Table 1 Basic biological traits and individual measures of fix loss rate (FLR) during a set period of time; rate of fix in flight (RFF) and rate of perched fixes (RPF) (mean ± SD for the monthly FLR, RPF and RFF individual values) for 20 birds tagged with 1770 g solar-powered Argos’ satellite transmitters (PTT/GPS Microwave Telemetry, Inc. Columbia, MD, USA) all bought in 2005–2008.

From: Influence of individual biological traits on GPS fix-loss errors in wild bird tracking

Individuals

PTT

Sex

Age (years)

Territorial status

FLR

Time period

Usage time (years)

RPF

RFF

Adrian

PTT1

M

4

T (2012–2016)

0.30 ± 0.15

05/2009–01/2019

9.8

0.72 ± 0.26

0.28 ± 0.26

Andreia

PTT2

H

≥ 7

T (2009)

0.29 ± 0.15

03/2009–09/2009

0.6

0.47 ± 0.32

0.52 ± 0.32

Pocholo

PTT2

M

≥ 7

NT

0.16 ± 0.14

07/2011–01/2019

7.6

0.75 ± 0.23

0.25 ± 0.23

Batín

PTT3

M

 ≥ 7

T (2008)

0.29 ± 0.15

05/2008–04/2015

7.0

0.50 ± 0.33

0.50 ± 0.33

Cabó

PTT4

H

≥ 7

T (2007)

0.47 ± 0.15

11/2007–08/2008

0.7

0.53 ± 0.37

0.47 ± 0.37

Sofia

PTT4

H

 ≥ 7

NT

0.34 ± 0.20

11/2008–05/2012

3.6

0.71 ± 0.29

0.29 ± 0.29

Dulantz

PTT5

M

6

NT

0.22 ± 0.19

04/2013–10/2014

1.5

0.64 ± 0.30

0.37 ± 0.30

Elisabeth

PTT6

H

18

NT

0.30 ± 0.21

03/2015–01/2018

2.9

0.77 ± 0.23

0.23 ± 0.23

Garrotxa

PTT7

H

5

T (2012)

0.40 ± 0.29

05/2008–06/2013

5.2

0.61 ± 0.31

0.38 ± 0.31

Gervàs

PTT8

H

 ≥ 7

T (2007)

0.28 ± 0.19

05/2007–04/2009

1.9

0.69 ± 0.28

0.31 ± 0.28

Min

PTT8

M

5

NT

0.56 ± 0.30*

05/2009–08/2017

8.4

0.73 ± 0.27

0.27 ± 0.28

Isaac

PTT9

M

5

NT

0.19 ± 0.16

11/2010–01/2014

3.2

0.70 ± 0.26

0.29 ± 0.26

Jairo

PTT10

H

4

T (2014)

0.32 ± 0.17

11/2010–06/2016

5.6

0.76 ± 0.27

0.24 ± 0.27

Morreres

PTT11

M

1

NT

0.28 ± 0.15

11/2007–09/2012

4.9

0.62 ± 0.31

0.37 ± 0.31

Nicky

PTT12

M

5

T (2011)

0.64 ± 0.30*

06/2009–05/2017

8.0

0.53 ± 0.34

0.47 ± 0.34

Noah

PTT13

H

 ≥ 7

NT

0.48 ± 0.13

04/2008–09/2008

0.5

0.84 ± 0.23

0.16 ± 0.23

Revilla

PTT14

H

5

NT

0.33 ± 0.17

04/2013–11/2013

0.6

0.87 ± 0.17

0.13 ± 0.17

Sasi

PTT15

M

1

NT

0.61 ± 0.24*

08/2007–06/2008

0.9

0.78 ± 0.24

0.22 ± 0.24

Subfli

PTT16

H

4

T (2012)

0.33 ± 0.17

05/2008–04/2012

4.0

0.72 ± 0.28

0.28 ± 0.28

Tossal

PTT17

H

 ≥ 7

T (2006)

0.74 ± 0.27*

11/2006–12/2006

0.1

0.82 ± 0.22

0.18 ± 0.22

  1. In bold indicate transmitters (platform transmitter terminal, PTT) that were used on two different birds and * indicates when FLRs were equal or higher than 50%. For the territorial status (T territorial, NT non-territorial) the years of the beginning and ending (if any before 2019) are shown. The PTT FLRs were the same as the individual values of FLRs showed in this table, excepting for the case of the three PTTs that were reused: PTT2 presented a mean monthly FLR = 0.17 ± 0.14; PTT4 presented a mean monthly FLR = 0.36 ± 0.21 and PTT8 presented a mean monthly FLR = 0.50 ± 0.30*.
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