scholarly journals How is the anchialine fauna distributed within a cave? A study of the Ox Bel Ha System, Yucatan Peninsula, Mexico

2019 ◽  
Vol 31 ◽  
pp. 15-28 ◽  
Author(s):  
Sergio Benítez ◽  
Thomas M. Illife ◽  
Benjamín Quiroz-Martínez ◽  
Fernando Alvarez
Keyword(s):  
Species Composition ◽  
Yucatan Peninsula ◽  
Sampling Site ◽  
Regional Scale ◽  
Horizontal Scale ◽  
Cave System ◽  
Yucatán Peninsula ◽  
High Connectivity ◽  
The Caribbean ◽  
Species Composition And Distribution

A study describing the diversity and distribution pattern of the stygobitic fauna in the Ox Bel Ha anchialine cave system adjacent to the Caribbean coast of the Yucatan Peninsula, Mexico is presented. A total of 15 species of crustaceans were collected in three surveys at four points situated along a 10.2 km transect perpendicular to the coast line. A freshwater mass dominated throughout the transect with a halocline that appeared progressively deeper, from 10 to 18 m, with increasing distance from the coast. All the recorded species, except for one, occurred throughout the transect with no defined pattern. Abundance and species richness did not vary significantly with distance from the coast, whereas diversity (H’) peaked in the second sampling site at 3.17 km from the coast. As expected, most of the organisms occurred only in the freshwater layer, except for the remipede Xibalbanustulumensis (Yager, 1987) that was found always at or below the halocline, and five other species that were found above and below the halocline. In the horizontal scale, species composition and occurrence mixed without a defined pattern, both, for sampling dates and sites. The results show that the analyzed fauna is distributed throughout the 10.2 km transect without showing any defined horizontal zonation pointing to a high connectivity among all sections. Due to the high connectivity within the caves in the area, it is expected that significant variation in species composition and distribution will be found at a larger regional scale.

Molecular taxonomy of Speleonectes fuchscockburni, a new pseudocryptic species of Remipedia (Crustacea) from an anchialine cave system on the Yucatán Peninsula, Quintana Roo, Mexico

Zootaxa ◽  
2012 ◽  
Vol 3190 (1) ◽  
pp. 31 ◽  
Author(s):  
MARCO T. NEIBER ◽  
FINJA C. HANSEN ◽  
THOMAS M. ILIFFE ◽  
BRETT C. GONZALEZ ◽  
STEFAN KOENEMANN
Keyword(s):  
New Species ◽  
Yucatan Peninsula ◽  
Molecular Taxonomy ◽  
Quintana Roo ◽  
Cave System ◽  
Yucatán Peninsula ◽  
The Status ◽  
The Caribbean ◽  
Coi Sequences ◽  
A New Species

A new species of Remipedia (Crustacea) is described from a recently discovered section of the anchialine cave systemCenote Crustacea, situated on the northeastern coast of the Yucatán Peninsula. Speleonectes fuchscockburni n. sp. is thesecond remipede species from the Caribbean coast of Mexico. Adult specimens are relatively small and slender, with bodylengths between 12 and 16 mm, and up to 35 trunk segments. The new species can be distinguished morphologically fromS. tulumensis by sparsely setose appendages, a ventral antennular flagellum composed of 5–6 segments, and 10–12 deeplyincised denticles of the terminal maxillary and maxillpedal claws. The status of Speleonectes fuchscockburni as a new spe-cies is validated by a comparison of cytochrome c oxidase subunit I (COI) sequences from selected remipede taxa, includ-ing Speleonectes tulumensis. The uniquely high abundance of S. tulumensis in Cenote Crustacea and the distribution of the two remipedes in this cave are discussed in relation to hydrology and cave morphology.

scholarly journals Composition and fluxes of submarine groundwater along the Caribbean coast of the Yucatan Peninsula

2014 ◽  
Vol 77 ◽  
pp. 38-50 ◽  
Author(s):  
Kimberly A. Null ◽  
Karen L. Knee ◽  
Elizabeth D. Crook ◽  
Nicholas R. de Sieyes ◽  
Mario Rebolledo-Vieyra ◽  
...  
Keyword(s):  
Yucatan Peninsula ◽  
Caribbean Coast ◽  
Yucatán Peninsula ◽  
Submarine Groundwater ◽  
The Caribbean

scholarly journals THE ENDANGERED SPECIES Aristelliger georgeensis (Squamata: Sphaerodactylidae) IN RONCADOR CAY, COLOMBIAN CARIBBEAN

