic features are still poorly understood. In this study, we investigate the taphonomic signature of the snowy owl (Bubo scandiacus) based on an analysis of pellets collected at breeding sites located in Greenland and the Canadian Arctic. This taxon is widely distributed through the North Hemisphere and was an important predator in Pleistocene times. Taphonomic parameters suggest that, contrary to previous assumptions, B. scandiacus produces, on average, moderate digestion of incisors, molars and post-cranial elements, and should be classed as a Category 3 or Category 3/4 predator according to the terminology established by Andrews. Significant inter-site variability was observed for some of the damage considered (in particular, digestion on incisors), and a key finding is that variability and the associated statistical confidence intervals are crucial notions that should be taken into account when assessing taphonomical features, in order to reliably identify the potential predator(s) responsible for small vertebrate fossil accumulations.
    Keywords Bubo scandiacus ; birds of prey ; breeding sites ; confidence interval ; digestion ; fossils ; humans ; pellets ; terminology ; Arctic region ; Greenland
    Language English
    Dates of publication 2019-0115
    Size p. 189-205.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 417718-6
    ISSN 0031-0182
    ISSN 0031-0182
    DOI 10.1016/j.palaeo.2018.10.018
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  3. Article: New bioclimatic models for the quaternary palaearctic based on insectivore and rodent communities

    Royer, Aurélien / García Yelo, Blanca A / Laffont, Rémi / Hernández Fernández, Manuel

    Palaeogeography, palaeoclimatology, palaeoecology. 2020 Dec. 15, v. 560

    2020  

    Abstract: Mammal remains, preserved in archaeological and palaeontological deposits, are commonly used to reconstruct past terrestrial climates and environments. Here we propose new species-specific models for Bioclimatic Analysis, a palaeoclimatic method based on ...

    Abstract Mammal remains, preserved in archaeological and palaeontological deposits, are commonly used to reconstruct past terrestrial climates and environments. Here we propose new species-specific models for Bioclimatic Analysis, a palaeoclimatic method based on a climatic restriction index for each mammal species, discriminant analysis, and multiple linear regressions. Our new models are based on small mammal associations, particularly insectivores and rodents, from Quaternary paleoarctic contexts. A dataset including new localities and an updated taxonomy was constructed in order to develop two approaches, the first using only Rodentia, the second based on associations including both Rodentia and Eulipotyphla. Both approaches proved to be reliable for inferring both climate zone and quantifying temperature, precipitation, and seasonality. Rarefaction analysis revealed these new models to be reliable even when a substantial percentage of species from the original palaeocommunity was absent from the fossil site. Application of these new models to small mammal associations from two sequences (Balma de l'Abeurador, France and El Mirón, Spain) spanning from the Last Glacial Maximum to the Holocene are consistent with the primary climatic changes recorded by regional Pyrenean proxies and showed an increase in mean annual temperature of between 3 and 5 °C.
    Keywords Holocene epoch ; Palearctic region ; Rodentia ; archaeology ; climatic zones ; data collection ; discriminant analysis ; fossils ; insectivores ; palaeogeography ; paleoclimatology ; paleoecology ; rodents ; small mammals ; taxonomy ; temperature ; France ; Spain
    Language English
    Dates of publication 2020-1215
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 417718-6
    ISSN 0031-0182
    ISSN 0031-0182
    DOI 10.1016/j.palaeo.2020.110040
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article: Seasonal demography of different black rat (Rattus rattus) populations under contrasting natural habitats in Guadeloupe (Lesser Antilles, Caribbean)

    Goedert, Jean / Cochard, David / Lenoble, Arnaud / Lorvelec, Olivier / Pisanu, Benoît / Royer, Aurélien

    Mammal research. 2020 Oct., v. 65, no. 4

    2020  

    Abstract: The black rat (Rattus rattus) is one of the most widespread rodents on islands worldwide, introduced over the last five centuries. However, reliable information concerning how biotic or abiotic factors influence key parameters of black rat population ... ...

