@article {Gascon:2006zp,
	title = {Nematode assemblages and their responses to disturbances: a case study from the Emporda wetlands (northeastern Iberian Peninsula)},
	journal = {Journal of the North American Benthological Society},
	volume = {25},
	year = {2006},
	pages = {643-655},
	publisher = {NORTH AMER BENTHOLOGICAL SOC},
	address = {1041 NEW HAMSPHIRE STREET, LAWRENCE, KS 66044 USA},
	abstract = {The salt marshes of the Emporda wetlands are subjected to both physical variability, caused by hydrological fluctuations, and nutrient variability. We assessed which of these sources of variability most influenced nematode assemblages in 5 basins in the wetlands. One of these basins was permanently inundated, but the hydroperiods of the others were variable. Taxonomic composition and the Maturity Index, which is based on the ecological characteristics of nematodes (r- or K-strategists), were used to describe the assemblages. Variation decomposition analysis showed that nematode assemblages of the Emporda wetlands were more influenced by physical variability (18.2\% of explained variation), caused by changes in variables such as conductivity and granulometry, than by nutrient variability (3.4\% of explained variation). The Maturity Index of the assemblages was related to hydrological disturbance, but not to eutrophy. Cluster analysis based on taxonomic composition separated the permanent basin from the temporary basins. Nematode diversity and genus richness were significantly higher in the permanent basin than in the temporary basins. We conclude that the Maturity Index is valid for assessing hydrological disturbances in fluctuating Mediterranean environments, whereas assemblage parameters such as diversity and richness may not be because they responded to water permanence but not to other environmental factors associated with hydrologic variability.},
	keywords = {hydrological fluctuations, maturity Index, Mediterranean, meiofauna, nematodes, salt marshes, trophic level},
	author = {Gascon, Stephanie and Boix, Dani and Sala, Jordi and Quintana, Xavier D.}
}
@booklet {Gobin:2006sf,
	title = {Geographical variation in species diversity: A comparison of marine polychaetes and nematodes},
	volume = {330},
	year = {2006},
	note = {Journal of Experimental Marine Biology and Ecology},
	pages = {234-244},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {The aim of this study was to determine if marine species diversity was influenced by geographical location and whether it was higher at lower latitudes. Artificial collectors (made of nylon pan scourers) were employed as a standard substratum for the colonisation of marine invertebrates inhabiting subtidal (12 to 15 m) hard, rocky bottom substrata. These artificial substrate units (ASUs) were deployed at different latitudes including northern and southern temperate (South West England, UK and New Zealand), tropical (Trinidad and Tobago, West Indies) and polar (Signy Island, Antarctica) areas. The polychaetes, representative of the macrofauna and the nematodes, representative of the meiofauna fractions of the total invertebrate fauna collected were analysed. Neither polychaete nor nematode species diversity showed a trend based on latitude and each taxon showed a different pattern of diversity variation in relation to location. Polychaete diversity varied from area to area with highest species diversity occurring in the southern temperate (New Zealand). Nematode species diversity however was similar for the northern and southern temperate (UK and New Zealand) and the tropical area (Trinidad and Tobago). Thus, although the number of locations studied was limited, these data do not conform to a gradient in species diversity with latitude as has been previously supposed. The success of ASUs to compare species diversities in standardised habitat units augurs well for their future use in other ecological areas such as biogeographical or pollution studies. (C) 2006 Elsevier B.V. All rights reserved.},
	keywords = {artificial substrata, benthic species diversity, latitudinal gradients, nematodes, polychaetes},
	doi = {DOI 10.1016/j.jembe.2005.12.030},
	author = {Gobin, JF and Warwick, R. M.}
}
@article {Urban-Malinga:2006cl,
	title = {Comparison of nematode communities in Baltic and North Sea sublittoral, permeable sands - Diversity and environmental control},
	journal = {Estuarine Coastal and Shelf Science},
	volume = {70},
	year = {2006},
	pages = {224-238},
	publisher = {ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD},
	address = {24-28 OVAL RD, LONDON NW1 7DX, ENGLAND},
	abstract = {The structure of free-living nematode communities was investigated seasonally at two sandy locations representing typical shallow sublittotal, permeable environments of the North Sea and the Baltic Sea. At the Baltic study site the chlorophyll and organic carbon concentrations in the sediment were, on average, four times lower than at the North Sea. Highest nematode densities (1674-4100 ind. 10 cm(-2)) and a higher number of free-living nematode genera (66) were recorded in the North Sea (Baltic: 206-1227 ind. 10 cm(-2), 30 genera). Despite lower salinity and lower food availability the less dense and less diverse Baltic nematode community was similar in generic composition to the North Sea community. At the North Sea site, all trophic groups according to Wieser{\textquoteright}s classification were present with omnivores/predators, dominated by Viscosia, prevailing and followed by epistrate-feeders. In the food-limited Baltic community, non-selective deposit feeders (mainly Ascolaimus, Axonolaimus and Daptonema) and omnivores/predators dominated by Enoplolaimus were the most abundant trophic groups while selective deposit feeders were absent or their contribution was negligible. An analysis of the vertical generic distribution revealed highest diversity of the Baltic community in deeper sediment layers, below the sediment surface affected by ripple migration and near the interface of oxic and anoxic conditions. The diversity pattern in the North Sea sediment was more variable but generally showed high diversity in the upper centimetre of the sediment. These observations suggest that food supply and sediment oxygenation are the most important factors influencing the vertical pattern of nematode generic diversity in sublittoral, permeable sands. (c) 2006 Elsevier Ltd. All rights reserved.},
	keywords = {Baltic, diversity, nematodes, North Sea, permeable sands, sublittoral sands},
	doi = {DOI 10.1016/j.ecss.2006.06.020},
	author = {Urban-Malinga, Barbara and Hedtkamp, Stefanie I. C. and van Beusekom, Justus E. E. and Wiktor, Jozef and Weslawski, Jan Marcin}
}
