The relative importance of biotic and abiotic vectors in nutrient transport

  title={The relative importance of biotic and abiotic vectors in nutrient transport},
  author={Keith L. Bildstein and Elizabeth R. Blood and Peter C. Frederick},
The mass of nutrients (nitrogen, phosphorus, potassium, and calcium) imported during 1984 and 1985 to the North. Inlet Estuary, Georgetown County, South Carolina, by precipitation and runoff was compared with that imported by a colonial-nesting wading bird, the white ibis (Eudocimus albus). From late March through late June of both years, breeding ibises imported nutrients to the North Inlet Estuary study site from freshwater bottomland forest swamps, where they fed on crayfishes (Procambaridae… 

Figures and Tables from this paper

Impact of migratory snow geese on nitrogen and phosphorus dynamics in a freshwater reservoir

Impacts of nutrient loading, particularly of nitrogen and phosphorus, from greater snow geese on a reservoir in south-eastern Pennsylvania, U.S.A. persisted long after the geese had left, but was relatively localised.

The Role of Migratory Waterfowl as Nutrient Vectors in a Managed Wetland

Dense aggregations of waterfowl, often caused by loss of native wetlands and increased waterfowl numbers, can result in the destruction of wetland vegetation and agricultural crops, increase the risk

Nutrient transport within and between habitats through seed dispersal processes by woolly monkeys in north‐western Amazonia

The results suggest that via seed dispersal processes, woolly monkey populations can contribute to nutrient movement in tropical forests, and may act as important nutrient input vectors in terra firme forests.

Seasonal Variability of Waterbird Assemblages in Relationship to Habitat Characteristics in a Pampas Wetland

Abstract. The Argentinean Pampas is an ecologically disturbed region where patchy wetlands form complex habitats with surrounding agricultural areas. Numerous bird species concentrate in these

Nutrient cycling at the landscape scale: The role of diel foraging migrations by geese at the Bosque del Apache National Wildlife Refuge, New Mexico

Wildlife refuges are sites of dense aggregations of wintering waterfowl. Refuge managers are concerned about local water‐quality effects and the amount of birdborne nutrient load that might cause

High arctic ponds receiving biotransported nutrients from a nearby seabird colony are also subject to potentially toxic loadings of arsenic, cadmium, and zinc

Although nutrient subsidies from fulmars create an Arctic oasis at Cape Vera, the same biological transport pathway puts at risk some of these species by creating sedimentary As, Cd, and Zn concentrations at this remote site similar to those usually observed only near industrialized locations.

Nutrient Recycling by Eared Grebes in the Great Salt Lake

Eared Grebes may speed up nutrient recycling, making nutrients available to primary producers sooner, and the contribution of waterbirds to nutrient cycling is important for the entire N and P cycles within the GSL.

Role of fish communities in particulate organic matter fluxes between salt marshes and coastal marine waters in the Mont Saint-Michel bay.

Among the 90 fishspecies censused in the Mont Saint-Michel Bay (France), 23 colonise and forage in the salt marshes during flood. Therefore, this environment may play an important trophic and nursery

Role of fish communities in particulate organic matter fluxes between salt marshes and coastal marine waters in the Mont Saint-Michel Bay

Among the 90 fishspecies censused in the Mont Saint-Michel Bay (France), 23 colonise and forage in the salt marshes during flood. Therefore, this environment may play an important trophic and nursery




It is suggested that declines in both the numbers of nesting ibises and in reproductive success at the two sites resulted from the relative unavailability of crayfishes during dry periods.

Experimental evidence for nutrient limitation of seagrass growth in a tropical estuary with restricted circulation

Tissue nutrient content and nitrogen fixation assays suggest that phosphorus availability limits seagrass growth in unenriched conditions, but that nitrogen becomes limiting with the addition of bird excrement.

Assessment of the Importance of Nutrient Recycling by Seabirds in the St. Lawrence Estuary

Feeding and excretion rates of the herring, great black-backed, and ring-billed gulls, and common eider were measured in captive individuals and the concentration of soluble nutrients in their excreta was established, finding quantities found to be negligible.

Chemical Inputs by a Colony of Franklin's Gulls Nesting in Cattails

Large increases occurred in nitrogen and phosphorus concentrations of water in the immediate vicinity of the gull colony; peak concentrations were concomitant with the peak of gull nest-building and feeding activities (mid-May and mid-July).

Interactions of Nutrients, Plant Growth and Herbivory in a Mangrove Ecosystem

This observation and the demonstration that the mangrove skipper Phocides pigmalion attains a higher growth efficiency on high nutrient leaves are both consistent with the hypothesis that increased nutritive value of vegetation is responsible for the 4x greater losses to herbivores in the high nutrient area.

The outwelling hypothesis and North Inlet, South Carolina

A comprehensive explanation of outwelling in North Inlet is proposed which describes this system as an ebb-dominated, bar-built estuary with good flow connection to the sea and with some freshwater input.

Nutrient and particulate fluxes in a salt marsh ecosystem: Tidal exchanges and inputs by precipitation and groundwater 1

Waterborne nutrients enter Great Sippewissctt Marsh through groundwater, rain, and tidal flooding. The ebb of tidal water removes nutrients. During summer, uptake by marsh biota leads to net import

Composition, structure and productivity of neritic plankton communities near the bird colonies of the northern shores of Novaya Zemlya

Favourable hydrological factors in conjunction with the fertilization of water with bird guano assure the stability of this neritic community with its multiplicity of interrelationships between producers and consumers of the first and second trophic levels, existing under the rigorous conditions of an ice-covered region.

Effects of Diking of a Venezuelan Savanna on Avian Habitat, Species Diversity, Energy Flow, and Mineral Flow Through Wading Birds

Southwestern Venezuelan savannas (llanos) flood from July through September because of heavy rainfall, poor drainage, and overflowing of rivers. These areas dry out from October through June. Since

The Role of Birds in Nutrient Cycling in a Northern Hardwoods Ecosystem

Birds collected from the forested watershed—ecosystems of the Hubbard Brook Experimental Forest in central New Hampshire were analyzed and their impact on the turnover and distribution of nutrients within ecosystems is probably small but requires further study.