Results 51 to 60 of about 417 (152)

Metapopulation‐scale resilience to disease‐induced mass mortality in a keystone predator: From stasis to instability

Ecosphere, Volume 16, Issue 10, October 2025.
Abstract Mass mortality from disease epidemics challenges the resistance and resilience of populations and communities. Assessing the impacts and consequences of such events is crucially dependent on long‐term datasets. In 2013–2016, sea star wasting disease (SSWD) caused population‐wide crashes of the archetypal keystone species, the sea star Pisaster
Sarah A. Gravem, Bruce A. Menge
wiley   +1 more source

Population Growth and Distribution of Diadema antillarum at Discovery Bay, Jamaica [PDF]

The Open Marine Biology Journal, 2009
The urchin Diadema antillarum Philippi (Echinodermata: Echinoidea) was extremely rare to absent from reefs throughout Jamaica during much of the 1980s and part of the 1990s following a Caribbean wide mortality event. This survey was conducted in 2007 to assess their distribution on the western forereef of Discovery Bay, Jamaica.
Eric T. Koepfler, Erin J. Burge, Laura O. Casey, Andrew J. Sellers   +3 more
openaire   +1 more source

Employing invertebrates to restore herbivory on Caribbean coral reefs: recent developments and remaining barriers

Restoration Ecology, Volume 33, Issue 4, May 2025.
With coral reefs in global decline and further threatened by growing anthropogenic impacts, effective strategies for restoring these critical ecosystems are increasingly sought after. In Caribbean reefs, where disease outbreaks and fishing pressure have reduced herbivore abundances and facilitated widespread phase shifts from coral to algal dominance ...
Margaret W. Wilson, Monique Bigler, Genevieve Renaud‐Byrne, Sara Gutiérrez Plata, Alwin Hylkema, Joshua Patterson, Aaron Pilnick, Angelo Jason Spadaro, Stacey M. Williams   +8 more
wiley   +1 more source

Predation upon Diadema aff. Zantillarum in barren grounds in the Canary Islands

Scientia Marina, 2007
Experimental studies were carried out to determine the effects of predation on populations of the sea urchin Diadema aff. antillarum in barren grounds at the Canary Islands.
Sabrina Clemente, José Carlos Hernández, Kilian Toledo, Alberto Brito   +3 more
doaj   +1 more source

A Busse Balloon in the Lagoon: Herbivore Behaviour Generates Spatial Patterns in Coral Reef Ecosystems

Ecology Letters, Volume 28, Issue 3, March 2025.
We used partial differential equations to explore whether Busse balloons (self‐organised spatial patterns that allow for coexistence of alternative stable states outside of the region of bistability) are possible in coral reef ecosystems. We found that herbivore attraction to coral resulted in a Busse balloon that enhanced macroalgal resilience ...
A. Raine Detmer, Scott D. Miller, Alexandra K. Dubel, Kacie Ring, Christian John, Cheryl J. Briggs, Andrew Rassweiler, Holly V. Moeller   +7 more
wiley   +1 more source

Influence of Diadema antillarum populations (Echinodermata: Diadematidae) on algal community structure in Jardines de la Reina, Cuba

Revista de Biología Tropical, 2011
The 1983-1984 mass mortality of Diadema antillarum produced severe damages on Caribbean reefs contributing to substantial changes in community structure that still persist.
Félix Martín Blanco, Lídice Clero Alonso, Gaspar González Sansón, Fabián Pina Amargós   +3 more
doaj   +2 more sources

Low retention of restocked laboratory‐reared long‐spined sea urchins Diadema antillarum due to Spanish hogfish Bodianus rufus predation

Restoration Ecology, Volume 32, Issue 8, November 2024.
The die‐off of the long‐spined sea urchin Diadema antillarum in the 1980s highlighted its crucial role as a primary grazer in tropical western Atlantic coral reefs. However, natural recovery has been slow, exacerbated by a new die‐off in 2022. Interest in actively restoring D.
Tom Wijers, Oliver Klokman, Albertinka J. Murk, Jilles Sijbrandij, Alwin Hylkema   +4 more
wiley   +1 more source

Friend of the dead: Zoanthids enhance the persistence of dead coral reef framework under high consumer pressure

Ecosphere, Volume 15, Issue 9, September 2024.
Abstract Consumers can play critical roles in ecosystem resilience by modifying community resistance and recovery rates. In coral reefs, grazers can increase reef resilience by controlling algae and maintaining open space for coral recruitment, but can also erode the reef framework critical for coral recovery.
Patrick H. Saldaña, Natalie L. Lang, Andrew H. Altieri   +2 more
wiley   +1 more source

NAPHTHAQUINONE PIGMENT IN THE TROPICAL SEA URCHIN DIADEMA ANTILLARUM PHILIPPI [PDF]

Proceedings of the Zoological Society of London, 1956
Summary.Pigment with the characteristics of a naphthaquinone is widely distributed throughout the body of the echinoid Diadema antillarum. Chromatography indicates that there is a main reddish orange pigment sometimes accompanied by small amounts of a purple pigment.The purified main pigment crystallises in red needles which melt at 223°C, sublime ...
openaire   +1 more source

Fine‐grained sediment production by endolithic sponges on Caribbean coral reefs

Limnology and Oceanography, Volume 69, Issue 9, Page 2015-2028, September 2024.
Abstract Endolithic sponges are key players in carbonate cycling on coral reef systems. While their bioerosion of reef framework is relatively well studied, their role in biogenic sediment generation is poorly understood. In this study, the sedimentary attributes and production rates of eight Caribbean endolithic sponge species were characterized.
Didier M. de Bakker, Chris T. Perry, Eden Magaña‐Gallegos, Esmeralda Pérez‐Cervantes, Lorenzo Alvarez‐Filip   +4 more
wiley   +1 more source