scholarly journals Hydrologic similarity to reference wetlands does not lead to similar plant communities in restored wetlands

2019 ◽  
Vol 27 (5) ◽  
pp. 1137-1144
Author(s):  
Jeremy P. Sueltenfuss ◽  
David J. Cooper

2013 ◽  
Vol 170 (2) ◽  
pp. 260-273 ◽  
Author(s):  
David J. Kurz ◽  
Nicholas A. McGinty ◽  
Sarah A. Stankavich ◽  
A. Justin Nowakowski ◽  
Gregory A. Smith


Wetlands ◽  
2005 ◽  
Vol 25 (1) ◽  
pp. 130-142 ◽  
Author(s):  
Collin K. Balcombe ◽  
James T. Anderson ◽  
Ronald H. Fortney ◽  
James S. Rentch ◽  
William N. Grafton ◽  
...  


2002 ◽  
Vol 80 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Chev H Kellogg ◽  
Scott D Bridgham

Little is known about the importance of initial colonization in the successional development of restored wetlands. We compared plant communities of two lightly planted restorations (water levels restored + planted and seeded), three hydrologic restorations (water levels restored), and two undrained sites. Measurements typically used in monitoring (richness, diversity, aboveground biomass) indicated that 2–3 years after restoration, restored wetlands showed only small differences from the plant community structure of undrained wetlands in the saturated zone. In contrast, analysis of vegetation based on species composition indicated differences in vegetation communities among all wetland types. Plant communities of planted restorations and reference sites were dominated by emergent species, while hydrologic restorations had a more variable plant community. These results indicate a small effect of initial planting and seeding at low densities and show that colonization is rapid during early succession of restored marshes. It was not clear whether either restoration method would eventually result in vegetation communities similar to reference sites. These results indicate that current monitoring periods of 3–5 years are insufficient to allow time for an accurate assessment of the successional development in each wetland.Key words: dispersal, germination, monitoring, plant biomass, plant community, wetland.









1994 ◽  
Vol 105 (5-6) ◽  
pp. 387-398
Author(s):  
M. M. Abd El-Ghani
Keyword(s):  


2019 ◽  
Author(s):  
Coline Deveautour ◽  
Sally Power ◽  
Kirk Barnett ◽  
Raul Ochoa-Hueso ◽  
Suzanne Donn ◽  
...  

Climate models project overall a reduction in rainfall amounts and shifts in the timing of rainfall events in mid-latitudes and sub-tropical dry regions, which threatens the productivity and diversity of grasslands. Arbuscular mycorrhizal fungi may help plants to cope with expected changes but may also be impacted by changing rainfall, either via the direct effects of low soil moisture on survival and function or indirectly via changes in the plant community. In an Australian mesic grassland (former pasture) system, we characterised plant and arbuscular mycorrhizal (AM) fungal communities every six months for nearly four years to two altered rainfall regimes: i) ambient, ii) rainfall reduced by 50% relative to ambient over the entire year and iii) total summer rainfall exclusion. Using Illumina sequencing, we assessed the response of AM fungal communities sampled from contrasting rainfall treatments and evaluated whether variation in AM fungal communities was associated with variation in plant community richness and composition. We found that rainfall reduction influenced the fungal communities, with the nature of the response depending on the type of manipulation, but that consistent results were only observed after more than two years of rainfall manipulation. We observed significant co-associations between plant and AM fungal communities on multiple dates. Predictive co-correspondence analyses indicated more support for the hypothesis that fungal community composition influenced plant community composition than vice versa. However, we found no evidence that altered rainfall regimes were leading to distinct co-associations between plants and AM fungi. Overall, our results provide evidence that grassland plant communities are intricately tied to variation in AM fungal communities. However, in this system, plant responses to climate change may not be directly related to impacts of altered rainfall regimes on AM fungal communities. Our study shows that AM fungal communities respond to changes in rainfall but that this effect was not immediate. The AM fungal community may influence the composition of the plant community. However, our results suggest that plant responses to altered rainfall regimes at our site may not be resulting via changes in the AM fungal communities.





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