Revista De Biologia Tropical最新文献

{"title":"Bryde’s Whale (Balaenoptera edeni brydei, Artiodactyla: Balaenopteridae) aggregation area in the Gulf of Chiriqui, Panama","authors":"Kristin Rasmussen, Daniel M. Palacios","doi":"10.15517/rev.biol.trop..v71is4.57284","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is4.57284","url":null,"abstract":"Introduction: Even though they occur worldwide in tropical and subtropical waters, Bryde’s whales (Balaenoptera edeni) are one of the most enigmatic of all the balaenopterid species. Previous research has reported the presence of Bryde’s whales off the Pacific coast of Panama, but little is known about their behaviors, abundance, and distribution in these waters.
 Objective: We report on an area in the Gulf of Chiriqui, Panama, where Bryde’s whales have regularly been sighted.
 Methods: We conducted small-boat surveys for marine mammals in the Gulf of Chiriqui between 2001 and 2022, during both the austral (26 300 km) and boreal (4 700 km) winter seasons.
 Results: We made 25 sightings of 33 Bryde’s whales. Sightings were made in nine of the years surveyed, and most were in the austral winter season (92 %). Most sightings were of one animal (80 %), and one sighting was of a mother-calf-escort trio. The aggregation area appears near the Contreras Islands, where most sightings (84 %) were made. We have photo-identified 14 individual whales using the dorsal fin. One individual has been sighted over two years (2014 and 2015), while the remaining have been documented only once. No photographic matches have been made to other areas.
 Conclusions: The persistent use of this aggregation area could indicate it is used for foraging, and the presence of a calf may indicate the area is also used for reproduction. The one inter-annual resight suggests this area may be used repeatedly by some of the same animals. Further research is needed off Panama to better understand this population of Bryde’s whales, its conservation status, and its relationship to the broader eastern tropical Pacific populations. Expanding the marine protected areas in the Gulf of Chiriqui may be warranted in order to protect this aggregation area.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term spatiotemporal distribution, abundance, and priority areas for manatees and calves (Trichechus manatus Sirenia: Trichechidae) in Guatemala","authors":"Ester Quintana-Rizzo, Oscar Machuca-Coronado, Heidy Amely Garcia","doi":"10.15517/rev.biol.trop..v71is4.57273","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is4.57273","url":null,"abstract":"Introduction: The Antillean manatee (Trichechus manatus manatus) is an endangered species found throughout the Caribbean, and the coastal waters of Central and northeastern South America. Their low numbers are the result of a variety of human-related pressures. A small population of manatees has been identified in Guatemala; however, their spatial and temporal dynamics remain unclear.&#x0D; Objective: To examine long-term trends in the spatiotemporal distribution and abundance of manatees in Guatemala. This included identification of priority areas for manatees including the presence of calves, assessing whether distribution areas are inside protected areas, and studying the relationship between manatee sightings and human activities.&#x0D; Methods: Nine years of standardized aerial surveys were conducted along the Atlantic coast (1992, 2005-2008, 2010-2011, 2014, 2022). Quantitative approaches to detect priority areas, specifically the Kernel density estimation and the Getis-Ord Gi* statistic, were used in the spatiotemporal analysis. A Spearman rank correlation analysis tested for significant correlations between human activities, coastline topographies, and manatee numbers along coastline segments. Manatee abundance across years, survey sections, and protected areas were also examined.&#x0D; Results: A total of 293 sightings and 518 manatees were observed including 476 adults (92 %) and 42 calves (8 %). Manatees were most frequently observed as solitary individuals (60 %). Most manatee (61 %) and calf (68 %) sightings occurred inside protected areas where several priority areas were identified. The two priority areas were Refugio de Vida Silvestre Bocas del Polochic (Bocas del Polochic) and Refugio de Vida Silvestre Punta de Manabique, which were identified as important manatee habitats in 1992. Bocas del Polochic had the highest manatee abundance of all protected areas (p < 0.05). However, a shift in manatee distribution was recorded in 2014, although the cause is unclear. No annual significant differences in manatee abundance were found over time (p = 1.0), but significant differences in abundance were detected between survey sections and protected areas (p < 0.05). Manatee numbers had positive significant correlations with ecological and human parameters. The highest correlation was between manatees and rivers (p < 0.01), and the weakest correlation was between manatees, motorboats, and fishing nets (p < 0.01).