Spatial patterns in the population structure of the whelk &lt;em&gt;Stramonita haemastoma&lt;/em&gt; (Linnaeus, 1766) (Gastropoda: Muricidae) in the Canarian Archipelago (eastern Atlantic)

Ramírez, Raquel; Tuya, Fernando; Haroun, Ricardo

doi:10.3989/scimar.2009.73n3431

Cited by 18 publications

(15 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Stramonita haemastoma preferred stretches closer to the lower shore, as also observed in previous studies (Rilov et al, 2001;Calil, 2007). This strategy of inhabiting areas with longer submersion times probably minimises the effects of thermal variation and desiccation.…”

Section: Discussionsupporting

confidence: 72%

“…The presence of holes and crevices, especially in N1, presumably confers protection from predators. Rilov et al (2001) also observed higher abundances of S. haemastoma in the lower intertidal zone on the coast of Israel, and attributed this to greater availability of food and shelter. In this study, protection against the physiological stress caused by temperature variations explains why there were fewer individuals of S. haemastoma at the upper level of both sampling sites, where the temperature varies more than at the lower level.…”

Section: Discussionmentioning

confidence: 94%

“…These animals are among the main prey of this species (Duarte and Holler, 1987) and their presence probably influences the spatial distribution of this gastropod. As do other predatory gastropods, S. haemastoma inhabits environments rich in potential food (Morgan, 1985;Rilov et al, 2001Rilov et al, , 2004Ramirez et al, 2009). The association of several groups of animals with S. haemastoma shows the importance of the species in this environment, since it is an important agent in the food chain in rocky intertidal areas and in cultivated oysters (Butler, 1985;Ferreira and Magalhães, 2004;Nascimento and Pereira, 2004;Watanabe and Young, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…It is abundant in rocky intertidal zones, inhabiting preferentially the middle (Ramirez et al, 2009) and subtidal levels (Rilov et al, 2001). It can be found on oyster reefs, submerged wrecks, and buoys in these regions (Thomé et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Spatial-temporal distribution and recruitment of Stramonita haemastoma (Linnaeus, 1758) (Mollusca) on a sandstone bank in Ilhéus, Bahia, Brazil

Santos

Boehs

2011

Braz. J. Biol.

View full text Add to dashboard Cite

We examined aspects of the population ecology of the gastropod Stramonita haemastoma at Ilhéus, Bahia, Brazil. We collected monthly from October 2007 through September 2008 on a sandstone bank 1.5 km long, on which two points and two sampling levels were defined. We took five previously randomised replicates at each level, using a square enclosing an area of 0.0625 m 2 . The snails were photographed, counted, and measured at the site. Both recruits and other individuals in the population preferentially inhabit the regions closer to the lower shore, where they are submerged for longer periods and are less subject to physiological stresses caused by temperature variation and desiccation. The cracks and holes in the bank serve as refuges and places for S. haemastoma to lay their egg capsules. Recruits were observed throughout the study period, and the population showed continuous reproduction.Keywords: ecology, gastropod, intertidal, macrobenthos. Distribuição espaço-temporal e recrutamento de Stramonita haemastoma (Linnaeus, 1758) (Mollusca) em um banco arenítico de Ilhéus, Bahia, Brasil ResumoNeste estudo objetivou-se analisar aspectos da ecologia populacional do gastrópode Stramonita haemastoma em Ilhéus (Bahia). As amostragens foram realizadas mensalmente, entre outubro de 2007 e setembro de 2008, em um banco arenítico com 1,5 km de extensão, no qual foram estabelecidos dois pontos e dois níveis amostrais. Em cada nível foram feitas cinco repetições previamente aleatorizadas, utilizando-se um delimitador quadrado com 0,0625 m 2 de área. Os animais foram fotografados, quantificados e mensurados no local. Foi evidenciado que tanto recrutas quanto os demais indivíduos da população habitam preferencialmente as faixas mais próximas do infralitoral, onde, em função do maior tempo de submersão, os animais ficam menos sujeitos a estresses fisiológicos decorrentes de variação térmica e dessecação. Por apresentarem fendas e buracos, esses locais servem ainda de refúgio e ambiente para posturas de S. haemastoma. Foram observados recrutas ao longo de todo o período, evidenciando reprodução contínua.

show abstract

Section: Discussionsupporting

confidence: 72%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spatial-temporal distribution and recruitment of Stramonita haemastoma (Linnaeus, 1758) (Mollusca) on a sandstone bank in Ilhéus, Bahia, Brazil

Santos

Boehs

2011

Braz. J. Biol.

