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1.
Libro
Manual de identificación de aves residentes y migratorias: Área de Protección de Flora y Fauna Metzabok / textos: Manuela Morales Herández ; ilustraciones: José Guadalupe Coutiño Monzón
Morales Herández, Manuela ;
México, D. F. : Comisión Nacional de Áreas Naturales Protegidas. Área de Protección de Flora y Fauna Metzabok , s.f.
Clasificación: C CH/598.2097275 / M6
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
ECO010018650 (Disponible)
Disponibles para prestamo: 1
Resumen en: Español |
Resumen en español

Contar con una gran biodiversidad en nuestro país, nos enorgullece como mexicanos, preservemos nuestras riquezas naturales y culturales protegiendo las áreas naturales protegidas, donde habitan maravillosos seres vivos, ya que la transformación de su ambiente y su comercio es la principal amenaza a su supervivencia.


2.
- Artículo con arbitraje
Clave dicotómica para la identificación de Apendicularias en el Pacífico Tropical Oriental y mares interamericanos, con un listado de especies para Costa Rica
Corrales Ugalde, Marco ; Castellanos Osorio, Iván Arturo (coaut.) ; Morales Ramírez, Álvaro (coaut.) ;
Contenido en: Revista de Biología Tropical Supl. 1, Vol. 66, no. 2 (April 2018), p. S108-S122 ISSN: 0034-7744
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Resumen en: Español | Inglés |
Resumen en español

A pesar de que las apendicularias son consumidores primarios relevantes en las comunidades planctónicas, existe poca información detallada sobre las especies presentes en distintas regiones oceánicas. Por lo tanto, las guías regionales de identificación son importantes para desarrollar bases de datos con alta resolución taxonómica. En este trabajo, identificamos las especies de apendicularias presentes en 33 muestras epipelágicas de zooplancton recolectadas en varias localidades dentro de aguas costarricenses. 18 especies de apendicularias fueron identificadas, de las cuales 15 fueron recolectadas en el Pacífico y solo tres fueron recolectadas en el Caribe. Siete especies son registros nuevos para el Pacífico costarricense (Appendicularia sicula, Fritillaria charybdae, F. cf. pacifica, F. tenella, F. pellucida f. omani, Oikopleura fusiformis f. cornutogastra y Pelagopleura verticalis). Presentamos datos sobre la distribución en Costa Rica de cada especie, junto con una clave dicotómica para todas las especies reportadas previamente para los mares Interamericanos y el Pacífico Tropical Oriental.

Resumen en inglés

Although appendicularians are relevant primary consumers and are part of every zooplankton community, there is a lack of information on the species present in different ocean regions. Thus, regional identification guides are useful to develop datasets with high taxonomic resolution. Appendicularian species were identified in 33 epipelagic samples of zooplankton collected in several locations of Costarican waters. Eighteen appendicularian species were identified, of which 15 were found in the Pacific and only three in the Caribbean. Seven species are new records for Costa Rican Pacific waters (Appendicularia sicula, Fritillaria charybdae, F. cf. pacifica, F. tenella, F. pellucida f. omani, Oikoipleura fusiformis f. cornutogastra and Pelagopleura verticalis). Data for each species distribution in Costa Rica is presented together with a key for the identification of appendicularian species recorded in the Inter-American seas and the Eastern Tropical Pacific.


3.
- Artículo con arbitraje
Improved protocols to accelerate the assembly of DNA barcode reference libraries for freshwater zooplankton
Elías Gutiérrez, Manuel ; Valdéz Moreno, Martha (coaut.) ; Topan, Janet (coaut.) ; Young, Monica R. (coaut.) ; Cohuo Colli, José Ángel (coaut.) ;
Contenido en: Ecology and Evolution Vol. 8, no. 5 (2018), p. 3002-3018 ISSN: 2045-7758
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Resumen en: Inglés |
Resumen en inglés

Currently, freshwater zooplankton sampling and identification methodologies have remained virtually unchanged since they were first established in the beginning of the XX century. One major contributing factor to this slow progress is the limited success of modern genetic methodologies, such as DNA barcoding, in several of the main groups. This study demonstrates improved protocols which enable the rapid assessment of most animal taxa inhabiting any freshwater system by combining the use of light traps, careful fixation at low temperatures using ethanol, and zooplankton-specific primers. We DNA-barcoded 2,136 specimens from a diverse array of taxonomic assemblages (rotifers, mollusks, mites, crustaceans, insects, and fishes) from several Canadian and Mexican lakes with an average sequence success rate of 85.3%. In total, 325 Barcode Index Numbers (BINs) were detected with only three BINs (two cladocerans and one copepod) shared between Canada and Mexico, suggesting a much narrower distribution range of freshwater zooplankton than previously thought. This study is the first to broadly explore the metazoan biodiversity of freshwater systems with DNA barcodes to construct a reference library that represents the first step for future programs which aim to monitor ecosystem health, track invasive species, or improve knowledge of the ecology and distribution of freshwater zooplankton.


