scholarly journals ANURANS FROM BARRA DE LA LAGUNA DE ROCHA (ROCHA, URUGUAY)

2019 ◽  
Vol 2 (2) ◽  
pp. 23
Author(s):  
Gisela Pereira ◽  
Ernesto Elgue ◽  
Raúl Maneyro
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Protected Area ◽  
New Records ◽  
Management Plan ◽  
Field Trips ◽  
Historical Records ◽  
Conservation Unit ◽  
Amphibian Species ◽  
Future Studies

We present a list of amphibian species from the protected area Barra de la Laguna de Rocha (BLR), Uruguay. Fifteen monthly three-day field trips were performed between September 2011 and March 2013. During each field trip, active searches of individuals and auditive samplings were performed at seven selected sites. We recorded 19 species of amphibians belonging to five families: Bufonidae (4 especies), Hylidae (5), Leptodactylidae (7), Microhylidae (1) y Odontophrynidae (2). Comparing these data with historical records (obtained from cientific collections and literature), eight species represented new records for the study site. The species richness in the area represents 39.6% of the total richness recorded for Uruguay. We highlight the presence of Melanophryniscus montevidensis (Philippi 1902), a locally and globally threatened species. Information on BLR's amphibian species composition could help in the implementation of the management plan for this conservation unit, as well as to stimulate future studies in the area.

scholarly journals Anuran species composition of Cancão Municipal Natural Park, Municipality of Serra do Navio, Amapá state, Brazil

ZooKeys ◽  
2018 ◽  
Vol 762 ◽  
pp. 131-148 ◽  
Author(s):  
Yuri Breno Silva e Silva ◽  
Carlos Eduardo Costa-Campos
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Protected Area ◽  
New Records ◽  
Sampling Effort ◽  
Red Lists ◽  
Anuran Species ◽  
Natural Park ◽  
Considerable Portion ◽  
Data Deficient

In this study, the first survey of anuran species in the Cancão Municipal Natural Park is presented, a protected area of approximately 370 hectares of Amazonian forest located in the northwest center region of the state of Amapá, Brazil. The work was performed during the dry and rainy season, through active visual and auditory survey, totaling 216 man hours of sampling effort. Forty-nine species of anuran amphibians were recorded in the Cancão Municipal Natural Park, including three new records:Hyalinobatrachiumiaspidiense, Pristimantiscf.ockendeni, andScinaxgarbei. Three species,Hyalinobatrachiumiaspidiense,Ameeregapulchripecta, andAnomaloglossusbaeobatrachus, are listed as Data Deficient and one is listed as Vulnerable (Atelopushoogmoedi) according red lists of IUCN. The rarefaction curve cumulative species did not reach an asymptote, indicating that site has potential for species that have not yet been recorded. Nine species were represented by only one individual and were considered rare in the studied environments, eight species were defined as common, and the 32 remaining species were classified as having intermediary abundance. Our data indicated that Cancão Municipal Natural Park contains a considerable portion of the anurans species richness of Amapá state, turn the area into a place of great importance for the conservation of the anurans of the Eastern Amazon.

scholarly journals FLORÍSTICA DE DIATOMEAS EPIFITAS EN UN MANCHÓN DE MACROALGAS SUBTROPICALES

2006 ◽  
Vol 21 (1-2) ◽  
pp. 11
Author(s):  
D. A. Siqueiros Beltrones ◽  
O. U. Hernández Almeida
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
New Records ◽  
Diatom Assemblages ◽  
Epiphytic Diatoms

