AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar
The article reports the radiocarbon investigation of Anzapalivoro, the largest za baobab (Adansonia za) specimen of Madagascar and of another za, namely the Big cistern baobab. Several wood samples collected from the large inner cavity and from the outer part/exterior of the tree were investigated by AMS (accelerator mass spectrometry) radiocarbon dating. For samples collected from the cavity walls, the age values increase with the distance into the wood up to a point of maximum age, after which the values decrease toward the outer part. This anomaly of age sequences indicates that the inner cavity of Anzapalivoro is a false cavity, practically an empty space between several fused stems disposed in a ring-shaped structure. The radiocarbon date of the oldest sample was 780 ± 30 bp, which corresponds to a calibrated age of around 735 yr. Dating results indicate that Anzapalivoro has a closed ring-shaped structure, which consists of 5 fused stems that close a false cavity. The oldest part of the biggest za baobab has a calculated age of 900 years. We also disclose results of the investigation of a second za baobab, the Big cistern baobab, which was hollowed out for water storage. This specimen, which consists of 4 fused stems, was found to be around 260 years old.
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dig-cirad-fr-5792422024-01-28T23:14:53Z http://agritrop.cirad.fr/579242/ http://agritrop.cirad.fr/579242/ AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar. Patrut Adrian, Patrut Roxana Teodora, Danthu Pascal, Leong Pock Tsy Jean-Michel, Rakosy Laszlo, Lowy Daniel A., Von Reden Karl F.. 2016. PloS One, 11 (1):e0146977, 18 p.https://doi.org/10.1371/journal.pone.0146977 <https://doi.org/10.1371/journal.pone.0146977> AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar Patrut, Adrian Patrut, Roxana Teodora Danthu, Pascal Leong Pock Tsy, Jean-Michel Rakosy, Laszlo Lowy, Daniel A. Von Reden, Karl F. eng 2016 PloS One K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie F50 - Anatomie et morphologie des plantes Adansonia Adansonia digitata identification datation au radiocarbone taxonomie âge distribution géographique port de la plante anatomie végétale spectrométrie de masse cerne bois Adansonia grandidieri Adansonia rubrostipa Adansonia za http://aims.fao.org/aos/agrovoc/c_35519 http://aims.fao.org/aos/agrovoc/c_331478 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_13732 http://aims.fao.org/aos/agrovoc/c_7631 http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_5969 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_12421 http://aims.fao.org/aos/agrovoc/c_3399 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_279b6511 http://aims.fao.org/aos/agrovoc/c_ac425c7f http://aims.fao.org/aos/agrovoc/c_de9c7599 Madagascar http://aims.fao.org/aos/agrovoc/c_4510 The article reports the radiocarbon investigation of Anzapalivoro, the largest za baobab (Adansonia za) specimen of Madagascar and of another za, namely the Big cistern baobab. Several wood samples collected from the large inner cavity and from the outer part/exterior of the tree were investigated by AMS (accelerator mass spectrometry) radiocarbon dating. For samples collected from the cavity walls, the age values increase with the distance into the wood up to a point of maximum age, after which the values decrease toward the outer part. This anomaly of age sequences indicates that the inner cavity of Anzapalivoro is a false cavity, practically an empty space between several fused stems disposed in a ring-shaped structure. The radiocarbon date of the oldest sample was 780 ± 30 bp, which corresponds to a calibrated age of around 735 yr. Dating results indicate that Anzapalivoro has a closed ring-shaped structure, which consists of 5 fused stems that close a false cavity. The oldest part of the biggest za baobab has a calculated age of 900 years. We also disclose results of the investigation of a second za baobab, the Big cistern baobab, which was hollowed out for water storage. This specimen, which consists of 4 fused stems, was found to be around 260 years old. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/579242/1/Patrut%202016.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1371/journal.pone.0146977 10.1371/journal.pone.0146977 info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0146977 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1371/journal.pone.0146977 |
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K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie F50 - Anatomie et morphologie des plantes Adansonia Adansonia digitata identification datation au radiocarbone taxonomie âge distribution géographique port de la plante anatomie végétale spectrométrie de masse cerne bois Adansonia grandidieri Adansonia rubrostipa Adansonia za http://aims.fao.org/aos/agrovoc/c_35519 http://aims.fao.org/aos/agrovoc/c_331478 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_13732 http://aims.fao.org/aos/agrovoc/c_7631 http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_5969 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_12421 http://aims.fao.org/aos/agrovoc/c_3399 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_279b6511 http://aims.fao.org/aos/agrovoc/c_ac425c7f http://aims.fao.org/aos/agrovoc/c_de9c7599 http://aims.fao.org/aos/agrovoc/c_4510 K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie F50 - Anatomie et morphologie des plantes Adansonia Adansonia digitata identification datation au radiocarbone taxonomie âge distribution géographique port de la plante anatomie végétale spectrométrie de masse cerne bois Adansonia grandidieri Adansonia rubrostipa Adansonia za http://aims.fao.org/aos/agrovoc/c_35519 http://aims.fao.org/aos/agrovoc/c_331478 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_13732 http://aims.fao.org/aos/agrovoc/c_7631 http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_5969 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_12421 http://aims.fao.org/aos/agrovoc/c_3399 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_279b6511 http://aims.fao.org/aos/agrovoc/c_ac425c7f http://aims.fao.org/aos/agrovoc/c_de9c7599 http://aims.fao.org/aos/agrovoc/c_4510 |
