DOI: 10.5061/dryad.83bk3jb50
title: Detectability and realized diet

description: Our dataset provides records of encounters between our radio-equipped,
 videotaped Bothrops jararaca and Bothrops jararacussu and other vertebrate
 animals in an Atlantic Forest community of Brazil in the state of Sao
 Paulo. The data were recorded from 20 October 2022 to 10 June 2024 at Eta
 farm. 
description: \########METADATA####### Metadata.txt THIS DESCRIBES THE NAMES OF THE
 VARIABLES THAT WERE USED IN OUR ANALYSES AND THAT CAN BE FOUND IN THE
 EXCEL OR CSV. FILES SUBMITTED ALONG THE MANUSCRIPT TWO DIFFERENT CSV FILES
 HAVE BEEN SUBMITTED: 1. Encounters_YesNo.csv (this dataset allows to
 examine whether the snakes were encountered by an animal during
 videorecording and is used to characterized the factors explaining the
 occurence of an encounter between our snakes and other animals); \#SPEC =
 SPECIES OF SNAKE (BJA = *Bothrops jararaca*; BJU = *Bothrops jararacussu*)
 \#ID = SNAKE IDENTIFICATION NUMBER (ONE PER INDIVIDUAL) \#IDRELOC = THE
 RELOCATION NUMBER FOR A GIVEN SNAKE (NOT USED IN ANALYSES) \#VIDEOSEQ = A
 VARIABLE USED TO BREAK UP A GIVEN VIDEO AT A SPECIFIC RELOCATION FOR A
 SNAKE INTO DIFFERENT TIMEOFDAY SEGMENTS (NOT USED IN ANALYSES) \#TIMESTART
 = INDICATES THE TIME OF THE START OF THE VIDEO (NOT USED IN ANALYSES)
 \#TIMEEND = INDICATES THE TIME OF THE END OF THE VIDEO (NOT USED IN
 ANALYSES) \#DATESTART = INDICATES THE DAY OF THE START OF THE VIDEO (NOT
 USED IN ANALYSES) \#DATEEND = INDICATES THE DAY OF THE END OF THE VIDEO
 (NOT USED IN ANALYSES) \#ENCOUNTER = INDICATES WHETHER AN ANIMAL
 ENCOUNTERED THE SNAKE BEING VIDEOTAPED (No = 0; Yes = 1) \#ANIMENCOU =
 INDICATES THE TYPE OF ANIMAL THAT ENCOUNTERED OUR SNAKE (Aves, Mammalia,
 NA [NON OBSERVED; NOT USED IN THIS ANALYSIS) \#NOFANIMENCOU = INDICATES
 THE NUMBER OF ANIMALS THAT ENCOUNTERED OUR SNAKE DURING THIS VIDEO (NOT
 USED IN ANALYSES) \#SEASON = THE CATEGORICAL VARIABLE CONTRASTING THE DRY
 SEASON FROM THE WET SEASON \#TIMEOFDAY = THE CATEGORICAL VARIABLE
 INDICATING WHETHER THE ENCOUNTER OCCURRED DURING NIGHTIME (A-NIGHT) OR
 DAYTIME (B-DAY) \#CAMDIST = INDICATES WHETHER THE CAMERA DISTANCE TO THE
 SNAKE VARIABLE WAS RECORDED (Yes; No) \#CAMERADIST = INDICATES THE
 DISTANCE OF THE CAMERA FROM THE SNAKE (WHEN IT WAS RECORDED)
 \#CAMERADIST_SCALED = THE CONTINUOUS PREDICTOR INDICATING THE CAMERA
 DISTANCE TO THE SNAKE. THIS VARIABLE HAS BEEN Z-TRANSFORMED
 \#CAMDIST_SCALEDBJU = THE CONTINUOUS PREDICTOR INDICATING THE CAMERA
 DISTANCE TO THE SNAKE. THIS VARIABLE HAS BEEN Z-TRANSFORMED, AND INCLUDES
 ONLY DATA FROM *Bothrops jararacussu* \#TIMEFOV = INDICATES THE LENGTH OF
 THE VIDEO IN MINUTES \#TIMEFOVLOG = LOG-TRANSFORMED VIDEO LENGTH
 \#TIMEFOVLOG_SCALED = THE CONTINUOUS PREDICTOR INDICATING THE LENGTH OF
 THE VIDEO. THIS VARIABLE HAS BEEN LOG-TRANSFORMED AND Z-TRANSFORMED
 \#TIMEFOVLOG_SCALEDBJU = THE CONTINUOUS PREDICTOR INDICATING THE LENGTH OF
 THE VIDEO. THIS VARIABLE HAS BEEN LOG-TRANSFORMED AND Z-TRANSFORMED, AND