&#x0D; Conclusions: The results indicate that the local manatee population remained relatively stable for over 20 years, although changes in overall distribution were noted. It is unclear if the changes are temporary or permanent. As a sentinel species, manatee distribution shifts can be used as early warnings about the health of the environment and can depict current or potential impacts on individual- and population-level animal health.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First song description of the humpback whales, Megaptera novaeangliae (Balaenopteridae: Artiodactyla), breeding off Nicaragua","authors":"Joelle De Weerdt, Divna Djokic, Renata S. Sousa-Lima, Federica Pace","doi":"10.15517/rev.biol.trop..v71is4.57281","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is4.57281","url":null,"abstract":"Introduction: Humpback whales belonging to the Central American (CA) Distinct Population Segment breed off the Pacific coast of Nicaragua. Knowledge on this endangered population and its conservation status is limited.&#x0D; Objective: The aim of this study is to provide the first description of the CA humpback whale song off Nicaragua, which helps further understanding on the population’s dynamics.&#x0D; Methods: Acoustic recordings of songs were obtained during dedicated boat-based surveys at two locations on the Pacific coast of Nicaragua in 2018. Recordings were made from the boat using a portable system for a total of 23 hours and 56 minutes over 32 days from January to April 2018. A total of nine recordings of high enough quality for the song analysis were identified during this period from three different days at Padre Ramos (PR) (northern site) and four different days at San Juan del Sur (southern site). Song structure was described using standard humpback whale song elements, i.e. themes, phrases, and units.&#x0D; Results: A total of seven themes, seven phrases, and 19 unit types were identified. Three of the themes were common and frequently repeated in a song cycle while the others were less common in the repertoire and were recorded only during the middle of the season. Song theme order was variable, both within and across song sessions.&#x0D; Conclusions: This study provides the first song description of humpback whales along the Pacific coast of Nicaragua. Comparison of these songs with other datasets from the CA population and other breeding areas in the Northern Hemisphere could help understand the migratory patterns of these animals and the level of connectivity among populations since song can be socially learnt. Future data collection of humpback whale song recordings in Nicaragua is necessary to gain further understanding on the song structure variation within this population and the mechanisms of song transmission and dynamics across populations in the region.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population size and demographic parameters of pantropical spotted dolphin (Stenella attenuata graffmani) (Cetartiodactyla: Delphinidae) in Golfo Dulce, Costa Rica","authors":"Lenin Oviedo Correa, David Herra-Miranda, Juan Diego Pacheco-Polanco","doi":"10.15517/rev.biol.trop..v71is4.57287","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is4.57287","url":null,"abstract":"Introduction: The coastal form of pantropical spotted dolphins (Stenella attenuata graffmani) is commonly found along the Pacific coast of Costa Rica. Within Golfo Dulce, a fiord-like-embayment bordering the Osa Peninsula, pantropical spotted dolphins are sympatric with inshore bottlenose dolphins (Tursiops truncatus) and these marine predators provide an important source of revenue for local communities through boat-based tours.&#x0D; Objective: Here we estimated the population size and demographic parameters of the coastal pantropical spotted dolphins in Golfo Dulce.&#x0D; Methods: The study area was surveyed using non-random boat surveys. Upon encounter, dolphins were individually photo-identified using natural marks in their dorsal fins to estimate population abundance and survival using three emigration scenarios.