Project: Do Parallel Patterns Arise from Parallel Processes?

Acronym/Short Name:PaPaPro
Project Duration:2013-01 - 2017-12
Geolocation:Western Pacific; Palau; Indonesia (West Papua)

Description

This project will survey the taxonomic, genetic, and functional diversity of the organisms found in marine lakes, and investigate the processes that cause gains and losses in this biodiversity. Marine lakes formed as melting ice sheets raised sea level after the last glacial maximum and flooded hundreds of inland valleys around the world. Inoculated with marine life from the surrounding sea and then isolated to varying degrees for the next 6,000 to 15,000 years, these marine lakes provide multiple, independent examples of how environments and interactions between species can drive extinction and speciation. Researchers will survey the microbes, algae, invertebrates, and fishes present in 40 marine lakes in Palau and Papua, and study how diversity has changed over time by retrieving the remains of organisms preserved in sediments on the lake bottoms. The project will test whether the number of species, the diversity of functional roles played by organisms, and the genetic diversity within species increase and decrease in parallel; whether certain species can greatly curtail diversity by changing the environment; whether the size of a lake determines its biodiversity; and whether the processes that control diversity in marine organisms are similar to those that operate on land.

Because biodiversity underlies the ecosystem services on which society depends, society has a great interest in understanding the processes that generate and retain biodiversity in nature. This project will also help conserve areas of economic importance. Marine lakes in the study region are important for tourism, and researchers will work closely with governmental and non-governmental conservation and education groups and with diving and tourism businesses to raise awareness of the value and threats to marine lakes in Indonesia and Palau.


DatasetLatest Version DateCurrent State
Specimen log with OTU identifiers collected from Palau marine lakes2021-12-30Final no updates expected
Core Logger Physical Properties for Palau Lakes Sediment Cores collected from small boats from September to October 20132019-06-27Final no updates expected
14C dates from core PC1 collected from T Lake, Palau in September 20132019-06-21Final no updates expected
Record of abundance and δ2H of dinosterol in down core lake sediments from T Lake, Palau collected in September 20132019-06-19Final no updates expected
Physical description of marine lakes: surface area, distance to ocean, tidal efficiency, depth, and stratification2019-05-13Final no updates expected
Marine lakes of Palau barcoded specimens from transect survey with both lab identification number (M0D#) and original tube number2019-05-13Final no updates expected
Environmental sensor data collected in Palau marine lakes from small boats, 2011-20152019-05-13Final no updates expected
Voucher summary of invertebrates and barcoded OTU's with field identifications, collected from Palau marine lakes2019-05-13Final no updates expected
Point intercept transect surveys of benthic macro-invertebrates and macrophytes in marine lakes, Palau, NW Pacific from 2014-2017 (PaPaPro project)2019-05-08Final no updates expected
Isotopes from B. gymnorhiza mangroves in Palau during 20132017-07-19Final no updates expected
Record of d2H of dinosterol variability in down core lake sediments from Clear Lake, Palau2017-05-04Final no updates expected
Environmental data collected in marine lakes in Palau in 2010 from small boats2017-02-24Final no updates expected
Link to weather observations from Koror, Palau, 2014-2017 (PaPaPro project)2017-01-03Final no updates expected
Magnetic Susceptibility (raw data from the ITRAX instrument) for a sediment core taken from Ongael Lake, Palau in 2013 (PaPaPro project)2013-12-17Preliminary and in progress

Project Home Page


People

Principal Investigator: Michael N. Dawson
University of California-Merced (UC Merced)

Co-Principal Investigator: John Michael Beman
University of California-Merced (UC Merced)

Co-Principal Investigator: Julian P. Sachs
University of Washington (UW)

Contact: Michael N. Dawson
University of California-Merced (UC Merced)


Programs

Dimensions of Biodiversity [Dimensions of Biodiversity]