https://revistas.ucr.ac.cr/index.php/rbtRevista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

Land use effects on leaf litter breakdown in low-order streams draining a rapidly developing tropical watershed in Puerto Rico

Pedro J. Torres, Alonso Ramírez



DOI: https://doi.org/10.15517/rbt.v62i0.15783

Abstract


Land use has an important role influencing stream ecosystem processes, such as leaf litter breakdown. Here, we assessed rates of leaf litter breakdown in low-order tropical streams draining forest, agriculture, and urban land uses in Puerto Rico. To measure leaf breakdown rates, we placed litter bags made of coarse mesh in nine streams, three for each land use type. At each stream, we measured changes in leaf mass over time, leaf breakdown rates, macroinvertebrate assemblages, and stream physicochemistry. Streams differed in their water physicochemistry, with urban streams showing high values for most variables. Stream physical habitat was evaluated using a visual assessment protocol, which indicated that agricultural and urban streams were more degraded than forested streams. Leaf breakdown rates were fast in all streams (k values ranging 0.006-0.024). Breakdown rates were significantly related to the physical conditions of the stream channel (e.g., visual protocol scores), with fastest rates in forested streams. Invertebrates colonizing leaves were mainly mayflies (Leptophlebiidae, Baetidae, and Caenidae), dipterans (Chironomidae), caddisflies (Polycentropodidae), and beetles (Elmidae and Gyrinidae). Our streams lacked large decapod populations, contrasting with other Puerto Rican streams. We found little evidence for an insect effect on leaf breakdown. Results suggest that land use is an important factor affecting leaf litter processing in streams. In contrast to studies in temperate regions, we found little evidence for a positive nutrient related effect of agricultural land use on decomposition rates. Changes in the physical characteristics of streams appear to be the main drivers behind observed decomposition patterns. Rev. Biol. Trop. 62 (Suppl. 2): 129-142. Epub 2014 April 01.

Keywords


tropical streams, land use, detritivores, human impacts, decay rates, Puerto Rico.

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References


Aide, T. M., & Grau, H. R. (2004). Globalization, migration, and Latin American ecosystems. Science, 305, 1915-1916.

Allan, J. D. (2004). Landscapes and riverscapes: The influence of land use on river ecosystems. Annual Review of Ecology, Evolution, and Systematics, 35, 257-284.

Benfield, E. F. (2007). Decomposition of leaf material. In F. R. Hauer & G. A. Lamberti (Eds.), Methods in stream ecology (pp. 711-720). New York: Academic Press.

Benstead, J. P., Douglas, M. M., & Pringle, C. M. (2003). Relationships of stream invertebrate communities to deforestation in eastern Madagascar. Ecological Applications, 13, 1473-1490.

Bernot, M. J., Sobota, D. J., Hall, R. O., Mulholland, P. J., Dodds, W. K., Webster, J. R., Tank, J. L., Ashkenas, L. R., Cooper, L. W., Dahm, C. N., Gregory, S. V., Grimm, N. B., Hamilton, S. K., Johnson, S. L., McDowell, W. H., Meyer, J. L., Peterson, B., Poole, G. C., Valett, H. M., Arango, C., Beaulieu, J. J., Burgin, A. J., Crenshaw, C., Helton, A. M., Johnson, L., Merriam, J., Niederlehner, B. R., O’Brien, J. M., Potter, J. D., Sheibley, R. W., Thomas, S. M., & Wilson, K. (2010). Inter-regional comparison of land-use effects on stream metabolism. Freshwater Biology, 55, 1874-1890.

Bobeldyk, A. M., & Ramírez, A. (2007). Leaf breakdown in a tropical headwater stream (Puerto Rico): The role of freshwater shrimps and detritivorous insects. Journal of Freshwater Ecology, 22, 581-590.

Bonada, N., Prat, N., Resh, V. H., & Statzner, B. (2006). Developments in aquatic insect biomonitoring: A comparative analysis of recent approaches. Annual Review Entomology, 51, 495–523.

Boulton, A. J., Boyero, L., Covich, A. P., Dobson, M., Lake, S., & Pearson, R. G. (2008). Are tropical streams ecologically different from temperate streams? In D. Dudgeon. (Ed.) Tropical Stream Ecology. San Diego: Academic Press.

Boyero, L., Ramírez, A., Dudgeon, D., & Pearson, R. G. (2009). Are tropical streams really different? Journal of the North American Benthological Society, 28, 397-403.

Brokaw, N. V. L. (1998). Cecropia schreberiana in the Luquillo Mountains in Puerto Rico. The Botanical Review, 64, 91-120.

