Search results for "habitat patchiness"

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Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal…

2022

Gene flow shapes spatial genetic structure and the potential for local adaptation. Among marine animals with nonmigratory adults, the presence or absence of a pelagic larval stage is thought to be a key determinant in shaping gene flow and the genetic structure of populations. In addition, the spatial distribution of suitable habitats is expected to influence the distribution of biological populations and their connectivity patterns. We used whole genome sequencing to study demographic history and reduced representation (double-digest restriction associated DNA) sequencing data to analyse spatial genetic structure in broadnosed pipefish (Syngnathus typhle). Its main habitat is eelgrass beds…

habitat patchinesslarval driftFishesisolation by distancecoastalVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497PerciformesLarvamarine fishGeneticsgenomicsAnimalsMetagenomicsgene flowEcosystemEcology Evolution Behavior and SystematicsVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920comparative studyDemographyVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480
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Acquatina Lagoon: a model ecosystem to study community patterns

2013

Acquatina is a small lagoon ecosystem (0.45 km2) located on the Adriatic coast only 5 km north of Lecce (Italy). The lagoon has a freshwater input in the northern part and a connection with the sea at the south edge, being characterised by a latitudinal gradient of salinity and an internal patchiness of habitats. Here, we have used the lagoons as a model to study the influence of these sources of variation on the spatial distribution of macrobenthis and fish fauna, using both taxonomic and on taxonomic descriptors. Results showed a non random distribution of both species and functional traits of macroinvertebrate and fish fauna within the lagoon, despite the relatively small surface area. S…

Acquatina Lagoon habitat patchiness gradient of salinity functional traits macroinvertebrates fish fauna niche specialisation trophic energy partitioninglagoon macroinvertebrate fishspatial distribution
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