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Your search keyword '"Chará‐Serna, Ana M."' showing total 8 results
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8 results on '"Chará‐Serna, Ana M."'

1. Impacts of detritivore diversity loss on instream decomposition are greatest in the tropics

Author

Boyero, Luz, López-Rojo, Naiara, Tonin, Alan M., Pérez, Javier, Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Basaguren, Ana, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Calor, Adolfo R., Campbell, Ian C., Cardinale, Bradley J., Jesús Casas, J., Chará-Serna, Ana M., Chauvet, Eric, Ciapała, Szymon, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, María E., Douglas, Michael M., Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, García, Erica A., García, Gabriela, García, Pavel E., Gessner, Mark O., Gómez, Jesús E., Gómez, Sergio, Gonçalves, Jr, Jose F., Graça, Manuel A. S., Gwinn, Daniel C., Hall, Jr, Robert O., Hamada, Neusa, Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Kariuki, Samuel K., Landeira-Dabarca, Andrea, Laymon, Kelsey, Leal, María, Marchant, Richard, Martins, Renato T., Masese, Frank O., Maul, Megan, McKie, Brendan G., Medeiros, Adriana O., Erimba, Charles M. M’, Middleton, Jen A., Monroy, Silvia, Muotka, Timo, Negishi, Junjiro N., Ramírez, Alonso, Richardson, John S., Rincón, José, Rubio-Ríos, Juan, dos Santos, Gisele M., Sarremejane, Romain, Sheldon, Fran, Sitati, Augustine, Tenkiano, Nathalie S. D., Tiegs, Scott D., Tolod, Janine R., Venarsky, Michael, Watson, Anne, and Yule, Catherine M.

Published
2021
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3. Global distribution of a key trophic guild contrasts with common latitudinal diversity patterns

Author

Boyero, Luz, Pearson, Richard G., Dudgeon, David, Graça, Manuel A. S., Gessner, Mark O., Albariño, Ricardo J., Ferreira, Verónica, Yule, Catherine M., Boulton, Andrew J., Arunachalam, Muthukumarasamy, Callisto, Marcos, Chauvet, Eric, Ramírez, Alonso, RAMÍREZ, ALONZO, Chará, Julián, Moretti, Marcelo S., Gonçalves,, José F., Helson, Julie E., Chará-Serna, Ana M., Encalada, Andrea C., Davies, Judy N., Lamothe, Sylvain, Cornejo, Aydeè, Li, Aggie O. Y., Buria, Leonardo M., Villanueva, Verónica D., Zúñiga, María C., and Pringle, Catherine M.

Published
2011

4. Latitudinal gradient of nestedness and its potential drivers in stream detritivores

Author

Boyero, Luz, Pearson, Richard G., Swan, Christopher M., Hui, Cang, Albariño, Ricardo J., Arunachalam, Muthukumarasamy, Callisto, Marcos, Chará, Julián, Chará-Serna, Ana M., Chauvet, Eric, Cornejo, Aydeé, Dudgeon, David, Encalada, Andrea C., Ferreira, Verónica, Gessner, Mark O., Gonçalves, José F., Jr, Graça, Manuel A. S., Helson, Julie E., Mathooko, Jude M., McKie, Brendan G., Moretti, Marcelo S., and Yule, Catherine M.

Published
2015
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6. Diets of leaf litter-associated invertebrates in three tropical streams.

Author

Chará-Serna, Ana M., Chará, Julián D., Zúñiga, María del Carmen, Pearson, Richard G., and Boyero, Luz

Subjects
*FOREST litter, *RIVER ecology, *BIOMASS, *PLANT diversity, *AQUATIC invertebrates
Abstract

Shredders play a major ecological role in temperate streams, but their numerical importance is highly variable within the tropics. Detailed studies on the diets of tropical stream invertebrates are advisable to be able to better describe and understand this variation. Here, we examined the diets of invertebrates collected from the leaf litter of three tropical streams in Colombia, using gut content analysis. Fine and coarse particulate organic matter were the main food resources for invertebrates, which could be divided into four main dietary groups: predators, shredders, specialist collectors and generalist collectors. While the specialist collectors were the most numerically abundant group (54%), shredder biomass accounted for 63% of total invertebrate biomass, suggesting that shredders play a significant ecological role in the study streams. We describe the diets of 12 out of 47 taxa that were previously unknown, which indicates that knowledge about the feeding ecology of tropical stream invertebrates is still incipient. [ABSTRACT FROM AUTHOR]

Published
2012
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7. Multiple-Stressor Interactions in Tributaries Alter Downstream Ecosystems in Stream Mesocosm Networks.

Author

Chará-Serna, Ana M., Richardson, John S., and Cortes, Rui

Subjects
ECOSYSTEMS, ECOLOGICAL disturbances, POPULATION dynamics, CADDISFLIES, STONEFLIES
Abstract

We studied how multiple-stresssors in tributaries affect function, diversity, and physical habitat of recipient downstream ecosystems. Using a mesocosm model of a stream network, we manipulated sediment and nutrients individually and in combination in tributaries of second-order channels, to test the effect of complex stressor interactions within tributaries on recipient channels. Sedimentation in second-order channels increased with the level of disturbance of the tributaries. Moreover, Ephemeroptera, Plecoptera, and Trichoptera (EPT) density and EPT richness were higher in second-order channels fed by tributaries where the stressors were applied separately, compared to those fed by tributaries where the stressors were applied simultaneously. Our observations suggest this result was due to the combination of the two stressors within the same tributary reducing EPT drift from the tributaries further than the addition of the stressors in separate tributaries. These results support the hypothesis that cumulative upstream disturbance can influence downstream recipient ecosystems in stream networks. However, contrary to our expectations, most observed effects were due to impacts on dispersal patterns of EPT taxa, rather than downstream accumulation of disturbances throughout the network. Our results underscore the importance of metacommunity frameworks to understand how tributary disturbance may influence population dynamics in downstream ecosystems. [ABSTRACT FROM AUTHOR]

Published
2021
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8. Latitude dictates plant diversity effects on instream decomposition.

Author

Boyero, Luz, Pérez, Javier, López-Rojo, Naiara, Tonin, Alan M., Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Beesley, Leah, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Campbell, Ian C., Cardinale, Bradley J., Casas, J. Jesús, Chará-Serna, Ana M., Ciapała, Szymon, and Chauvet, Eric

Subjects
*PLANT diversity, *RIPARIAN plants, *ALNUS glutinosa, *LATITUDE, *FOREST litter decomposition, *LIFE sciences, *AQUATIC sciences, *PLANT invasions
Abstract

The article offers information on how latitude dictates plant diversity effects on instream decomposition. It mentions that running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. It discusses the consequences of the latitudinal pattern indicates that loss of plant functional diversity.

Published
2021
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