Populations

MCR LTER: Coral Reef: Patterns and implications of spatial covariation in herbivore functions on resilience of coral reefs

These data and code were generated in support of the manuscript: Cook DT, Holbrook SJ, and Schmitt RJ, Scientific Reports. In 2017, we collected biological and physical data from 20 sites along the north shore of Moorea, French Polynesia, to investigate spatial patterns in grazing and browsing functions of herbivorous fishes, environmental correlates, and implications for coral resilience.

MCR LTER: Coral Reef: Growth and Survivorship of Dascyllus trimaculatus

The influence of density-dependent and number-dependent processes on individual demographic rates often results in ecological tradeoffs. Because such processes have important implications for individual level fitness and population regulation, they long have been an important topic in ecological research. I used Dascyllus trimaculatus, a site-attached planktivorous coral reef fish, to determine independently the effects of population density and group size on rates of individual growth and mortality. Somatic growth of D. trimaculatus was positively related to the density of D.

MCR LTER: Coral Reef: Effects of Flow and Temperature on Growth and Photophysiology of Scleractinian Corals in Moorea, French Polynesia

To test for threshold effects in the response of coral physiology to increasing seawater flow, field and laboratory experiments were conducted in Moorea. First, the growth of juvenile massive Porites spp. and branching P. irregularis was compared among habitats differing in water motion. Growth of massive Porites spp. responded to flow in a pattern consistent with a threshold effect, whereas growth of P. irregularis increased linearly with flow.
Contrasting impacts of different disturbance types on coral reefs: Wave disturbance vs. coral bleaching.

Year: 

2023
Quantifying the loss of coral from a bleaching event using underwater photogrammetry and AI-assisted image segmentation.

Year: 

2023
Material legacies can degrade resilience: Structure-retaining disturbances promote regime shifts on coral reefs.

Year: 

2023
Pocillopora tuahiniensis: a new species of scleractinian coral (Scleractinia, Pocilloporidae) from French Polynesia.

Year: 

2023
Viruses of a key coral symbiont exhibit temperature-driven productivity across a reefscape.

Year: 

2023
Farmerfish gardens help buffer stony corals against marine heat waves.

Year: 

2023
Consumer feces impact coral health in guild-specific ways.

Year: 

2023
Coral recruitment: patterns and processes determining the dynamics of coral populations.

Year: 

2023
Reconciling the variability in the biological response of marine invertebrates to climate change.

Year: 

2023
Building consensus around the assessment and interpretation of Symbiodiniaceae diversity.

Year: 

2023
3D photogrammetry improves measurement of growth and biodiversity patterns in branching corals.

Year: 

2023
Disentangling the impacts of macroalgae on corals via effects on their microbiomes.

Year: 

2023
Coral reef structural complexity loss exposes coastlines to waves.

Year: 

2023

MCR LTER: Coral Reef: Diadema predation and recruitment in Moorea, French Polynesia

These are field data from Moorea, French Polynesia regarding the population dynamics of Diadema savignyi. Data were collected during the austral winters in 2009 and 2010. Four datasets are provided: (1) recruitment data of Diadema savignyi over the course of ~9 weeks during the austral winter of 2010, (2) predation data of adult Diadema using a tethering experiment, (3) urchin abundance surveys for 2009 and 2010, and (4) a 9 week weekly survey of newly recruited Diadema (test diameter).

MCR LTER: Coral Reef: Community Dynamics: Physical Characteristics of Branching Acropora Patches and Species Richness and Abundances of Associated Fishes

Branching corals, like many in the genus Acropora, provide structurally complex habitats for reef fishes and other organisms. Fluctuations in the abundance, distribution and characteristics of staghorn Acroporid corals may contribute to changes in the abundance and species composition of reef fishes due to changes in the availability of shelter habitat and food. Farming damselfishes of the genus Stegastes occur in high abundances in staghorn thickets and actively defend food and nest space against organisms that threaten these resources.

