Search Results - "Ratnarajah, Lavenia"

Monitoring and modelling marine zooplankton in a changing climate by Ratnarajah, Lavenia, Abu-Alhaija, Rana, Atkinson, Angus, Batten, Sonia, Bax, Nicholas J., Bernard, Kim S., Canonico, Gabrielle, Cornils, Astrid, Everett, Jason D., Grigoratou, Maria, Ishak, Nurul Huda Ahmad, Johns, David, Lombard, Fabien, Muxagata, Erik, Ostle, Clare, Pitois, Sophie, Richardson, Anthony J., Schmidt, Katrin, Stemmann, Lars, Swadling, Kerrie M., Yang, Guang, Yebra, Lidia

“…Zooplankton are major consumers of phytoplankton primary production in marine ecosystems. As such, they represent a critical link for energy and matter…”
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The biogeochemical role of baleen whales and krill in Southern Ocean nutrient cycling by Ratnarajah, Lavenia, Bowie, Andrew R, Lannuzel, Delphine, Meiners, Klaus M, Nicol, Stephen

“…The availability of micronutrients is a key factor that affects primary productivity in High Nutrient Low Chlorophyll (HNLC) regions of the Southern Ocean…”
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Quantifying the role of iron recycling by Adélie and Emperor penguins over the austral spring and summer in Prydz Bay by Ratnarajah, Lavenia, Emmerson, Louise, Southwell, Colin, Lannuzel, Delphine, Townsend, Ashley T., Bowie, Andrew R.

“…In large areas of the Southern Ocean, iron limits phytoplankton production. Although biologically mediated iron recycling has been studied for the higher…”
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Pelagic Iron Recycling in the Southern Ocean: Exploring the Contribution of Marine Animals by Ratnarajah, Lavenia, Nicol, Steve, Bowie, Andrew R.

“…The availability of iron controls primary productivity in large areas of the Southern Ocean. Iron is largely supplied via atmospheric dust deposition, melting…”
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Identifying potential sources of iron-binding ligands in coastal Antarctic environments and the wider Southern Ocean by Smith, Abigail J.R., Nelson, Talitha, Ratnarajah, Lavenia, Genovese, Cristina, Westwood, Karen, Holmes, Thomas M., Corkill, Matthew, Townsend, Ashley T., Bell, Elanor, Wuttig, Kathrin, Lannuzel, Delphine

“…The availability of iron (Fe) to marine microbial communities is enhanced through complexation by ligands. In Fe limited environments, measuring the…”
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Effects of exotic riparian vegetation on leaf breakdown by shredders: a tropical–temperate comparison by Boyero, Luz, Barmuta, Leon A., Ratnarajah, Lavenia, Schmidt, Katrin, Pearson, Richard G.

“…Displacement of riparian vegetation by exotic species is a global phenomenon with the potential to affect leaf breakdown rates by shredders. We predicted that…”
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Correction: The biogeochemical role of baleen whales and krill in Southern Ocean nutrient cycling by Ratnarajah, Lavenia, Bowie, Andrew R, Lannuzel, Delphine, Meiners, Klaus M, Nicol, Stephen

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Regenerated iron: How important are different zooplankton groups to oceanic productivity? by Ratnarajah, Lavenia

“…The scarcity of iron limits phytoplankton growth in large areas of the global ocean. Zooplankton may contribute to the cycling of iron via excretion and…”
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Resource Colimitation Drives Competition Between Phytoplankton and Bacteria in the Southern Ocean by Ratnarajah, Lavenia, Blain, Stéphane, Boyd, Philip W., Fourquez, Marion, Obernosterer, Ingrid, Tagliabue, Alessandro

“…Across the Southern Ocean, phytoplankton growth is governed by iron and light, while bacterial growth is regulated by iron and labile dissolved organic carbon…”
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Examining the Interaction Between Free‐Living Bacteria and Iron in the Global Ocean by Pham, Anh Le‐Duy, Aumont, Olivier, Ratnarajah, Lavenia, Tagliabue, Alessandro

“…Marine free‐living (FL) bacteria play a key role in the cycling of essential biogeochemical elements, including iron (Fe), during their uptake, transformation…”
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Circumpolar Deep Water and Shelf Sediments Support Late Summer Microbial Iron Remineralization by Smith, Abigail J. R., Ratnarajah, Lavenia, Holmes, Thomas M., Wuttig, Kathrin, Townsend, Ashley T., Westwood, Karen, Cox, Martin, Bell, Elanor, Nicol, Stephen, Lannuzel, Delphine

“…Despite widespread iron (Fe) limitation in the Southern Ocean, intense phytoplankton blooms are observed around productive coastal regions such as the Mertz…”
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Nutrient Cycling: Are Antarctic Krill a Previously Overlooked Source in the Marine Iron Cycle? by Ratnarajah, Lavenia, Bowie, Andrew R.

