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To lose is to win: long-term co-occurrence of two asexual populations realized by a dormant strategy of the inferior competitor

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DataONE2024-09-13 更新2025-08-23 收录
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Asexual organisms are ubiquitous. While they are the same single species with the same ecological requirements, multiple asexual genotypes within a species are often found in a single habitat. Niche partitioning in time and space among genotypes has been proposed to explain this phenomenon. However, it is not clear whether these different genotypes co-occur in the long term. Therefore, we examined the population dynamics of two asexual Daphnia cf. pulex genotypes (JPN1 and JPN2) over nine years in a small mountain lake. These two genotypes consistently occurred in the same seasons and layers, suggesting that niche partitioning cannot explain their long-term co-occurrence. The abundance of JPN1 was typically higher in most years. However, the abundance of dormant eggs in lake sediments was at the same level between the genotypes. The laboratory experiment showed that JPN1 excluded JPN2. However, many JPN2 individuals produced the dormant eggs before JPN1 competitively excluded them from ..., , , # Data for: To lose is to win: long-term co-occurrence of two asexual populations realized by a dormant strategy of the inferior competitor Comments and requests should be addressed to Jotaro Urabe: [urabe@tohoku.ac.jp](mailto:urabe@tohoku.ac.jp) Suggested dataset citation: Maruoka et al. (2024). Data for: To lose is to win: long-term co-appearance of two asexual populations realized by a dormant strategy of the inferior competitor. Data DOI: [https://doi.org/10.5061/dryad.9p8cz8wms](https://doi.org/10.5061/dryad.9p8cz8wms) ### File Structure The \"Data_tables\" folder contains nine data sets. #### Data table 1: Data of the individual number of *Daphnia* cf. *pulex* JPN1 and JPN2 genotypes in the sample and the individual abundance of these genotypes in Lake Hataya Ohnuma as shown in Fig 1 of the paper above. * M: collection month * J1, J2: individual number in the sample on the day of collection * N: total individual number of JPN1 and JPN2 in the sample * AJ1, AJ2: indivi...

无性繁殖生物分布广泛。尽管同属一个物种且具有相同的生态需求,单一栖息地内往往存在同一物种的多种无性繁殖基因型(asexual genotypes)。有研究提出,基因型间在时间与空间上的生态位分化(niche partitioning)可解释这一现象。然而,目前尚不清楚这些不同基因型能否长期共存。为此,我们对一座小型山地湖泊中两种无性繁殖的蚤状溞近似种(Daphnia cf. pulex)基因型JPN1与JPN2开展了为期9年的种群动态监测(population dynamics)。 这两种基因型始终出现在相同的季节与水层中,表明生态位分化无法解释它们的长期共存现象。多数年份中JPN1的丰度通常更高,但湖泊沉积物中的休眠卵(dormant eggs)丰度在两种基因型间并无显著差异。实验室实验显示JPN1会竞争性排除(competitively excluded)JPN2,然而许多JPN2个体在被JPN1竞争性排除出…… # 关联数据集:败亦有道:劣势竞争者通过休眠策略实现两种无性种群的长期共存 若有意见与请求,请联系Jotaro Urabe:[urabe@tohoku.ac.jp](mailto:urabe@tohoku.ac.jp) 建议数据集引用格式:Maruoka等(2024)。关联数据集:败亦有道:劣势竞争者通过休眠策略实现两种无性种群的长期共存。数据DOI:[https://doi.org/10.5061/dryad.9p8cz8wms](https://doi.org/10.5061/dryad.9p8cz8wms) ### 文件结构 "数据表格(Data_tables)"文件夹包含9组数据集。 #### 数据表1: 样本中的蚤状溞近似种(Daphnia cf. pulex)JPN1与JPN2基因型的个体数,以及该两种基因型在羽前大沼湖(Lake Hataya Ohnuma)中的个体丰度,对应本文图1。 * M:采样月份 * J1、J2:采样当日样本中的个体数 * N:样本中JPN1与JPN2的总个体数 * AJ1、AJ2:个体……

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2025-08-05
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