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The Western Amazonian Dwarf Porcupine, Coendou ichillus Voss & Da Silva, 2001, is poorly known in South America. The species is known only from eight localities in the Amazon and Orinoquia regions of Brazil, Colombia, Ecuador, and Peru. In Colombia, it is known from one locality in the Orinoquía region, based on a specimen collected in 1956. We present a new distribution record which adds information about the presence of C. ichillus in the Napo Moist Forests ecoregion, in the Department of Putumayo, Amazon region of Colombia. We suggest that C. ichillus is more widely distributed in the Amazon region of the country. However, based on the number of known records to date, C. ichillus is the rarest species of porcupine.

Aspects about the feeding behavior of the Laughing falcon (Herpetotherescachinnans)article remain poorly investigated with scarce reports of identified species ingested by this bird. Worse still, information describing how this bird ingests poisonous snakes is not known. Although this falcon eats snakes, there are no reports of feeding on Bothropsatrox. In this work, I describe this predation event and analyze how roads seem to be a potential hunting strategy that H.cachinnans exploit to prey on snakes.

Phimophisguerini Duméril, Bibron & Duméril, 1854 is a Xenodontinae snake distributed in Argentina, Brazil and Paraguay. In Brazil, the species is broadly distributed, occurring mainly in open areas of the Cerrado, but also in the Amazon, Atlantic forest and Caatinga. We provide a new record for this species from the municipality of Santarém in the western portion of the state of Pará (Brazil). Five specimens were collected in a small area covered with Amazonian Savanna vegetation. We also provide the description of the morphological variation for the collected specimens. The new record extends the northern limit of the distribution by some 640 km (from Floresta Nacional de Carajás, Parauapebas municipality, eastern Pará). The record from Santarém provides a third locality for P.guerini within the Amazon biome and supports the hypothesis of a past ecological corridor linking the Cerrado and the open habitats within the Amazon.

This is the first report demonstrating that Boana tetete and B. maculateralis occur in the Colombian Amazon Basin. These specimens were identified previously as Boana fasciata; however, morphology and current distribution records show that the specimens were misidentified. These new records extend the known distribution of the B. tetete 630 km north from nearest locality in the Ecuadorian Amazon and 420 km for B. maculateralis. An updated map of current distribution and ecoregional areas in Amazonian is provided.

An Amazonian savanna in northern Brazil known as the Cerrado of Amapá is under imminent threat from poor land-use planning, the expansion of large-scale agriculture and other anthropogenic pressures. These savannas house a rich and unique flora and fauna, including endemic plants and animals. However, the area remains under-sampled for most taxa, and better sampling may uncover new species. We estimate that only ~9.16% of these habitats have any kind of protection, and legislative changes threaten to further weaken or remove this protection. Here we present the status of knowledge concerning the biodiversity of the Cerrado of Amapá, its conservation status, and the main threats to the conservation of this Amazonian savanna. To secure the future of these unique and imperilled habitats, we suggest urgent expansion of protected areas, as well as measures that would promote less-damaging land uses to support the local population. Made available in DSpace on 2017-11-17T23:15:15Z (GMT). No. of bitstreams: 1 CPAFAP2017Biodiversitythreatsandconservation.pdf: 2128567 bytes, checksum: 5cb4b5c05db3b0c07fc15084b072beb1 (MD5) Previous issue date: 2017-10-26

Notodiaptomus cannarensis sp. n. is described from a reservoir on the Amazonian slope of the Ecuadorian Andes. The new species is unique among diaptomid calanoid copepods in the display of hypertrophied, symmetrical wing-like extensions at each side of the female composite genital somite. Furthermore, it displays a female urosome reduced to only two somites due to the incorporation of abdominal somites III and IV to the composite genital double-somite, and a male right fifth leg with the outer spine of second exopodal segment recurved and implanted proximally on margin. It differs from any other Notodiaptomus in the display of a large rectangular lamella on proximal segment of exopod of male right fifth leg. The species is currently known only from Mazar reservoir, a eutrophic water body placed above 2127 m a.s.l. on the River Paute (Cañar Province; southern Ecuador), where it is the most common crustacean in the water column. © Miguel Alonso et al.

A new Diaptomidae species is presented from the Neotropical region. It was found in two Amazonian lakes, Ressaca and Arapujá, both in Pará State, Brazil. The lakes are 400 km apart and threatened by the building of reservoirs for hydropower generation and pollution by human settlements. The new species resembles N. paraensis Dussart & Robertson, 1984, but it can be distinguished from this species and other congeners in having a special process on the fifth leg basis of the male, by the place of insertion of lateral spine in the last segment of right P5 of male, the shape and relationship between length and width of segments of male and female P5 exopodite 2 with stout inner process bearing short setules and outer small spine, exopodite 3, with two terminal setae, outer smaller; endopodite 1-segmented with one subterminal seta and oblique comb of spinules, the presence of a line of dorsal spinules at the distal margin of thoracic somites in both sexes. A brief comparison with other Notodiaptomus species is presented in the discussion.

