DOI: 10.5061/dryad.kprr4xhdj
title: Anthropogenic landscape features affect the ground habitat use of Penelope superciliaris (Cracidae), a large seed disperser bird in southeastern Brazil

description: The expansion of agriculture and forest plantations over tropical biomes
 has caused significant species loss, while others persist in remnant
 native areas and anthropogenic lands. Penelope superciliaris, a large seed
 disperser bird, inhabits human-modified landscapes; however, its habitat
 use is poorly known. We investigated how native land covers, distance to
 water sources, and anthropogenic landscape features affect the species’
 ground habitat use in disturbed and undisturbed areas of three landscapes
 in Southeastern Brazil. We expected the species to use the ground more in
 native areas and near water sources because of the higher habitat quality.
 We collected presence-absence data during two dry seasons at 205 sampling
 stations with camera traps. Using occupancy models, we calculated the
 cumulative AICc weights of covariates for occupancy (interpreted as
 probability of use, Ψ) and detection (interpreted as frequency of
 use, p) parameters. The proportion of managed forests negatively
 influenced the species’ frequency of use. The probability of use was
 higher when camera trap stations were located on unpaved roads. Model
 averaged prediction showed that the species uses about 56% of the
 landscapes. Our results suggest that intensively managed forests are not
 favorable or attractive habitats for the species. Unpaved roads associated
 with native vegetation edges may provide valuable habitats for the species
 during the dry season, possibly associated with movement and resource
 tracking. These findings may help guide conservation strategies in such
 modified landscapes, with caution in considering unpaved roads as secure
 habitats until further data on population abundance are available.
description: Rusty-margined guan (<em>Penelope superciliaris</em>)
 presence-absence data collected at 205 sampling stations located in
 southeastern Brazil with camera traps and covariates used to model species
 habitat use.
description: # Anthropogenic landscape features affect the ground habitat use of
 Penelope superciliaris(Cracidae),a large seed disperser bird in
 southeastern Brazil
 [https://doi.org/10.5061/dryad.kprr4xhdj](https://doi.org/10.5061/dryad.kprr4xhdj) ## Description of the data and file structure Detection data of the rusty-margined guan (*Penelope superciliaris*) collected from 205 sites located in southeastern Brazil, along with covariates used to model the species' habitat use through occupancy models. One camera trap was placed at each site. ### Files and variables #### File: Rusty-margined\_guan\_data\_covariates.csv **Description:**  ##### Variables sites;c1;c2;c3;c4;c5;c6;EdgeDist;Sug_12_5ha;ManF_12_5ha;OpenNat_25ha;ClosedNat_200ha;Edist;landscape;UnpRoad;DistW;InOut The dataset (.csv file) contains 206 lines. The first line includes the column names, and the remaining 205 lines represent the information from each sampled site. Columns c1, c2, c3, c4, c5, and c6 represent sampling occasions and contain species detection (1) or non-detection (0). The subsequent columns are the covariates, within the selected spatial scale when applicable, used to model the rusty-margined guan's habitat use. Covariates in the .csv file have the following names and measurement units: EdgeDist = Distance from the camera trap station to the nearest closed native vegetation edge (m); Sug_12_5ha = Sugarcane (%); ManF_12_5ha = Managed Forest (%); OpenNat_25ha = Open native vegetation (%); ClosedNat_200ha = Closed native vegetation (%); Edist = Mean linear distance from all pixels around the camera trap station within the spatial scale of 200 ha to the nearest farmhouse or village (m); landscape = Sampling stations located in (1) JES/LAES landscape or otherwise (0); UnpRoad = Camera trap station location on (1) unpaved roads, trails and discontinuities between native patches or native and agricultural areas, or off unpaved roads (0); DistW = Distance from the camera trap station to the nearest water source (m); InOut = Camera trap station located inside (1) or outside (0) protected areas of native vegetation. Empty cells in the column "c6" indicate missing data for this sampling occasion. ## Code/software Occupancy analyses were performed in R version 4.2.2. with the package “unmarked” (Fiske & Chandler, 2011; R Core Team, 2018).