&#x0D; Results: A total of 280 dolphins were photoidentified, 65 % of which were observed only once. A total of 30 models were produced, and only two were considered to be parsimonious. Both models explain seasonal apparent survival and its variation due to heterogeneity in capture-recapture probability, one under no emigration (ΔQAICc = 0.00) and the other under random emigration (ΔQAICc = 1.72). We deemed the latter to be a more realistic model as it better reflects our in-situ observations. Under this preferred model the population size of pantropical spotted dolphins in Golfo Dulce varied from 187.30 individuals (CI: 168.67 – 208.02, CV: 0.11) to 367.88 individuals (CI: 341.51 – 396.31, CV: 0.07), with no significant differences in abundance due to seasonality and very high apparent survival (S = 0.98, CI: 0.68 – 0.99, SE: 0.02).&#x0D; Conclusions: The number of identified dolphins and the proportion of individuals seen only once suggest the fluid movement of the population in and out of the gulf. However, the population size and demographic estimates are characterized by several identified individuals regularly recaptured inside the gulf. This group of dolphins appears to favor the inner basin as a critical foraging habitat. Given the increase of anthropogenic impacts within Golfo Dulce, future management and conservation efforts will require the recognition of an ecologically discrete population unit of coastal pantropical spotted dolphins within the gulf.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134907074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Killer whales, Orcinus orca (Artiodactyla: Delphinidae) in Guatemala: sighting records, photographic match, and interaction with Bryde’s whales, Balaenoptera edeni (Artiodactyla: Balaenoptera)","authors":"Jenniffer Ortiz-Wolford, Julio C. Romero, Andrea A. Cabrera","doi":"10.15517/rev.biol.trop..v71is4.57288","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is4.57288","url":null,"abstract":"Introduction: Killer whales (Orcinus orca) have a global distribution, but many low-latitude populations such as the Eastern Tropical Pacific are not well studied.&#x0D; Objective: Provide a review of killer whale sightings in the Exclusive Economic Zone of the Pacific of Guatemala, for which there has previously been little information.&#x0D; Methods: We reviewed national and regional publications, as well as anecdotal records of killer whale sightings in Guatemala.&#x0D; Results: We document five sightings spanning three decades (1990-2020). Four sightings were recorded between 2010 and 2020 and occurred within the San José Canyon or over the continental shelf. Group size varied from 1-15 individuals (x: 6 ± 4.3). We report a photographic match of three killer whale individuals from a single pod previously sighted in Cabo Corrientes, México, 11 years and 1 778 km apart. We also describe an interaction between a killer whale pod and two adult Bryde’s whales (Balaenoptera edeni), in which the Bryde’s whales followed a female killer whale and its calf.&#x0D; Conclusions: This study represents a contribution to the knowledge of killer whales in the region. It highlights the importance of data collection from both scientific and anecdotal records and supports the need of establishing national and regional monitoring and conservation programs for cetaceans.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134907075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diversity of freshwater hydrozoans from Neotropical region: an annotated inventory of species","authors":"María I. Deserti, Sergio N. Stampar, Fabián H. Acuña","doi":"10.15517/rev.biol.trop..v71is3.56470","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is3.56470","url":null,"abstract":"Introduction: Worldwide, six genera of the class Hydrozoa are recognized in continental waters: the cosmopolitan Hydra, the colonial Cordylophora and Pachycordyle, the medusae Craspedacusta and Limnocnida and the little polyp Calpasoma. Even though interest in cnidarians has grown in recent years, those restricted to freshwater continue to be relegated and there is even little published information on the ubiquity of certain species. In the Neotropical region, knowledge about its distribution is still very scarce.&#x0D; Methods: We reviewed the global literature on the subject and different online database platforms, presenting in this work a nomenclator, including discussions of the status of some species and provide the most recent identification key. &#x0D; Results: This analysis reveals that in 15 countries corresponding to the Neotropical region, the finding of freshwater hydrozoans has been reported. Panama, Brazil and Argentina are the countries with the highest number of reports.