Results 31 to 40 of about 262,375 (207)

The ecological significance of extremely large flocks of birds

Ecology and Evolution, 2019
Population size is generally limited by resource availability during and outside the breeding season. Therefore, maximum size of flocks may provide important information on population regulation and the influence of diet and trophic level on maximal ...
Anders Pape Møller, Karsten Laursen
doaj   +1 more source

The trophic evolution of Lake Iseo as related to its holomixis

Journal of Limnology, 1999
Lake Iseo is undergoing a progressive deterioration in water quality, mainly due to eutrophication. This paper, based on measurements performed on the main tributaries and the outflow, considers the phosphorus, nitrogen and silica budget of the lake ...
Rosario MOSELLO, Michela ROGORA, Valeria MEZZANOTTE, Maria Cristina BRIZZIO, Letizia GARIBALDI   +4 more
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Feeding and growth variations affect δ13C and δ15N budgets during ontogeny in a lepidopteran larva

Peer Community Journal, 2023
Isotopes are widely used in ecology to study food webs and physiology. The fractionation observed between trophic levels in nitrogen and carbon isotopes, explained by isotopic biochemical selectivity, is subject to important within-trophic level ...
Charberet, Samuel M., Maria, Annick, Siaussat, David, Gounand, Isabelle, Mathieu, Jérôme   +4 more
doaj   +1 more source

Trait-mediated diversification in nematode predator–prey systems [PDF]

, 2011
Nematodes are presumably the most numerous Metazoans in terrestrial habitats. They are represented at all trophic levels and are known to respond to nutrient limitation, prey availability, and microbial resources.
Mulder, C., Helder, J., Vervoort, M.T.W., Vonk, J.A.   +3 more
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Trophic ecology of the Endangered Darwin's frog inferred by stable isotopes [PDF]

, 2018
Indexación: Scopus.Acknowledgements. We thank Dr. Mauricio González-Chang for his contribution to invertebrate identification and Sally Wren for the revision of an earlier version of the manuscript. We are also extremely grateful to Tomás Elgueta Alvarez
Alvarado-Rybak, M., Klarian, S., Molina-Burgos, B.E., Soto-Azat, C., Valenzuela-Sánchez, A.   +4 more
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Exploitation, secondary extinction and the altered trophic structure of Jamaican coral reefs [PDF]

, 2010
Coral reef communities of the Greater Antilles in the Caribbean have a long history of anthropogenic disturbance, driven by the exploitation for food of both vertebrate and invertebrate species.
Peter D. Roopnarine, Rachel A. Hertog
core   +1 more source

Emergent global patterns of ecosystem structure and function from a mechanistic general ecosystem model [PDF]

, 2014
Anthropogenic activities are causing widespread degradation of ecosystems worldwide, threatening the ecosystem services upon which all human life depends.
A Friedlander, A Hardisty, B Cho, B Collen, B-E Sæther, BJ McGill, C Mora, C Ward-Paige, CA Deutsch, CB Field, CD Thomas, CEL Ferreira, CH Sekercioglu, CM Duarte, CR McClain, D Griffiths, D Policansky, D Post, D Yates, Derek P. Tittensor, DG Jenkins, Drew W. Purves, DW Purves, E Jeppesen, E Macpherson, E Odum, E Siemann, EA Fulton, FS Chapin, G Krinner, GA Kaufman, GM Mace, H Cyr, H Stibor, HR Peinetti, J Cebrian, J Chase, J Gasol, J Merilä, JA Carton, JE Cohen, JH Brown, JL Frangi, JM Sunday, Jon Hutton, JP Rodríguez, JS Millar, Jörn P. W. Scharlemann, K Rose, KA Nagy, KA Schubert, KE Jones, KR Buck, L Tremblay-Boyer, LLM Fedigan, LW Oring, M Behrenfeld, M González-Suárez, Matthew J. Smith, MBJ Harfoot, ME Power, Michael B. J. Harfoot, Michel Loreau, MJ Coe, MJ Morgan, MJ Smith, MJ Vander Zanden, MK Litvak, MR Evans, MW McCoy, N Blakley, N Loeuille, NG Hairston, O Krüger, P Abrams, P Del Giorgio, PK Holland, R Alkemade, R Bustamante, R Gentile, R Meek, R Shine, R Shine, RE Ricklefs, RE Ricklefs, RJ Williams, RJ Williams, RW Sheldon, RW Wilson, S Díaz, S Fretwell, S Jain, S Jennings, S Jennings, S Meiri, S Sitch, SA Sandin, SD Pletcher, Stephen Emmott, T Newbold, T Sousa, Tim Newbold, TJ Case, TJ Webb, U Brose, V Christensen, Vassily Lyutsarev, W Sprules, X Irigoien, Y-J Shin   +109 more
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Trophic ecology of Acestrorhynchus falcirostris Cuvier, 1819 in island lakes on the lower stretch of the Solimões River, Amazon Basin

Brazilian Journal of Biology, 2022
The aim objective of this study was to determine the trophic ecology of juvenile and adult Acestrorhynchus falcirostris during the rising and flood (high-water) period in six island lakes adjacent to the Solimões River.
C. Lubich, J. Aguiar-Santos, F. Corrêa, C. E. C. Freitas, F. K. Siqueira-Souza   +4 more
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Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse

Frontiers in Marine Science
Monitoring programs that integrate both structural and functional ecosystem components play integral roles in ecosystem management and conservation planning.
Magnus Aune, Virginie Ramasco, Nadine Wells, Margaret Warren, Frédéric Cyr, Eric J. Pedersen, Eric J. Pedersen, Mariano Koen-Alonso, Mariano Koen-Alonso, Elena Eriksen, Raul Primicerio, Ulf Lindstrøm, Ulf Lindstrøm, Paul E. Renaud   +13 more
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Komposisi Isotop Stabil dan Trofik Level Kerang Kipas (Pectenidae: Chlamydinae sp.) dan Produsen Primer di Pulau Pari, Kepulauan Seribu, DKI Jakarta

Al-Kauniyah Jurnal Biologi, 2013
Scallop (Pectenidae: Chlamydinae sp.) is fauna habitat in seashore ecosystem and had commercial value commudity. The aims this study were to identify the main composition of stable isotopes, food sources, and trophic level from scallop and potential food
Mardiansyah Mardiansyah, Yusli Wardiatno, Tri Prartono   +2 more
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