Jon D. Witman

Affiliation:

Brown University

Address:

Ecology and Evolutionary Biology Department
Box G-W Brown University
Providence, RI
USA 02912

ORCiD:

0000-0002-7983-6665

Activities reported for Jon D. Witman:

Program coordination

None

Project coordination

Effects of Predator Diversity on the Strength of Trophic Cascades in an Oceanic Benthic Ecosystem (GMR Trophic Cascades)	Lead Principal Investigator
RAPID: Understanding Thresholds and regime shifts in marine ecosystems: effects of the 2014-2015 El Nino in the Galapagos rocky subtidal (RAPDGALPGS)	Principal Investigator, Contact
RAPID: Testing the ability of the 2015-2017 El Nino Southern Oscillation (ENSO) to drive a community-level regime shift in the Galapagos marine ecosystem (SPONGERAPDGALPGS)	Principal Investigator, Contact
RAPID: Illuminating the effects of a COVID-19 elimination of diver disturbance on reef fish behavior, distribution and ecosystem functioning in the Galapagos Marine Reserve (Galapagos diver disturbance)	Lead Principal Investigator

Deployment coordination

Deployment	Synonyms	Platform	Role
RAPDGALPGS_barnacles_2015-2016		Galapagos_Islands	Principal Investigator
RAPDGALPGS_Champion-12m	Champion-12m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Champion-15m	Champion-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Cousins-6m	Cousins-6m	RAPDGALPGS Temperatures	Principal Investigator
RAPDGALPGS_Cuatro_Hermanos-15m	Cuatro_Hermanos-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Daphne_Menor-15m	Daphne_Menor-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Daphne_Menor-6m	Daphne_Menor-6m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Guy_Fawkes-15m	Guy_Fawkes-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Islote_Gardner-15m	Islote_Gardner-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Las_Cuevas-15m	Las_Cuevas-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_La_Botella-15m	La_Botella-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Pinzon-15m	Pinzon-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Rocas_Beagle-15m	Rocas_Beagle-15m	RAPDGALPGS Temperatures	Chief Scientist
RAPDGALPGS_Rocas_Gordon-15m	Rocas_Gordon-15m	RAPDGALPGS Temperatures	Principal Investigator
RAPDGALPGS_sites		Galapagos_Islands	Principal Investigator
Witman_2014		Unknown Platform	Principal Investigator

Datasets

Project: RAPID: Illuminating the effects of a COVID-19 elimination of diver disturbance on reef fish behavior, distribution and ecosystem functioning in the Galapagos Marine Reserve

Dataset	Version Date	Current State
Body size measurements of megafauna species at 6 sites after the 2020 COVID lockdown in the Galapagos Islands from 2020-2021 (Galapagos diver disturbance project) Principal Investigator	2023-10-23	Preliminary and in progress
Fish Flight Initiation Distance Data During the COVID 19 Lockdown from 2020-2021 (Galapagos diver disturbance project) Principal Investigator	2023-10-17	Preliminary and in progress
Sound pressure levels from hydrophone recordings at six sites in the Galapagos Islands from September 2020 through August 2022 to examine soundscapes during the Anthropause and beyond Principal Investigator, Contact	2023-09-13	Preliminary and in progress

Project: RAPID: Testing the ability of the 2015-2017 El Nino Southern Oscillation (ENSO) to drive a community-level regime shift in the Galapagos marine ecosystem

Dataset	Version Date	Current State
Sea urchin (Eucidaris) quadrat counts at twelve sites in the Galápagos Islands in 2016-2017 Principal Investigator	2022-04-11	Final no updates expected
Barnacle (Megabalanus peninsularis) cover in the central Galápagos Islands, Ecuador from Jan 2016 to Jan 2017 Principal Investigator, Contact	2018-03-29	Preliminary and in progress
Subtidal temperatures at 2 depth strata (6 and 12-15 m depth) from 12 sites in the central Galápagos Islands, Ecuador from February 2016 to February 2017 (SPONGERAPDGALPGS project) Principal Investigator, Contact	2017-12-21	Preliminary and in progress
Measurement site locations from RAPDGALPGS project in the Eastern Tropical Pacific, Galapagos Islands, Ecuador in 2015 and the SPONGERAPDGALPGS project in 2016 and 2017 Principal Investigator, Contact	2017-03-03	Final no updates expected

Project: RAPID: Understanding Thresholds and regime shifts in marine ecosystems: effects of the 2014-2015 El Nino in the Galapagos rocky subtidal

Dataset	Version Date	Current State
Barnacle percent cover in rocky subtidal habitats of the Galapagos Islands observed in 2015 and 2016 (RAPDGALPGS project) Principal Investigator, Contact	2017-02-16	Preliminary and in progress
Subtidal temperature values from RAPDGALPGS project in the Eastern Tropical Pacific, Galapagos Islands, Ecuador in 2015 and 2016 (RAPDGALPGS project) Principal Investigator, Contact	2017-02-10	Preliminary and in progress
Measurement site locations from RAPDGALPGS project in the Eastern Tropical Pacific, Galapagos Islands, Ecuador in 2015 and the SPONGERAPDGALPGS project in 2016 and 2017 Principal Investigator, Contact	2017-03-03	Final no updates expected

Project: Effects of Predator Diversity on the Strength of Trophic Cascades in an Oceanic Benthic Ecosystem

Dataset	Version Date	Current State
Percent algal substrate grazed by sea urchins in trophic cascade experiments in Gal?pagos Islands during 2012 (GMR Trophic Cascades project) Principal Investigator, Contact	2016-01-19	Final no updates expected
Experimental results describing urchin survivorship in tethering experiments on rocky subtidal sites in the Galapagos Islands during 2007-2008 (GMR Trophic Cascades project) Principal Investigator, Contact	2016-01-15	Preliminary and in progress
Sea water temperatures corresponding to the experimental trials for 2 species of sea urchin found in the subtidal areas of Isla Baltra, Galapagos during June-July 2012 (GMR Trophic Cascades project) Principal Investigator, Contact	2016-01-15	Final no updates expected
Residence times of consumers in subtidal areas on Isla Baltra, Gal?pagos during 2012 (GMR Trophic Cascades project) Principal Investigator, Contact	2016-01-05	Final no updates expected
Subtidal temperature data (12-15 m depth) in the central Galapagos Islands, Ecuador from 2011-2013 (GMR Trophic Cascades project) Principal Investigator, Contact	2014-06-11	Preliminary and in progress

Status message

Database

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Jon D. Witman

Activities reported for Jon D. Witman: