Taxonomy and richness of nine genera of Amaranthaceae s.s. (Caryophyllales) in the Yucatan Peninsula Biotic Province

Amaranthaceae s.s. (Caryophyllales) is a cosmopolitan family well represented in the Yucatan Peninsula Biotic Province (YPBP). The YPBP is a biogeographic area that comprises entirely three Mexican states (Campeche, Quintana Roo, and Yucatan), partially two Mexican states (Chiapas and Tabasco), northern Belize, and northern Guatemala (Petén department). Most of the available checklists of the vascular plants from the Yucatan Peninsula (YP) merely include taxa from the Mexican states of Campeche, Quintana Roo, and Yucatan. A study of the Amaranthaceae diversity in the YPBP in its expanded delimitation is here presented for the first time, on the basis of field surveys and examinations of the specimens kept in the main Mexican herbaria (CICY, ENCB and MEXU). Accepted names, main synonyms, morphological descriptions, phenology, habitat, elevation, ethnobotanical uses, vernacular Spanish and Mayan names, origin status, and digital illustrations are provided for each taxon. Keys of identification are also given. Each taxon was geographically mapped using ArcGIS software. Notes about diversity and distribution analyses were conducted comparing maps of distribution for each taxon considering vegetation types and climatic types characterizing the YPBP. A total of 28 species (with 4 varieties) representing nine genera of Amaranthaceae s.s. (excluding Iresine) ocurring in the YPBP were studied. An estimate of the family diversity in the YPBP is increased here, as records of four new taxa are presented for this region. Results suggest that most of the taxa are natives, aliens, and/or weeds mostly occupying perturbed vegetation types. Only Blutaparon vermiculare, Amaranthus greggii, and A. arenicola show affinity to sand dunes primary vegetation. This new information about the distribution of Amaranthaceae s.s. in the YPBP, considering its invasion and origin status, can help to develop further studies focused on conservative approaching to know more about natural biogeographic regions such as YPBP.

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First evidence of parasitation of a Bosmina (Cladocera) by a water mite larva in a karst sinkhole, in Quintana Roo (Yucatán Peninsula, México)

Acarologia ◽

10.24349/acarologia/20194315 ◽

2019 ◽

Vol 59 (1) ◽

pp. 111-114

Author(s):

Lucia Montes-Ortiz ◽

Tom Goldschmidt ◽

Manuel Elías-Gutiérrez

Keyword(s):

Electron Microscope ◽

Scanning Electron Microscope ◽

Yucatan Peninsula ◽

Quintana Roo ◽

Water Mite ◽

Yucatán Peninsula ◽

Sem Imaging ◽

Karst Sinkhole ◽

First Time ◽

Scanning Electron

For the first time a parasitic relationship between a water mite larva and a Cladocera is found and documented by scanning electron microscope (SEM) imaging. A Unionicolidae larva (cf. Unionicola) has been found attached to a Bosmina tubicen (Cladocera) collected in a karst sinkhole (cenote) in the southeast of the Yucatán Peninsula (México).

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Larval development of the stygobitic shrimp Creaseria morleyi (Creaser, 1936) (Decapoda: Caridea: Palaemonidae) from the Yucatán Peninsula, Mexico

Journal of Crustacean Biology ◽

10.1093/jcbiol/ruaa006 ◽

2020 ◽

Vol 40 (3) ◽

pp. 221-229

Author(s):

Sergio A Benítez ◽

Thomas M Iliffe ◽

Salvador Martínez ◽

Juan Carlos Ojeda ◽

José Luis Villalobos ◽

...

Keyword(s):

Larval Development ◽

Yucatan Peninsula ◽

Juvenile Stage ◽

Quintana Roo ◽

Stages Of Development ◽

Larval Stages ◽

Yucatán Peninsula ◽

Anchialine Caves

Abstract Although the larval development of epigean palaemonid shrimps has been studied extensively, only a few investigations deal with stygobitic species. We present the larval development of the cave-adapted Creaseria morleyi (Creaser, 1936) from anchialine caves in the Tulum area, Quintana Roo, Yucatán Peninsula, Mexico. Through the discovery of a series of larvae at different stages of development, we constructed a sequence extending through the juvenile stage. The larvae (41) were captured in plankton tows above the halocline at depths ranging between 11 and 15 m during eight surveys conducted between 2013 and 2016. Six larval stages and the first juvenile were identified; however, it is clear from the gradual modification of structures and appendages that more stages exist. The first larvae have a large quantity of vitellum and do not feed, since they have only rudimentary, and possibly non-functional, mouthparts. In the sixth stage and the juvenile, when the stages have no vitellum left, the mouthparts, chelae, and pleopods develop entirely. A comparison with other palaemonid shrimps suggests that C. morleyi has a greater affinity with those palaemonid species possessing extended larval development as is seen in species of MacrobrachiumSpence Bate, 1868.

