Limestone biopitting in coastal settings: A spatial, morphometric, SEM and molecular microbiology sequencing study in the Mallorca rocky coast (Balearic Islands, Western Mediterranean).
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| Title: | Limestone biopitting in coastal settings: A spatial, morphometric, SEM and molecular microbiology sequencing study in the Mallorca rocky coast (Balearic Islands, Western Mediterranean). |
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| Authors: | Pomar, F.1 xisco.pomar@uib.cat, Gómez-Pujol, L.2, Fornós, J.J.1, Del Valle, L.1, Nogales, B.3,4 |
| Source: | Geomorphology. Jan2017, Vol. 276, p104-115. 12p. |
| Subjects: | Morphometrics, Microforms, Humidity, Scanning electron microscopy |
| Geographic Terms: | Balearic Islands (Spain) |
| Abstract: | Biological agency on rock coasts has been widely recognised over recent decades. This study deals with the distribution and morphometric characteristics of microforms features developed by cyanobacteria ( Rivularia sp.) on coastal limestone outcrops. These coastal microforms, known as biopits, have a small rounded basin shape a few millimetres in size. Environmental and geological data were collected from 100 random rock surface spots from Punta des Faralló cape (Mallorca, Western Mediterranean), from which major controls on the spatial distribution of biopits were established. Additionally, morphological data on 382 biopits determined the diagnostic morphometry of these features and their enlargement mechanisms. The results indicated that biopits exhibit a preferential location in shaded exposures and sheltered areas from prevailing winds and waves, avoiding direct insolation and desiccation. Other major controls on these microforms location and development were variables such as the rock surface slope and the distance to the coast (i.e. influence of splash and spray). Shadow spots displayed higher biopits density than other locations according to the patterns determined by environmental and geomorphological factors at the study site. Morphometric analyses showed that biopits have a width twice their depth. The average width of the microforms was 6.49 ± 2.40 mm and the average depth 2.46 ± 1.09 mm. Most frequently, the width/depth ratio was 2 or larger. This characteristic shape ratio was an additional factor that plays a role in maintaining the necessary humidity for microorganisms associated with biopits. [ABSTRACT FROM AUTHOR] |
| Copyright of Geomorphology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 119291131 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Limestone biopitting in coastal settings: A spatial, morphometric, SEM and molecular microbiology sequencing study in the Mallorca rocky coast (Balearic Islands, Western Mediterranean). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pomar%2C+F%2E%22">Pomar, F.</searchLink><relatesTo>1</relatesTo><i> xisco.pomar@uib.cat</i><br /><searchLink fieldCode="AR" term="%22Gómez-Pujol%2C+L%2E%22">Gómez-Pujol, L.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Fornós%2C+J%2EJ%2E%22">Fornós, J.J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Del+Valle%2C+L%2E%22">Del Valle, L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nogales%2C+B%2E%22">Nogales, B.</searchLink><relatesTo>3,4</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Geomorphology%22">Geomorphology</searchLink>. Jan2017, Vol. 276, p104-115. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Morphometrics%22">Morphometrics</searchLink><br /><searchLink fieldCode="DE" term="%22Microforms%22">Microforms</searchLink><br /><searchLink fieldCode="DE" term="%22Humidity%22">Humidity</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Balearic+Islands+%28Spain%29%22">Balearic Islands (Spain)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Biological agency on rock coasts has been widely recognised over recent decades. This study deals with the distribution and morphometric characteristics of microforms features developed by cyanobacteria ( Rivularia sp.) on coastal limestone outcrops. These coastal microforms, known as biopits, have a small rounded basin shape a few millimetres in size. Environmental and geological data were collected from 100 random rock surface spots from Punta des Faralló cape (Mallorca, Western Mediterranean), from which major controls on the spatial distribution of biopits were established. Additionally, morphological data on 382 biopits determined the diagnostic morphometry of these features and their enlargement mechanisms. The results indicated that biopits exhibit a preferential location in shaded exposures and sheltered areas from prevailing winds and waves, avoiding direct insolation and desiccation. Other major controls on these microforms location and development were variables such as the rock surface slope and the distance to the coast (i.e. influence of splash and spray). Shadow spots displayed higher biopits density than other locations according to the patterns determined by environmental and geomorphological factors at the study site. Morphometric analyses showed that biopits have a width twice their depth. The average width of the microforms was 6.49 ± 2.40 mm and the average depth 2.46 ± 1.09 mm. Most frequently, the width/depth ratio was 2 or larger. This characteristic shape ratio was an additional factor that plays a role in maintaining the necessary humidity for microorganisms associated with biopits. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Geomorphology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.geomorph.2016.10.014 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 104 Subjects: – SubjectFull: Morphometrics Type: general – SubjectFull: Microforms Type: general – SubjectFull: Humidity Type: general – SubjectFull: Scanning electron microscopy Type: general – SubjectFull: Balearic Islands (Spain) Type: general Titles: – TitleFull: Limestone biopitting in coastal settings: A spatial, morphometric, SEM and molecular microbiology sequencing study in the Mallorca rocky coast (Balearic Islands, Western Mediterranean). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pomar, F. – PersonEntity: Name: NameFull: Gómez-Pujol, L. – PersonEntity: Name: NameFull: Fornós, J.J. – PersonEntity: Name: NameFull: Del Valle, L. – PersonEntity: Name: NameFull: Nogales, B. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 0169555X Numbering: – Type: volume Value: 276 Titles: – TitleFull: Geomorphology Type: main |
| ResultId | 1 |