Se determinó la composición de especies de diatomeas epifitas en macroalgas de distintos taxa en una zona subtropical. Para ello, en un manchón ubicado en la playa Punta Roca Caimancito, B. C. S., se tomaron muestras de las macroalgas sobresalientes, en junio y diciembre de 2001, y abril, mayo y julio del 2002. Se identificaron 13 especies de macroalgas, de las cuales: Hydroclathrus clathrathus, Laurencia pacifica, L. johnstonii, Padina mexicana, P. caulescens y Codium spp. fueron las más conspicuas. El examen de la flora epifítica redituó 278 taxa de diatomeas, que es la máxima riqueza registrada para este tipo de sustrato, y de los cuales 44 son nuevos registros para la región. De los 75 géneros reconocidos de diatomeas, los mejor representados fueron: Mastogloia (25 especies), Amphora (23), Navicula (23), Nitzschia (22), Cocconeis (22), Lyrella (12) y Achnanthes (11). Los taxa más abundantes fueron Cocconeis disculus y C. dirupta. El número de taxa de diatomeas por especie hospedera también fue alto y varió entre 89 ( Codium spp.) y 143 ( L. pacifica), aunque las diferencias podrían deberse al número de especímenes procesados por especie de macroalga. Floristics of epiphytic diatoms in a patch of subtropical macroalgae The species composition of epiphytic diatom assemblages found on different taxa of subtropical macroalgae was determined. Samplings were carried out in a macroalgae bed located in Punta Roca Caimancito beach, B. C. S. in june and december 2001, and on april, may and july 2002, collecting the most frequent macroalgae taxa. The most conspicuous out of twelve macroalgae taxa were: Hydroclathrus clathrathus, Laurencia pacifica, L. johnstonii, Padina mexicana and P. caulescens. A total of 278 diatom taxa were recorded. This is the largest species richness recorded for this type of substrate, and out of which 44 are new records for the region. Out of 75 genera recognized the best represented were: Mastogloia (25 species), Amphora (23), Navicula (23), Nitzschia (22), Cocconeis (22), Lyrella (12) and Achnanthes (11). The most abundant taxa were Cocconeis disculus and C. dirupta. The number of diatom taxa per macroalgae species was also high, ranging from 89 (Codium spp.) to 143 (L. pacifica). Albeit, this difference could be attributed to the number of specimens collected per macroalga species.

Reef fishes of the Mazunte-Bahías de Huatulco reef track, Oaxaca, Mexican Pacific

Zootaxa ◽  
2010 ◽  
Vol 2422 (1) ◽  
pp. 53 ◽  
Author(s):  
RAMÓN ANDRÉS LÓPEZ PÉREZ ◽  
IMELDA LÓPEZ PÉREZ-MALDONADO ◽  
ARIADNA MONTSERRAT LÓPEZ ORTIZ ◽  
LINDA MARGARITA BARRANCO SERVIN ◽  
JAVIER BARRIENTOS VILLALOBOS ◽  
...  
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
New Records ◽  
Reef Fishes ◽  
Visual Census ◽  
Mexican Pacific ◽  
Reef Communities ◽  
Census Techniques

Although fish are one of the most abundant, conspicuous and structurally important inhabitants of reef systems, the group has remained largely ignored from biodiversity accounts on the Oaxaca reef track. Reef icthyofauna composition at 10 sites between Mazunte and Isla Montosa was gathered through stationary visual census techniques during 19982008. A total of 112 species belonging to 81 genera, 40 families and 11 orders were recorded. Species richness of the study area is higher than similar reef communities in the Mexican Pacific. Thirty species represent new records for the study area, and some discrepancies were found between local (this study) and regional accounts. Our data suggest that species composition in the area is still incomplete.

scholarly journals Floristic composition and diversity of Amazonian rainforest bryophytes in the state of Acre, Brazil

2003 ◽  
Vol 33 (3) ◽  
pp. 399-414 ◽  
Author(s):  
Denise Pinheiro da Costa
Keyword(s):  
Species Richness ◽  
New Records ◽  
Floristic Composition ◽  
Field Trips ◽  
The State ◽  
Collection Data ◽  
Amazonian Rainforest ◽  
Amazonian Brazil

