Effects of Leaf Litter Species on Macroinvertebrate Colonization during Decomposition in a Portuguese Stream

Abelho, Manuela

doi:10.1002/iroh.200711019

Cited by 26 publications

(29 citation statements)

References 45 publications

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“…), and Spanish oak (Quercus ilex ilex L.). Common alder and sweet chestnut are deciduous trees, and in previous studies in Portuguese streams have shown fast and medium breakdown rates, respectively (ABELHO and GRAÇA, 1996;CANHOTO and GRAÇA, 1996;ABELHO, 2008). Spanish oak is an evergreen sclerophyllous tree typical from the Mediterranean chaparral and, although it is not a riparian tree, was chosen due to its leaf toughness and slow breakdown rate (ABELHO, 2008).…”

Section: Methodsmentioning

confidence: 99%

Leaf‐Litter Mixtures Affect Breakdown and Macroinvertebrate Colonization Rates in a Stream Ecosystem

Abelho

2009

International Review of Hydrobiology

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Previous work in terrestrial and aquatic ecosystems has suggested that the relationship between breakdown rates of leaf litter and plant species richness may change unpredictability due to nonadditive effects mediated by the presence of key-species. By using single-and mixed-species leaf bags (7 possible combinations of three litter species differing in toughness; common alder [Alnus glutinosa], sweet chestnut [Castanea sativa], and Spanish oak [Quercus ilex ilex]), I tested whether leaf species diversity, measured as richness and composition, affects breakdown dynamics and macroinvertebrate colonization (abundance, richness and composition) during 90 days incubation in a stream. Decomposition rates were additive, i.e., observed decomposition rates were not different from expected ones. However, decomposition rates of individual leaf species were affected by the mixture, i.e., there were species-specific responses to mixing litter. The invertebrate communities colonizing the mixtures were not richer and more diverse in mixtures than in single-species leaf bags. On the opposite, mixing leaf species had a negative, non-additive effect on rates of shredder and taxa colonization and on macroinvertebrate diversity.

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Section: Methodsmentioning

confidence: 99%

Leaf‐Litter Mixtures Affect Breakdown and Macroinvertebrate Colonization Rates in a Stream Ecosystem

Abelho

2009

International Review of Hydrobiology

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“…Specific elements can show different release patterns in different types of litter (Jonczak et al 2014). Moreover, litter species can affect the microbial and invertebrate assemblages in rivers and thus exert indirect effects on litter decomposition and element release (Leroy and Marks 2006;Abelho 2008).…”

Section: Introductionmentioning

confidence: 99%

Dynamics of multiple metallic elements during foliar litter decomposition in an alpine forest river

Yue

Yang

Peng

et al. 2016

Annals of Forest Science

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Abstract& Key message Compared with previously reported data, we found that plant litter decomposes faster in river ecosystem than on forest floor in a comparable period, but the dynamics of metallic elements during litter decomposition in river are likely to share common patterns with the corresponding ones in decomposing litter on forest floor. & Context Litter decomposition in terrestrial lotic ecosystem is one of the most important pathways for metallic elements cycling, while little information is currently available about the dynamics of metallic elements in the decomposing litter of lotic ecosystems.& Aims and methods The concentrations and release rates of potassium (K), calcium (Ca), sodium (Na), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), and aluminium (Al) were investigated in the decomposing foliar litter of four dominant species in an alpine forest river. & Results Over a 1-year period of decomposition, K, Ca, and Mg were released from virtually all types of litter, whereas Na, Fe, Mn, Zn, Cu, and Al were released from willow litter but accumulated in azalea, cypress, and larch litters during litter decomposition. Litter species, decomposition period, and river water characteristics (e.g., temperature, pH, flow velocity, and nutrient availability) were significantly related to the dynamics of these metallic elements in decomposing litter. & Conclusion Our results suggested that the similarity between the dynamics of metallic elements in the decomposing litter of lotic ecosystems reported here and previously for forest floors indicates a general pattern for the cycling of metallic element across different ecosystem types, and the net accumulation patterns for elements such as Zn, Cu, and Al during litter decomposition suggested that some litter species may act as efficient "cleaner" for metal purification in future ecological engineering.

