Academic Journal
Forbs from seasonal managed wetlands boost plankton production more than emergent graminoids by supplying novel labile detritus
| العنوان: | Forbs from seasonal managed wetlands boost plankton production more than emergent graminoids by supplying novel labile detritus |
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| المؤلفون: | Phillips, Kyle A., Tung, Alice M., McConnell, Rachel M., O’Rear, Teejay A., Rejmánková, Eliška, Lawler, Sharon P., Durand, John R. |
| المساهمون: | Department of Water Resources |
| المصدر: | Freshwater Biology ; volume 69, issue 11, page 1686-1701 ; ISSN 0046-5070 1365-2427 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2024 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Opportunities to enhance ecosystem functions exist in human‐dominated working landscapes, but understanding of key drivers is often lacking in these novel environments. In Suisun Marsh, California, USA, impounded managed wetlands designed to promote waterfowl incidentally support higher plankton densities—a key resource for imperilled pelagic fishes—than adjacent tidal habitats. Managed wetland operations could produce plankton at critical periods for fish and the aquatic food‐web more broadly, but drivers of plankton production in managed wetlands are poorly understood. We proposed that decaying vegetation resulting from controlled flooding in managed wetlands is important for stimulating plankton blooms, but that the effect varies by plant species and functional type. We conducted a mesocosm experiment to test the effects of different inundated plants on plankton production, including three forb species, three emergent graminoid species and a control treatment without added plant material. Forbs promoted larger phytoplankton blooms and higher zooplankton production—by an order of magnitude—than both emergent graminoids and the control treatment. Emergent graminoids supported larger phytoplankton blooms, but not higher zooplankton production, than the control treatment. Phytoplankton blooms exhibited pulse dynamics in all treatments, with densities increasing initially and crashing by the end of the experiment. Phytoplankton blooms in forb and emergent treatments lasted similar durations, counter to the expectation that emergent graminoids would support diminished production over a relatively prolonged period. Among zooplankton taxa, Daphnia magna and rotifers were strongly associated with all three forbs species while the nonnative cyclopoid copepod Limnothoina tetraspina were associated with cattails ( Typha domingensis ) and the control. Forbs temporarily depleted dissolved oxygen concentrations during the first week of the experiment, suggesting a tradeoff by which decaying forbs boost plankton ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1111/fwb.14336 |
| الاتاحة: | http://dx.doi.org/10.1111/fwb.14336 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fwb.14336 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.EA0152E3 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1111/fwb.14336 |
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