Microgeographical shell variation in Littorina striata , a planktonic developing periwinkle

Wolf, Hans; Backeljau, Thierry; Medeiros, Renata; Verhagen, Ron

doi:10.1007/s002270050173

Cited by 23 publications

(27 citation statements)

References 23 publications

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“…Such different morphologies are thought to confer differential physiological tolerances to environmental stress (Lowell, 1984;McMahon, 1990;De Wolf et al, 1997) and could have also influenced the results observed. Further experimental work would be needed to disentangle the effects of predation and morphological-physiological plasticity in determining the patterns of distribution for P. candei.…”

Section: Patterns Of Microhabitat Use On Natural Shoresmentioning

confidence: 99%

Enhancing stocks of the exploited limpet Patella candei d’Orbigny via modifications in coastal engineering

Martins

Thompson

Neto

et al. 2010

Biological Conservation

108

103

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a b s t r a c tIt is widely recognised that microhabitats are important for a variety of marine organisms, yet this knowledge has rarely been applied in the construction of engineered structures as a means of enhancing biodiversity or populations of species at risk. Here we examined the influence of microhabitats on the distribution and survival of the exploited limpet Patella candei on natural shores before determining the effect of introducing such habitats to an artificial seawall. On natural shores individuals were associated with pits (a natural feature of volcanic rocky shores). Animals inhabiting pits showed reduced mortality and were smaller than those on open rock. Microhabitat utilisation was similar over the vertical range of distribution of P. candei. Following observation of natural patterns, we applied this knowledge by experimentally drilling pits at varying densities and sizes in a seawall that had been constructed with simple topographical complexity. Overall, the number of animals increased in areas with experimentally increased microhabitat area. There was evidence that this was the result of immigration (larger animals) but also of increased recruitment. This study demonstrates one cost-effective way of conciliating the need to protect our coastlines while promoting the conservation and stock enhancement of overexploited species.

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Section: Patterns Of Microhabitat Use On Natural Shoresmentioning

confidence: 99%

Enhancing stocks of the exploited limpet Patella candei d’Orbigny via modifications in coastal engineering

Martins

Thompson

Neto

et al. 2010

Biological Conservation

108

103

View full text Add to dashboard Cite

show abstract

“…The periwinkle Littorina striata King & Broderip, 1832, is one such polymorphic planktonic developing 0 Inter-Research 1998 Resale of full article not permitted prosobranch (Rosewater 1981, Reid 1996, De Wolf et al 1997. The species produces 2 major shell morphotypes: one with a spirally sculptured, nodulose shell, the other having a nearly smooth shell without nodules (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The species produces 2 major shell morphotypes: one with a spirally sculptured, nodulose shell, the other having a nearly smooth shell without nodules (e.g. Rosewater 1981, Reid 1996, De Wolf et al 1997. Recent attempts to describe and interpret the microscale patterning and functionality of this polymorphism (Britton 1995, Vedel & Depledge 1995, De Wolf et al 1997 suggested that at least part of the shell variability shows ecological correlates (Britton 1995, De Wolf et al 1997.…”

Section: Introductionmentioning

confidence: 99%

“…Rosewater 1981, Reid 1996, De Wolf et al 1997. Recent attempts to describe and interpret the microscale patterning and functionality of this polymorphism (Britton 1995, Vedel & Depledge 1995, De Wolf et al 1997 suggested that at least part of the shell variability shows ecological correlates (Britton 1995, De Wolf et al 1997. Earlier authors even went so far as to suggest that both morphotypes represent dfferent species (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…This is equivalent to asking whether both morphotypes share a common gene pool. If so, it remains to be investigated how they maintain their morphological integrity, differentiation and ecological patterning (De Wolf et al 1997).…”

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal genetic structure and gene flow between two distinct shell morphs of the planktonic developing periwinkle Littorina striata (Mollusca:Prosobranchia)

Wolf¹,

Backeljau²,

Verhagen³

1998

Mar. Ecol. Prog. Ser.

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The planktonic developing periwinkle Littonna striata produces both nodulose and smooth shells, which were onginally regarded as 2 separate species. Although both morphs occur microsympatrically, their distr~bution IS not random. Nodulose shells predominate at wave-sheltered sites, whereas smooth shells are more common at wave-exposed sites The degree of genetic slmlarity between the 2 shell types and their mcrogeographic spatio-temporal genetic structuring were investigated using allozyme electrophoresis. This indicated that-(1) both morphs share a common gene pool, (2) gene flow between populations is high and of comparable magnitude to gene flow between both morphs, (3) the population genetic structure of L. striata remains stable over a sampling period of 3 yr, and (4) genetic and morphological distances between populations are not correlated. These results thus confirm the conspecific status of the 2 shell types and suggest that shell variabLity and spatial patterning in L. striata persist in the presence of intense gene flow.

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Disentangling the genetic and morphological structure of Patella candei complex in Macaronesia (NE Atlantic)

Faria

Martins

Pita

et al. 2017

Ecology and Evolution

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The uptake of natural living resources for human consumption has triggered serious changes in the balance of ecosystems. In the archipelagos of Macaronesia (NE Atlantic), limpets have been extensively exploited probably since islands were first colonized. This has led to profound consequences in the dynamics of rocky shore communities. The Patella candei complex includes various subspecies of limpets that are ascribed to a particular archipelago and has been the focus of several taxonomic surveys without much agreement. Under a conservational perspective, we apply morphometric and genetic analyses to test subspecies boundaries in P. candei and to evaluate its current population connectivity throughout Macaronesia (Azores, Madeira, and Canaries). A highly significant genetic break between archipelagos following isolation by distance was detected (F ST = 0.369, p < .001). Contrastingly, significant genetic differentiation among islands (i.e., Azores) was absent possibly indicating ongoing gene flow via larval exchange between populations. Significant shell‐shape differences among archipelagos were also detected using both distance‐based and geometric morphometric analyses. Adaptive processes associated with niche differentiation and strong barriers to gene flow among archipelagos may be the mechanisms underlying P. candei diversification in Macaronesia. Under the very probable assumption that populations of P. candei from each archipelago are geographically and/or ecologically isolated populations, the various subspecies within the P. candei complex may be best thought of as true species using the denomination: P. candei in Selvagens, Patella gomesii in Azores, Patella ordinaria in Madeira, and Patella crenata for Canaries. This would be in agreement with stock delimitation and units of conservation of P. candei sensu latu along Macaronesia.

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Microgeographical shell variation in Littorina striata , a planktonic developing periwinkle

Cited by 23 publications

References 23 publications

Enhancing stocks of the exploited limpet Patella candei d’Orbigny via modifications in coastal engineering

Enhancing stocks of the exploited limpet Patella candei d’Orbigny via modifications in coastal engineering

Spatio-temporal genetic structure and gene flow between two distinct shell morphs of the planktonic developing periwinkle Littorina striata (Mollusca:Prosobranchia)

Disentangling the genetic and morphological structure of Patella candei complex in Macaronesia (NE Atlantic)

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