4.
- Artículo con arbitraje
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Integrative taxonomy of freshwater ostracodes (Crustacea: Ostracoda) of the Yucatán Peninsula, implications for paleoenvironmental reconstructions in the northern Neotropical region
Macario González, Laura ; Cohuo, Sergio (coaut.) ; Elías Gutiérrez, Manuel (coaut.) ; Vences, Miguel (coaut.) ; Pérez, Liseth (coaut.) ; Schwalb, Antje (coaut.) ;
Contenido en: Zoologischer Anzeiger Vol. 275 (July 2018), p. 20-36 ISSN: 0044-5231
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Resumen en: Inglés |
Resumen en inglés

A three-step integrative taxonomy approach combining molecular, morphological and ecological methods was successfully used to delimit species boundaries within three freshwater ostracode taxa of the Yucatán Peninsula (Mexico): Darwinulidae, Cypretta and Cypridopsis. These species groups were selected because they are well-suited paleobioindicators for late Pleistocene-early Holocene climatic reconstructions in the region, but their high inter-population morphological variability in recent communities represents a challenge for accurate transfer of information to fossil assemblages. As a first step, we analyzed the congruence of two genes of different inheritance, the mitochondrial COI (cytochrome c-oxidase subunit 1), and the nuclear 18S rDNA (small-subunit rDNA). Second, we tested the lineages discriminated for concordant differentiation in morphology, using morphometry of the carapace and typological analysis of the appendages. The third step assessed the association of occurrences and abundances of lineages to environmental variables. The integration of these methods revealed six hidden species within clades previously considered as a single widely distributed nominal species. Of these, Cypretta elongata sp. nov. and Alicenula yucatanensis sp. nov. are herein formally named and described given their morphological distinctness.

Three species of Cypridopsis: Cypridopsis sp. [Ca1 ECO-CH-Z-09396], Cypridopsis sp. [Ca2 ECO-CH-Z-09398], Cypridopsis sp. [Ca3 ECO-CH-Z-09401] and a species that may represent a new genus, Cyprididae sp. [Ca1 ECO-CH-Z-09402], are allocated to a confirmed candidate full species status. Cypretta maya and Cypretta sp., considered a priori as separate species, are recognized as a single species with phenotypic plasticity, attributed to its broad ecological tolerances. For paleoenvironmental reconstructions these results have relevance because the particular carapace morphology of the new species can be correlated with specific ecological traits, thus constituting a potential tool for refining interpretations of fossil assemblages.


5.
Artículo
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Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
Molina Acevedo, Isabel Cristina ;
Contenido en: Zootaxa Vol. 4480, no. 1 (September 2018), p. 1-125 ISSN: 1175-5326
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Resumen en: Inglés |
Resumen en inglés

Fifteen species of Marphysa classified in the Subgroup 1 Fauchald (1970) were reviewed and evaluated in a morphological analysis of the subgroup. It was found that 13 of these have a characteristic morphological pattern distinct from that of Marphysa sensu stricto; as a consequence, a new genus is proposed, Paucibranchia n. gen. This new genus includes the species that have branchiae restricted to a few chaetigers in the anterior region, maxillae I with a rounded falcal arch and outer edge with a straight base plus a curvature in the basal inner edge, dorsal cirri longer in the branchial region and in media-posterior region as long or longer than pre-branchial chaetigers, and the postchaetal lobe in the branchial region well developed, elongated. Paucibranchia n. gen. includes six new species (P. andresi n. sp., P. carrerai n. sp., P. gathofi n. sp., P. gilberti n. sp., P. miroi n. sp. and P. patriciae n. sp.), two species not formally named, and other 13 species previously included in Marphysa (P. adenensis (Gravier, 1900) n. comb., P. bellii (Audouin & Milne-Edwards, 1833) n. comb., P. cinari (Kurt-Sahin, 2014) n. comb., P. conferta (Moore, 1911) n. comb., P. disjuncta (Hartman, 1961) n. comb., P. fallax (Marion & Bobretzky, 1875) n. comb., P. gemmata (Mohammad, 1973) n. comb., P. kinbergi (McIntosh, 1910) n. comb., P. oculata (Treadwell, 1921) n. comb., P. purcellana (Willey, 1904) n. comb., P. sinensis (Monro, 1934) n. comb., P. stragula (Grube, 1878) n. comb., P. totospinata (Lu & Fauchald, 1998) n. comb.). One species previously classified in the subgroup, Marphysa striata (Kinberg, 1865), was considered indeterminate. Finally, some statistical analyses on size dependent features and an identification key for species of the new genus were included.


