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Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity. / Aberle, N.; Malzahn, A. M.; Grey, Jonathan et al.
In: Helgoland Marine Research, Vol. 63, No. 3, 09.2009, p. 189-197.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Aberle, N, Malzahn, AM, Grey, J, Hillebrand, H & Wiltshire, KH 2009, 'Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity', Helgoland Marine Research, vol. 63, no. 3, pp. 189-197. https://doi.org/10.1007/s10152-009-0148-9

APA

Aberle, N., Malzahn, A. M., Grey, J., Hillebrand, H., & Wiltshire, K. H. (2009). Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity. Helgoland Marine Research, 63(3), 189-197. https://doi.org/10.1007/s10152-009-0148-9

Vancouver

Aberle N, Malzahn AM, Grey J, Hillebrand H, Wiltshire KH. Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity. Helgoland Marine Research. 2009 Sept;63(3):189-197. doi: 10.1007/s10152-009-0148-9

Author

Aberle, N. ; Malzahn, A. M. ; Grey, Jonathan et al. / Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity. In: Helgoland Marine Research. 2009 ; Vol. 63, No. 3. pp. 189-197.

Bibtex

@article{9b7ecbc5b6584a9fb2e31fc90e4f5ce4,
title = "Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity",
abstract = "This study aimed to identify differences in selectivity, foraging behaviour and complementary feeding of two benthic consumers (the isopod Idotea emarginata and the snail Hydrobia ulvae) using traditional cell counting as an indicator for algal biomass reduction and stable isotope labelling to detect differences in assimilation and digestion. We hypothesized that even when active feeding preferences of food components are not apparent, passive selectivity via mechanisms such as food assimilation and digestion can be of relevance. Algal biomass was reduced to a similar degree by the grazers independently from grazer and prey combinations without any indication for an active choice of food components. However, the isotope labelling approach indicated that passive selectivity can alter complementary feeding strategies, as we detected shifts in feeding preferences in relation to food quantity and competition. Thus, stable isotope labelling of food components opens up new perspectives in community ecology, allowing assessment of such complex mechanisms as passive selectivity, complementary feeding and competition.",
keywords = "Benthic microalgae, Isotope fractionation, Resource partitioning, Microphytobenthos, Stable isotope enrichment",
author = "N. Aberle and Malzahn, {A. M.} and Jonathan Grey and H. Hillebrand and Wiltshire, {K. H.}",
year = "2009",
month = sep,
doi = "10.1007/s10152-009-0148-9",
language = "English",
volume = "63",
pages = "189--197",
journal = "Helgoland Marine Research",
issn = "1438-387X",
publisher = "Springer Verlag",
number = "3",

}

RIS

TY - JOUR

T1 - Altered complementary feeding strategies of the consumers Hydrobia ulvae and Idotea emarginata via passive selectivity

AU - Aberle, N.

AU - Malzahn, A. M.

AU - Grey, Jonathan

AU - Hillebrand, H.

AU - Wiltshire, K. H.

PY - 2009/9

Y1 - 2009/9

N2 - This study aimed to identify differences in selectivity, foraging behaviour and complementary feeding of two benthic consumers (the isopod Idotea emarginata and the snail Hydrobia ulvae) using traditional cell counting as an indicator for algal biomass reduction and stable isotope labelling to detect differences in assimilation and digestion. We hypothesized that even when active feeding preferences of food components are not apparent, passive selectivity via mechanisms such as food assimilation and digestion can be of relevance. Algal biomass was reduced to a similar degree by the grazers independently from grazer and prey combinations without any indication for an active choice of food components. However, the isotope labelling approach indicated that passive selectivity can alter complementary feeding strategies, as we detected shifts in feeding preferences in relation to food quantity and competition. Thus, stable isotope labelling of food components opens up new perspectives in community ecology, allowing assessment of such complex mechanisms as passive selectivity, complementary feeding and competition.

AB - This study aimed to identify differences in selectivity, foraging behaviour and complementary feeding of two benthic consumers (the isopod Idotea emarginata and the snail Hydrobia ulvae) using traditional cell counting as an indicator for algal biomass reduction and stable isotope labelling to detect differences in assimilation and digestion. We hypothesized that even when active feeding preferences of food components are not apparent, passive selectivity via mechanisms such as food assimilation and digestion can be of relevance. Algal biomass was reduced to a similar degree by the grazers independently from grazer and prey combinations without any indication for an active choice of food components. However, the isotope labelling approach indicated that passive selectivity can alter complementary feeding strategies, as we detected shifts in feeding preferences in relation to food quantity and competition. Thus, stable isotope labelling of food components opens up new perspectives in community ecology, allowing assessment of such complex mechanisms as passive selectivity, complementary feeding and competition.

KW - Benthic microalgae

KW - Isotope fractionation

KW - Resource partitioning

KW - Microphytobenthos

KW - Stable isotope enrichment

U2 - 10.1007/s10152-009-0148-9

DO - 10.1007/s10152-009-0148-9

M3 - Journal article

VL - 63

SP - 189

EP - 197

JO - Helgoland Marine Research

JF - Helgoland Marine Research

SN - 1438-387X

IS - 3

ER -