&#x0D; Conclusions: The heterogenity of environments where these genera have been found (from the Strait of Magellan to Mexico) offers a clear vision of their wide distribution and great adaptability to different environments. This study evidence the knowledge gap that still exists about the Neotropical freshwater hidrozoans and the importance of systematizing the current information about their distribution, biology and ecology, especially for those species considered invasive.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136095041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatio-temporal variation of seed rain between urban and rural fragments of humid tropical forests","authors":"Priscila Silva dos Santos, Kleber Andrade da Silva, Elcida de Lima Araújo, Danielle Melo dos Santos, Josiene Maria Falcão Fraga dos Santos, Gicélia Lira dos Prazeres, Elba Maria Nogueira Ferraz","doi":"10.15517/rev.biol.trop..v71i1.51290","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71i1.51290","url":null,"abstract":"Introduction: The type of land use surrounding the remnants of tropical forest may generate changes in the characteristics of plant populations and communities. Consequently, there may be a significant reduction in processes of pollination and diasporas dispersion. Therefore, causing changes in some parameters of seed rain. Objective: To characterize and compare seed density, species richness, floristic composition, habit, dispersal syndrome, and successional category of seed rain between urban and rural fragments of Atlantic Forest, in the 2015 and 2016 weather seasons. Methods: The study areas were defined after mapping and quantification of urban and rural occupations around the remnants, based on satellite images. In each fragment, were installed 36 collectors of 0.25 m2. The material was collected monthly during two consecutive years. Results: Seed rain richness was higher in the urban fragment during the rainy season in the two years, whereas it was similar between the fragments in the dry season. The seed density in the rural fragment was higher than in the urban during the rainy season; did not vary in urban between years or between seasons; and it was higher in the rural fragment in the rainy season of one year. There was a difference in the floristic composition of the seed rain between the fragments along time. The variations in the functional attributes of habit, dispersal syndrome, and successional category, were explained by the variables fragment, season, and year. Conclusions: Differences in the characteristics of the seed rain between the fragments might reflect the spatial and temporal heterogeneity, due to the diverse uses of the soil and external pressures (anthropogenic actions) present in the surroundings of the forest fragments and temporal variation in precipitation.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135133907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Histomorfología testicular y de la vejiga natatoria de Plagioscion magdalenae (Acanthuriformes: Sciaenidae); implicaciones en su taxonomía y distribución.","authors":"René Andrés Rojas-Luna, Carlos Arturo García-Alzate","doi":"10.15517/rev.biol.trop..v71i1.51157","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71i1.51157","url":null,"abstract":"Introducción: La Pácora (Plagioscion magdalenae) es una especie nativa de Colombia y en categoría de casi amenazada a nivel del país, de la que poco se conoce acerca de las estructuras con aporte etológico en su historia de vida. Objetivo: Analizar el desarrollo gonadal relacionado con la espermatogénesis de P. magdalenae y las implicaciones taxonómicas a partir de la vejiga natatoria. Métodos: Realizamos siete muestreos en dos periodos climáticos: el primero en octubre de 2019 a febrero de 2020 de recolectas bimensuales y la segunda de octubre 2020 a enero 2021 de recolectas mensuales; con el fin de abarcar cada momento del pulso de inundación de la cuenca baja del Magdalena. Describimos la histomorfología testicular y las características macroscópicas de la vejiga natatoria de la especie. Además, analizamos aspectos como relaciones morfométricas, clases de tallas por sexos, la proporción sexual y la época de madurez sexual. Resultados: Analizamos 142 ejemplares y 4 intervalos de tallas fueron establecidos (entre 145 y 575 mm LE), 66 fueron machos y 73 hembras con una proporción sexual global 1.1:0.9 (hembra-macho) sin diferencias. Los machos tienen testículos de tipo tubular, protegidos por el peritoneo que se encuentra recubierto por la musculatura sónica de la vejiga natatoria, la cual posee forma de “zanahoria” sin apéndices, con dos bandas laterales de músculos intrínsecos (promedio entre 6.75 cm de largo y 1.48 cm de ancho) unidos por una aponeurosis y que solo se encuentran en machos sexualmente maduros. Conclusión: Los testículos poseen una organización de tipo lobular irrestricto y la espermatogénesis se da en lóbulos seminíferos. La vejiga natatoria de la Pácora es simple y no tiene estructuras accesorias. La distribución geográfica de P. magdalenae se restringe a la cuenca del río Magdalena en Colombia.