6.
- Artículo con arbitraje
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Resumen en: Inglés |
Resumen en inglés

A new caligid copepod species, Pupulina mantensis sp. n. is described based on female and male specimens collected from the gills of the myliobatid elasmobranch Aetobatus cf. narinari Euphrasen, 1790 captured off the Pacific coast of Ecuador. The new species has a unique combination of characters that diverges from its known congeners, including: (i) weakly developed posterolateral processes on the genital complex; (ii) large spines on posterior surface of maxilliped basis (iii) abdomen slender, unsegmented, approximately 1/2 length and 1/5 width of genital complex; (iv) third exopodal segment of leg II with single long naked spine adjacent to minute, naked lateral spine; (v) velum of leg II with adjacent patch of denticles; (vi) caudal rami slightly less than half the length of genital complex; (vii) post-antennal process with robust, posteriorly directed tine, sclerotized stump posterolaterally, and two multi-sensillate papillae located on or near base of process (viii) post-oral process oval. The overall prevalence of P. mantensis sp. n. on its host was 37.5% and its mean abundance was 1.87 specimens per host. This is the second record of the genus Pupulina from Ecuador and the second record of Pupulina infecting rays of the Myliobatinae genus Aetobatus, of the subfamily Myliobatinae, after its discovery on A. ocellatus in Australia, thus confirming this expansion of its previously known host range to a new elasmobranch subfamily.


7.
Artículo
Notes on halicyclops (Copepoda, Cyclopoida, Cyclopidae) from Colombia and the western Caribbean: a new record with a key to species of Group "B" sensu Rocha (1991)
Fuentes Reinés, Juan Manuel ; Suárez Morales, Eduardo (coaut.) ;
Contenido en: Revista Peruana de Biologia Vol. 25, no. 2 (May 2018), p. 141-146 ISSN: 1561-0837
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Resumen en: Español | Inglés |
Resumen en español

Se registran tres especies de microcrustáceos de aguas salobres; son copépodos ciclopoides del género Halicyclops procedentes de un sistema costero en el norte de Colombia: H. exiguus Kiefer, 1934, H. venezuelaensis Lindberg, 1954 y H. hurlberti Rocha, 1991. La primera especie tiene una variación intraespecífica que merece estudios más profundos. El hallazgo de la última especie es conocida sólo en el Pacífico Tropical Oriental, representa un registro nuevo para Colombia y la cuenca del Mar Caribe en el Atlántico tropical noroccidental. Con el hallazgo de H. hurlberti, la cantidad de especies de Halicyclops reconocidas en la región Neotropical y Colombia aumenta a 20 y 5, respectivamente. La diversidad regional del género probablemente está subestimada. Se proporciona una clave para las especies del género que pertenecen al grupo “B” sensu Rocha (1991).

Resumen en inglés

Three species of brackish waters microcrustaceans are herein recorded; they belong to the cyclopoid copepod genus Halicyclops and were collected from a coastal system in northern Colombia: H. exiguus Kiefer, 1934, H. venezuelaensis Lindberg, 1954, and H. hurlberti Rocha, 1991. The former has intraspecific variations that deserve further study. The finding of the latter species, previously known from the Eastern Tropical Pacific, represents a new record for Colombia and the Caribbean Sea Basin in the Northwestern Tropical Atlantic. With the finding of H. hurlberti the number of species of Halicyclops known from the Neotropical region and Colombia increases to 20 and 5, respectively. The regional diversity of the genus is probably underestimated. A key to species of the genus belonging to group “B” sensu Rocha (1991) is also provided.


