Submerged macrophytes as refuges for grazing Cladocera against fish predation: observations on seasonal changes in relation to macrophyte cover and predation pressure

Stansfield, Julia; Perrow, Martin R.; Tench, Louise D.; Jowitt, Adrian J. D.; Taylor, Ayesha A. L.

doi:10.1007/978-94-011-5648-6_25

Cited by 98 publications

(106 citation statements)

References 52 publications

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“…On the contrary, littoral-associated piscivores that frequent vegetated areas, such as pike, may instead force planktivorous fishes to stay in the open water, thus enhancing littoral refuge for zooplankton (Jacobsen and Perrow 1998). Stansfield et al (1997) also point out that macrophytes inhabited by fish can still provide a refuge for large-bodied cladocerans if fish do not feed while hiding. Invertebrate abundance also often increases with increasing macrophyte density (Kornijów and Kairesalo 1994), and refuge may be maintained if fishes choose alternative food sources (Diehl 1992).…”

Section: Discussionmentioning

confidence: 99%

“…However, this predator-avoidance strategy of diel vertical migration is likely less advantageous in shallow lakes, where light may penetrate to the lake bottom and where thermal stratification may not exist. In these systems, Daphnia sometimes use diel horizontal migration (DHM) to seek daytime refuge from predation among structure in littoral zones (Timms and Moss 1984;Lauridsen and Buenk 1996;Stansfield et al 1997;Lauridsen et al 1998;Moss et al 1998).…”

mentioning

confidence: 99%

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Littoral zone structures as Daphnia refugia against fish predators

Burks

Jeppesen²,

Lodge

2001

Limnology & Oceanography

144

118

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The assumption that macrophytes can provide zooplankton a daytime refuge against fish predation is central to the diel horizontal migration hypothesis. However, previous observations and experiments have shown that largebodied zooplankton avoid macrophytes. To directly test these contrasting roles of macrophytes, we measured the reaction of Daphnia pulex to macrophytes (Elodea canadensis or plastic) in the presence and absence of chemical cues from two commonly occurring European fishes, roach (Rutilus rutilus) and perch (Perca fluvialitis). In the same series of laboratory experiments, we then tested the ability of different densities of E. canadensis and plastic macrophytes to reduce predation by roach or perch. In the absence of fish, only 27% of daphnids occurred in the macrophytes. However, 70-80% of daphnids occurred in the macrophytes when either roach or perch occurred. In addition, significantly more daphnids occurred in plastic versus real macrophytes, indicating that some chemically mediated avoidance of real macrophytes by Daphnia occurred. In the presence of fish chemical cues from either roach or perch, the differences between real and plastic macrophytes quickly disappeared as daphnids moved into macrophytes. However, this behavior decreased mortality only from roach predation, because perch spent significantly more time than roach foraging among macrophytes. Thus, although daphnids sought macrophyte refuge in the presence of both fishes, the effectiveness of the refuge depended on macrophyte density and predator identity. These results support the idea that macrophytes can increase survival of Daphnia populations in shallow lakes, depending on the fish species present.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Littoral zone structures as Daphnia refugia against fish predators

Burks

Jeppesen²,

Lodge

2001

Limnology & Oceanography

144

118

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“…However, no significant effects of the presence of fish on macroinvertebrate diversity or community composition were recorded among the urban ponds in this study. This may reflect the low to moderate fish stocking densities and also the protection provided by emergent and submerged macrophyte beds from predation (Diehl, 1992;Biggs et al, 1994;Stansfield et al, 1997).…”

Section: Angustipennis Limnephilus Lunatus Limnephilus Rhombicus Bmentioning

confidence: 99%

Ecological Drivers of Cladoceran Diversity in the Central European City (Łódź, Poland): Effects of Urbanisation and Size of the Waterbody

Pawlikiewicz¹,

Jurasz

2017

Annales Zoologici Fennici

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Ponds are common and abundant features in nearly all landscapes typical of European lowland landscapes yet research on freshwater biodiversity has traditionally focussed on larger waterbodies such as lakes and rivers. This has led to an increased need to understand and quantify the biodiversity associated with pond habitats to better inform the active conservation and management of these small waterbodies. This thesis examines the aquatic macroinvertebrate biodiversity (alpha, beta and gamma) and conservation value of 95 ponds in Leicestershire, UK, across a variety of urban and rural landscape types and at a range of spatial scales. In addition, the relative importance of local (physicochemical and biological) and spatial (connectivity) variables in structuring macroinvertebrate communities within ponds is investigated. At a regional scale, the greatest macroinvertebrate biodiversity and conservation value was recorded within meadow ponds compared to urban, agricultural and forest ponds. Spatially, ponds were highly physically and biologically heterogeneous. Temporally (seasonally), invertebrate communities were most dissimilar in meadow and agricultural ponds but assemblages were similar in urban and forest ponds. In urban landscapes, park ponds supported a greater diversity of invertebrates than 'other' urban or garden ponds and typically had a greater conservation value. Garden ponds were the most taxon poor of those investigated. Perennial floodplain meadow ponds supported a greater biodiversity of invertebrates compared to ephemeral meadow ponds although conservation value was similar. Despite regular inundation from the River Soar, ephemeral ponds supported distinct communities compared to perennial meadow ponds. Aquatic macrophytes supported a higher diversity of taxa than other pond mesohabitats across all landscapes studied. Physicochemical factors were identified to be the dominant influence on macroinvertebrate assemblages although, a combination of local and spatial factors best explained the variation in community composition at a regional scale and for meadow ponds. Spatial factors were not identified to significantly influence urban pond communities. This study highlights the ecological importance and conservation value of ponds in rural and anthropogenically disturbed landscapes. Recognition of the significant contribution of ponds to freshwater biodiversity at regional and landscape scales is important for future conservation of pond habitats and will help focus and direct conservation strategies to where they are needed most.iv

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“…It is a typical littoral, shallow, phytophilous species, inhabiting overgrown vegetated littoral lakes and reservoirs, and also temporary reservoirs in which significant differences of temperatures, even dayly, occur (Bertilsson et al, 1995;Hann and Zrum, 1997;Stansfield et al, 1997). From our data, along the littoral of the Rybinsk reservoir, in spring, S. vetulus develops at temperatures above 14-16 • C, and the peak of abundance is during the summer months with temperatures reaching 20-25 • C. According to our data, Bosmina longirostris (Müller, 1785) is the first Cladocera to increase in abundance in spring, in the littoral of the Rybinsk reservoir, when water warms up to 6−8 • C (personal observation).…”

Section: > Simocephalus Vetulusmentioning

confidence: 99%

Effects of constant and stepwise changes in temperature on the species abundance dynamics of four cladocera species

Verbitsky

Verbitskaya

2011

Knowl. Managt. Aquatic Ecosyst.

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Key-words:temperature, ecological optimum, Cladocera, stepwise changes, prolonged effects, realized niche Laboratory experiments with natural zooplankton communities were carried out to study the effects of two contrasting temperature regimes: constant temperature (15, 20, and These results support the previously formulated hypothesis that, in determining the ecological temperature optimum of a species within a natural community, it is not enough to define its optimum from constant, cyclic or random temperature fluctuations, but also from unidirectional stepwise changes in temperature. These stepwise changes may also induce prolonged or delayed effects. RÉSUMÉEffets de changements graduels en température sur la dynamique de quatre espèces de cladocères Mots-clés :température, optimum écologique, Cladocère, changements graduels, effets prolongés, niche « réalisée » de D. brachyurum et Ch. sphaericus, tous les deux sténo-thermophiles, était stimulé seulement par une température élevée stable (25 • C). Ces résultats confirment l'hypothèse formulée auparavant que, dans la détermination de l'optimum thermique d'une espèce d'une communauté naturelle, il ne suffit pas de définir son optimum à partir de températures constantes, ou de fluctuations cycliques ou aléatoires, mais aussi par des changements de température graduels. Ces changements graduels peuvent également produire des effets prolongés ou retardés.

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Submerged macrophytes as refuges for grazing Cladocera against fish predation: observations on seasonal changes in relation to macrophyte cover and predation pressure

Cited by 98 publications

References 52 publications

Littoral zone structures as Daphnia refugia against fish predators

Littoral zone structures as Daphnia refugia against fish predators

Ecological Drivers of Cladoceran Diversity in the Central European City (Łódź, Poland): Effects of Urbanisation and Size of the Waterbody

Effects of constant and stepwise changes in temperature on the species abundance dynamics of four cladocera species

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