Chin, A. (2006). Urban transformation of river landscapes in a global context. Geomorphology, 79, 460-487.

Crowl, T. A, McDowell, W. H., Covich, A. P., & Johnson, S. L. (2001). Freshwater shrimp effects on detrital processing and nutrients in a tropical headwater stream. Ecology, 82, 775-783.

de Jesús-Crespo, R., & Ramírez, A. (2011). The use of a Stream Visual Assessment Protocol to determine ecosystem integrity in an urban watershed in Puerto Rico. Physics and Chemistry of the Earth, 36, 560-566.

Dudgeon, D. (1994). The influence of riparian vegetation on macroinvertebrate community structure and functional-organization in 6 new-guinea streams. Hydrobiologia, 294, 65-85.

Dudgeon, D., & Wu, K. K. Y. (1999). Leaf litter in a tropical stream: food or substrate for macroinvertebrates? Archive fur Hydrobiologie, 146, 65-82.

Encalada, A. C., Calles, J., Ferreira, V., Canhoto, C. M., & Graça, M. (2010). Riparian land use and the relationship between the benthos and litter decomposition in tropical montane streams. Freshwater Biology, 55, 1719-1733.

Gessner, M. O., Chauvet, E., & Dobson, M. (1999). A perspective on leaf litter breakdown in streams. Oikos, 85: 377-384.

Grau, H. R., Aide, T. M., Zimmerman, J. K., Thomlinson, J. R., Helmer, E., & Zou, X. (2003). The ecological consequences of socioeconomic and land-use changes in postagriculture Puerto Rico. BioScience, 53, 1159-1168.

Greathouse E. A., Pringle, C. M., McDowell, W. H., & Holmquist, J. G. (2006). Indirect upstream effects of dams: Consequences of migratory consumer extirpation in Puerto Rico. Ecological Applications, 16, 339-352.

Hieber, M., & Gessner, M. O. (2002). Contribution of stream

detritivores, fungi, and bacteria to leaf breakdown based on biomass estimates. Ecology, 83, 1026-1038.

Holmquist, J. G., Schmidt-Gengenbach, J. M., & Yoshioka, B. B. (1998). High dams and marine-freshwater linkages: effects on native and introduced fauna in the Caribbean. Conservation Biology, 12, 621-630.

Huryn, A. D., Butz Huryn, V. M., Arbuckle, C. J., & Tsomides, L. (2002). Catchment land-use, macroinvertebrates and detritus processing in headwater streams: Taxonomic richness versus function. Freshwater Biology, 47, 401-415.

Hynes, J. D. (1975). Downstream drift of invertebrates in a river in southern Ghana. Freshwater Biology, 5, 515-532.

Kwak, T. J., Cooney, P. B., & Brown, C. H. (2007). Fishery population and habitat assessment in Puerto Rico streams: phase 1 final report. San Juan: Federal Aid in Sport Fish Restauration, Final Report, Submitted to the Department of Natural and Environmental Resources.

March, J. G., Benstead, J. P., Pringle, C. M., & Ruebel, M. W. (2001). Linking shrimp assemblages with rates of detrital processing along an elevational gradient in a tropical stream. Canadian Journal of Fisheries and Aquatic Sciences, 58, 470-478.

March, J. G., Benstead, J. P., Pringle, C. M., & Scatena, F. N. (2003). Damming tropical island streams: Problems, solutions, and alternatives. BioScience, 53, 1069-1078.

Martinuzzi, S., Gould, W. A., & Ramos González, O. M. (2007). Land development, land use, and urban sprawl in Puerto Rico integrating remote sensing and population census data. Landscape and Urban Planning, 79, 288-297.

McCune, B., & Mefford, M. J. (1999). PC-ORD. Multivariate Analysis of Ecological Data, Version 4. MjM Software Design, Gleneden Beach, Oregon, USA.

Montgomery, M. R. (2008). The Urban Transformation of the Developing World. Science, 319, 761-764.

Paul, M. J., & Meyer, J. L. (2001). Streams in the urban landscape. Annual Review of Ecology, Evolution, and Systematics, 32, 333-365.

Paul, M. J., Meyer, J. L., & Couch, C. A. (2006). Leaf breakdown in streams differing in catchment land use. Freshwater Biology, 51, 1684-1695.

Peterson, R. C., & Cummins, K. W. (1974). Leaf processing in a woodland stream. Freshwater Biology, 4, 343-368.

Pringle, C. M., Hemphill, N. H., McDowell, W. H., Bednarek, A., & March, J.G. (1999). Linking species and ecosystems: different biotic assemblages cause interstream differences in organic matter. Ecology, 80, 1860-1872.

