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|Title:||Distribution and habitat use patterns of benthic decapod crustaceans in shallow waters: A comparative approach|
|Abstract:||Secondary succession following land abandonment, represented by a chronosequence of 15 old fields (0-80 years old) and two old-growth forests, was studied in the tropical montane cloud forest region of Veracruz, Mexico. The objective was to determine successional trajectories in forest structure and species richness of trees ?5 cm DBH, in terms of differences in seed dispersal mode, shade tolerance, and phytogeographical affinity. Data were analyzed using AIC model selection and logistic regressions. Mean and maximum canopy height reached values similar to old-growth forest at 35 and 80 years, respectively. Species richness and diversity values were reached earlier (15 and 25 years, respectively) while basal area and stem density tended to reach old-growth forest values within 80 years. Along the chronosequence, the proportion of species and individuals of wind-dispersed trees declined, that of bird dispersed small seeded trees remained constant, while that of gravity and animal dispersed large seeded trees increased; shade-intolerant species and individuals declined, while intermediate and shade-tolerant trees increased. Shade-tolerant canopy trees were rare during succession, even in the old-growth forest. Tropical tree species were more frequent than temperate ones throughout the chronosequence, but temperate tree individuals became canopy dominants at intermediate and old-growth forest stages. " 2011 Springer Science+Business Media B.V.",,,,,,"10.1007/s11258-011-9980-5",,,"http://hdl.handle.net/20.500.12104/40729","http://www.scopus.com/inward/record.url?eid=2-s2.0-84856267830&partnerID=40&md5=4f361067faf05b09af251e1342070280",,,,,,"2",,"Plant Ecology",,"339|
353",,"213",,"Scopus",,,,,,"Chronosequence; Forest structure; Functional traits; Mexico; Temperate affinity; Tropical affinity; Veracruz",,,,,,"Dispersal mode, shade tolerance, and phytogeographical affinity of tree species during secondary succession in tropical montane cloud forest",,"Article" "42526","123456789/35008",,"Pallas, A., Departamento de Biologia Animal, Biologia Vegetal Y Ecologia, Universidad de A Coruña, Campus de A Zapateira s/n, A Coruña 15071, Spain; García-Calvo, B., Departamento de Biologia Animal, Biologia Vegetal Y Ecologia, Universidad de A Coruña, Campus de A Zapateira s/n, A Coruña 15071, Spain; Corgos, A., Departamento de Biologia Animal, Biologia Vegetal Y Ecologia, Universidad de A Coruña, Campus de A Zapateira s/n, A Coruña 15071, Spain; Bernardez, C., Centro de Ecologia Costera, Centro Universitario de la Costa Sur, Universidad de Guadalajara, V. G. Farias 82, S. Patricio-Melaque, Jalisco 48980, Mexico; Freire, J., Departamento de Biologia Animal, Biologia Vegetal Y Ecologia, Universidad de A Coruña, Campus de A Zapateira s/n, A Coruña 15071, Spain",,"Pallas, A.
Freire, J.",,"2006",,"Coastal areas are widely considered to be nurseries for many marine species. New approaches to this concept take into account interactions among environmental variables and ecological variation related to geographical location, as well as the complex life cycles of marine invertebrates. We present a comparative approach to assessing the association between environmental variables and patterns of distribution and the habitat use of benthic decapod species in coastal areas. Through this approach we infer which processes underlie these patterns and identify appropriate habitat-use models. An intensive fine-grain sampling design was used to account for environmental gradients occurring at different spatial scales (defined by substrate type, depth, exposure and geographical location) in a temperate oceanic bay (Ria de A Coruña, NW Spain). A high proportion of juveniles occurred in most populations, but our results did not allow us to generally designate coastal areas as nurseries, except for a few species, which showed marked spatial segregation between juveniles and adults. Coastal habitats are predominantly used as nurseries by juveniles of larger species, while, for smaller decapods, they seem to constitute habitats for the entire population. Larval transport may account for mesoscale distribution patterns, while microscale distribution may respond to the complex interaction among different processes, i.e. habitat selection at settlement, differential mortality among habitats, post-settlement dispersal and ontogenetic habitat shifts. Sandy substrates were characterised by low-diversity communities dominated by hermit crabs. In rocky bottom communities, variability in spatial patterns was mostly related to substrate type and geographical location. Caridean shrimps had higher densities on flat rock surfaces, with similar juvenile and adult patterns. Anomuran species occurred mainly on cobbles. Distribution patterns of brachyurans varied among species, but did not change greatly from juveniles to adults. " Inter-Research 2006.
|Appears in Collections:||Producción científica UdeG|
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