Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15657 |
Cross-generational response of a tropical sea urchin to global change and a selection event in a 43-month mesocosm study | |
Sven Uthicke; Frances Patel; Chelsea Petrik; Sue-Ann Watson; Sam E. Karelitz; Miles D. Lamare | |
2021-05-28 | |
发表期刊 | Global Change Biology |
出版年 | 2021 |
英文摘要 | Long-term experimental investigations of transgenerational plasticity (TGP) and transgenerational acclimatization to global change are sparse in marine invertebrates. Here, we test the effect of ocean warming and acidification over a 25-month period of Echinometra sp. A sea urchins whose parents were acclimatized at ambient or one of two near-future (projected mid and end of the 21st century) climate scenarios for 18 months. Several parameters linked to performance exhibited strong effects of future ocean conditions at 9 months of age. The Ambient-Ambient group (A-A, both F0 and F1 at ambient conditions) was significantly larger (21%) and faster in righting response (31%) compared to other groups. A second set of contrasts revealed near-future scenarios caused significant negative parental carryover effects. Respiration at 9 months was depressed by 59% when parents were from near-future climate conditions, and righting response was slowed by 28%. At 10 months, a selective pathogenic mortality event led to significantly higher survival rates of A-A urchins. Differences in size and respiration measured prior to the mortality were absent after the event, while a negative parental effect on righting (29% reduction) remained. The capacity to spawn at the end of the experiment was higher in individuals with ambient parents (50%) compared to other groups (21%) suggesting persistent parental effects. Obtaining different results at different points in time illustrates the importance of longer term and multigeneration studies to investigate effects of climate change. Given some animals in all groups survived the pathogenic event and that effects on physiology (but not behavior) among groups were eliminated after the mortality, we suggest that similar events could constitute selective sweeps, allowing genetic adaptation. However, given the observed negative parental effects and reduced potential for population replenishment, it remains to be determined if selection would be sufficiently rapid to rescue this species from climate change effects. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/328693 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Sven Uthicke,Frances Patel,Chelsea Petrik,et al. Cross-generational response of a tropical sea urchin to global change and a selection event in a 43-month mesocosm study[J]. Global Change Biology,2021. |
APA | Sven Uthicke,Frances Patel,Chelsea Petrik,Sue-Ann Watson,Sam E. Karelitz,&Miles D. Lamare.(2021).Cross-generational response of a tropical sea urchin to global change and a selection event in a 43-month mesocosm study.Global Change Biology. |
MLA | Sven Uthicke,et al."Cross-generational response of a tropical sea urchin to global change and a selection event in a 43-month mesocosm study".Global Change Biology (2021). |
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