    Abstract The black rat (Rattus rattus) is one of the most widespread rodents on islands worldwide, introduced over the last five centuries. However, reliable information concerning how biotic or abiotic factors influence key parameters of black rat population biology in insular contexts is currently unavailable. Here we aim to document the relative abundance of rat populations and evaluate how the age structure and the body mass of adult individual vary seasonally in different forest environments under contrasting climatic conditions. Rats were captured during wet and dry seasons in 2017–2018 at one or two sites in each of the four natural forested environments of Guadeloupe, all of which experience widely different annual rainfall (semi-deciduous dry forest, seasonal evergreen forest, mountain rainforest and Pterocarpus officinalis swamp forest). A total of 171 black rats were captured during a 1018 trap-night effort. Overall capture results confirm this species to thrive in all the natural forested environments we investigated. With the exception of the P. officinalis swamp forest, black rat populations reach higher relative abundances during the wet season due to juvenile and sub-adult recruitment at the end of the dry season. In contrast, in the P. officinalis swamp forest, breeding activity continues during both seasons and relative rat abundance appears to fluctuate less seasonally. The relative abundance of adult black rats is also higher in the seasonal semi-evergreen and rainforests that experience little or no water stress. These contexts therefore appear the most favourable for sustaining black rat populations, a pattern that is most likely connected to a combination of climatic and/or edaphic parameters that condition the year-round availability and abundance of food resources.
    Keywords Pterocarpus officinalis ; Rattus rattus ; adults ; age structure ; body weight ; demography ; dry forests ; dry season ; evergreen forests ; juveniles ; rain ; rain forests ; rats ; research ; seasonal variation ; swamps ; water stress ; wet season ; Caribbean ; Guadeloupe
    Language English
    Dates of publication 2020-10
    Size p. 793-804.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    Note NAL-light
    ZDB-ID 2808353-2
    ISSN 2199-241X ; 2199-2401
    ISSN (online) 2199-241X
    ISSN 2199-2401
    DOI 10.1007/s13364-020-00523-w
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  5. Article ; Online: Carbon, nitrogen and oxygen isotope fractionation during food cooking: Implications for the interpretation of the fossil human record.

    Royer, Aurélien / Daux, Valérie / Fourel, François / Lécuyer, Christophe

    American journal of physical anthropology

    2017  Volume 163, Issue 4, Page(s) 759–771

    Abstract: Objectives: Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components.: Methods: ... ...

    Abstract Objectives: Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components.
    Methods: To address this issue, carbon, nitrogen and oxygen isotope ratios were measured on meat aliquots sampled from various animals such as pork, beef, duck and chicken, and also from the flesh of fishes such as salmon, European seabass, European pilchard, sole, gilt-head bream, and tuna. For each specimen, three pieces were cooked according to the three most commonly-known cooking practices: boiling, frying and roasting on a barbecue.
    Results: Our data show that cooking produced isotopic shifts up to 1.8‰, 3.5‰, and 5.2‰ for δ
    Conclusions: Reconstructions of paleodietary may thus suffer slight bias in cases of populations with undiversified diets that are restrained toward a specific raw or cooked product, or using a specific cooking mode. In cases of oxygen isotope compositions from skeletal remains (bones, teeth), they not only constitute a valuable proxy for reconstructing past climatic conditions, but they could also be used to improve our knowledge of past human diet.
    MeSH term(s) Animals ; Anthropology, Physical ; Cattle ; Chickens ; Cooking ; Diet ; Food Analysis/methods ; Fossils ; Humans ; Isotopes/analysis ; Meat/analysis ; Salmon ; Swine
    Chemical Substances Isotopes
    Language English
    Publishing date 2017-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 219376-0
    ISSN 1096-8644 ; 0002-9483
    ISSN (online) 1096-8644
    ISSN 0002-9483
    DOI 10.1002/ajpa.23246
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Rabbits in the grave! Consequences of bioturbation on the Neandertal "burial" at Regourdou (Montignac-sur-Vézère, Dordogne).