Ramírez, A., & C.M. Pringle. (1998). Structure and production of a benthic insect assemblage in a neotropical stream. Journal of the North American Benthological Society, 17, 443-463.

Ramírez, A., Paaby, P., Pringle, C. M., & Agüero, G. (1998). Effect of habitat type on benthic macroinvertebrates in two lowland tropical streams, Costa Rica. Revista de Biología Tropical, 46, 201-213.

Ramírez, A., & Hernández-Cruz, L. R. (2004). Aquatic insect assemblages in shrimp-dominated tropical streams, Puerto Rico. Biotropica, 36, 259-266.

Ramírez, A., & Pringle, C. M. (2006). Fast growth and turnover of chironomid assemblages in response to stream phosphorus levels in a tropical lowland landscape. Limnology & Oceanography, 51, 189-196.

Ramírez, A., Pringle, C. M., & Wantzen, K. M. (2008). Tropical River Conservation. In D. Dudgeon (Ed.). Tropical Stream Ecology (pp. 285-304). San Diego: Academic Press.

Richardson, J. S., Zhang, Y., & Marczak, L. B. (2010). Resource subsidies across the land–freshwater interface and responses in recipient communities. River Research and Applications, 26, 55-66.

Robinson, C. T., & Gessner, M. O. (2000). Nutrient addition accelerates leaf breakdown in an alpine springbrook. Oecologia, 122, 258-263.

Rosemond, A. D., Pringle, C. M., Ramírez, A., & Paul, M. J. (2001). A test of top-down and bottom-up control in a detritus-based food web. Ecology, 82, 2279-2293.

Silva-Junior, E. F., Moulton, T. P., Boëchat, I. G., & Gücker, B. (2014). Leaf decomposition and ecosystem metabolism as functional indicators of land use impacts on tropical streams. Ecological Indicators, 36, 195-204.

Sponseller, R. A., Benfield, E. F., & Valett, H. M. (2001). Relationships between land use, spatial scale and stream macroinvertebrate communities. Freshwater Biology, 46, 1409-1424.

Suberkropp, K., & Chauvet, E. (1995). Regulation of leaf breakdown by fungi in streams - influences of water chemistry. Ecology, 76, 1433-1445.

Suga, C. M., & Tanaka, M. O. (2013). Influence of a forest remnant on macroinvertebrate communities in a degraded tropical stream. Hydrobiologia, 703, 2013-213.

Sweeney, B. W., Bott, T. L., Jackson, J. K., Kaplan, L. A., Newbold, J. D., Standley, L. J., Hession, W. C., & Horwitz, R. J. (2004). Riparian deforestation, stream narrowing, and loss of stream ecosystem services. Proceedings of the National Academy of Sciences, 101, 14132-14137.

USDA (US DEPARTMENT OF AGRICULTURE). (2001). Hawaii stream visual assessment protocol. Version 1.0. Natural Resource Conservation Service, US Department of Agriculture, Washington, DC.

Wallace, J. B., & Gurtz, M. E. (1986). Response of baetis mayflies (Ephemeroptera) to catchment logging. American Midland Naturalist, 115, 25-41.

Wallace, J. B., Eggert, S. L., Meyer, J. L., & Webster, J. R. (1997). Multiple trophic levels of a forest stream linked to terrestrial litter inputs. Science, 277, 102-104.

Walsh, C. J., Roy, A. H., Feminella, J. W., Cottingham, P. D., Groffman, P. M., & Morgan, R. P. (2005). The urban stream syndrome: current knowledge and the search for a cure. Journal of the North American Benthological Society, 24, 706-723.

Webster, J. R., & Benfield, E. F. (1986). Vascular plant breakdown in freshwater ecosystems. Annual Review of Ecology, Evolution, and Systematics, 17, 567-594.

Webster, J. R., Benfield, E.F., Ehrman, T. P., Schaeffer, M. A., Tank, J. L., Hutchens, J. J., & D’Angelo, D. J. (1999). What happens to allochthonous material that falls into streams? A synthesis of new and published information from Coweeta. Freshwater Biology, 41, 687-705.

Wright, M. S., & Covich, A. P. (2005). The effect of macroinvertebrate exclusion on leaf breakdown rates in a tropical headwater stream. Biotropica, 37, 403-408.

Young, R. G., Matthaei, C. D., & Townsend, C. R. (2008). Organic matter breakdown and ecosystem metabolism: functional indicators for assessing river ecosystem health. Journal of the North American Benthological Society, 27: 605-625.


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