Fish-flamingo interactions in the Central Andes

Hurlbert, Stuart H.; Loayza, Washington; Moreno, Tomas

doi:10.1080/03680770.1983.11897754

Cited by 7 publications

(14 citation statements)

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“…Reproductive and/or survival rates of cladocerans are generally reduced at higher conductivities (Galat & Robinson 1983). A decrease in the relative abundance of cladocerans in microcrustacean zooplankton as salinity increases has been observed in many aquatic systems (Hurlbert et al 1986, Kingsford & Porter 1994, Moss 1994, Wollheim & Lovvorn 1995, Bolduc & Afton 2003. The lower species richness of Cladocera we CLADOCERANS IN ALICANTE (7) 79 observed in Reserva and Múrtulas was probably related to their high salinities.…”

Section: Discussionmentioning

confidence: 97%

“…Although differences in fish densities are also likely to influence the relative abundance of Cladocera (Hurlbert et al 1986, Jeppesen et al 1997, we have no data on fish densities for our study period. Blooms of cyanobacteria can also lead to declines in cladoceran populations (Jeppesen et al 1997), and such blooms occur at El Hondo (Barba et al 2004, E. Costas, pers.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Factors influencing cladoceran abundance and species richness in brackish lakes in Eastern Spain

Green

Fuentes

Moreno‐Ostos

et al. 2005

Ann. Limnol. - Int. J. Lim.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Factors influencing cladoceran abundance and species richness in brackish lakes in Eastern Spain

Green

Fuentes

Moreno‐Ostos

et al. 2005

Ann. Limnol. - Int. J. Lim.

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“…Saline lakes often lack fish because of salinity intolerance or winterkill from low dissolved oxygen (Hammer, 1986;Peterka, 1989). With minimal competition from aquatic vertebrate predators, a variety of birds are top consumers in these rather simple food webs (Hurlbert et al, 1986;Vareschi, 1987;Jehl, 1988). Because of specialized feeding modes and preferred prey, avian predators might be affected by shifts in stable state and invertebrate communities with changes in salinity.…”

Section: Introductionmentioning

confidence: 99%

Salinity effects on macroinvertebrate assemblages and waterbird food webs in shallow lakes of the Wyoming High Plains

Wollheim

Lovvorn

1995

Hydrobiologia

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We determined the biomass and community structure of macroinvertebrates (>500 pm) associated with macrophytes, sediments, and unvegetated open water in three oligosaline (0.8 to 8.0 mS cm-') and three mesosaline (8.0 to 30.0 mS cm-') lakes in the Wyoming High Plains, USA. Total biomass of epiphytic and benthic invertebrates did not change with salinity, but biomass of macroinvertebrate zooplankton in open water was significantly higher in mesosaline lakes. Community composition of invertebrates differed between the two salinity categories: large grazerldetritivores (gastropods and amphipods) were dominant in oligosaline lakes, whereas small planktivores and their insect predators were more prevalent in mesosaline lakes. Both direct physiological effects of salinity, as well as a shift in the form of primary production from macrophytes to phytoplankton, probably explain these changes in community composition. Salinity effects on invertebrate communities appear to be less important to top avian consumers than are costs of osmoregulation.

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“…Fish stocking in fishless lakes has provided some of the best-known examples of trophic cascades and regime shifts to be found in the ecological literature. Effects involve changes in species composition and their relative abundance and behaviour as well as in nutrient cycles and primary production (Hurlbert et al, 1986;Carpenter and Kitchell, 1993;Matthews, 1998;Scheffer, 1998;Schindler et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Fishless shallow lakes of Southern Patagonia as habitat for waterbirds at the onset of trout aquaculture

Lancelotti

Pozzi

Yorio

et al. 2008

Aquatic Conservation

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ABSTRACT1. The Strobel Meseta, a basaltic plateau of Patagonia (Santa Cruz Province, Argentina), holds thousands of shallow fishless lakes that are prime habitat for many species of waterbirds, including some considered 'near threatened'. In recent years, several lakes have been stocked with trout which has created uncertainty about the potential effects on the recipient ecosystem.2. Limnological and topographical analyses were performed in a group of 32 lakes of the Strobel Meseta in order to characterize and classify individual lakes of the meseta based on their limnological and topographic features, analyze the association between lake type and use by aquatic birds in general and by the endemic hooded grebe (Podiceps gallardoi) in particular, and evaluate the overlap between trout aquaculture and critical habitat for waterbirds.3. The lakes were classified by multivariate analyses into four characteristic types: turbid, high conductivity lakes (T), small vegetated lakes (SV) and larger lakes which were subdivided into either vegetated (LV) or unvegetated (LU). In general, macrophyte cover was the main classificatory variable, whereas conductivity, pH, surface, and depth contributed moderately. Large vegetated lakes were generally found to be important for waterbirds and provided critical habitat for the hooded grebe, whereas trout farmers largely favoured large unvegetated lakes. However, since some large vegetated lakes have already been stocked, there is some level of geographical overlap between waterbird habitat and trout farming.4. The existence of some level of spatial segregation between production and critical waterbird habitat affords opportunities for designing a spatially-based management system for trout aquaculture.

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Fish-flamingo interactions in the Central Andes

Cited by 7 publications

References 0 publications

Factors influencing cladoceran abundance and species richness in brackish lakes in Eastern Spain

Factors influencing cladoceran abundance and species richness in brackish lakes in Eastern Spain

Salinity effects on macroinvertebrate assemblages and waterbird food webs in shallow lakes of the Wyoming High Plains

Fishless shallow lakes of Southern Patagonia as habitat for waterbirds at the onset of trout aquaculture

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