Abstract
AbstractDetritivores are pivotal in forest streams as they process detritus and promote secondary production. Many studies have addressed the preference of freshwater detritivores towards materials of differing quality. Nevertheless, few studies compare the resource preferences in the laboratory with the availability in the field. In the present study, feeding preferences of two stream detritivores (the caddisfly Sericostoma pyrenaicum and the amphipod Echinogammarus tarragonensis), over three native leaf species (alder, chestnut and oak) and an exotic species (eucalypt) were quantified in the laboratory. Preference for eucalypt leaves conditioned for 1, 2 and 3 weeks was also described. We then contrasted the preference patterns in the laboratory feeding experiments with a 15-month-long benthic standing stock time series of a stream below a native deciduous forest and another below a eucalypt plantation. Both detritivores preferred consuming alder leaves and more conditioned eucalypt leaves, although the amphipod was more selective than the caddisfly. The consumption preference in the laboratory was unmatched by the availability in the field, especially under eucalypt plantations and for the amphipod. Our results show that the strength of the preference for high-quality resources can differ among different taxa, which can modulate their response to land use changes.
Funder
dirección general de enseñanza superior e investigación científica
eusko jaurlaritza
Universidad del País Vasco
Publisher
Springer Science and Business Media LLC
Reference71 articles.
1. Abelho, M. & M. A. S. Graça, 1996. Effects of eucalyptus afforestation on leaf litter dynamics and macroinvertebrate community structure of streams in Central Portugal. Hydrobiologia 324: 195–204.
2. Allen, S. E., H. M. Grimshaw, J. A. Parkinson & C. Quarmby, 1974. Chemical Analisis of Ecological Materials, Blackwell Scientific Publications, Oxford, UK:
3. Anderson, M. J. & C. F. K. Ter Braak, 2003. Permutation tests for multi-factorial analysis of variance. Journal of Statistical Computation and Simulation 73: 85–113.
4. Arias-Real, R., M. Menéndez, M. Abril, F. Oliva & I. Muñoz, 2018. Quality and quantity of leaf litter: both are important for feeding preferences and growth of an aquatic shredder. PLoS ONE 13: e0208272.
5. Arsuffi, T. L. & K. Suberkropp, 1989. Selective feeding by shredders on leaf-colonizing stream fungi: comparison of macroinvertebrate taxa. Oecologia 79: 30–37.
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