Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous
Reconstructions of temperature and moisture regimes based on fossil leaves, combined with tree ring studies, detail the light regime, length of the growing season, and summer and winter temperatures of the Late Cretaceous Arctic. Such constraints have important implications for dinosaur feeding and...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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ELSEVIER SCIENCE BV
2016
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Online Access: | http://ir.ibcas.ac.cn/handle/2S10CLM1/25077 https://doi.org/10.1016/j.palaeo.2015.09.041 |
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ftchiacadscibcas:oai:ir.ibcas.ac.cn:2S10CLM1/25077 2023-05-15T14:54:31+02:00 Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous Herman, Alexei B. Spicer, Robert A. Spicer, Teresa E. V. 2016 http://ir.ibcas.ac.cn/handle/2S10CLM1/25077 https://doi.org/10.1016/j.palaeo.2015.09.041 英语 eng ELSEVIER SCIENCE BV PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.ibcas.ac.cn/handle/2S10CLM1/25077 doi:10.1016/j.palaeo.2015.09.041 cn.org.cspace.api.content.CopyrightPolicy@6cf1464a Late Cretaceous Arctic Plants Dinosaurs Climate Nesting Geography Physical Geosciences Multidisciplinary Paleontology PRINCE CREEK FORMATION CENTRAL NORTH SLOPE HIGH-LATITUDE ALASKA FLORA RIVER PALEOCENE EVOLUTION KORYAK Science Citation Index Expanded (SCI-EXPANDED) Article 期刊论文 2016 ftchiacadscibcas https://doi.org/10.1016/j.palaeo.2015.09.041 2022-07-27T09:10:51Z Reconstructions of temperature and moisture regimes based on fossil leaves, combined with tree ring studies, detail the light regime, length of the growing season, and summer and winter temperatures of the Late Cretaceous Arctic. Such constraints have important implications for dinosaur feeding and reproductive behaviour, and the capacity to reside year-round in near-polar environments. At the highest palaeolatitudes where dinosaurs have been found (82-85 degrees N) winter darkness lasted for similar to 120 days and the spring and autumn twilight periods for similar to 15 days. A mostly cloud and mist-shrouded environment witnessed a mean annual temperature (MAT) of 6-7 degrees C, a warm month mean temperature (WMMT) of 14.5 +/- 3.1 degrees C and a cold month mean temperature (CMMT) of -2 +/- 3.9 degrees C. Growth rings in wood suggest summer temperatures frequently fell below + 10 degrees C. Winter temperatures as low as -10 degrees C were likely for short periods. Spring bud break in late February to early March and leaf fall in early October limited the time when fresh food was available in any quantity to not more than 6 months. The diversity of Arctic dinosaur body sizes implies a range of overwintering strategies but year-round residency requires reproduction. Burrowing and enclosed nest building no doubt facilitated overwintering for small animals, but for larger dinosaurs shelter was problematical. No dinosaur egg remains have yet been found as far north as 82 degrees palaeolatitude, but they occur 6 further south in the Early Maastrichtian Kakanaut Formation, Northeastern Russia. Here the winter darkness was shorter (45 days), and the temperature regime warmer (MAT 10 degrees C, WMMT 19 degrees C, CIVIMT +3 degrees C). The growing season (temperatures > 10 degrees C) was similar to 6.3 months and fresh food was available in quantity for slightly longer. These summer temperatures constrain the thermal regime of nest environments and suggest sophisticated nest management and possibly brooding ... Article in Journal/Newspaper Arctic Koryak north slope Alaska Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) Arctic Prince Creek ENVELOPE(-38.067,-38.067,-54.017,-54.017) Palaeogeography, Palaeoclimatology, Palaeoecology 441 317 338 |
institution |
Open Polar |
collection |
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) |
op_collection_id |
ftchiacadscibcas |
language |
English |
topic |
Late Cretaceous Arctic Plants Dinosaurs Climate Nesting Geography Physical Geosciences Multidisciplinary Paleontology PRINCE CREEK FORMATION CENTRAL NORTH SLOPE HIGH-LATITUDE ALASKA FLORA RIVER PALEOCENE EVOLUTION KORYAK Science Citation Index Expanded (SCI-EXPANDED) |
spellingShingle |
