Interactions between coot (Fulica atra) and submerged macrophytes: the role of birds in the restoration process

@article{Perrow2004InteractionsBC,
  title={Interactions between coot (Fulica atra) and submerged macrophytes: the role of birds in the restoration process},
  author={Martin R. Perrow and Jan H. Schutten and J. R. Howes and Tim Holzer and F. Jane Madgwick and Adrian J. D. Jowitt},
  journal={Hydrobiologia},
  year={2004},
  volume={342-343},
  pages={241-255}
}
Grazing by herbivorous birds is often cited as an important factorin suppressing macrophyte development in shallow lakes undergoingrestoration, thus delaying the attainment of the stable clear waterstate. Development and succession of macrophyte communities andsize, diet and grazing pressure of coot (Fulica atra)populations upon macrophytes, were monitored over the seasonalcycle at ten shallow lakes of varying nutrient status, in theNorfolk Broads in eastern England. In spring, territorial… Expand

Figures and Tables from this paper

Submerged macrophytes as refuges for grazing Cladocera against fish [-3pt]predation: observations on seasonal changes in relation to macrophyte cover and predation pressure
The provision of a refuge from fish predation for large-bodiedCladocera among stands of submerged macrophytes is thought tobe animportant stabilising mechanism against nutrient-inducedphytoplanktonExpand
Recovery of Potamogeton pectinatus L. stands in a shallow eutrophic lake under extreme grazing pressure
In shallow lakes, submerged macrophytes contribute to the stabilization of the clear water state. If lost, a number of mechanisms prevent re-colonization. Lake Müggelsee (730 ha) lost its submergedExpand
Effects of waterfowl, large fish and periphyton on the spring growth of Potamogeton pectinatus L. in Lake Mogan, Turkey
TLDR
It is suggested that even if waterfowl and large fish are in high densities, their effect on fennel pondweed spring growth in lakes with abundant submerged vegetation, such as Lake Mogan, is low. Expand
Relationships between the biomass of waterfowl and submerged macrophytes in a South African estuarine lake system
The Wilderness Lakes system, comprising three estuarine lakes (Eilandvlei, Langvlei and Rondevlei), supports a diverse waterbird community, which includes 12 duck species and the abundant Red-knobbedExpand
Waterbird herbivory on a newly created wetland complex: potential implications for site management and habitat creation
Estimations of waterbird herbivory at a newly created wetland, indicate that overwintering waterbirds have the potential to remove a large proportion of the above-ground macrophyte standing crop inExpand
Turbidity, Waterfowl Herbivory, and Propagule Banks Shape Submerged Aquatic Vegetation in Ponds
TLDR
It is concluded that phytoplankton-caused turbidity and high waterfowl biomass densities greatly restrict submerged macrophyte abundance. Expand
Waterbird impacts on widgeongrass Ruppia maritima in a Mediterranean wetland: comparing bird groups and seasonal effects
TLDR
The findings refute previous suggestions that major effects of waterbirds are limited to temperate regions and to periods of early growth or when major concentrations of migratory wildfowl are formed in autumn. Expand
Changes in aquatic macrophyte communities in Loch Leven: evidence of recovery from eutrophication?
This article assesses changes in the macrophyte community of Loch Leven over a period of 100 years. Evidence is presented that shows that these changes are associated with eutrophication and withExpand
Seasonal Variation in Populations of Eurasian Coot Fulica atra: Relationships with Environmental Variables in Mediterranean Wetlands
Abstract Mediterranean wetlands represent a broad variety of natural resources with a huge role in the maintenance of biological diversity. Waterbirds are significant components of this diversity.Expand
Mowing Submerged Macrophytes in Shallow Lakes with Alternative Stable States: Battling the Good Guys?
TLDR
The model indicates that mowing can temporarily reduce nuisance caused by submerged plants in the first weeks after cutting, particularly when external nutrient loading is fairly low, and shows that the critical nutrient loading, where the lake shifts to the turbid phytoplankton-dominated state, can be slightly increased. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 59 REFERENCES
The impact of grazing waterfowl on submerged macrophytes: In situ experiments in a shallow eutrophic lake
TLDR
It is predicted that by grazing on submerged Macrophytes, waterfowl may have a negative impact on lake water quality, particularly in lakes that are in the recovery phase and in which macrophytes are about to re-colonise following a reduction in external nutrient loading. Expand
Trophic web structure in a shallow eutrophic lake during a dominance shift from phytoplankton to submerged macrophytes
In Lake Krankesjön, southern Sweden, sago pondweed (Potamogeton pectinatus L.) and a stonewort (Chara tomentosa L.) expanded spatially during the second half of the 1980's after more than a decade ofExpand
Trophic interactions in a shallow lake following a reduction in nutrient loading: a long-term study
After the diversion of a nutrient-rich inflow, the eutrophic lake, Alderfen Broad, initially showed reduced total phosphorus concentrations and phytoplankton populations, clear water and theExpand
Colonization of submerged macrophytes in shallow fish manipulated Lake Væng: impact of sediment composition and waterfowl grazing
TLDR
It was concluded that macrophytes were able to grow on all substrates present in Lake Vaeng, but waterfowl grazing probably controlled and delayed macrophyte colonization. Expand
Influence of macroinvertebrates and macrophytes on waterfowl utilization of wetlands in the Prairie Pothole Region of northwestern Wisconsin
Waterfowl and limnological data were monitored on Waterfowl Production Area (WPA) wetlands in northwestern Wisconsin over a 6-yr period (1983–88) to determine the impact of macroinvertebrates andExpand
Submerged macrophytes in the recently freshened lake system Volkerak-Zoom (The Netherlands), 1987–1991
TLDR
Characteristics (height, flowering and fruiting) of the main species (P. pusillus, P. pectinatus, Z. palustris, R. maritima) were closely related to water temperature and secchi depth, which ensured a clear and stable freshwater ecosystem, despite high nutrient loading. Expand
The loss of submerged plants with eutrophication II. Relationships between fish and zooplankton in a set of experimental ponds, and conclusions
TLDR
A new hypothesis is put forward to account for the switch from aquatic plant to phytoplankton dominance in eutrophicated shallow lakes and suggests that each state is buffered against increased loading by mechanisms involving plant and algal physiology and zooplankon grazer populations. Expand
Herbivory on freshwater macrophytes
TLDR
It is demonstrated that macrophyte biomass, productivity, and species composition is often influenced by a variety of vertebrate and invertebrate grazers, and a correlational analysis of the grazing hierarchy of crayfish and published hierarchies of other grazers suggest that herbivores have apparently similar selectivities among macrophytes. Expand
Eutrophication and black swan (Cygnus atratus Latham) populations: tests of two simple relationships
In an earlier study, regression models were developed which related black swan populations to macrophyte biomass and to phytoplankton productivity in Tomahawk Lagoon No 2, a small South Island, NewExpand
Food And Foraging Of Coot Fulica Atra On Fish Ponds During
TLDR
The abundance of Coot Fulica atra on small fish ponds in Belgium increased from August to a maximum in October, after which a sharp decrease was recorded, mainly related to foraging conditions. Expand
...
1
2
3
4
5
...