8.
- Artículo con arbitraje
Redescription of Leocrates chinensis Kinberg, 1866 (Annelida, Hesionidae)
Wang, Zhi ; Qiu, Jian-Wen (coaut.) ; Salazar Vallejo, Sergio I. (coaut.) ;
Contenido en: Zoological Studies Vol. 57, no. 5 (February 2018), p. 1-11 ISSN: 1810-522X
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Resumen en: Inglés |
Resumen en inglés

Leocrates chinensis Kinberg, 1866 is the type species of Leocrates Kinberg, 1866 (Annelida, Hesionidae). Its original description, based upon a single specimen collected in Hong Kong waters, was brief; its illustrations were published almost 50 years afterwards, and the type specimen was dried out before it could be redescribed. The late Marian Pettibone redescribed the species in 1970 but her illustrations of the species were based on specimens from the Mediterranean Sea, the Virgin Islands, and Samoa, not Hong Kong. In order to define the morphological features, we herein redescribe this species based upon newly collected specimens from the type locality. This species is characterized by the following features: prostomium subrectangular with a posterior notch, lateral antennae slightly longer than palps, palps with palpophores about 2.5 times longer than palpostyles, anterior eyes twice larger than posterior ones, slightly emarginated, posterior ones circular, median antenna fixed slightly ahead of posterior eyes, nuchal organs C-shaped; pharynx with a prominent dorsal papilla, a mid-dorsal jaw and a mid-ventral jaw; first four chaetigers subbiramous, others biramous with neuroacicular lobes blunt, as long as wide, or longer than wide; notochaetae spinulose capillaries; most neurochaetae with blades bidentate, guards approaching subdistal tooth; a few neurochaetae with long, tapered hoods. A key to identify all species in the genus is also included.


9.
- Artículo con arbitraje
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Redescription of Phonotimpus separatus Gertsch & Davis, 1940 (Araneae: Phrurolithidae) and description of two new species of Phonotimpus from Mexico
Chamé Vázquez, David ; Ibarra Núñez, Guillermo (coaut.) ; Jiménez Jiménez, María Luisa (coaut.) ;
Contenido en: Zootaxa Vol. 4407, no. 2 (Apr. 2018), p. 213–228 ISSN: 1175-5326
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Resumen en español

Se redescribe a la hembra de Phonotimpus separatus Gertsch & Davis (la especie tipo de este género) a partir de un espécimen colectado en la localidad tipo y se describen dos especies nuevas de Phonotimpus de México: P. pennimani sp. nov. y P. talquian sp. nov. Se proporciona una descripción más detallada de P. separatus para apoyar mejor su discriminación con los taxa relacionados. Las dos nuevas especies están estrechamente relacionadas entre sí, machos y hembras de ambas especies comparten varios caracteres somáticos y de genitalia que no se encuentran en P. separatus. Finalmente, se discute la semejanza de las dos nuevas especies con P. separatus.

Resumen en inglés

The female of Phonotimpus separatus Gertsch & Davis (the type species of the genus) is redescribed from a specimen collected at the type locality, and two new species of Phonotimpus from Mexico are described: P. pennimani sp. nov. and P. talquian sp. nov. A more detailed description of P. separatus is provided to better distinguish them from related taxa. The two new species are closely related; males and females of both species share several somatic and genitalic characters not found in P. separatus. The resemblance of both new species to P. separatus is discussed.


10.
Artículo
Resumen en español

Vieja hartwegi fue descrita por Taylor y Miller en 1980, basada en 45 ejemplares juveniles y subadultos, sin embargo, esta especie muestra una importante variación en sus patrones de coloración durante el desarrollo ontogénico así como entre individuos. Adicionalmente, los datos morfológicos han demostrado la existencia de dos formas en V. hartwegi: la forma típica de cuerpo moderadamente profundo o ligeramente alargado provista de una banda mediolateral, y una forma reofílica de cuerpo alargado o ligeramente profundo y carente de banda mediolateral. Presentamos una redescripción de V. hartwegi, incluida la talla adulta así como de individuos en todo su ámbito geográfico, y también de la forma reofílica recientemente encontrada en los cursos superiores de la cuenca del río Grijalva. El conjunto de caracteres incluye coloración, merística, morfometría y algunos rasgos osteológicos. Vieja hartwegi es una especie polimórfica cuyas formas parecen segregarse en función de sus preferencias de hábitat y alimentarias

Resumen en inglés

Vieja hartwegi was described by Taylor and Miller in 1980 based on 45 juvenile and sub-adult specimens, but this species shows an enormous variation in coloration patterns during ontogenic development and between individuals. Additionally, morphological data have demonstrated the existence of two forms in V. hartwegi: the typical morph of a moderately deep to slightly elongated body shape with midlateral band, and a rheophilic morph with an elongated to slightly deep body shape and lack of midlateral band. Herein we redescribe V. hartwegi adding adults and individuals from broad geographic ranges, as well as a rheophilic morph recently discovered in the upper reaches of the Grijalva River basin in Mexico. The set of characters include coloration, meristic, morphometric and osteological features. Vieja hartwegi is a polymorphic species whose forms may be segregating because of habitat preferences and food habits.