Benthic marine mollusks of the Strait of Magellan, Chile (Polyplacophora, Gastropoda, Bivalvia): a historical review of Natural History

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 2 579 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.

Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Aldea C, Alcaino S, Novoa L, Rosenfeld S (2019): Benthic marine mollusks of the Strait of Magellan, Chile (Polyplacophora, Gastropoda, Bivalvia): a historical review of Natural History. v1. Universidad de Magallanes. Dataset/Occurrence. https://gbif-chile.mma.gob.cl/ipt/resource?r=moluscos-estrecho-magallanes&v=1.0

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Universidad de Magallanes. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 204130fb-8924-4601-b015-69411d9d7917.  Universidad de Magallanes publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Chile.

Mots-clé

Occurrence; literature; Magellanic Biogeographic Province; South Pacific; South Atlantic; species richness; benthos; Mollusca; Observation

Contacts

Couverture géographique

One of the most important channels in the Magellanic Province is the Strait of Magellan, where most historical reports of mollusks are focused. This extensive channel connects the Pacific and Atlantic Oceans and is considered the most important one of the province. It is influenced by water masses of the Pacific, Atlantic and Southern Oceans, and it possess several geological characteristics derived from the last glaciation (Antezana 1999).

Couverture taxonomique

To make the list of mollusks as complete as possible, information was gathered from all the available scientific publications that have sampled or reviewed benthic marine mollusks in the Magellanic Province, from the expedition of the HMS Beagle in the 19th century (King and Broderip 1832) to the present. A total of 323 articles were reviewed, of which 146 contained species within the Magellanic Province. The records and their respective geographical positions were entered into a spreadsheet structured with the Darwin Core Standard (Wieczorek et al. 2012), adjusted taxonomically according to the MolluscaBase (2019) and the revisions of classification and systematics of gastropods (Bouchet et al. 2017), bivalves (Nevesskaja 2009) and polyplacophorans (Sirenko 2006).

Couverture temporelle

Données sur le projet

Diversity of benthic molluscs and crustaceans in the Strait of Magellan: biogeography, nestedness and comparative endemism in the Magellan Biogeographic Province

Les personnes impliquées dans le projet:

Méthodes d'échantillonnage

To make the list of mollusks as complete as possible, information was gathered from all the available scientific publications that have sampled or reviewed benthic marine mollusks in the Magellanic Province, from the expedition of the HMS Beagle in the 19th century (King and Broderip 1832) to the present. A total of 323 articles were reviewed, of which 146 contained species within the Magellanic Province. The records and their respective geographical positions were entered into a spreadsheet structured with the Darwin Core Standard (Wieczorek et al. 2012), adjusted taxonomically according to the MolluscaBase (2019) and the revisions of classification and systematics of gastropods (Bouchet et al. 2017), bivalves (Nevesskaja 2009) and polyplacophorans (Sirenko 2006).

Description des étapes de la méthode:

1. The Strait of Magellan was divided into 420 quadrants of 6x6 minutes of latitude and longitude. The records located within this area were analyzed (Fig. 1), taking into account their georeference or approximate location. This analysis was developed using a tools for Google Earth (https://www.earthpoint.us), which transforms XLS extension files (Excel format) to KML (files that contains geographic data). In total, 108 articles provided records for the Strait of Magellan. Dubious records were counted and also the species that were recorded only once in history. Criteria were followed to determine which species records are doubtful: species that were cited once and later questioned in taxonomic revisions or never reported again; species that greatly exceed their distribution limit and do not appear in taxonomic revisions or alpha diversity studies; and species that have a huge geographical discontinuity and are not explained or figured in the article. A new matrix was elaborated with the Darwin Core standard from the database, with presence-absence data of each taxon per quadrant entered as 1 or 0, respectively. The quadrants with no species were removed from the matrix and the species considered doubtful and the taxa with imprecise locations were not included in the matrix. However, these were considered in the quantification of total richness. On the other hand, the records up to or above genus level (registered as "indet." or "sp.") were not considered as valid species for both species richness values and estimation models, except for those in which the author commented that it could be a new species.

Citations bibliographiques

1. Antezana T (1999) Hydrographic features of Magellan and Fuegian inland passages and adjacent Subantarctic waters. Scientia Marina 63(S1): 23–34.
2. Bouchet P, Rocroi J, Hausdorf B, Kaim A, Kano Y, Nützel A, Parkhaev P, Schrödl M Strong E (2017) Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia, 61 (1–2), 1–526.
3. King PP, Broderip WJ (1832) Description of the Cirripedia, Conchifera and Mollusca, in a collection formed by the officers of H.M.S. Adventure and Beagle employed between the years 1826 and 1830 in surveying the southern coasts of South America. Zoological Journal 5: 332–349.
4. MolluscaBase eds. (2019) MolluscaBase. Accessed at https://www.molluscabase.org on 2019-07-31.
5. Nevesskaja L (2009) Principles of systematics and the system of bivalves. Paleontological Journal, 43 (1): 1–11.
6. Sirenko BI (2006) New Outlook оn the System of Chitons (Mollusca: Polyplacophora). Venus, 65 (1–2): 27–49.
7. Wieczorek J, Bloom D, Guralnick R, Blum S, Döring M, Giovanni R, Robertson T, Vieglais D (2012) Darwin Core: An evolving community-developed biodiversity data standard. PloS ONE 7(1): e29715.

Métadonnées additionnelles