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“…Previous studies have shown that leaf litter of different plant species is colonized by different invertebrates (Junke and Trivinho-Strixino, 2007;Abelho, 2008) and also presented data reinforcing that shredder invertebrates are able to discriminate among leaf types (Abelho, 2001;Graça, 2001). Thus, the structure of riparian vegetation will determine the nature of the allochthonous matter entering the aquatic environment, which in turn could have an influence on the structure of the aquatic invertebrate assemblages.…”

Section: Introductionmentioning

confidence: 59%

“…Although it has lower physical stability than rock substrate, leaf litter of allochthonous origin also has an important role in the structuring of stream invertebrate community (Uieda and Motta, 2007), enabling litter colonization by a high density and diversity of organisms (Gonçalves Junior et al, 2006a, b;Crisci-Bispo et al, 2007;Junke and Trivinho-Strixino, 2007;Moretti et al, 2007;Abelho, 2008;Carvalho et al, 2008;Schindler and Gessner, 2009). This material of allochthonous origin is fundamental for energy flow and carbon stocks of low-order streams with riparian vegetation (Vannotte et al, 1980;Wallace et al, 1997), and its decomposition constitutes a key process in the structure and metabolism of river systems (Cummins, 1988).…”

Section: Introductionmentioning

confidence: 99%

Experimental manipulation of leaf litter colonization by aquatic invertebrates in a third order tropical stream

2015

Braz. J. Biol.

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Through a manipulative experiment, the colonization of leaf litter by invertebrates was investigated in two sections of a tropical stream (spatial scale) that differed in function of the canopy cover, one with the presence (closed area) and another without riparian vegetation (open area), during one month of the dry and one of the wet season (temporal scale). The work aimed to verify differences related to four variables: season, canopy cover, leaf type and leaf condition. Litter bags containing arboreal and herbaceous leaves (leaf type variable), non-conditioned and preconditioned (leaf condition variable) were placed at the bottom of the stream in each area (canopy cover variable) and season (dry and wet), and removed after 13-day colonization. The analysis of the remaining litter dry mass per leaf bag emphasizes differences related mainly to seasonality, canopy cover and leaf type, although leaf condition was also important when combined with those three factors. Comparing the abundance of invertebrates per treatment, there was a tendency of high predominance of Chironomidae during the dry season and greater taxa diversity and evenness during the wet season, when the water flow increase could alter the availability of microhabitats for local fauna. Even though canopy cover alone was not a significant source of variation in the abundance of invertebrates, the results showed a tendency of a combined effect of canopy cover with seasonality and leaf condition.Keywords: aquatic insects, leaf breakdown, headwater streams, seasonal variation, spatial variation. Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem ResumoAtravés de um experimento de manipulação, a colonização de detritos foliares por invertebrados foi analisada em duas seções de um riacho tropical (escala espacial), que diferem em função da cobertura do dossel , um com a presença (área fechada) e outro sem vegetação ciliar (área aberta), durante um mês da estação seca e um da chuvosa (escala temporal). O trabalho teve como objetivo verificar as diferenças relacionadas a quatro variáveis: estação, cobertura vegetal, tipo e condição da folha. Sacos de náilon contendo folhas de uma planta arbórea e uma herbácea (tipo folha), não-condicionadas e pré-condicionadas (condição da folha) foram colocadas em cada área e estação do ano e removidos após 13 dias de colonização. A análise da massa seca remanescente dos detritos enfatizou diferenças relacionadas principalmente à sazonalidade, cobertura do dossel e tipo folha, embora a condição da folha também tenha sido importante quando combinado com esses três fatores. Comparando a abundância de invertebrados por tratamento, houve uma tendência de predominância de Chironomidae durante a estação seca e maior diversidade e equidade durante a estação chuvosa, quando o aumento do fluxo de água pode alterar a disponibilidade de micro-habitats para a fauna local. Apesar de cobertura do dossel sozinha não ter sido uma importante fonte de variaçã...

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Effects of Leaf Litter Species on Macroinvertebrate Colonization during Decomposition in a Portuguese Stream

Cited by 26 publications

References 45 publications

Leaf‐Litter Mixtures Affect Breakdown and Macroinvertebrate Colonization Rates in a Stream Ecosystem

Leaf‐Litter Mixtures Affect Breakdown and Macroinvertebrate Colonization Rates in a Stream Ecosystem

Dynamics of multiple metallic elements during foliar litter decomposition in an alpine forest river

Experimental manipulation of leaf litter colonization by aquatic invertebrates in a third order tropical stream

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