Dental incremental lines in some small species of the European vespertilionid bats
The dentine and cementum of the mammals exhibit incremental lines (IL) that may be seen as dark and light rings in properly prepared sections of teeth. Counting of IL provides a potential method to evaluate the absolute age of many wild species. The aim of the present study was to evaluate IL in sma...
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ftlitinstagrecon:oai:elaba:4764196 2023-05-15T15:37:52+02:00 Dental incremental lines in some small species of the European vespertilionid bats Batulevičius, Darius Paužienė, Neringa Pauža, Dainius-Haroldas 2001 http://lsmu.lvb.lt/LSMU:ELABAPDB4764196&prefLang=en_US eng eng info:eu-repo/semantics/altIdentifier/doi/10.1007/BF03192414 http://lsmu.lvb.lt/LSMU:ELABAPDB4764196&prefLang=en_US Acta Theriologica, 2001, vol. 46, no. 1, p. 33-42 : ISSN 0001-7051 info:eu-repo/classification/udc/57 info:eu-repo/semantics/article 2001 ftlitinstagrecon https://doi.org/10.1007/BF03192414 2021-12-02T00:11:10Z The dentine and cementum of the mammals exhibit incremental lines (IL) that may be seen as dark and light rings in properly prepared sections of teeth. Counting of IL provides a potential method to evaluate the absolute age of many wild species. The aim of the present study was to evaluate IL in small bat species and to test whether the number of IL is associated with the absolute age of bat when its minimal age was known based on ringing data. Teeth of 26 specimens of the following species were examined: Myotis daubentonii (n = 12), Barbastella barbastellus (n = 4), M. brandtii (n = 2), M. nattereri (n = 2), Pipistrellus nathusii (n = 2), Plecotus auritus (n = 2), M. dasycneme (n = 1), Vespertilio murinus (n = 1). Transverse morphological sections of canines, incisors and postcanine teeth were analysed by a light microscopy. In 4 cases, the minimal age of animals examined in this study was known. The IL were revealed in the dentine of 14 bats examined. The cementum of all animals was devoid of IL. The mean distance between the first and second juxtaposed IL of M. daubentonii was 3.2 ± 0.2 µm, but it was significantly fewer among the subsequent adjacent lines. Due to a thinness of the IL, an accurate counting was considerably difficult in the canines containing more than 10 IL, as well as in the incisors and postcanine teeth with more than 3-6 IL. The IL of roots showed the most contrast, but they were almost obscured from view at the cingulum and crown. In bats of known-age, the numbers of IL were significantly lower than minimal age of those animals examined, and IL were either revealed only in certain teeth or absent entirely in all teeth. The present findings suggest that the number of the IL varies in different teeth and is strongly dependent on section level. Consequently, age determination in small bats using dental IL is doubtful and requires a reevaluation. Article in Journal/Newspaper Barbastella barbastellus Pipistrellus nathusii Vespertilio murinus LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) Acta Theriologica 46 1 33 42 |
institution |
Open Polar |
collection |
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
op_collection_id |
ftlitinstagrecon |
language |
English |
topic |
info:eu-repo/classification/udc/57 |
spellingShingle |
info:eu-repo/classification/udc/57 Batulevičius, Darius Paužienė, Neringa Pauža, Dainius-Haroldas Dental incremental lines in some small species of the European vespertilionid bats |
topic_facet |
info:eu-repo/classification/udc/57 |
description |
The dentine and cementum of the mammals exhibit incremental lines (IL) that may be seen as dark and light rings in properly prepared sections of teeth. Counting of IL provides a potential method to evaluate the absolute age of many wild species. The aim of the present study was to evaluate IL in small bat species and to test whether the number of IL is associated with the absolute age of bat when its minimal age was known based on ringing data. Teeth of 26 specimens of the following species were examined: Myotis daubentonii (n = 12), Barbastella barbastellus (n = 4), M. brandtii (n = 2), M. nattereri (n = 2), Pipistrellus nathusii (n = 2), Plecotus auritus (n = 2), M. dasycneme (n = 1), Vespertilio murinus (n = 1). Transverse morphological sections of canines, incisors and postcanine teeth were analysed by a light microscopy. In 4 cases, the minimal age of animals examined in this study was known. The IL were revealed in the dentine of 14 bats examined. The cementum of all animals was devoid of IL. The mean distance between the first and second juxtaposed IL of M. daubentonii was 3.2 ± 0.2 µm, but it was significantly fewer among the subsequent adjacent lines. Due to a thinness of the IL, an accurate counting was considerably difficult in the canines containing more than 10 IL, as well as in the incisors and postcanine teeth with more than 3-6 IL. The IL of roots showed the most contrast, but they were almost obscured from view at the cingulum and crown. In bats of known-age, the numbers of IL were significantly lower than minimal age of those animals examined, and IL were either revealed only in certain teeth or absent entirely in all teeth. The present findings suggest that the number of the IL varies in different teeth and is strongly dependent on section level. Consequently, age determination in small bats using dental IL is doubtful and requires a reevaluation. |
format |
Article in Journal/Newspaper |
author |
Batulevičius, Darius Paužienė, Neringa Pauža, Dainius-Haroldas |
author_facet |
Batulevičius, Darius Paužienė, Neringa Pauža, Dainius-Haroldas |
author_sort |
Batulevičius, Darius |
title |
Dental incremental lines in some small species of the European vespertilionid bats |
title_short |
Dental incremental lines in some small species of the European vespertilionid bats |
title_full |
Dental incremental lines in some small species of the European vespertilionid bats |
title_fullStr |
Dental incremental lines in some small species of the European vespertilionid bats |
title_full_unstemmed |
Dental incremental lines in some small species of the European vespertilionid bats |
title_sort |
dental incremental lines in some small species of the european vespertilionid bats |
publishDate |
2001 |
url |
http://lsmu.lvb.lt/LSMU:ELABAPDB4764196&prefLang=en_US |
genre |
Barbastella barbastellus Pipistrellus nathusii Vespertilio murinus |
genre_facet |
Barbastella barbastellus Pipistrellus nathusii Vespertilio murinus |
op_source |
Acta Theriologica, 2001, vol. 46, no. 1, p. 33-42 : ISSN 0001-7051 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/BF03192414 http://lsmu.lvb.lt/LSMU:ELABAPDB4764196&prefLang=en_US |
op_doi |
https://doi.org/10.1007/BF03192414 |
container_title |
Acta Theriologica |
container_volume |
46 |
container_issue |
1 |
container_start_page |
33 |
op_container_end_page |
42 |
_version_ |
1766368532964048896 |