Distribution patterns of different age classes and sexes in a Tyrrhenian population of Talitrus saltator (Montagu)

Fallaci, M.; Colombini, I.; Lagar, M. C.; Scapini, Felicita; Chelazzi, L.

doi:10.1007/s00227-002-0928-0

Cited by 29 publications

(18 citation statements)

References 33 publications

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“…Bouslama et al (2009) showed that the temperature was the most important factor influencing the zonation; indeed, the increase of temperature induced the migration of T. saltator population from the top to the bottom of beach. This result was similar to that found by Fallaci et al (2003) that reported that the mean zonation of T. saltator was exclusively influenced by the temperature during the activity period. Marques et al (2003) have highlighted a positive correlation between temperature and the density or biomass of Talitrus saltator population.…”

Section: )supporting

confidence: 92%

Biodiversity of Talitridae family (Crustacea, Amphipoda) in some Tunisian coastal lagoons

et al. 2015

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Background: Although wetlands were remarkable habitats with their fauna and flora diversity, few studies have been devoted to the study of amphipod distribution in this type of environment. To study both qualitatively and quantitatively amphipod community, surveys were conducted during the spring season in ten coastal lagoons ranging from subhumid to arid bioclimatic stage. At each station, eight quadrats of 50 × 50 cm were randomly placed. Amphipods were preserved in alcohol 70°C. In the laboratory, the specimens collected were identified and counted. Meanwhile, analyses of organic matter, particle size, and heavy metals from the soil taken from each station were made. Results: A total of 1,340 specimens of amphipods were collected, and eight species belonging to Talitridae family were identified. Species richness ranges from one species collected in the supralittoral zone of El Bcherliya (Ghar El Melh lagoon) and eight species in the supralittoral zone of Bizerte lagoon. In this last station, the relative abundance of amphipods was significantly higher (36.04%, N = 483). In addition, the diversity indices of Simpson, Shannon-Weaver, and equitability shows that the highest species diversity characterizes this same station while the community was more balanced in opposite El Boughaz (Ghar El Melh lagoon) (J″ = 0.996). Conclusions: The spatial distribution of different amphipod species depends on edaphic (heavy metals, granulometry, organic matter) and climatic (temperature, humidity) factors.

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Section: )supporting

confidence: 92%

Biodiversity of Talitridae family (Crustacea, Amphipoda) in some Tunisian coastal lagoons

et al. 2015

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“…A high orientation capability, particularly in talitrid amphipods, permits zonal recovery in cases of abrupt displacement due to stressful conditions (Scapini et al 1996). Shifts in zonation between the resting (diurnal) and active (nocturnal) phase have also been shown in talitrid amphipods, with surface activity across-shore varying between adults and juveniles (Scapini et al 1992, Kennedy et al 2000, Cardoso 2002, Fallaci et al 2003. The main microclimatic factor modulating activity in these and other species is sand temperature (Scapini et al 1997).…”

Section: Spatial Structure and Patch Dynamicsmentioning

confidence: 91%

“…The presence of surf diatom accumulations has led to the definition of dissipative beaches as semi-closed ecosystems (sensu McLachlan 1980), in contrast to reflective beaches, defined as interfaces with low productivity, subsidized by organic inputs from the sea (Brown & McLachlan 1990). Whereas increased wave energy in temperate areas seems to cause increased productivity and biomass, stranded seagrass or algae (Colombini & Chelazzi 2003), or the presence of upwelling (Jaramillo et al 2001) can also add to sand beach energetics and biomass.…”

Section: Latitudinal Patternsmentioning

confidence: 99%

“…In a metapopulation context, the solid line shows the expected abundance within source populations (e.g. dissipative beaches), whereas the dashed line shows that sink populations in reflective beaches may be absent in poor recruitment years (after Caddy & Defeo 2003) morphodynamics, sediment moisture, temperature (Giménez & Yannicelli 2000, Colombini et al 2002, Defeo & Rueda 2002, Cardoso & Veloso 2003, and food availability, especially in supralittoral species which follow changes in drift line wrack levels (Marsden 1991, Colombini & Chelazzi 2003. Population variations in across-shore distribution may arise from physical and biological factors acting on different spatio-temporal scales.…”

Section: Spatial Structure and Patch Dynamicsmentioning

confidence: 99%

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Patterns, processes and regulatory mechanisms in sandy beach macrofauna: a multi-scale analysis

Defeo

McLachlan²

2005

Mar. Ecol. Prog. Ser.

415

328

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“…Mediterranean talitrids tend to have a female-biased sex ratio (Fallaci et al 2003;Pavesi and De Matthaeis 2009) even though precise data on O. montagui are unfortunately not available. Fallaci et al (2003) showed that in the sandhopper Talitrus saltator, males spend considerably more time than females on the surface, while females tend to stay close to their burrowing zone and to move less, hence reducing their chances to be dragged away by waves. If this was the case also for O. montagui, we could hypothesize that male contribution to the genetic make-up of populations might not be negligible.…”

Section: Population Genetic Structurementioning

confidence: 99%

Mitochondrial DNA and microsatellites reveal significant divergence in the beachflea Orchestia montagui (Talitridae: Amphipoda)

et al. 2012

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Talitrids are semiterrestrial crustacean amphipods inhabiting sandy and rocky beaches; they generally show limited active dispersal over long distances. In this study we assessed levels of population genetic structure and variability in the talitrid amphipod Orchestia montagui, a species strictly associated to stranded decaying heaps of the seagrass Posidonia oceanica. The study is based on six populations (153 individuals) and covers five basins of the Mediterranean Sea (Tyrrhenian, Ionian, Adriatic, Western and Eastern basins). Samples were screened for polymorphisms at a fragment of the mitochondrial DNA (mtDNA) coding for the cytochrome oxidase subunit I gene (COI; 571 base pairs) and at eight microsatellite loci. MtDNA revealed a relatively homogeneous haplogroup, which clustered together the populations from the Western, Tyrrhenian and Eastern basins, but not the populations from the Adriatic and Ionian ones; microsatellites detected two clusters, one including the Adriatic and Ionian populations, the second grouping all the others. We found a weak geographic pattern in the genetic structuring of the species, with a lack of isolation by distance at either class of markers. Results are discussed in terms of probability of passive dispersal over long distances through heaps of seagrass

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Distribution patterns of different age classes and sexes in a Tyrrhenian population of Talitrus saltator (Montagu)

Cited by 29 publications

References 33 publications

Biodiversity of Talitridae family (Crustacea, Amphipoda) in some Tunisian coastal lagoons

Biodiversity of Talitridae family (Crustacea, Amphipoda) in some Tunisian coastal lagoons

Patterns, processes and regulatory mechanisms in sandy beach macrofauna: a multi-scale analysis

Mitochondrial DNA and microsatellites reveal significant divergence in the beachflea Orchestia montagui (Talitridae: Amphipoda)

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