干旱区生态环境知识资源中心(Arid): Filling in the holes: The reproductive biology of the understudied Mahali mole-rat (Cryptomys hottentotus mahali)

Arid

DOI	10.1139/cjz-2020-0158
	Filling in the holes: The reproductive biology of the understudied Mahali mole-rat (Cryptomys hottentotus mahali)
	Hart, D. W.; Medger, K.; van Jaarsveld, B.; Bennett, N. C.
通讯作者	Hart, DW (corresponding author), Univ Pretoria, Dept Zool & Entomol, Private Bag X20, ZA-0028 Hatfield, South Africa.
来源期刊	CANADIAN JOURNAL OF ZOOLOGY
ISSN	0008-4301
EISSN	1480-3283
出版年	2021
卷号	99 期号:9 页码:801-811
英文摘要	African mole-rats have provided great insight into mammalian evolution of sociality and reproductive strategy. However, some species have not received attention, and these may provide further insights into these evolutionary questions. The cooperatively breeding Mahali mole-rat (Cryptomys hottentotus mahali (Roberts, 1913)) is one such species. Body mass, reproductive-tract morphometrics, gonad histology, and plasma reproductive hormone concentrations were studied for breeding and non-breeding males and females over 1 year. This study aimed to discern if this species exhibits a seasonal or aseasonal breeding pattern and whether there is a relaxation of reproductive suppression at any point in the year in non-breeding animals. The pattern of reproductive relaxation during the wetter months is similar to other African mole-rat species. Interestingly, births and pregnant breeding females were recorded throughout the year, thus indicating an aseasonal breeding strategy, despite inhabiting a region that experiences seasonal rainfall. However, there were periods of the year favouring increased reproduction to enable an increased likelihood of offspring survival. This suggests that the Mahali mole-rat may be an opportunistic breeder possibly brought about by the benefits of living in a cooperatively breeding group and potentially moving into more arid environments that were previously unexploited by the genus Cryptomys Gray, 1864.
英文关键词	reproduction opportunistic breeder aseasonal reproductive suppression Mahali mole-rat Cryptomys hottentotus mahali cooperative breeding
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000692030900007
WOS关键词	SOCIALLY INDUCED INFERTILITY ; PRETORIAE RODENTIA ; INCEST AVOIDANCE ; BREEDING-SEASON ; SUPPRESSION ; FAMILY ; BATHYERGIDAE ; DAMARENSIS ; EVOLUTION
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367975
作者单位	[Hart, D. W.; van Jaarsveld, B.] Univ Pretoria, Dept Zool & Entomol, Private Bag X20, ZA-0028 Hatfield, South Africa; [Medger, K.; Bennett, N. C.] Univ Pretoria, Mammal Res Inst, Dept Zool & Entomol, Private Bag X20, ZA-0028 Hatfield, South Africa
推荐引用方式 GB/T 7714	Hart, D. W.,Medger, K.,van Jaarsveld, B.,et al. Filling in the holes: The reproductive biology of the understudied Mahali mole-rat (Cryptomys hottentotus mahali)[J],2021,99(9):801-811.
APA	Hart, D. W.,Medger, K.,van Jaarsveld, B.,&Bennett, N. C..(2021).Filling in the holes: The reproductive biology of the understudied Mahali mole-rat (Cryptomys hottentotus mahali).CANADIAN JOURNAL OF ZOOLOGY,99(9),801-811.
MLA	Hart, D. W.,et al."Filling in the holes: The reproductive biology of the understudied Mahali mole-rat (Cryptomys hottentotus mahali)".CANADIAN JOURNAL OF ZOOLOGY 99.9(2021):801-811.