DOI: 10.5281/zenodo.10651683
title: Data from: Distribution, ecology, and natural history of the recently rediscovered and critically endangered Santa Marta Sabrewing

description: Description for "RawData&media_Cphainopeplus" dataset.

 

Data from: Distribution, ecology, and natural history of the recently rediscovered and critically endangered Santa Marta Sabrewing

MS bioRxiv ID: 

Article DOI:

 

Please address questions to:

 

Esteban Botero D., Dr.Sc.

Director of Conservation Science

SELVA: Research for Conservation in the Neotropics

http://www.selva.org.co

https://www.selva.org.co/integrantes/esteban-botero-delgadillo/

e-mail: eboterod@gmail.com; esteban.botero@selva.org.co

 

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General information:

 

The whole dataset contains information on Santa Marta Sabrewing, a critically endangered (CR) hummingbird species endemic to the Sierra Nevada de Santa Marta, northern Colombia. Part of the data are of public access and consist of historical geographic records, while another part contains data collected from a focal study population of Santa Marta Sabrewing inhabiting along the La Macana stream, in the Guatapurí River Basin, Cesar Department. No exact coordinates from the focal population were included in this dataset or related documents/materials to protect these locations.

 

The data set is comprised by an Excel file (four spreadsheets) and two short video files that are explained below.

 

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Excel file "RawData_Cphainopeplus.xlsx" (created 12-02-2024)

 

 

********** Spreadsheet "1. ConfirmedLoc" **********

This spreadsheet contains metadata for the only five records of Santa Marta Sabrewing with confirmatory evidence.

 

The matrix contains the following variables:

 

VARIABLE DESCRIPTION

 

Locality: Name of the locality as described in museums or public databases.

Department: Name of department where the locality is found.

Latitude: Latitude in decimal degrees.

Longitude: Longitude in decimal degrees.

Record status: Confirmed (with confirmatory evidence) or unconfirmed (without or needing further examination).

Evidence: Evidence available to confirm the record.

Source: Source of the record.

Observations: Additional information for each row.

 

 

********** Spreadsheet "2. PointCountDat" **********

This spreadsheet contains information from bird counts aimed at detecting Santa Marta Sabrewing.

 

The matrix contains the following variables:

 

VARIABLE DESCRIPTION

 

ID: Point-count station ID.

Elevation: Elevation in m.

Native: Proportion (0–1) of native vegetation 100 m around the point coordinates.

Transformed: Proportion (0–1) of transformed vegetation 100 m around the point coordinates.

R1: First point-count replicate, with 0 = absence and 1 = presence.

R2: Second point-count replicate, with 0 = absence and 1 = presence.

R3: Third point-count replicate, with 0 = absence and 1 = presence.

R4: Fourth point-count replicate, with 0 = absence and 1 = presence.

 

 

********** Spreadsheet "3. Behav" **********

This spreadsheet contains information from ad libitum observations to characterize habitat associations and general behaviour of Santa Marta Sabrewing.

 

The matrix contains the following variables:

 

VARIABLE DESCRIPTION

 

Date: Date (day/month/year).

Hour: Hour in 24h format.

Elevation: Elevation in m.

No. Indiv.: No. of individuals of Santa Marta Sabrewing recorded.

Behaviour: Simple categories describing sabrewing behaviour.

Habitat: Simple categories describing habitat type where sabrewing was recorded.

 

 

********** Spreadsheet "4. HabitatNeu" **********

This spreadsheet contains estimated quantities for estimating Neu´s habitat proportions for Santa Marta Sabrewing. 

 

The matrix contains the following variables:

 

VARIABLE DESCRIPTION

 

Habitat: Simple categories describing habitat type where sabrewing was recorded.

Obs. Count: No. of Santa Marta Sabrewing records in each habitat type.

Hab. Prop.: Proportional area (0–1) of each habitat type in study area.

Expected Use: Expected No. of records based on each habitat's proportional area.

Sel. Ratio: Ratio between observed count and expected use.

Standard. Ratio: Standardized selection ratio (0–1).