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135472100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Minimalist revision of Mesochorus Gravenhorst, 1829 (Hymenoptera: Ichneumonidae: Mesochorinae) from Área de Conservación Guanacaste, Costa Rica, with 158 new species and host records for 129 species","authors":"Michael J.  Sharkey, Austin Baker, Kathryn  McCluskey, Alex Smith, Suresh Naik, Sujeevan Ratnasingham, Ramya Manjunath, Kate Perez, Jayme Sones, Michelle D’Souza, Brianne St. Jacques, Mehrdad Hajibabaei, Jim Whitfield, Diana Arias, Alma Solis, Mark Metz, John Burns, Ronald Zuñiga, Eugenie Phillips-Rodriguez, Bernardo Espinoza, Isidro Chacon, Paul Hebert, Winnie Hallwachs, Daniel Janzen","doi":"10.15517/rev.biol.trop..v71is2.56316","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71is2.56316","url":null,"abstract":"Introduction: Species of Mesochorus are found worldwide and members of this genus are primarily hyperparasitoids of Ichneumonoidea and Tachinidae. &#x0D; Objectives: To describe species of Costa Rican Mesochorus reared from caterpillars and to a lesser extent Malaise-trapped. &#x0D; Methods: The species are diagnosed by COI mtDNA barcodes, morphological inspection, and host data. A suite of images and host data (plant, caterpillar, and primary parasitoid) are provided for each species.&#x0D; Results: A total of 158 new species of Mesochorus. Sharkey is the taxonomic authority for all. &#x0D; Conclusions: This demonstrates a practical application of DNA barcoding that can be applied to the masses of undescribed neotropical insect species in hyperdiverse groups.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135472762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estructura de las comunidades de briófitos en los complejos de páramos de Boyacá-Colombia","authors":"Diego A. Moreno-Gaona, María E. Morales-Puentes, Jorge E. Gil-Novoa, Jorge D. Mercado-Gómez","doi":"10.15517/rev.biol.trop..v71i1.53584","DOIUrl":"https://doi.org/10.15517/rev.biol.trop..v71i1.53584","url":null,"abstract":"Introducción: Los páramos de Boyacá cubren el 18.3 % de la superficie de Colombia, y son diversos en flora y fauna, además, registran una alta variabilidad climática, topográfica y de hábitats, que permite que estos ecosistemas sean centros de diversidad en el Neotrópico, y por tanto albergan una alta diversidad de briófitos. Objetivo: Analizar la estructura y composición de las comunidades de briófitos de los complejos de páramos de Boyacá. Métodos: a partir de información de literatura, bases de datos y revisión de herbarios, se evaluó la composición florística y la completitud de muestreo para los complejos de páramos y sustratos. Resultados: Analizamos 5 132 ejemplares, con 343 especies de musgos que fue el grupo más diverso, 256 hepáticas y dos antocerotes. El análisis de completitud de muestreo es representativo en un 98 %. Además, encontramos que la preferencia de sustratos es el terrícola con 409 especies y el cortícola con 341. La diversidad alfa del orden 0D mostró que Tota-Bijagual-Mamapacha (TBM) es el complejo más diverso con 368 especies, y Pisba (124) el menos diverso; el índice 1D mostró que el complejo (TBM) presentó 178 especies consideradas comunes, y la dominancia de especies (2D) fue mayor en el complejo Iguaque- Merchán con 119 taxa dominantes y en menor número Guantiva-La Rusia (105) y TBM (102). Conclusiones: El análisis de la diversidad beta mostró que el 62 % de la disimilitud en la composición de especies entre los complejos se debe al recambio de especies, igualmente sucede con la divergencia por sustratos que es del 51 %. Los briófitos en los páramos de Boyacá representan el 36.05 % de la diversidad colombiana, y el 2.96 % a nivel mundial.","PeriodicalId":21368,"journal":{"name":"Revista De Biologia Tropical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135471821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}