Abundance and reproductive patterns of the excavating sponge Cliona vermifera: a threat to Pacific coral reefs?
نویسندگان
چکیده
منابع مشابه
Population structure and dispersal of the coral-excavating sponge Cliona delitrix.
Some excavating sponges of the genus Cliona compete with live reef corals, often killing and bioeroding entire colonies. Important aspects affecting distribution of these species, such as dispersal capability and population structure, remain largely unknown. Thus, the aim of this study was to determine levels of genetic connectivity and dispersal of Cliona delitrix across the Greater Caribbean ...
متن کاملEffects of pCO2 on the interaction between an excavating sponge, Cliona varians, and a hermatypic coral, Porites furcata
Currently, atmospheric CO2 levels fluctuate around 390 ppm and continue to rise at an accelerating rate (Caldeira and Wickett 2003, 2005); projected scenarios indicate that levels will approach 450–600 ppm by 2050 and 750– 1,000 ppm by the end of the twenty-first century (IPCC 2007; gattuso and lavigne 2009). The resultant increase in dissolved seawater CO2 is expected to reduce surface ocean p...
متن کاملThe effects of coastal development on sponge abundance, diversity, and community composition on Jamaican coral reefs.
Over the past decade, development along the northern coast of Jamaica has accelerated, resulting in elevated levels of sedimentation on adjacent reefs. To understand the effects of this development on sponge community dynamics, we conducted surveys at three locations with varying degrees of adjacent coastal development to quantify species richness, abundance and diversity at two depths (8-10 m ...
متن کاملChemical and mechanical bioerosion of boring sponges from Mexican Pacific coral reefs.
Species richness (S) and frequency of invasion (IF) by boring sponges on living colonies of Pocillopora spp. from National Park Isla Isabel (México, East Pacific Ocean) are presented. Twelve species belonging to the genera Aka, Cliona, Pione, Thoosa and Spheciospongia were found, and 56% of coral colonies were invaded by boring sponges, with Cliona vermifera Hancock 1867 being the most abundant...
متن کاملTesting species abundance models: a new bootstrap approach applied to Indo-Pacific coral reefs.
Patterns in the commonness and rarity of species are a fundamental characteristic of ecological assemblages; however, testing between alternative models for such patterns remains an important challenge. Conventional approaches to fitting or testing species abundance models often assume that species, not individuals, are the units that are sampled and that species' abundances are independent of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Coral Reefs
سال: 2013
ISSN: 0722-4028,1432-0975
DOI: 10.1007/s00338-013-1094-1