MCR LTER: Coral Reef: Changes in the abundance of fish functional groups: Adam et al. 2014 Oecologia

These data were generated from two long-term time series (knb-lter-mcr.4 and knb-lter-mcr.6) in order to analyze the relationship between the cover of live and dead branching corals and changes in the abundance of different functional groups of fishes following the loss of coral on the fore reef of Moorea due to an outbreak of corallivorous crown-of-thorns sea stars (Acanthaster planci) and a tropical cylcone. Analyses were conducted in support of an ecological manuscript published in Oecologia Adam, T. C., Brooks, A. J., Holbrook, S. J., Schmitt, R. J., Washburn, L., Bernardi, G.

MCR LTER: Coral Reef: Long-term Population Dynamics of Acanthaster planci, ongoing since 2005

These data describe the abundance of Acanthaster planci, Crown of Thorns Sea stars, surveyed as part of MCR LTER's annual reef fish monitoring program. This study began in 2005 and the dataset is updated annually. The abundances of A. planci observed on a five-by-fifty meter transect are recorded by a diver using SCUBA. Surveys are conducted between 0900 and 1600 hours (Moorea time) during late July or early August each year.

MCR LTER: Coral Reef: Long-term Community Dynamics: Backreef (Lagoon) Corals Annual Survey, ongoing since 2005

This dataset contains the percentage cover of all stony corals (Scleractinia, pooled among genera) and other major groups analyzed from 0.5 x 0.5 m photographic quadrats at the Backreef habitat at the Moorea Coral Reef LTER, French Polynesia. This survey time series began in 2005 and is repeated each year in April. Functional groups counted are: Scleractinian corals, Macroalgae, Crustose Coralline Algae / Bare Space, Soft Corals, Hydrocorals ( Millepora ), Algal Turf and Sand.

MCR LTER: Coral Reef: Population Dynamics: Symbiodinium population initial sampling conditions in corals of Moorea

These data consist of sample collection locations and conditions only, not the results of sequencing. These data were an initial collection of an expected time series which was not repeated. Clade data derived from the sample collection described here are archived on GeoSymbio. https://sites.google.com/site/geosymbio/home Coral are symbiotic with photosynthetic dinoflagellates from the genus Symbiodinium. There are eight divergent clades (A-H) within the genus which each contain many genetic varieties.

MCR LTER: Genetics: Settlement dynamics in the clownfish, Amphiprion chrysopterus

These data describe the genetics of recruiting Amphiprion chrysopterus. Our goal is to score every single clownfish from the island of Moorea (we believe that the total population in Moorea is of approximately 300-500 individuals). Individuals are characterized using microsatellites, thus the data are presented as a matrix of alleles corresponding to a set of microsatellite loci.
Crafting the success and failure of decentralized marine management.

Year: 

2022
Unified methods in collecting, preserving, and archiving coral bleaching and restoration specimens to increase sample utility and interdisciplinary collaboration.

Year: 

2022
Nonlinear dynamics, resilience, and regime shifts in aquatic communities and ecosystems: an overview.

Year: 

2022
Biological trade-offs underpin coral reef ecosystem functioning.

Year: 

2022
The role of predators in coral disease dynamics.

Year: 

2022
Cophylogeny and specificity between cryptic coral species (Pocillopora spp.) at Moorea and their symbionts (Symbiodiniaceae).

Year: 

2022

MCR LTER: Genetics: Settlement dynamics in the three-spot damselfish, Dascyllus trimaculatus

These data describe the genetics of recruiting Dascyllus trimaculatus. We first placed two rows of 8 anemones in a region (the west side of the bay of Opunohu) previously devoid of anemones. Anemones are 10 meters apart, the two rows are 100 meters apart. The row close to the reef crest is called crest , or OUT, row, the row away from the crest and close to the boat channel is called channel, or IN, row. The project started with the placement of the anemones in the fall of 2000. Since then, we regularly clear the anemones of Dascyllus and then collect newly settled fishes every morning.

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