Difference between revisions of "Turtle Sense / 2015 Season Results"
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We monitored nests at the Cape Hatteras National Seashore during 2015. For detailed day-by-day records of our predictions, please go to [https://groups.google.com/forum/?pli=1#!forum/turtlesense our Google Group] | We monitored nests at the Cape Hatteras National Seashore during 2015. For detailed day-by-day records of our predictions, please go to [https://groups.google.com/forum/?pli=1#!forum/turtlesense our Google Group] | ||
− | + | ==Graphs of monitored nests== | |
+ | ''Note: The x-axis is the number of days since the nest was discovered. This number is likely off by a few hours. Nests are discovered during turtle patrol and a sensor is installed in the nest at that time and registered in the database. Since the nest was laid sometime during the previous night, the exact incubation time might be off. Similarly, the date that emergence was first observed is often the morning after when the turtle patrol notes tracks in the sand. Both of these errors tend to cancel each other out. Note that NH002 is off by 8 days because it was not registered until 8 days after the nest was discovered.'' | ||
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|[[File:2015 - NH007R after emergence.png|250px]]||NH007R||AA0009||---||---||July 20|| There was too much noise in this nest to be able to make any predictions. Very early -- day 51. 20+ emerged the following day. No obvious explanation for all the noise. The sensor had moved from its installation position in the nest. Might be a faulty sensor. | |[[File:2015 - NH007R after emergence.png|250px]]||NH007R||AA0009||---||---||July 20|| There was too much noise in this nest to be able to make any predictions. Very early -- day 51. 20+ emerged the following day. No obvious explanation for all the noise. The sensor had moved from its installation position in the nest. Might be a faulty sensor. | ||
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− | |[[File:2015 - AA0005 after emergence (7-22).png|250px]]||NH002||AA0005|| || | + | |[[File:2015 - AA0005 after emergence (7-22).png|250px]]||NH002||AA0005||48 (56) revised next day ||52 (60)||52 (60)||(''Note, the days listed in the x-axis of this chart is off by 8 days. Add 8 to the numbers you see.'') Emergence was predicted for Tuesday evening, July 21st. Turtle patrol reported 1 hatching track and a depression on 07/22. (More might have come out, there was a severe rain storm the previous night.) |
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− | |[[File:2015_-_NH004_after_emergence_(7-24)_sensor_AA0007.png|250px]]||NH004||AA0007|| || | + | |[[File:2015_-_NH004_after_emergence_(7-24)_sensor_AA0007.png|250px]]||NH004||AA0007||52 ||55||54||Emergence was predicted for Thursday evening, July 23rd. The first 15 or so were observed the evening before. The turtle patrol observed tracks for over 25 hatchlings on the 23rd. |
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− | |[[File:2015 - NH003 (7-28 final) sensor AA0006.png|250px]]||NH003||AA0006|| || | + | |[[File:2015 - NH003 (7-28 final) sensor AA0006.png|250px]]||NH003||AA0006|| 56||60||59||Emergence was predicted for Friday evening, July 24th. The first few hatchlings were observed the evening before. There was a boil on the 25th. |
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− | |[[File:2015 - NH014 (7-28) sensor AA0013.png|250px]]||NH014||AA0013|| || | + | |[[File:2015 - NH014 (7-28) sensor AA0013.png|250px]]||NH014||AA0013||50 ||54||54|| There was a boil the night of the 26th, sometime after 9PM and before 6:30AM the next morning, with too many tracks to count. |
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− | |[[File:2015 - NH015 (7-31) sensor AA0011.png|250px]]||NH015||AA0011|| || | + | |[[File:2015 - NH015 (7-31) sensor AA0011.png|250px]]||NH015||AA0011|| 54||57||56|| Three hatchlings emerged on the 29th and there was a boil on the 30th. |
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− | |[[File:2015 - NH022 (7-31) sensor AA0016.png|250px]]||NH022||AA0016|| || | + | |[[File:2015 - NH022 (7-31) sensor AA0016.png|250px]]||NH022||AA0016||48 ||51||51|| There was minimal data to use to generate a prediction, but even so the prediction was accurate. 30+ hatchlings emerged on the 29th. |
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− | |[[File:2015 - NH023 (8-11) sensor AA0017.png|250px]]||NH023||AA0017|| | + | |[[File:2015 - NH023 (8-11) sensor AA0017.png|250px]]||NH023||AA0017|| 53 ||58 || 57 || The morning of 8/7 a hatchling was found wandering near the dunes. Rain washed out the tracks so it is not certain how many emerged the evening of 8/6. There was a record of 9 hatchlings on the 9th and 5 on the 10th. A total of 85 eggshells were counted. It seems likely that most of the hatchlings left on Thursday evening (8/6). |
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||[[File:2015 - NH024 (8-10) sensor AA0025.png|250px]]||NH024||AA0025|| || Aug 6 || Aug 7 || More than 20 tracks were counted the morning of the 8th. On 8/9 the activity recorded was from the nest being washed out. Very few hatched or unhatched were found after the washout, so it is unclear exactly what happened. | ||[[File:2015 - NH024 (8-10) sensor AA0025.png|250px]]||NH024||AA0025|| || Aug 6 || Aug 7 || More than 20 tracks were counted the morning of the 8th. On 8/9 the activity recorded was from the nest being washed out. Very few hatched or unhatched were found after the washout, so it is unclear exactly what happened. |
Revision as of 00:00, 23 January 2016
We monitored nests at the Cape Hatteras National Seashore during 2015. For detailed day-by-day records of our predictions, please go to our Google Group
Graphs of monitored nests
Note: The x-axis is the number of days since the nest was discovered. This number is likely off by a few hours. Nests are discovered during turtle patrol and a sensor is installed in the nest at that time and registered in the database. Since the nest was laid sometime during the previous night, the exact incubation time might be off. Similarly, the date that emergence was first observed is often the morning after when the turtle patrol notes tracks in the sand. Both of these errors tend to cancel each other out. Note that NH002 is off by 8 days because it was not registered until 8 days after the nest was discovered.