Eurasian otter (Lutra lutra) occurrence in Morocco

Javier Calzada1, Miguel Clavero2, Miguel Delibes2, Néstor Fernández3, Javier Calzada4

1 Universidad de Huelva, Departamento de Ciencias Integradas, Universidad de Huelva, Av/ Tres de Marzo s/n, 21071, Huelva, Spain; 2 Estación Biológica de Doñana-CSIC, Américo Vespucio s/n, 41092, Sevilla, Spain; 3 German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Puschstraße 4, 04103, Leipzig, Germany; 4 Universidad de Huelva, Departamento de Ciencias Integradas, 21071, Huelva, Spain

Corresponding author(s): Javier Calzada (javier.calzada@dbasp.uhu.es)Miguel Clavero (miguelito.clavero@gmail.com)Miguel Delibes (mdelibes@ebd.csic.es)Néstor Fernández (nestor.fdez@gmail.com), Javier Calzada (javier.calzada@dbasp.uhu.es)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Calzada J, Clavero M, Delibes M, Fernández N (2022): Eurasian otter (Lutra lutra) occurrence in Morocco. v1.1. Universidad de Huelva. Dataset/Samplingevent. https://doi.org/10.15470/xyzeiv https://doi.org/10.15470/xyzeiv

Abstract

Eurasian otter (Lutra lutra) occurrence in Morocco.
We collected data on otter presences and absences in 270 sites distributed across 34 Moroccan river basins, visited between April 2011 and April 2013. Data collected were used to study the natural and anthropogenic factors associated with otter occurrence in Morocco. More information in: Calzada, J., Clavero, M., Delibes, M., and Fernández, N. Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa. Biodivers Conserv (2022). https://doi.org/10.1007/s10531-022-02405-w

Keywords: Samplingevent, Morocco, Population conservation, Lutra lutra, Peripheral populations, Arid rivers

Data published through GBIF: https://ipt.gbif.es/resource?r=uhu_lutra

Taxonomic coverage

Taxonomic ranks
Species: Lutra lutra
Common names: Eurasian otter

Spatial coverage

General spatial coverage: Morocco, North Africa
Coordinates: 27°12'56''N and 36°6'8.56''N Latitude; 12°23'33.28''W and 0°5'16.41''W Longitude 

Temporal coverage: April 1, 2011 - April 30, 2013

Methods

Method step description: We applied the standard otter survey method, which consists in sampling up to 600 m along the river shore searching for otter signs (spraints, anal scent gland secretions and tracks). River shores were inspected by at least two experienced surveyors in each survey. A site was coded as positive, and the survey was finished, as soon as an otter sign was found, while it was considered negative when the 600 m-long transect was completed without finding any sign.
Study extent description: We collected data on otter presences and absences in 270 sites distributed across 34 Moroccan river basins, visited between April 2011 and April 2013.
Sampling description: The survey sites were selected a priori with the goal of covering as much of the country’s river network as feasible and being at least 30 km apart to uniformly surveying the whole region.

Datasets

Dataset description
Object name: Darwin Core Archive Eurasian otter (Lutra lutra) occurrence in Morocco
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://ipt.gbif.es/archive.do?r=uhu_lutra
Publication date of data: 2022-04-29
Language: English
Licences of use: Creative Commons Attribution (CC-BY) 4.0 License

Metadata language: English
Date of metadata creation: 2022-04-16
Hierarchy level: Dataset

References
Calzada, J., Clavero, M., Delibes, M., and Fernández, N. Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa. Biodivers Conserv (2022). https://doi.org/10.1007/s10531-022-02405-w https://doi.org/10.1007/s10531-022-02405-w