View full text Add to dashboard Cite

show abstract

“…This predatory whelk with planktonic larvae (Scheltema 1971) preferentially inhabits rocky shores (Rilov et al 2001, Ramirez et al 2009), where it preys on animals such as oysters, barnacles, gastropods, and bivalves (Rilov et al 2004, Lopez et al 2010). …”

Section: Abstract: Evolution On Islands · Predatory Impact · Island mentioning

confidence: 99%

Defense in shallow-water invertebrates at oceanic islands vs. the mainland coast

Cruz¹,

Calado²

2012

Aquat. Biol.

View full text Add to dashboard Cite

Islands are often considered natural laboratories and thus excellent models for testing theories on adaptive radiation. To date, most studies have focused on terrestrial ecosystems. In a comparative study between island populations and their mainland counterparts, Vermeij (2004, Frontiers of biogeography, p 239−254), using published data, argued that shallow-water marine shelled molluscs are better defended against predation along continents than on oceanic islands, possibly due to a lower predation pressure on islands. Here we evaluate this hypothesis, using shallow-water marine gastropods from the Azores and the Portuguese mainland as models (the island species Columbella adansoni and the mainland species C. rustica, and populations of Stramonita haemastoma from both study areas). Pleistocene S. haemastoma fossils from the Azores were also analyzed. Specimens were measured for defense-related shell characteristics and compared (island vs. mainland populations) using principal component analysis and Mann-Whitney tests. The results revealed that Azorean C. adansoni possess significantly thicker and wider shells with a narrower aperture than mainland C. rustica, which present a lighter shell and a higher spire. Comparisons of island and mainland S. haemastoma indicate that the Azorean population is lighter, with a wider aperture, thicker lip, and lower spire. The comparison of Azorean S. haemastoma fossils and extant specimens showed significantly narrower apertures and thicker lips in Pleistocene shells. Despite some evidence supporting the arguments used by Vermeij, our analysis failed to conclusively support this hypothesis as a whole. KEY WORDS: Evolution on islands · Predatory impact · Island biogeography · Columbella adansoni · Columbella rustica · Stramonita haemastomaResale or republication not permitted without written consent of the publisher Aquat Biol 15: 159-166, 2012 160 In this context, Vermeij believes that the major difference between terrestrial and marine biota lies in the abundance of high-level predators, which in the sea are little constrained by dispersal. Vermeij formulates a hypothesis, which we will call 'Vermeij's hypothesis', wherein marine shallow-water organisms possess fewer defenses against predators around oceanic islands than along mainland coasts, probably due to lower predatory pressure.This hypothesis was based on the comparison of structural shell characteristics such as length and projection of the shell spire, thickness of the shell, and size and degree of occlusion of the shell aperture. Vermeij noted that, in general, shallow-water molluscs from oceanic islands had: (1) a higher and more protruding spire, (2) a thinner shell, and (3) a larger and less occluded shell aperture compared to their counterparts on the mainland. These results were interpreted as a reduced defense capacity of island inhabitants, which he suggested to be caused by 'a reduced selection due to predators breaking or entering gastropod shells' (Vermeij 2004) of island species when compar...

show abstract

The Pleistocene of Rabat (Morocco): Mollusks, Coastal Environments and Human Behavior

et al. 2017

View full text Add to dashboard Cite

Spatial patterns in the population structure of the whelk <em>Stramonita haemastoma</em> (Linnaeus, 1766) (Gastropoda: Muricidae) in the Canarian Archipelago (eastern Atlantic)

Cited by 18 publications

References 36 publications

Spatial-temporal distribution and recruitment of Stramonita haemastoma (Linnaeus, 1758) (Mollusca) on a sandstone bank in Ilhéus, Bahia, Brazil

Spatial-temporal distribution and recruitment of Stramonita haemastoma (Linnaeus, 1758) (Mollusca) on a sandstone bank in Ilhéus, Bahia, Brazil

Defense in shallow-water invertebrates at oceanic islands vs. the mainland coast

The Pleistocene of Rabat (Morocco): Mollusks, Coastal Environments and Human Behavior

Contact Info

Product

Resources

About