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Triacanthoneus akumalensis, a new species of alpheid shrimp (Crustacea: Caridea: Alpheidae) from an anchialine cave in Quintana Roo, Mexico

Zootaxa ◽

10.11646/zootaxa.3154.1.5 ◽

2012 ◽

Vol 3154 (1) ◽

pp. 61 ◽

Cited By ~ 3

Author(s):

FERNANDO ALVAREZ ◽

THOMAS M. ILIFFE ◽

BRETT GONZALEZ ◽

JOSÉ LUIS VILLALOBOS

Keyword(s):

New Species ◽

Yucatan Peninsula ◽

Quintana Roo ◽

Yucatán Peninsula ◽

Fourth Species ◽

A New Species ◽

Alpheid Shrimp

A new species of Triacanthoneus Anker, 2010 is described from an anchialine cave near Akumal, Quintana Roo, Mexico.Triacanthoneus akumalensis sp. nov., is the fourth species in the genus and can be distinguished from the previously de-scribed species by the position of the sharp lateral teeth on the carapace, the length and shape of the rostrum, the eyes beingcompletely concealed by the carapace, the dentition of the major chela fingers, and the shape of the telson. The presenceof a pleural process in the new species represents a new character for the genus. The description of T. akumalensis sp. nov. increases the number of caridean genera having representatives in the anchialine systems of the Yucatan Peninsula to 11.

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Influence of the holbox fracture zone on the karst geomorphology and hydrogeology of northern Quintana Roo, Yucatan Peninsula, Mexico

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts ◽

10.1016/0148-9062(94)92835-5 ◽

1994 ◽

Vol 31 (2) ◽

pp. A64

Keyword(s):

Fracture Zone ◽

Yucatan Peninsula ◽

Quintana Roo ◽

Yucatán Peninsula ◽

Karst Geomorphology

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The relationship between forest fragmentation and the potential geographical distribution of psittacids (Psittaciformes: Psittacidae) in the Yucatan Peninsula, Mexico

Revista de Biología Tropical ◽

10.15517/rbt.v65i4.26482 ◽

2017 ◽

Vol 65 (4) ◽

pp. 1470

Author(s):

Alexis Herminio Plasencia Vázquez ◽

Griselda Escalona Segura ◽

Yarelys Ferrer Sánchez

Keyword(s):

Geographical Distribution ◽

Forest Fragmentation ◽

Potential Distribution ◽

Yucatan Peninsula ◽

Quintana Roo ◽

Distribution Area ◽

Yucatán Peninsula ◽

Amazona Oratrix ◽

The Mean ◽

The Relationship

Parrots are a seriously threatened group because of the illegal pet trade, their habitat fragmentation and the destruction of tropical forests. This study aimed to determine the relationship between forest fragmentation and the geographic potential distribution of parrot species in the Yucatan Peninsula, Mexico. The research was carried out in the Mexican portion of the Yucatan Peninsula Biotic region, which includes the states of Campeche, Quintana Roo and Yucatan. We worked with the eight species of psittacids that inhabit the selected areas: Eupsittula nana, Amazona albifrons, Amazona xantholora, Amazona autumnalis, Pionus senilis, Pyrilia haematotis, Amazona oratrix and Amazona farinosa. For these species, we used the potential geographical distribution maps that were obtained through the Maximum Entropy algorithm, published in 2014. To measure the levels of forest fragmentation in the Peninsula, we employed the land use and vegetation maps from series IV (2007-2010) of the National Institute of Statistics and Geography. We calculated different landscape metrics at 100 sites randomly distributed within the predicted presence and absence areas for the species. Multivariate methods were used to shorten dimensionality in the analysis, as well as to explore the observed patterns. We did not find any pattern regarding the number of variables that contribute to the logistic regression models (LR) and the size of the parrots’ potential geographical distribution area within the Peninsula. For Pyrilia haematotis and Amazona oratrix, the fragmentation variables used did not seem to have any relationship with their potential geographical distribution in the Peninsula (intersection, Pr < 0.0001). Only for Eupsittula nana, Amazona xantholora and Pionus senilis, we found that the mean patch edge, the mean shape index and the mean perimeter-area ratio were important to determine their potential distribution patterns, respectively; and, in general, the variables indicated the preferences of these parrots to occupy larger habitat patches. Parrots must be given a special care and protection within the states of Campeche and Quintana Roo, since there are areas with high parrot diversity and are importantly affected by human activities. The best recommendation for managers and users of protected areas within the Yucatan Peninsula is that extensive areas of forest should be maintained in order to guarantee the suvival of psittacid populations.