2015 ◽  
Vol 20 (3) ◽  
pp. 221-224
Author(s):  
Mateo LÓPEZ-VICTORIA ◽  
Juan Manuel DAZA
Keyword(s):  
Endangered Species ◽  
Yucatan Peninsula ◽  
National Level ◽  
Oceanic Islands ◽  
Small Island ◽  
Yucatán Peninsula ◽  
The Caribbean ◽  
San Andres ◽  
First Time

<p><em>Aristelliger georgeensis</em>, previously known to occur in the Yucatan peninsula (Mexico), the coasts and islands from Belize and Honduras, and the oceanic islands of Colombia in the Caribbean (San Andres, Providence and Saint Catalina) was registered for the first time in Roncador Cay, a flat and small island of coralline origin, located in the southwest of the Caribbean. Being considered as an endangered species at the national level, the new locality for this gecko constitutes an opportunity for its conservation. Some topics regarding the possible origins of this new population are discussed. This new locality represents the eastern most documented record of this species so far.</p><p><strong>La especie amenazada <em>A</em><em>ristelliger georgeensis</em> (Squamata: Sphaerodactylidae) en el Cayo Roncador, Caribe colombiano</strong></p><p><em>Aristelliger georgeensis</em>, previamente conocido de la península de Yucatán (México), las costas e islas de Belice y Honduras y de las islas oceánicas de Colombia en el Caribe (San Andrés, Providencia y Santa Catalina), fue registrado por primera vez en el Cayo Roncador, una isla plana y pequeña de origen coralino, ubicada en el suroccidente del Caribe. Siendo considerada como una especie amenazada a nivel nacional, la nueva localidad para este geco constituye una oportunidad para su conservación. Se discuten algunos tópicos relacionados con el posible origen de esta nueva población. Esta nueva localidad representa el registro documentado más al Este para la especie. </p>

Contaminants in the coastal karst aquifer system along the Caribbean coast of the Yucatan Peninsula, Mexico

2011 ◽  
Vol 159 (4) ◽  
pp. 991-997 ◽  
Author(s):  
Chris D. Metcalfe ◽  
Patricia A. Beddows ◽  
Gerardo Gold Bouchot ◽  
Tracy L. Metcalfe ◽  
Hongxia Li ◽  
...  
Keyword(s):  
Yucatan Peninsula ◽  
Karst Aquifer ◽  
Caribbean Coast ◽  
Aquifer System ◽  
Yucatán Peninsula ◽  
Coastal Karst ◽  
Karst Aquifer System ◽  
The Caribbean

Isotopic and elemental indicators of nutrient sources and status of coastal habitats in the Caribbean Sea, Yucatan Peninsula, Mexico

2007 ◽  
Vol 74 (3) ◽  
pp. 449-457 ◽  
Author(s):  
Troy Mutchler ◽  
Kenneth H. Dunton ◽  
Amy Townsend-Small ◽  
Stein Fredriksen ◽  
Michael K. Rasser
Keyword(s):  
Yucatan Peninsula ◽  
Caribbean Sea ◽  
Coastal Habitats ◽  
Nutrient Sources ◽  
Yucatán Peninsula ◽  
The Caribbean

Preceramic Connections between Yucatan and the Caribbean

1998 ◽  
Vol 9 (4) ◽  
pp. 342-352 ◽  
Author(s):  
Samuel M. Wilson ◽  
Harry B. Iceland ◽  
Thomas R. Hester
Keyword(s):  
Yucatan Peninsula ◽  
Human Migration ◽  
Greater Antilles ◽  
Yucatán Peninsula ◽  
New Findings ◽  
Archaeological Work ◽  
The Caribbean ◽  
Lithic Artifacts

Archaeologists have long noted similarities between the lithic artifacts of the first colonists of the Greater Antilles (ca. 3500-2000 B.C.) and those from the eastern Yucatán Peninsula. Recent archaeological work in northern Belize has provided additional archaeological information on the characteristics and dating of the mainland assemblages. New findings by Caribbean archaeologists also have contributed to a clearer picture of the circumstances surrounding the first human migration to the Greater Antilles. A Yucatecan origin for the first Caribbean migrants is now considered probable.

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