Biodiversity Ocurrences in Cuenca Marina Austral- 1 on-shore during Diagnosis campaigns

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme dune Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant quensemble dun ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 136 enregistrements.

1 tableurs de données dextension existent également. Un enregistrement dextension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre denregistrements dans chaque tableur de données dextension est illustré ci-dessous.

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Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

BIOSUM S.R.L, Gómez Arismendi M S, Austral S.A T (2025). Biodiversity Ocurrences in Cuenca Marina Austral- 1 on-shore during Diagnosis campaigns. Version 1.1. TotalEnergies. Samplingevent dataset. https://ipt.mincyt.gob.ar/resource?r=diag-biosum-se&v=1.1

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est TotalEnergies. 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 lUUID GBIF suivante : a2f4e693-5e2d-46af-8359-aef486460583.  TotalEnergies publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec lapprobation du GBIF France.

Mots-clé

Sampling event; Observation; diagnosis; baseline studies; aves; mammals; plants

Contacts

Couverture géographique

These observations were made mainly in the natural area sorrounding the Río Cullen site.

Couverture taxonomique

Given the fact that it was a biodiversity diagnosis survey, there are observations from a variety of Phylum, from Vertebrates to Plants. It was a survey to have general information from the biodiversity in the area.

Couverture temporelle

Méthodes déchantillonnage

Vegetation: It was surveyed through a systematic sampling: using the Braun-Blanquet technic (Mueller Dumbois & Ellenberg, 1974; Braun-Blanquet, 1979) for cover percenteage estimation. The quadrant extent was 5x5 m. All the quadrants were georeferenced. The technic consists of identifying all the species present within the quadrant determined and assigning a cover percenteage value for each of them. Cover perceanteage is a variable that allows abundance estimation. Mammals and herpetofauna : the survey was made using an stratified sampling due to the high environmental heterogeneity in the area. The area was divided in three sectors: A, B and C and each sector was stratified with the biotic units present: Coast, Mallin, Murtillar, Grassland, Shrubland and interior lake). In each strat, a systematic sampling has been made. using two different methods: vehicular linear transects census, for direct observation during a continuous route and with length contol in the internal circuits, and observation stations census with time control. It was assumed that all the individuals present in both the transects and the observation stations were counted and that all observations were independent. 51 vehicular transects were defined: 19 transects for Sector A, 22 for Sector B and 10 for Sector C. They were at least 1km long but not more than 1,5 km and were travelled at a 40 km/h speed. Moreover, 46 observation stations were defined: 18 for Sector A, 17 for Sector B and 11 for Sector C. In this observation stations: both transects and observation points were made. Aves: For this survey, the Brandolin counting method was developed during 10 minutes. This time span was defined to avoid bias from gregarious birds or those who move very actively and long enough to detect solitary birds, less conspicuous and with discontinuos vocalization. In each sampling station, transects were also defined, with the objective of identifying individual that may be hidden. over 25 meters from the station central point. In the dataset, there are some abbreviations regarding the different sampling spots. Here the specification of what each abbreviaton means: E = Wild fauna monitoring station (comes from Estación de monitoreo de fauna silvestre in spanish) C = Vegetation sampling cuadrant (comes from Cuadrante de muestreo de vegetación in spanish) VP = Vantage Point T =Transect TV = Vehicular transect (comes from Transecta Vehicular in spanish)

Description des étapes de la méthode:

1. Vegetation: The survey begun by defining the 49 quadrants and then, the especies identification and cover estimation was made. In each of the 46 sampling stations, a walking transect ranging between 200 to 500 m long was made, looking for active individuals and lizard activity traces. The individual counting in each transect was made through visual identification, following the Ojasti and Dallmeier criteria (2000) During the walking of the transects, lizard activity signals and presence traces were looked for. Those signals can be presence of caves and stool. Aves: The counting begun when arriving at the site, leaving 1 minute for habituation. Then, the register begun for the time already specified. (Salinas et al, 2007)

Métadonnées additionnelles