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

Acta Biológica Colombiana ◽

10.15446/abc.v20n3.49373 ◽

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

Aristelliger georgeensis, 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.La especie amenazada Aristelliger georgeensis (Squamata: Sphaerodactylidae) en el Cayo Roncador, Caribe colombianoAristelliger georgeensis, 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.

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Field book - Yucatan Peninsula, Quintana Roo, Guatemala, and Belize, 1986-1987

10.5962/bhl.title.147064 ◽

1986 ◽

Author(s):

James Francis Lynch ◽

Smithsonian Environmental Research Center

Keyword(s):

Yucatan Peninsula ◽

Quintana Roo ◽

Yucatán Peninsula

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Using DNA barcodes to connect adults and early life stages of marine fishes from the Yucatan Peninsula, Mexico: potential in fisheries management

Marine and Freshwater Research ◽

10.1071/mf09222 ◽

2010 ◽

Vol 61 (6) ◽

pp. 655 ◽

Cited By ~ 65

Author(s):

Martha Valdez-Moreno ◽

Lourdes Vásquez-Yeomans ◽

Manuel Elías-Gutiérrez ◽

Natalia V. Ivanova ◽

Paul D. N. Hebert

Keyword(s):

Fisheries Management ◽

Species Recognition ◽

Yucatan Peninsula ◽

Sympatric Species ◽

Rapid Identification ◽

New Taxon ◽

Life Stages ◽

Important Species ◽

Yucatán Peninsula ◽

New Information

Barcoding has proven a useful tool in the rapid identification of all life stages of fish species. Such information is of critical importance for fisheries management and conservation, especially in high-diversity regions, such as Mexico’s marine waters, where more than 2200 species occur. The present study reports the barcode analysis of 1392 specimens from the Yucatan Peninsula, corresponding to 610 adults and juveniles, 757 larvae and 25 eggs, representing 181 species (179 teleosts and 2 rays), 136 genera and 74 families. Barcoding results revealed major range extensions and overlooked taxa, including three sympatric species of Albula (one likely undescribed) and a new taxon of Floridichthys. In total, six species of eggs and 34 species of larvae were identified through their barcode match with adults. These cases enabled the first discrimination of the larvae of four species of Eucinostomus, and new information about spawning locality and time was obtained from egg records for the hogfish, Lachnolaimus maximus, which is one of the most commercially important species in the Mexican Caribbean. Also, barcodes revealed mistakes in species recognition during a sport-fish contest. In the future, barcodes will help avoid similar errors and protect rare or endangered species, and will aid regulation of fisheries quotas.

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Leguminosae diversity in the Yucatan Peninsula and its importance for sheep and goat feeding

BSAP Occasional Publication ◽

10.1017/s1463981500042497 ◽

2006 ◽

Vol 34 ◽

pp. 291-299 ◽

Cited By ~ 2

Author(s):

José Salvador Flores ◽

Rita M. Vermont-Ricalde ◽

Jesús Martín Kantún-Balam

Keyword(s):

Yucatan Peninsula ◽

Vegetation Types ◽

Yucatán Peninsula ◽

Secondary Vegetation ◽

The Family ◽

Forage Species

SummaryIn this paper the diversity of the Leguminosae family in the Yucatán Peninsula is presented, explaining it by subfamilies, genus and species and in each of the three states of the Peninsula, as well as the distribution of the family in the different vegetation types and associations and in the secondary vegetation derived from both of them. The forage species that can be used combined with graminae to feed cattle like goats and sheep are also presented.

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