Bryophyte diversity in Amazonian Brazil is high, presently recorded at 514 species distributed among 36 families and 89 genera. Comparisions of species richness among the Amazonian states of Brazil suggests that the bryoflora of Acre is still underestimated, presently recorded at 106 species distributed among 33 families and 63 genera. After two field trips, the diversity increased 50% showing that the bryoflora is still poorly known. Collection data and comments on morphology, ecology and distribution are given for sixty-two species of bryophytes collected in the state of Acre, Brazil, which are new (fifty-two species) or interesting floristic records (ten species). Microlejeunea crenulifolia (Gottsche) Steph. and Stictolejeunea balfourdii Mitt. are new records for Brazil and fifty species are new records for Acre.

scholarly journals Βenthic hydrozoan assemblages as potential indicators of environmental health in a Μediterranean Μarine protected area

2020 ◽  
Vol 21 (1) ◽  
pp. 36
Author(s):  
IZZET NOYAN YILMAZ ◽  
LUIS MARTELL ◽  
NUR EDA TOPCU ◽  
MELEK ISINIBILIR
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Comparative Study ◽  
Marine Protected Areas ◽  
Protected Area ◽  
Life Histories ◽  
Anthropogenic Impact ◽  
Ecosystem Health ◽  
Qualitative Composition ◽  
The Comparative Study

The comparative study of marine benthic hydrozoan assemblages can improve our understanding of environmental and ecological conditions in marine protected areas (MPAs) such as the large Mediterranean MPA of Datça-Bozburun, where important prospects for future intensive tourism development exist. The analysis of such assemblages may help managers detect changes in important parameters of ecosystem health within this MPA. In this study we compared the hydrozoan assemblages occurring on hard (rocky) and soft (Posidonia meadows) bottoms from stations belonging to three different conditions: i) small marinas (medium anthropogenic impact), ii) yacht stopovers (low impact), and iii) unspoiled sites (no impact) in the southern part of the Datça Peninsula during summer and winter 2015 and 2016. Significant differences in the structure, species composition and richness of benthic hydrozoans among the sampling sites were detected. In both seasons, hydroid assemblages in medium-impact sites significantly differed from little-impact and no-impact sites in terms of qualitative composition. Large structural species were widely represented in all hard-bottomed sampling sites, but small inconspicuous taxa with diverse life histories were much less abundant at the medium impacted sites. Species richness and diversity in Posidonia meadows was much higher in little- and no-impact sites, where highly specific hydroid epibionts were abundant.

scholarly journals Phanerogamic flora and vegetation of Itacolomi State Park, Minas Gerais, Brazil

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Maria Cristina T. Braga Messias ◽  
◽  
Hildeberto Caldas de Sousa ◽  
Viviane Renata Scalon ◽  
Miriam B. Roschel ◽  
...  
Keyword(s):  
Species Richness ◽  
Management Plan ◽  
Minas Gerais ◽  
Field Trips ◽  
Mining Activities ◽  
Vegetation Types ◽  
Campos Rupestres ◽  
Related Research ◽  
Disturbed Areas ◽  
Quadrilátero Ferrífero

Abstract Located in the municipalities of Ouro Preto and Mariana, in the Quadrilátero Ferrífero (QF) of Minas Gerais, the Itacolomi State Park (ISP) shelters more than 7,000 ha of remnants of Atlantic Forest and campos rupestres. The QF region has high biodiversity and is being highly impacted, mainly by mining activities. Aiming to organize the available floristic information and to support related research, this study presents the list of phanerogamic species of the ISP and the major vegetation types. This survey was carried out from October/1992 to July/2006, by monthly field trips. Besides authors´ personal collections, other records were assembled from herbarium databank. A total of 1623 taxons belonging to 122 families were listed. The families with higher species richness were Asteraceae, Fabaceae, Melastomataceae, Poaceae and Orchidaceae. The vegetation is represented by campos rupestres (51% of the total area), followed by montane forests (40%) and anthropogenic disturbed areas (9%). The greatest species richness occurs in campos rupestres. Several species are threatened and/or endemic. The knowledge of phanerogamic flora of ISP can help the Management Plan of this Unit of Conservation. It is also a contribution for future-related studies of the flora of ISP, Minas Gerais and Brazil.