    Pelletier, Maxime / Royer, Aurélien / Holliday, Trenton W / Discamps, Emmanuel / Madelaine, Stéphane / Maureille, Bruno

    Journal of human evolution

    2017  Volume 110, Page(s) 1–17

    Abstract: The understanding of Neanderthal societies, both with regard to their funerary behaviors and their subsistence activities, is hotly debated. Old excavations and a lack of taphonomic context are often factors that limit our ability to address these ... ...

    Abstract The understanding of Neanderthal societies, both with regard to their funerary behaviors and their subsistence activities, is hotly debated. Old excavations and a lack of taphonomic context are often factors that limit our ability to address these questions. To better appreciate the exact nature of what is potentially the oldest burial in Western Europe, Regourdou (Montignac-sur-Vézère, Dordogne), and to better understand the taphonomy of this site excavated more than 50 years ago, we report in this contribution a study of the most abundant animals throughout its stratigraphy: the European rabbit (Oryctolagus cuniculus). In addition to questions surrounding the potential bioturbation of the site's stratigraphy, analysis of the Regourdou rabbits could provide new information on Neandertal subsistence behavior. The mortality profile, skeletal-part representation, breakage patterns, surface modification, and comparison with modern reference collections supports the hypothesis that the Regourdou rabbit remains were primarily accumulated due to natural (attritional) mortality. Radiocarbon dates performed directly on the rabbit remains give ages ranging within the second half of Marine Isotope Stage 3, notably younger than the regional Mousterian period. We posit that rabbits dug their burrows within Regourdou's sedimentological filling, likely inhabiting the site after it was filled. The impact of rabbit activity now brings into question both the reliability of the archaeostratigraphy of the site and the paleoenvironmental reconstructions previously proposed for it, and suggests rabbits may have played a role in the distribution of the Neandertal skeletal remains.
    MeSH term(s) Animals ; Burial ; Europe ; Fossils ; Neanderthals ; Rabbits ; Radiometric Dating ; Reproducibility of Results ; Time Factors
    Language English
    Publishing date 2017-07-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120141-4
    ISSN 1095-8606 ; 0047-2484
    ISSN (online) 1095-8606
    ISSN 0047-2484
    DOI 10.1016/j.jhevol.2017.04.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Ancient DNA reveals interstadials as a driver of common vole population dynamics during the last glacial period

    Baca, Mateusz / Popović, Danijela / Lemanik, Anna / Bañuls‐Cardona, Sandra / Conard, Nicholas J. / Cuenca‐Bescós, Gloria / Desclaux, Emmanuel / Fewlass, Helen / Garcia, Jesus T. / Hadravova, Tereza / Heckel, Gerald / Horáček, Ivan / Knul, Monika Vlasta / Lebreton, Loïc / López‐García, Juan Manuel / Luzi, Elisa / Marković, Zoran / Mauch Lenardić, Jadranka / Murelaga, Xabier /
    Noiret, Pierre / Petculescu, Alexandru / Popov, Vasil / Rhodes, Sara E. / Ridush, Bogdan / Royer, Aurélien / Stewart, John R. / Stojak, Joanna / Talamo, Sahra / Wang, Jerry H. C. / Wójcik, Jan M. / Nadachowski, Adam

    Journal of Biogeography. 2023 Jan., v. 50, no. 1 p.183-196

    2023  

    Abstract: AIM: Many species experienced population turnover and local extinction during the Late Pleistocene. In the case of megafauna, it remains challenging to disentangle climate change and the activities of Palaeolithic hunter‐gatherers as the main cause. In ... ...