Late Cretaceous Arctic Plants Dinosaurs Climate Nesting Geography Physical Geosciences Multidisciplinary Paleontology PRINCE CREEK FORMATION CENTRAL NORTH SLOPE HIGH-LATITUDE ALASKA FLORA RIVER PALEOCENE EVOLUTION KORYAK Science Citation Index Expanded (SCI-EXPANDED) Herman, Alexei B. Spicer, Robert A. Spicer, Teresa E. V. Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous |
topic_facet |
Late Cretaceous Arctic Plants Dinosaurs Climate Nesting Geography Physical Geosciences Multidisciplinary Paleontology PRINCE CREEK FORMATION CENTRAL NORTH SLOPE HIGH-LATITUDE ALASKA FLORA RIVER PALEOCENE EVOLUTION KORYAK Science Citation Index Expanded (SCI-EXPANDED) |
description |
Reconstructions of temperature and moisture regimes based on fossil leaves, combined with tree ring studies, detail the light regime, length of the growing season, and summer and winter temperatures of the Late Cretaceous Arctic. Such constraints have important implications for dinosaur feeding and reproductive behaviour, and the capacity to reside year-round in near-polar environments. At the highest palaeolatitudes where dinosaurs have been found (82-85 degrees N) winter darkness lasted for similar to 120 days and the spring and autumn twilight periods for similar to 15 days. A mostly cloud and mist-shrouded environment witnessed a mean annual temperature (MAT) of 6-7 degrees C, a warm month mean temperature (WMMT) of 14.5 +/- 3.1 degrees C and a cold month mean temperature (CMMT) of -2 +/- 3.9 degrees C. Growth rings in wood suggest summer temperatures frequently fell below + 10 degrees C. Winter temperatures as low as -10 degrees C were likely for short periods. Spring bud break in late February to early March and leaf fall in early October limited the time when fresh food was available in any quantity to not more than 6 months. The diversity of Arctic dinosaur body sizes implies a range of overwintering strategies but year-round residency requires reproduction. Burrowing and enclosed nest building no doubt facilitated overwintering for small animals, but for larger dinosaurs shelter was problematical. No dinosaur egg remains have yet been found as far north as 82 degrees palaeolatitude, but they occur 6 further south in the Early Maastrichtian Kakanaut Formation, Northeastern Russia. Here the winter darkness was shorter (45 days), and the temperature regime warmer (MAT 10 degrees C, WMMT 19 degrees C, CIVIMT +3 degrees C). The growing season (temperatures > 10 degrees C) was similar to 6.3 months and fresh food was available in quantity for slightly longer. These summer temperatures constrain the thermal regime of nest environments and suggest sophisticated nest management and possibly brooding ... |
format |
Article in Journal/Newspaper |
author |
Herman, Alexei B. Spicer, Robert A. Spicer, Teresa E. V. |
author_facet |
Herman, Alexei B. Spicer, Robert A. Spicer, Teresa E. V. |
author_sort |
Herman, Alexei B. |
title |
Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous |
title_short |
Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous |
title_full |
Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous |
title_fullStr |
Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous |
title_full_unstemmed |
Environmental constraints on terrestrial vertebrate behaviour and reproduction in the high Arctic of the Late Cretaceous |
title_sort |
environmental constraints on terrestrial vertebrate behaviour and reproduction in the high arctic of the late cretaceous |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2016 |
url |
http://ir.ibcas.ac.cn/handle/2S10CLM1/25077 https://doi.org/10.1016/j.palaeo.2015.09.041 |
long_lat |
ENVELOPE(-38.067,-38.067,-54.017,-54.017) |
geographic |
Arctic Prince Creek |
geographic_facet |
Arctic Prince Creek |
genre |
Arctic Koryak north slope Alaska |
genre_facet |
Arctic Koryak north slope Alaska |
op_relation |
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.ibcas.ac.cn/handle/2S10CLM1/25077 doi:10.1016/j.palaeo.2015.09.041 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@6cf1464a |
op_doi |
https://doi.org/10.1016/j.palaeo.2015.09.041 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
441 |
container_start_page |
317 |
op_container_end_page |
338 |
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1766326227729121280 |