scholarly journals The amphibians of the state of Rio de Janeiro, Brazil: an updated and commented list

2018 ◽  
Vol 58 ◽  
pp. 5 ◽  
Author(s):  
Thiago Arnt Dorigo ◽  
Davor Vrcibradic ◽  
Carlos Frederico Duarte Rocha
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
New Taxa ◽  
Rio De Janeiro ◽  
New Records ◽  
The State ◽  
Amphibian Species ◽  
High Species Richness ◽  
Forest Biome

The amphibian fauna of the state of Rio de Janeiro, in southeatern Brazil, is characterized by high species richness and rates of endemism, and is still insufficiently known. A first list of amphibian species with occurrence in the state was published in 2004 and reported 166 taxa, but since then many new records, descriptions of new taxa, and revalidations and synonymizations of species have consistently improved the knowledge about the state’s amphibian biodiversity. Thus, a review and update of that list was deemed necessary. We herein present an updated and commented list of amphibian species occurring in the state of Rio de Janeiro based on a survey of the literature. We recorded the occurrence of a total of 201 species of amphibians (197 anurans and four caecilians) in Rio de Janeiro, with 54 of them (ca. 27%) considered to be endemic of the state. Our study presents an increase in species richness of 21% since the publication of the previous list, indicating a consistent advance in knowledge of the composition of the amphibian fauna in the state. In spite of its relatively small territorial extension (total area ca. 43,800 km²), the state of Rio de Janeiro contains nearly 20% of the amphibian species known to occur in Brazil and around 40% of those occurring in the Atlantic Forest biome. Thus, that state constitutes an important reservoir of amphibian biodiversity in the Atlantic Forest biome and in Brazil, as a whole.

scholarly journals Richness of Thalloid Liverworts in Bilaspur, Achanakmar-Amarkantak Biosphere Reserve and Lafa hills, Chhattisgarh (India)

2019 ◽  
Vol 6 (3) ◽  
pp. 287-298
Author(s):  
Ashvini Kumar Dixit ◽  
Mery Aradhna Kerketta
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Protected Area ◽  
Regional Scale ◽  
Biosphere Reserve ◽  
High Elevation ◽  
Current Status ◽  
Aquatic Habitats ◽  
Microhabitat Distribution ◽  
High Species Richness

A survey of bryophyte diversity in Bilaspur District (Chhattisgarh) and nearby areas has brought to light an unexpectedly rich bryoflora. Liverworts have a great diversity which includes both leafy and thalloid forms. Presence of 24 species of thalloid liverworts was recorded collectively from protected area Achanakmar-Amarkantak Biosphere reserve (AABR) as well as other regions of Bilaspur district and Lafa Hills, Korba. The main objective of this study is to evaluate the influence of elevation on the diversity of bryophytes in regional scale. For the study each location was mapped zone wise on 21 micro plots ranging between altitudes 230 m to 1011 m. Using presence or absence of species, bryophyte species richness was compared at each altitude. These zones exhibit high species richness at mid–high elevation (around 525-1000 m) with an average 4-6 species of distribution rate. It is observed 83% of liverwort population as terrestrial, 10% as epiphytic, 7% grows in aquatic habitats and below 5% recorded as ubiquitous at various altitude ranges. Species composition shows variability along the elevation and microhabitat distribution which shows homogeneity of liverwort population. This study reveals the current status of liverworts in Bilaspur region.

scholarly journals Ichthyofauna from the Parque Nacional da Serra dos Órgãos and its surrounding areas, Rio de Janeiro state, Brazil

Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1696
Author(s):  
Geysa Da Silva Camilo ◽  
Bianca De F. Terra ◽  
Francisco Gerson De Araújo
Keyword(s):  
Species Richness ◽  
Rio De Janeiro ◽  
Fish Assemblages ◽  
Buffer Zone ◽  
Management Plan ◽  
Adjacent Area ◽  
Conservation Unit ◽  
Composition And Structure ◽  
Surrounding Areas ◽  
Janeiro State

This study provides a list of freshwater fishes of the Parque Nacional da Serra dos Órgãos (PARNASO; Rio de Janeiro state, Brazil) and its surrounding areas. Fish samplings were performed by electrofishing during the dry season (2010 –2011) in three different areas: 1, inside of the PARNASO (2 sites); 2, in the buffer zone (4 sites); and 3, in adjacent areas (8 sites). A total of 47 fish species in 13 families and six orders were recorded. Fish composition within the limits of the PARNASO differed from that recorded in the adjacent area, with the latter having comparatively higher species richness. The buffer area had intermediate ichthyofauna composition between the two other areas. This study enhanced knowledge on the composition and structure of the fish assemblages in PARNASO, by recording the occurrence of six new species within the park that were not included in the Management Plan of this Conservation Unit.

scholarly journals PROSPECTIVE FLORISTICS OF EPIPHYTIC DIATOMS ON RHODOPHYTA FROM THE SOUTHERN GULF OF MEXICO

2017 ◽  
Vol 32 (2) ◽  
pp. 35
Author(s):  
David Alfaro Siqueiros Beltrones ◽  
Yuriko Joscelin Martínez - Hernández
Keyword(s):  
Species Richness ◽  
Gulf Of Mexico ◽  
Species Composition ◽  
Light Microscopy ◽  
Red Algae ◽  
New Records ◽  
Similarity Measurement ◽  
Diatom Assemblages ◽  
Epiphytic Diatoms ◽  
Southern Gulf Of Mexico

Studies on epiphytic diatoms can be considered somewhat lacking worldwide, mainly because of the enormous scientific research potential around them, and there is still much to do concerning floristics alone. Particularly for the Mexican coasts, mainly in the southern Gulf of Mexico. Thus, our objective was to determine the epiphytic diatom floristics for several species of Rhodophyta from the coast of Veracruz state (México). Diatoms sampled from specimens of six taxa of Rhodophyta were observed in permanent mountings, under light microscopy. A total 115 diatom taxa were identified, that support our expectancy of a potential species richness much higher on red algae hosts. A presence absence similarity measurement suggested that a single diatom assemblage was hosted in the six red algae taxa. The species composition is highly similar to epiphytic diatom assemblages from NW Mexico, albeit six taxa are new records for Mexican littorals. A photographic catalog of the identified epiphytic diatoms is provided.Florística prospectiva de diatomeas epifitas sobre Rhodophyta en el Sur del Golfo de México Los estudios sobre diatomeas epifitas a nivel global se pueden considerar escasos, principalmente por el gran potencial científico que representan. Una consecuencia de ello es lo mucho que falta por hacer tan solo en florística a lo largo de las costas mexicanas, particularmente al sur del Golfo de México. Así, el objetivo de nuestro estudio fue determinar la florística de diatomeas epifitas en varias especies de Rhodophyta de la costa del Estado de Veracruz, México. Se identificaron diatomeas epifitas en talos de seis taxa en preparaciones permanentes bajo microscopía de luz. La lista florística de diatomeas redituó 115 taxa, lo que respalda nuestra expectativa de una riqueza de especies potencial mucho mayor en Rhodophyta hospederos. La similitud (Bray-Curtis) con base en presencia/ausencia de taxa sugiere que una sola asociación de diatomeas epifitas se distribuye entre los seis taxa de algas rojas hospederos. La composición de especies es muy similar a la de asociaciones de diatomeas epifitas del NW de México, aunque seis taxa son nuevos registros para litorales mexicanos. Se incluye un catálogo fotográfico de los taxa de diatomeas epifitas identificadas.

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