    Abstract AIM: Many species experienced population turnover and local extinction during the Late Pleistocene. In the case of megafauna, it remains challenging to disentangle climate change and the activities of Palaeolithic hunter‐gatherers as the main cause. In contrast, the impact of humans on rodent populations is likely to be negligible. This study investigated which climatic and/or environmental factors affect the population dynamics of the common vole. This temperate rodent is widespread across Europe and was one of the most abundant small mammal species throughout the Late Pleistocene. LOCATION: Europe. TAXON: Common vole (Microtus arvalis). METHODS: We generated a dataset comprised of 4.2 kb long fragment of mitochondrial DNA (mtDNA) from 148 ancient and 51 modern specimens sampled from multiple localities across Europe and covering the last 60 thousand years (ka). We used Bayesian inference to reconstruct their phylogenetic relationships and to estimate the age of the specimens that were not directly dated. RESULTS: We estimated the time to the most recent common ancestor of all last glacial and extant common vole lineages to be 90 ka ago and the divergence of the main mtDNA lineages present in extant populations to between 55 and 40 ka ago, which is earlier than most previous estimates. We detected several lineage turnovers in Europe during the period of high climate variability at the end of Marine Isotope Stage 3 (MIS 3; 57–29 ka ago) in addition to those found previously around the Pleistocene/Holocene transition. In contrast, data from the Western Carpathians suggest continuity throughout the Last Glacial Maximum (LGM) even at high latitudes. MAIN CONCLUSIONS: The main factor affecting the common vole populations during the last glacial period was the decrease in open habitat during the interstadials, whereas climate deterioration during the LGM had little impact on population dynamics. This suggests that the rapid environmental change rather than other factors was the major force shaping the histories of the Late Pleistocene faunas.
    Keywords Bayesian theory ; Holocene epoch ; Microtus arvalis ; Pleistocene epoch ; ancestry ; biogeography ; climate ; climate change ; data collection ; extinction ; fauna ; habitats ; mitochondrial DNA ; paleoclimatology ; phylogeny ; population dynamics ; rodents ; small mammals ; Carpathian region ; Europe
    Language English
    Dates of publication 2023-01
    Size p. 183-196.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 188963-1
    ISSN 0305-0270
    ISSN 0305-0270
    DOI 10.1111/jbi.14521
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article ; Online: Investigating the Influence of Climate Changes on Rodent Communities at a Regional-Scale (MIS 1-3, Southwestern France).

    Royer, Aurélien / Montuire, Sophie / Legendre, Serge / Discamps, Emmanuel / Jeannet, Marcel / Lécuyer, Christophe

    PloS one

    2016  Volume 11, Issue 1, Page(s) e0145600

    Abstract: Terrestrial ecosystems have continuously evolved throughout the Late Pleistocene and the Holocene, deeply affected by both progressive environmental and climatic modifications, as well as by abrupt and large climatic changes such as the Heinrich or ... ...

    Abstract Terrestrial ecosystems have continuously evolved throughout the Late Pleistocene and the Holocene, deeply affected by both progressive environmental and climatic modifications, as well as by abrupt and large climatic changes such as the Heinrich or Dansgaard-Oeschger events. Yet, the impacts of these different events on terrestrial mammalian communities are poorly known, as is the role played by potential refugia on geographical species distributions. This study examines community changes in rodents of southwestern France between 50 and 10 ky BP by integrating 94 dated faunal assemblages coming from 37 archaeological sites. This work reveals that faunal distributions were modified in response to abrupt and brief climatic events, such as Heinrich events, without actually modifying the rodent community on a regional scale. However, the succession of events which operated between the Late Pleistocene and the Holocene gradually led to establishing a new rodent community at the regional scale, with intermediate communities occurring between the Bølling and the Allerød.
    MeSH term(s) Animals ; Climate Change ; Fossils ; France ; Geologic Sediments/analysis ; Rodentia
    Language English
    Publishing date 2016-01-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0145600
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Summer air temperature, reconstructions from the last glacial stage based on rodents from the site Taillis-des-Coteaux (Vienne), Western France

    Royer, Aurélien / Christophe Lécuyer / François Fourel / Jérôme Primault / Marcel Jeannet / Sophie Montuire

    University of Washington Quaternary research. 2014 Sept., v. 82, no. 2

    2014  

    Abstract: The oxygen isotope composition of phosphate from tooth enamel of rodents (δ18Op) constitutes a valuable proxy to reconstruct past air temperatures in continental environments. This method has been applied to rodent dental remains from three genera, ... ...

