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DOI	10.1007/s00027-024-01089-4
	The impact of drought duration on two Potamogeton species with different growth forms
	Daumal, Maya M.; Oosterhuis, Dian; Verhofstad, Michiel J. J. M.; Erkens, Roy H. J.; Peeters, Edwin T. H. M.
发表日期	2024
ISSN	1015-1621
EISSN	1420-9055
起始页码	86
结束页码	3
卷号	86 期号:3
英文摘要	When facing new climate extremes, aquatic plant communities may experience more frequent or increasing durations of water shortages. Aquatic macrophytes of permanently inundated habitats (true hydrophytes) may lack the physiological or morphological characteristics that protect terrestrial plants from drying out. Aquatic hydrophytes with floating or emergent leaves are expected to be more resilient to droughts than completely submerged plants, as they have morphological characteristics adapted to air-exposed conditions. Therefore, we expected the latter to survive longer periods of air exposure and perform better with increasing drought than a completely submerged growing species. Here, we conducted a microcosm experiment and exposed two Potamogeton species-the completely submerged growing Potamogeton perfoliatus and the areal leaf producing Potamogeton nodosus-to different drought conditions (1, 5, and 15 days). We aimed to detect how two species with different growth strategies cope with and respond to increasing air exposures with waterlogged sediment. Both species showed a resistance to 1-5 days of drought but showed high mortality after 15 days. They displayed significant differences in all measured morphological responses (shoot length, side shoot, and leaf counts), plant chemistry (carbon, nitrogen, and phosphate), and the produced biomass (shoot, root, leaves), and reacted significantly to increasing drought durations. Differences in their resistance were observed based on the mortality rate and morphological responses. To prevent long-term droughts and keep mortality low, we recommend to the water managers to identify areas of risk and increase water levels during dry periods.
英文关键词	Aquatic macrophytes; Climate change; Survival; Drought response; Plant morphology; Plant chemistry
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Limnology ; Marine & Freshwater Biology
WOS记录号	WOS:001236580600002
来源期刊	AQUATIC SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300633
作者单位	Maastricht University; Maastricht University; Wageningen University & Research
推荐引用方式 GB/T 7714	Daumal, Maya M.,Oosterhuis, Dian,Verhofstad, Michiel J. J. M.,et al. The impact of drought duration on two Potamogeton species with different growth forms[J],2024,86(3).
APA	Daumal, Maya M.,Oosterhuis, Dian,Verhofstad, Michiel J. J. M.,Erkens, Roy H. J.,&Peeters, Edwin T. H. M..(2024).The impact of drought duration on two Potamogeton species with different growth forms.AQUATIC SCIENCES,86(3).
MLA	Daumal, Maya M.,et al."The impact of drought duration on two Potamogeton species with different growth forms".AQUATIC SCIENCES 86.3(2024).