Reproductive ecology of the endangered Beal's-eyed turtle, Sacalia bealei

Liu Lin, Qingru Hu, Jonathan Julio Fong, Jiangbo Yang, Zhongdong Chen, Feiyu Zhou, Jichao Wang, Fanrong Xiao, Haitao Shi*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)

Abstract

The Beal's-eyed turtle (Sacalia bealei) is endemic to southeastern China and endangered due to poaching and habitat loss. Knowledge of S. bealei ecology is lacking and this study provides baseline information of its reproduction in a natural environment. We studied the reproductive ecology of S. bealei using X-ray, spool-and-line tracking, and direct observation. Six nesting females were successfully tracked and their nesting behaviors are documented in detail. Females produced a mean clutch size of 2.2 eggs (range 1-3). The hard-shelled eggs were ellipsoidal with a mean length of 45.50 mm, a mean width of 23.20 mm, and mean weight of 14.8 g. The relative clutch mass was 9.47%, while the relative egg mass was 4.60%. The mean incubation period was 94.7 days with a mean nest temperature of 25.08 ° C. Hatchlings had a mean weight of 9.7 g, carapace length of 40.1 mm, carapace width of 33.3 mm, carapace height of 17.4 mm, plastron length of 31.6 mm, and plastron width of 25.4 mm. The results of this study provide important information to inform conservation plans and ex-situ breeding for this endangered species.

Original languageEnglish
Article numbere4997
JournalPeerJ
Volume6
DOIs
Publication statusPublished - 14 Jun 2018

Fingerprint

Animal Shells
Turtles
Clutches
Ecology
turtles
ecology
Eggs
Reels
Nesting Behavior
Clutch Size
Weights and Measures
Endangered Species
Conservation
egg weight
habitat destruction
clutch size
X rays
endangered species
Breeding
Reproduction

Keywords

  • Animal behavior
  • Beal's Eyed Turtle
  • Conservation
  • Ecology
  • Incubation
  • Nesting behavior
  • Turtle conservation

Cite this

Lin, Liu ; Hu, Qingru ; Fong, Jonathan Julio ; Yang, Jiangbo ; Chen, Zhongdong ; Zhou, Feiyu ; Wang, Jichao ; Xiao, Fanrong ; Shi, Haitao. / Reproductive ecology of the endangered Beal's-eyed turtle, Sacalia bealei. In: PeerJ. 2018 ; Vol. 6.
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abstract = "The Beal's-eyed turtle (Sacalia bealei) is endemic to southeastern China and endangered due to poaching and habitat loss. Knowledge of S. bealei ecology is lacking and this study provides baseline information of its reproduction in a natural environment. We studied the reproductive ecology of S. bealei using X-ray, spool-and-line tracking, and direct observation. Six nesting females were successfully tracked and their nesting behaviors are documented in detail. Females produced a mean clutch size of 2.2 eggs (range 1-3). The hard-shelled eggs were ellipsoidal with a mean length of 45.50 mm, a mean width of 23.20 mm, and mean weight of 14.8 g. The relative clutch mass was 9.47{\%}, while the relative egg mass was 4.60{\%}. The mean incubation period was 94.7 days with a mean nest temperature of 25.08 ° C. Hatchlings had a mean weight of 9.7 g, carapace length of 40.1 mm, carapace width of 33.3 mm, carapace height of 17.4 mm, plastron length of 31.6 mm, and plastron width of 25.4 mm. The results of this study provide important information to inform conservation plans and ex-situ breeding for this endangered species.",
keywords = "Animal behavior, Beal's Eyed Turtle, Conservation, Ecology, Incubation, Nesting behavior, Turtle conservation",
author = "Liu Lin and Qingru Hu and Fong, {Jonathan Julio} and Jiangbo Yang and Zhongdong Chen and Feiyu Zhou and Jichao Wang and Fanrong Xiao and Haitao Shi",
year = "2018",
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Lin, L, Hu, Q, Fong, JJ, Yang, J, Chen, Z, Zhou, F, Wang, J, Xiao, F & Shi, H 2018, 'Reproductive ecology of the endangered Beal's-eyed turtle, Sacalia bealei', PeerJ, vol. 6, e4997. https://doi.org/10.7717/peerj.4997

Reproductive ecology of the endangered Beal's-eyed turtle, Sacalia bealei. / Lin, Liu; Hu, Qingru; Fong, Jonathan Julio; Yang, Jiangbo; Chen, Zhongdong; Zhou, Feiyu; Wang, Jichao; Xiao, Fanrong; Shi, Haitao.

In: PeerJ, Vol. 6, e4997, 14.06.2018.

Research output: Journal PublicationsJournal Article (refereed)

TY - JOUR

T1 - Reproductive ecology of the endangered Beal's-eyed turtle, Sacalia bealei

AU - Lin, Liu

AU - Hu, Qingru

AU - Fong, Jonathan Julio

AU - Yang, Jiangbo

AU - Chen, Zhongdong

AU - Zhou, Feiyu

AU - Wang, Jichao

AU - Xiao, Fanrong

AU - Shi, Haitao

PY - 2018/6/14

Y1 - 2018/6/14

N2 - The Beal's-eyed turtle (Sacalia bealei) is endemic to southeastern China and endangered due to poaching and habitat loss. Knowledge of S. bealei ecology is lacking and this study provides baseline information of its reproduction in a natural environment. We studied the reproductive ecology of S. bealei using X-ray, spool-and-line tracking, and direct observation. Six nesting females were successfully tracked and their nesting behaviors are documented in detail. Females produced a mean clutch size of 2.2 eggs (range 1-3). The hard-shelled eggs were ellipsoidal with a mean length of 45.50 mm, a mean width of 23.20 mm, and mean weight of 14.8 g. The relative clutch mass was 9.47%, while the relative egg mass was 4.60%. The mean incubation period was 94.7 days with a mean nest temperature of 25.08 ° C. Hatchlings had a mean weight of 9.7 g, carapace length of 40.1 mm, carapace width of 33.3 mm, carapace height of 17.4 mm, plastron length of 31.6 mm, and plastron width of 25.4 mm. The results of this study provide important information to inform conservation plans and ex-situ breeding for this endangered species.

AB - The Beal's-eyed turtle (Sacalia bealei) is endemic to southeastern China and endangered due to poaching and habitat loss. Knowledge of S. bealei ecology is lacking and this study provides baseline information of its reproduction in a natural environment. We studied the reproductive ecology of S. bealei using X-ray, spool-and-line tracking, and direct observation. Six nesting females were successfully tracked and their nesting behaviors are documented in detail. Females produced a mean clutch size of 2.2 eggs (range 1-3). The hard-shelled eggs were ellipsoidal with a mean length of 45.50 mm, a mean width of 23.20 mm, and mean weight of 14.8 g. The relative clutch mass was 9.47%, while the relative egg mass was 4.60%. The mean incubation period was 94.7 days with a mean nest temperature of 25.08 ° C. Hatchlings had a mean weight of 9.7 g, carapace length of 40.1 mm, carapace width of 33.3 mm, carapace height of 17.4 mm, plastron length of 31.6 mm, and plastron width of 25.4 mm. The results of this study provide important information to inform conservation plans and ex-situ breeding for this endangered species.

KW - Animal behavior

KW - Beal's Eyed Turtle

KW - Conservation

KW - Ecology

KW - Incubation

KW - Nesting behavior

KW - Turtle conservation

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AN - SCOPUS:85048594621

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