Variations in the reproductive strategies of three populations of Phrynocephalus helioscopus in China
文献类型：期刊论文
| ; | |
| 作者 | Liang, Tao2; Zhou, Lu1,2; He, Wenfeng2; Xiao, Lirong2; Shi, Lei2 |
| 刊名 | PEERJ
 ; PEERJ
|
| 出版日期 | 2018-10-24 ; 2018-10-24 |
| 卷号 | 6页码:15 |
| 关键词 | Phrynocephalus helioscopus Phrynocephalus helioscopus Optimal egg size Optimal egg size Morphological constraint hypothesis Morphological constraint hypothesis Egg size-number trade-off Egg size-number trade-off Life history Life history Reproduction Reproduction |
| ISSN号 | 2167-8359 ; 2167-8359 |
| DOI | 10.7717/peerj.5705 ; 10.7717/peerj.5705 |
| 英文摘要 | Background. Egg size and clutch size are key life history traits. During the breeding period, it is possible for females to increase their reproductive output either by increasing the number of eggs if the optimal egg size (OES) is maintained, or by increasing the allocation of energy to each egg. However, the strategies adopted are often influenced by animals' morphology and environment. Methods. Here, we examined variation in female morphological and reproductive traits, tested for trade-offs between egg size and clutch size, and evaluated the relationship between egg size and female morphology in three populations of Phrynocephalus helioscopus. Results. Female body size, egg size, and clutch size were larger in the Yi Ning (YN) and Fu Yun (FY) populations than in the Bei Tun (BT) population (the FY and YN populations laid more, and rounder eggs). Egg size was independent of female body size in two populations (BT and FY), even though both populations had an egg-size/clutch size trade-off. In the YN population, egg size and clutch size were independent, but egg size was correlated with female body size, consistent with the hypothesis of morphological constraint. Conclusions. Our study found geographical variation in body size and reproductive strategies of P. helioscopus. Egg size was correlated with morphology in the larger-bodied females of the YN population, but not in the smaller-bodied females of the BT population, illustrating that constraints on female body size and egg size are not consistent between populations.; Background. Egg size and clutch size are key life history traits. During the breeding period, it is possible for females to increase their reproductive output either by increasing the number of eggs if the optimal egg size (OES) is maintained, or by increasing the allocation of energy to each egg. However, the strategies adopted are often influenced by animals' morphology and environment. Methods. Here, we examined variation in female morphological and reproductive traits, tested for trade-offs between egg size and clutch size, and evaluated the relationship between egg size and female morphology in three populations of Phrynocephalus helioscopus. Results. Female body size, egg size, and clutch size were larger in the Yi Ning (YN) and Fu Yun (FY) populations than in the Bei Tun (BT) population (the FY and YN populations laid more, and rounder eggs). Egg size was independent of female body size in two populations (BT and FY), even though both populations had an egg-size/clutch size trade-off. In the YN population, egg size and clutch size were independent, but egg size was correlated with female body size, consistent with the hypothesis of morphological constraint. Conclusions. Our study found geographical variation in body size and reproductive strategies of P. helioscopus. Egg size was correlated with morphology in the larger-bodied females of the YN population, but not in the smaller-bodied females of the BT population, illustrating that constraints on female body size and egg size are not consistent between populations. |
| 资助项目 | National Natural Science Foundation of China[31660613] ; National Natural Science Foundation of China[31660613] |
| WOS研究方向 | Science & Technology - Other Topics ; Science & Technology - Other Topics |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000448174400001 ; WOS:000448174400001 |
| 出版者 | PEERJ INC ; PEERJ INC |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/3436]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Shi, Lei |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China 2.Xinjiang Agr Univ, Coll Anim Sci, Urumqi, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Tao,Zhou, Lu,He, Wenfeng,et al. Variations in the reproductive strategies of three populations of Phrynocephalus helioscopus in China, Variations in the reproductive strategies of three populations of Phrynocephalus helioscopus in China[J]. PEERJ, PEERJ,2018, 2018,6, 6:15, 15. |
| APA | Liang, Tao,Zhou, Lu,He, Wenfeng,Xiao, Lirong,&Shi, Lei.(2018).Variations in the reproductive strategies of three populations of Phrynocephalus helioscopus in China.PEERJ,6,15. |
| MLA | Liang, Tao,et al."Variations in the reproductive strategies of three populations of Phrynocephalus helioscopus in China".PEERJ 6(2018):15. |
入库方式： OAI收割
来源：武汉植物园
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