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| Mcfarlane, Ga; Ware, Dm; Thomson, Re; Mackas, Dl; Robinson, Clk. |
| The west coast of Vancouver Island is one of the most productive fishing grounds off western North America. In 1985, a multi-disciplinary study was initiated to provide long-term physical and biological data from this large marine ecosystem that could be used in the development of management strategies for commercial fish stocks. In this paper we review the physical, biological and fisheries oceanography of this system. We use this information to examine the linkages between these components, particularly changes in abundance of major fish species in relation to physical and biological oceanography. In addition, we present an overview of a model developed to synthesize our current knowledge about this ecosystem and the relative importance of climate... |
| Tipo: Text |
Palavras-chave: Ocean climate; Species interactions; Pacific hake; Pacific herring; Trophodynamics. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20452/18124.pdf |
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| Reynolds, Pamela L.; Stachowicz, John J.; Hovel, Kevin; Bostrom, Christoffer; Boyer, Katharyn; Cusson, Mathieu; Eklof, Johan S.; Engel, Friederike G.; Engelen, Aschwin H.; Eriksson, Britas Klemens; Fodrie, F. Joel; Griffin, John N.; Hereu, Clara M.; Hori, Masakazu; Hanley, Torrance C.; Ivanov, Mikhail; Jorgensen, Pablo; Kruschel, Claudia; Lee, Kun-seop; Mcglathery, Karen; Moksnes, Per-olav; Nakaoka, Masahiro; O'Connor, Mary I.; O'Connor, Nessa E.; Orth, Robert J.; Rossi, Francesca; Ruesink, Jennifer; Sotka, Erik E.; Thormar, Jonas; Tomas, Fiona; Unsworth, Richard K. F.; Whalen, Matthew A.; Duffy, J. Emmett. |
| Latitudinal gradients in species interactions are widely cited as potential causes or consequences of global patterns of biodiversity. However, mechanistic studies documenting changes in interactions across broad geographic ranges are limited. We surveyed predation intensity on common prey (live amphipods and gastropods) in communities of eelgrass (Zostera marina) at 48 sites across its Northern Hemisphere range, encompassing over 37 degrees of latitude and four continental coastlines. Predation on amphipods declined with latitude on all coasts but declined more strongly along western ocean margins where temperature gradients are steeper. Whereas insitu water temperature at the time of the experiments was uncorrelated with predation, mean annual... |
| Tipo: Text |
Palavras-chave: Biogeography; Latitude; Mesograzer; Predation; Seagrass; Species interactions; Temperature; Zostera. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00610/72246/71053.pdf |
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| Dadon, J.R.. |
| After a massive mortality of the dominant species (the clam Mesodesma mactroides) occurred in 1995, changes in the intertidal community in sandy beaches of Argentina were monitored. Eight sampling stations were established in a 40 km open stretch and samples were taken every October each year up to 2001. Biomass, density, size frequency distribution and mean growth rates for the most abundant species were analyzed. During the mortality event, only the benthic stages of M. mactroides were affected, their total mean biomass diminishing from 1,399 g to 2 g per running meter beach. Post-mortality recruitment was normal and the growth rates for the youngest cohorts were similar to those previously reported. After a two years’ lag, the wedge clam Donax... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Surf clams; Mesodesma mactroides; Donax hanleyanus; Sandy beaches; Benthos; Argentina; Species interactions; 42.73. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/214338 |
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| Lira, André Felipe de Araujo; Tizo-Pedroso, Everton. |
| Phoresy is a common dispersal behavior among pseudoscorpions. Neotropical pseudoscorpions, mainly from the North and Northeast regions of Brazil, are known for their dispersal relationships with beetles and flies. Here, we report phoretic association among nymphs of Sphenochernes camponoti (Chernetidae) and Fannia flies (F. pusio, F. yenhedi, and F. canicularis) (Diptera, Fanniidae). Twelve flies, each carrying a young pseudoscorpion, were collected in Caatinga vegetation in Pernambuco State, Brazil. Sphenochernes camponoti is a myrmecophilous pseudoscorpion that lives in Camponotus and Acromyrmex colonies. Despite its association with ants, this pseudoscorpion uses other winged arthropods to disperse. This is the first report of phoresy by Sphenochernes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Comportamento Animal pseudoscorpion; Dispersal strategies; Species interactions; Caatinga. Ecologia; Zoologia. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36373 |
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