“…Iron limits phytoplankton growth in large areas of the Southern Ocean. A new study shows that Antarctic krill play a crucial role in the recycling of iron in…”
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Distribution and export of particulate organic carbon in East Antarctic coastal polynyas by Ratnarajah, Lavenia, Puigcorbé, Viena, Moreau, Sébastien, Roca-Martí, Montserrat, Janssens, Julie, Corkill, Matthew, Duprat, Luis, Genovese, Cristina, Lieser, Jan, Masqué, Pere, Lannuzel, Delphine

“…Polynyas represent regions of enhanced primary production because of the low, or absent, sea-ice cover coupled with the proximity of nutrient sources. However,…”
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Biotic and abiotic variables influencing plant litter breakdown in streams: a global study by Boyero, Luz, Pearson, Richard G., Hui, Cang, Gessner, Mark O., Pérez, Javier, Alexandrou, Markos A., Graça, Manuel A. S., Cardinale, Bradley J., Albariño, Ricardo J., Arunachalam, Muthukumarasamy, Barmuta, Leon A., Boulton, Andrew J., Bruder, Andreas, Callisto, Marcos, Chauvet, Eric, Death, Russell G., Dudgeon, David, Encalada, Andrea C., Ferreira, Verónica, Figueroa, Ricardo, Flecker, Alexander S., Gonçalves, José F., Helson, Julie, Iwata, Tomoya, Jinggut, Tajang, Mathooko, Jude, Mathuriau, Catherine, M'Erimba, Charles, Moretti, Marcelo S., Pringle, Catherine M., Ramírez, Alonso, Ratnarajah, Lavenia, Rincon, José, Yule, Catherine M.

“…Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, contribute substantially to…”
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Physical speciation and solubility of iron from baleen whale faecal material by Ratnarajah, Lavenia, Lannuzel, Delphine, Townsend, Ashley T., Meiners, Klaus M., Nicol, Stephen, Friedlaender, Ari S., Bowie, Andrew R.

“…Primary productivity in large areas of the Southern Ocean is limited by the availability of a key micronutrient—iron (Fe). Recently it has been suggested that…”
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global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration by Boyero, Luz, Pearson, Richard G, Gessner, Mark O, Barmuta, Leon A, Ferreira, Verónica, Graça, Manuel A.S, Dudgeon, David, Boulton, Andrew J, Callisto, Marcos, Chauvet, Eric, Helson, Julie E, Bruder, Andreas, Albariño, Ricardo J, Yule, Catherine M, Arunachalam, Muthukumarasamy, Davies, Judy N, Figueroa, Ricardo, Flecker, Alexander S, Ramírez, Alonso, Death, Russell G, Iwata, Tomoya, Mathooko, Jude M, Mathuriau, Catherine, Gonçalves, José F. Jr, Moretti, Marcelo S, Jinggut, Tajang, Lamothe, Sylvain, M'Erimba, Charles, Ratnarajah, Lavenia, Schindler, Markus H, Castela, José, Buria, Leonardo M, Cornejo, Aydeé, Villanueva, Verónica D, West, Derek C

“…Ecology Letters (2011) 14: 289-294 ABSTRACT: The decomposition of plant litter is one of the most important ecosystem processes in the biosphere and is…”
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Shredders in Malaysia: abundance and richness are higher in cool upland tropical streams by Yule, Catherine M, Leong, Mun Yi, Liew, Kong Cheng, Ratnarajah, Lavenia, Schmidt, Katrin, Wong, Hooi Ming, Pearson, Richard G, Boyero, Luz

“…Stream shredders have been reported as scarce in several tropical areas. This pattern is in contrast to observations in temperate streams, which support an…”
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Understanding the variability in the iron concentration of Antarctic krill by Ratnarajah, Lavenia, Nicol, Stephen, Kawaguchi, So, Townsend, Ashley T., Lannuzel, Delphine, Meiners, Klaus M., Bowie, Andrew R.

“…Antarctic krill may play a significant role in the Southern Ocean iron cycle. However, understanding the control on iron budgets by Antarctic krill is hampered…”
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A preliminary model of iron fertilisation by baleen whales and Antarctic krill in the Southern Ocean: Sensitivity of primary productivity estimates to parameter uncertainty by Ratnarajah, Lavenia, Melbourne-Thomas, Jessica, Marzloff, Martin P., Lannuzel, Delphine, Meiners, Klaus M., Chever, Fanny, Nicol, Stephen, Bowie, Andrew R.

“…•We model uncertainty in key parameters for biological iron recycling in the ocean.•Model results suggest that historical rates of recycling were…”
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Understanding the variability in the iron concentration of Antarctic krill: Understanding iron variation in Krill by Ratnarajah, Lavenia, Nicol, Stephen, Kawaguchi, So, Townsend, Ashley T., Lannuzel, Delphine, Meiners, Klaus M., Bowie, Andrew R.

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