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The Effect of Mixtures on Colonisation of Leaf Litter Decomposing in a Stream and at Its Riparian Zone : Volume 14, Issue 1 (03/06/2014)

By Abelho, M.

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Book Id: WPLBN0004023319
Format Type: PDF Article :
File Size: Pages 10
Reproduction Date: 2015

Title: The Effect of Mixtures on Colonisation of Leaf Litter Decomposing in a Stream and at Its Riparian Zone : Volume 14, Issue 1 (03/06/2014)  
Author: Abelho, M.
Volume: Vol. 14, Issue 1
Language: English
Subject: Science, Ecology
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Abelho, M. (2014). The Effect of Mixtures on Colonisation of Leaf Litter Decomposing in a Stream and at Its Riparian Zone : Volume 14, Issue 1 (03/06/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Instituto Politécnico de Coimbra, Escola Superior Agrária, Bencanta, 3045-601 Coimbra, Portugal. The effect of mixing litter on decomposition and colonisation has been the focus of many studies carried independently in terrestrial and aquatic ecosystems. Those studies are carried out in different regions, use different experimental protocols and methodologies for the assessment of additive or non-additive effects, and the conclusions on the effect of mixtures vary accordingly. In this study I tested the hypothesis, via a short-term decomposition experiment, that, when using the same experimental protocol, mixtures have similar additive effects on decomposition and associated biota in a stream and at its riparian zone. The effect of mixing litter was assessed by comparing values in mixtures with the average of single species, alder and poplar (method 1); comparing the value of a species in mixture with the value of that species alone (method 2); and by a graphical analysis of the average difference between observed and expected values and the 95% confidence intervals (method 3). Method 1 was the most conservative, detecting non-additive effects on macroinvertebrate abundance only; method 2 detected non-additive effects on both dry mass remaining and ergosterol, with differential responses of the leaf species and the habitat; and method 3 detected non-additive effects on all variables except ergosterol and percentage detritivore abundance and also identified different responses of the leaves exposed in the terrestrial and the aquatic habitats. These results show that (i) the methodology used to detect the effects of mixtures deeply influences the results obtained, and may partially explain the diversity of responses available in literature; and (ii) the effect of mixtures may differ in the stream and at the riparian area. However, the findings of the present work should be assessed in a larger-scale experiment in order to generalise the effects of mixing litter on terrestrial and aquatic habitats.

Summary
The effect of mixtures on colonisation of leaf litter decomposing in a stream and at its riparian zone

Excerpt
Abelho, M.: From litterfall to breakdown in streams: a review, TheScientificWorld, 1, 656–680, 2001.; Abelho, M.: Effects of leaf litter species on macroinvertebrate colonization during decomposition in a Portuguese stream, Int. Rev. Hydrobiol., 93, 358–371, 2008.; Abelho, M.: Leaf-litter mixtures affect breakdown and macroinvertebrate colonization rates in a stream ecosystem, Int. Rev. Hydrobiol., 94, 436–451, 2009.; Arizpe, D., Mendes, A., and Rabaça, J. E.: Sustainable riparian zones: a management guide, Generalitat Valenciana, Valencia, Spain, 2008.; Ball, B. A., Hunter, M. D., Kominoski, J. S., Swan, C. M., and Bradford, M. A.: Consequences of non-random species loss for decomposition dynamics: experimental evidence for additive and non-additive effects, J. Ecol., 96, 303–313, 2008.; Benfield, E. F.: Comparison of litterfall input to streams, J. N. Am. Benthol. Soc., 16, 104–108, 1997.; Borders, B. D., Pushnik, J. C., and Wood, D. M.: Comparison of leaf litter decomposition rates in restored and mature riparian forests on the Sacramento River, California, Restor. Ecol., 14, 308–315, 2006.; Hanlon, R. D. G. and Anderson, J. M.: The effects of collembola grazing on microbial activity in decomposing leaf litter, Oecologia, 38, 93–99, 1979.; Canhoto, C. and Graça, M. A. S.: Decomposition of Eucalyptus globulus leaves and three native leaf species (Alnus glutinosa, Castanea sativa and Quercus faginea) in a Portuguese low order stream, Hydrobiologia, 333, 79–85, 1996.; Casas, J. J., Zamora-Muñoz, C., Archila, F., and Alba-Tercedor, J.: The effect of a headwater dam on the use of leaf bags by invertebrate communities, Regul. Rivers Res. Manage., 16, 577–591, 2000.; Chauvet, E.: Leaf litter decomposition in large rivers: the case of the River Garonne, Limnetica, 13, 65–70, 1997.; Cummins, K. W.: Riparian-stream linkage paradigm, Verh. Internat. Verein Limnol., 28, 49–58, 2002.; Edmonds, R. L. and Tuttle, K. M.: Red alder leaf decomposition and nutrient release in alder and conifer riparian patches in western Washington, USA, Forest Ecol. Manag., 259, 2375–2381, 2010.; Fior, R. C., Soares, M. R., and Casagrande, J. C.: Nutrient input through litter in riparian forest in different stages of ecological succession, 19th World Congress of Soil Science, Soil Solutions for a Changing World (1–6 August, Brisbane, Australia, Published on DVD), 67–70, 2010.; Gartner, T. B. and Cardon, Z. G.: Decomposition dynamics in mixed-species leaf litter, Oikos, 104, 230–246, 2004.; Gessner, M. O.: Ergosterol as a measure of fungal biomass, in: Methods to study litter decomposition: A practical guide, edited by: Graça, M. A. S., Bärlocher, F., and Gessner, M. O., Springer, Berlin, Germany, 171–176, 2005.; Gessner, M. O. and Chauvet, E.: Growth and production of aquatic hyphomycetes in decomposing leaf litter, Limnol. Oceanogr., 42, 496–595, 1997.; Gonçalves, A. L. and Canhoto, C.: Decomposition of eucalypt and alder mixtures: responses to variation in evenness, Fund. Appl. Limnol., 173, 293–303, 2009.; Gessner, M. O., Swan, C. M., Dang, C. K., McKie, B. G., Bardgett, R. D., Wall, D. H., and Hättenschwiler, S.: Diversity meets decomposition, Trends Ecol. Evol., 25, 372–380, 2010.; Harner, M. J., Crenshaw, C. L., Abelho, M., Stursova, M., Follstad-Shah, J. J., and Sinsabaugh, R. L.: Decomposition of leaf litter from a native tree and an actinorhizal invasive across riparian habitats, Ecol. Appl., 19, 1135–1146, 2009.; Hättenschwiler, S. and Gasser, P.: Soil animals alter plant litter diversity effects on decomposition, P. Natl. Acad. Sci. USA, 102, 1519–1524, 2005.; Hättenschwiler, S., Tiunov, A. V., and Scheu, S.: Biodiversity and litter decomposition in terrestrial ecosystems, Annu. Rev. Ecol. Evol. S., 36, 191–218, 2005.; Hefting, M. M., Clement, J.-C., Bienkowski, P., Dowrick, D., Guenat, C., Butturini, A., Topa, S., Pinay, G., and Verhoevenet, J. T. A.: The role of vegetat


 

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