 

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Video file "Campylopterus_threat.mp4" (modified 09-02-2024)

 

A slow-motion (~0.1 x) video showing a perching male Santa Marta Sabrewing involved in a persecution flight with a conspecific male aggressor. Footage was taken along the course of La Macana stream, near Chemesquemena village (Cesar Department, northern Colombia). Video: Elquin Toro © (reproduced with permission).

 

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Video file "Campylopterus_fight.mp4" (modified 09-02-2024)

 

A lek-attending male Santa Marta Sabrewing vocalizing in a perch and subsequently adopting a threatening body posture with wing and tail feathers extended towards a conspecific male intruder. Footage was taken along the course of La Macana stream, near Chemesquemena village (Cesar Department, northern Colombia). Video: Elquin Toro © (reproduced with permission).

 

 

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Methodological information (for more details, please see the related manuscript):

 

We conducted a thorough revision of scientific literature, international public databases, digital collections, and museum international/national bird collections in search of geographical records of Santa Marta Sabrewing.

 

Aside from the locality where the focal population was found (along the La Macana stream, near the Chemesquemena village, Cesar department), we also conducted three 4–7-day field expeditions to three other localities where Santa Marta Sabrewing could stably occur: San Lorenzo ridge (Magdalena Department); the upper Rioancho River basin, in Dibulla (La Guajira Department); Aracataca (Magdalena Department).

 

We projected Santa Marta Sabrewing's extent of occurrence (EOO) and area of occupancy (AOO). Our EOO and AOO projections were compared with the threshold values given under the IUCN’s criteria B1 and B2 (IUCN 2022). To this end, we delimited suitable habitat in ArcGIS Desktop 10 (ESRI 2011) using a vegetation layer from the CORINE Land Cover Methodology from Colombia, 2018, at 1:100,000 scale (IDEAM 2021), and a layer of biomes compiled in the public-access portal of the Land-use Planning Geographic Information System (SIG-OT) of the “Agustín Codazzi” Geographic Institute of Colombia (https://geoportal.igac.gov.co).

 

We conducted bird counts from September to December 2022 to estimate local abundance along the course of La Macana stream, near Chemesquemena village. Bird surveys were carried out using 20 georeferenced point-count stations (30 m radius), in which one observer searched for Santa Marta Sabrewing for 15 min. One count per station was conducted every month between 07:00 to 11:00s. Detection histories were analysed using the occu function in the unmarked package (Fiske and Chandler 2011) in R 4.0.2 (R Core Team 2020).

 

In the same locality, we also conducted ad libitum observations from July 2022 to October 2023 to describe different aspects of the species’ natural history. We conducted 2–3-day monthly visits to monitor individuals and territories year-round. We described feeding habits and aspects of social or breeding behaviour, including territorial and lekking displays, vocal activity, and lek conformation.

 

Lastly, we performed acoustic analysis focused on a description of Santa Marta Sabrewing territorial calls based on three males. We selected and analyzed a single high-quality recording per male of 20 seconds each. We used a Zoom H6 recorder coupled with a Rode NTG4 phantom-powered shotgun microphone. We visualized and analyzed the recordings using the Seewave package (Sueur et al. 2008) in R.

 

 

References:

 

ESRI (2011). ArcGIS Desktop: Release 10. Redlands, CA, USA: Environmental Systems Research Institute.

 

Fiske, I., and Chandler, R. (2011). “unmarked”: an R package for Fitting Hierarchical Models of Wildlife Occurrence and Abundance. J. Stat. Soft. 43: 1–23.

 

IDEAM (2021). Leyenda nacional de coberturas de la tierra. Metodología CORINE Land Cover adaptada para Colombia escala 1:100.000 (período 2018). Bogotá, Colombia: Instituto de Hidrología, Meteorología y Estudios Ambientales (IDEAM).

 

IUCN Standards and Petitions Committee (2022). Guidelines for using the IUCN Red List Categories and Criteria. Version 15. Prepared by the Standards and Petitions Committee. https://www.iucnredlist.org/documents/RedListGuidelines.pdf

 

R Core Team. (2020). R: a language and environment for statistical computing, version 4.0.2. R Foundation for Statistical Computing, Vienna, Austria, http://www.R.project.org

 

Sueur, J., Aubin, T., and Simonis, C. (2008). Seewave: a free modular tool for sound analysis and synthesis. Bioacoustics 18: 213–226.

 

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