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K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie F50 - Anatomie et morphologie des plantes Adansonia Adansonia digitata identification datation au radiocarbone taxonomie âge distribution géographique port de la plante anatomie végétale spectrométrie de masse cerne bois Adansonia grandidieri Adansonia rubrostipa Adansonia za http://aims.fao.org/aos/agrovoc/c_35519 http://aims.fao.org/aos/agrovoc/c_331478 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_13732 http://aims.fao.org/aos/agrovoc/c_7631 http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_5969 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_12421 http://aims.fao.org/aos/agrovoc/c_3399 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_279b6511 http://aims.fao.org/aos/agrovoc/c_ac425c7f http://aims.fao.org/aos/agrovoc/c_de9c7599 http://aims.fao.org/aos/agrovoc/c_4510 K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie F50 - Anatomie et morphologie des plantes Adansonia Adansonia digitata identification datation au radiocarbone taxonomie âge distribution géographique port de la plante anatomie végétale spectrométrie de masse cerne bois Adansonia grandidieri Adansonia rubrostipa Adansonia za http://aims.fao.org/aos/agrovoc/c_35519 http://aims.fao.org/aos/agrovoc/c_331478 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_13732 http://aims.fao.org/aos/agrovoc/c_7631 http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_5969 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_12421 http://aims.fao.org/aos/agrovoc/c_3399 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_279b6511 http://aims.fao.org/aos/agrovoc/c_ac425c7f http://aims.fao.org/aos/agrovoc/c_de9c7599 http://aims.fao.org/aos/agrovoc/c_4510 Patrut, Adrian Patrut, Roxana Teodora Danthu, Pascal Leong Pock Tsy, Jean-Michel Rakosy, Laszlo Lowy, Daniel A. Von Reden, Karl F. AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar |
description |
The article reports the radiocarbon investigation of Anzapalivoro, the largest za baobab (Adansonia za) specimen of Madagascar and of another za, namely the Big cistern baobab. Several wood samples collected from the large inner cavity and from the outer part/exterior of the tree were investigated by AMS (accelerator mass spectrometry) radiocarbon dating. For samples collected from the cavity walls, the age values increase with the distance into the wood up to a point of maximum age, after which the values decrease toward the outer part. This anomaly of age sequences indicates that the inner cavity of Anzapalivoro is a false cavity, practically an empty space between several fused stems disposed in a ring-shaped structure. The radiocarbon date of the oldest sample was 780 ± 30 bp, which corresponds to a calibrated age of around 735 yr. Dating results indicate that Anzapalivoro has a closed ring-shaped structure, which consists of 5 fused stems that close a false cavity. The oldest part of the biggest za baobab has a calculated age of 900 years. We also disclose results of the investigation of a second za baobab, the Big cistern baobab, which was hollowed out for water storage. This specimen, which consists of 4 fused stems, was found to be around 260 years old. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales F70 - Taxonomie végétale et phytogéographie F50 - Anatomie et morphologie des plantes Adansonia Adansonia digitata identification datation au radiocarbone taxonomie âge distribution géographique port de la plante anatomie végétale spectrométrie de masse cerne bois Adansonia grandidieri Adansonia rubrostipa Adansonia za http://aims.fao.org/aos/agrovoc/c_35519 http://aims.fao.org/aos/agrovoc/c_331478 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_13732 http://aims.fao.org/aos/agrovoc/c_7631 http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_5969 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_12421 http://aims.fao.org/aos/agrovoc/c_3399 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_279b6511 http://aims.fao.org/aos/agrovoc/c_ac425c7f http://aims.fao.org/aos/agrovoc/c_de9c7599 http://aims.fao.org/aos/agrovoc/c_4510 |
author |
Patrut, Adrian Patrut, Roxana Teodora Danthu, Pascal Leong Pock Tsy, Jean-Michel Rakosy, Laszlo Lowy, Daniel A. Von Reden, Karl F. |
author_facet |
Patrut, Adrian Patrut, Roxana Teodora Danthu, Pascal Leong Pock Tsy, Jean-Michel Rakosy, Laszlo Lowy, Daniel A. Von Reden, Karl F. |
author_sort |
Patrut, Adrian |
title |
AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar |
title_short |
AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar |
title_full |
AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar |
title_fullStr |
AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar |
title_full_unstemmed |
AMS radiocarbon dating of large za baobabs (Adansonia za) of Madagascar |
title_sort |
ams radiocarbon dating of large za baobabs (adansonia za) of madagascar |
url |
http://agritrop.cirad.fr/579242/ http://agritrop.cirad.fr/579242/1/Patrut%202016.pdf |
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