 INCLUDES ONLY DATA FROM *Bothrops jararacussu* 1. Encounters_Only_AM.csv
 (this dataset allows to model how various factors influenced whether the
 encountered animal was a bird or a mammal as well as detectability) \#SPEC
 = SPECIES OF SNAKE (BJA =*Bothrops jararaca*; BJU = *Bothrops
 jararacussu*) \#ID = SNAKE IDENTIFICATION NUMBER (ONE PER INDIVIDUAL)
 \#RELOCNUM = THE RELOCATION NUMBER FOR A GIVEN SNAKE (NOT USED IN
 ANALYSES) \#EVENTNUM = A NUMBER SPECIFYING AN EVENT OCCURING AT A
 RELOCATION NUMBER FOR A GIVEN SNAKE (NOT USED IN ANALYSES) \#DAY = THE
 DATE THE ENCOUNTER WAS RECORDED \#TIME= THE TIME AT WHICH THE ENCOUNTER
 WAS RECORDED \#SEASON = THE CATEGORICAL VARIABLE CONTRASTING THE DRY
 SEASON (=0) FROM THE WET SEASON (=1) \#TIMEOFDAY = THE CATEGORICAL
 VARIABLE INDICATING WHETHER THE ENCOUNTER OCCURRED DURING NIGHTIME (=0) OR
 DAYTIME (=1) \#DEA = INDICATES THE RECORDS FOR WHICH WE COULD SCORE
 DETECTABILITY OF SNAKES BY THE ENCOUNTERED ANIMAL \#PEA = INDICATES THE
 RECORDS THAT WE CONSIDERED AS A VALID PREY ENCOUNTER THAT COULD RESULT IN
 AN OFFENSIVE STRIKE FROM THE SNAKE (IE, A PREY ANIMAL WHICH CAME WITHIN
 40CM OF THE SNAKE) \#DISTSNAKE = THE CLOSEST DISTANCE BETWEEN THE
 SNAKE'S SNOUT AND THE ENCOUNTERED ANIMAL \#DISTSNAKE_CWC = THE
 CONTINUOUS PREDICTOR INDICATING THE CLOSEST DISTANCE THAT THE ENCOUNTERED
 ANIMAL GOT TO THE SNAKE. THIS VARIABLE HAS BEEN Z-TRANSFORMED
 ('OBSERVED VALUE - MEAN OF THE VARIABLE'/STANDARD DEVIATION OF
 THE VARIABLE)) \#DISTSNAKE_CWC_BJU = THE CONTINUOUS PREDICTOR INDICATING
 THE CLOSEST DISTANCE THAT THE ENCOUNTERED ANIMAL GOT TO THE SNAKE. THIS
 VARIABLE HAS BEEN Z-TRANSFORMED USING ONLY *Bothrops jararacussu* DATA
 \#ENCOUNTER = INDICATES WHETHER AN ANIMAL ENCOUNTERED THE SNAKE BEING
 VIDEOTAPED \#ANIMAL_CLASS = THE CATEGORICAL PREDICTOR INDICATING THE TYPE
 OF ANIMAL THAT ENCOUNTERED THE VIDEOED SNAKE (MAMMAL = 0; BIRD = 1)
 \#ANIMAL_ORDER = THE TAXONOMIC ORDER THE ANIMAL BELONG TO (NOT USED IN
 ANALYSES) \#TAXON_ID = THE IDENTIFICATION OF THE OBSERVED ANIMAL TO THE
 LOWEST TAXONOMIC LEVEL (NOT USED IN ANALYSES) \#ANIMTYPE = INDICATES
 WHETHER THE ENCOUNTERED ANIMAL IS A PREY, A PREDATOR, A NEIGHBOR, OR
 AMBIGUOUS \#STRIKE = INDICATES WHETHER THE SNAKE STRUCK AT THE ANIMAL (Yes
 or No: NOT USED IN ANALYSES, BUT REPORTED DESCRIPTIVELY IN THE TEXT OF THE
 MANUSCRIPT) \#STRIKENUM = INDICATES THE NUMBER OF STRIKES BY THE SNAKE
 WITHIN A GIVEN INTERACTION WITH A SINGLE ANIMAL (NOT USED IN ANALYSES BUT
 REPORTED HERE) \#STRIKESUCCESS = INDICATES WHETHER THE SNAKE SUCCESSFULLY
 STRUCK AT THE ANIMAL (0 = No, 1 = Yes; NOT USED IN ANALYSES, BUT REPORTED
 DESCRIPTIVELY IN THE TEXT OF THE MANUSCRIPT) \#SNAMOVT = THE CATEGORICAL
 PREDICTOR INDICATING WHETHER THE SNAKE MOVED IN RESPONSE TO THE
 APPROACHING ANIMAL (NO = 0; YES = 1) \#DETECTED = THE CATEGORICAL RESPONSE
 VARIABLE INDICATING WHETHER THE ANIMAL THAT ENCOUNTERED THE VIDEOED SNAKE
 DETECTED IT (NO = 0; YES = 1) \###########RCODES#############
 R_codes_-_Manuscript.txt - R script used to process these data