    Abstract The oxygen isotope composition of phosphate from tooth enamel of rodents (δ18Op) constitutes a valuable proxy to reconstruct past air temperatures in continental environments. This method has been applied to rodent dental remains from three genera, Arvicola sp., Microtus sp. and Dicrostonyx sp., coming from Taillis-des-Coteaux, Vienne, France. This archaeological site contains an exceptionally preserved sedimentary sequence spanning almost the whole Upper Palaeolithic, including seven stratigraphic layers dated from 35 to 17calkaBP. The abundant presence of rodent remains offers the opportunity to quantify the climatic fluctuations coeval of the various stages of human occupation of the site. Differences between δ18Op values of Arvicola sp. and Microtus sp. teeth are interpreted as the result of heterochrony in tooth formation as well as differences in ecology. Mean δ18Op values of Microtus sp. are preferentially used to reconstruct summer air temperatures, which range from 16.0±3.7 to 19.1±3.1°C throughout the sedimentary sequence; however, the highest variability is observed during the last glacial maximum.
    Keywords air temperature ; Arvicola ; Dicrostonyx ; ecology ; humans ; isotopes ; Microtus ; oxygen ; phosphates ; rodents ; summer ; tooth enamel ; France
    Language English
    Dates of publication 2014-09
    Size p. 420-429.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 205711-6
    ISSN 0033-5894
    ISSN 0033-5894
    DOI 10.1016/j.yqres.2014.06.006
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  10. Article ; Online: Record of Nile seasonality in Nubian neonates.

    Martin, Céline / Maureille, Bruno / Amiot, Romain / Touzeau, Alexandra / Royer, Aurélien / Fourel, François / Panczer, Gérard / Flandrois, Jean-Pierre / Lécuyer, Christophe

    Isotopes in environmental and health studies

    2017  Volume 53, Issue 3, Page(s) 223–242

    Abstract: The oxygen isotope compositions of bones (n = 11) and teeth (n = 20) from 12 Sudanese individuals buried on Sai Island (Nubia) were analysed to investigate the registration of the evolution of the Nile environment from 3700 to 500 years BP and the ... ...

    Abstract The oxygen isotope compositions of bones (n = 11) and teeth (n = 20) from 12 Sudanese individuals buried on Sai Island (Nubia) were analysed to investigate the registration of the evolution of the Nile environment from 3700 to 500 years BP and the potential effects of ontogeny on the oxygen isotope ratios. The isotopic compositions were converted into the composition of drinking water, ultimately originating from the Nile. δ
    MeSH term(s) Adult ; Apatites/analysis ; Bone and Bones/chemistry ; Child, Preschool ; Climate Change/history ; Environmental Monitoring ; Fetus/chemistry ; History, Ancient ; History, Medieval ; Humans ; Infant ; Infant, Newborn ; Oxygen Isotopes/analysis ; Phosphates/analysis ; Rivers/chemistry ; Seasons ; Sudan ; Tooth/chemistry ; Water Movements ; Young Adult
    Chemical Substances Apatites ; Oxygen Isotopes ; Phosphates
    Language English
    Publishing date 2017-06
    Publishing country England
    Document type Historical Article ; Journal Article
    ZDB-ID 2100190-X
    ISSN 1477-2639 ; 1025-6016
    ISSN (online) 1477-2639
    ISSN 1025-6016
    DOI 10.1080/10256016.2016.1229667
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top