Hyalinobatrachium is a behaviorally and morphologically conserved genus of Neotropical anurans, with several pending taxonomic problems. Using morphology, vocalizations, and DNA, a new species from the Amazonian lowlands of Ecuador is described and illustrated. The new species, Hyalinobatrachium yaku sp. n., is differentiated from all other congenerics by having small, middorsal, dark green spots on the head and dorsum, a transparent pericardium, and a tonal call that lasts 0.27–0.4 s, with a dominant frequency of 5219.3–5329.6 Hz. Also, a mitochondrial phylogeny for the genus is presented that contains the new species, which is inferred as sister to H. pellucidum. Conservation threats to H. yaku sp. n. include habitat destruction and/or pollution mainly because of oil and mining activities.

Background. Despite the importance of inland fishery, assessments of exploited inland stocks have relied on data-deficient databases, mainly in developing countries. In this paper, we employed two distinct analytical methods to evaluate the stock status of Prochilodus nigricans Spix et Agassiz, 1829, the most important fish in the Amazonian freshwater landings. In this study, we intended to test the sustainability of small-scale fisheries comparing two different methods. Materials and methods. The population dynamic of P. nigricans was studied using length and weight data for fish caught in Manacapuru Lake and the lower stretch of the Solimões River. Estimates of maximum sustainable yield and corresponding fishing mortality for 2012 and 2013, using Beverton–Holt curve, indicated an overfishing status for both years. At the same region, fishers were interviewed and their knowledge on the P. nigricans stock status was assessed using a stock assessment methodology based on fishers’ knowledge, known as ParFish. Results. Both yield per recruit curves employed to assess the stock status of P. nigricans in 2012 and 2013 and ParFish approach indicate an overfishing status, but ParFish also found a high uncertainty level around 47%. Conclusion. The use of ParFish algorithm and traditional knowledge can provide qualitatively similar results to conventional models, such as the Beverton–Holt approach. The ParFish approach shows the advantage including confidence intervals to its estimates.

The monotypic leucochrysine genus Nuvol was previously known from three specimens of Nuvol umbrosus Navás, collected in the Atlantic Forest region of Brazil. For many years these specimens have been missing, and the genus has remained without a modern description. Here, the species is redescribed based on two newly discovered specimens (females) from the Amazonian region. The female terminalia are relatively simple, except for the subgenitale, which is enlarged, folded into two sections, and heavily sclerotized. Unique aspects of the wing venation and the unusual pattern of banding on the wings support the retention of Nuvol as a valid genus within the Leucochrysini. There are differences between the Amazonian specimens studied here and the earlier descriptions based on specimens from the Atlantic Forest. These differences may indicate the presence of two distinct, geographically separated species within the genus. However, largely because we do not know the sexes of the earlier specimens, we are treating the differences discovered in the two female specimens as expressions of intraspecific variation.

A new species of Harmonicon F. O. Pickard-Cambridge, 1896 (Araneae, Dipluridae) is described, from a medium-sized lateritic cave in Parauapebas, Pará, Brazil. The male holotype and only specimen known of H. cerberus sp. n. was found near the entrance of Pequiá cave. This taxon is the fourth species described and the southernmost record for the genus. The new species displays some troglomorphic characteristics, such as reduction and merging of the posterior median and both pairs of lateral eyes and pale yellow to light brown coloration. Both characters are diagnostic when compared to the normal separated eyes and reddish to dark brown of other Harmonicon species. Other diagnostic characteristics are isolated, long, rigid setae distal to the lyra and the shape of the copulatory bulb. This is the second troglomorphic mygalomorph species from Brazil and the first from the Amazonian region.

The Carajás National Forest is located in the Amazonian region, Pará State, Brazil and is part of a mosaic of conservation units comprising over one million hectares. This region has been explored for its mineral reserves, but knowledge of the distribution of animals and plants is lacking. The objective of this paper is to provide a list of the medium and large-sized mammals recorded from the Carajás NF. We used four methods to record mammals: linear transects, camera traps, records of road-killed animals, and opportunistic observations. We recorded 45 species distributed in nine taxonomic orders, eight of them currently on the Brazilian list of threatened species and seven in the IUCN red list. The area has high mammalian diversity and holds 56% of the threatened species known for the State, confirming that the study area is correctly categorized as Extremely High Priority for the conservation of Brazilian biodiversity.

[EN] We review the systematics of the Hypsiboas calcaratus species complex, a group of widely distributed Amazonian hylid frogs. A comprehensive analysis of genetic, morphological, and bioacoustic datasets uncovered the existence of eleven candidate species, six of which are confrmed. Two of them correspond to Hypsiboas fasciatus and Hypsiboas calcaratus and the remaining four are new species that we describe here. Hypsiboas fasciatus sensu stricto has a geographic range restricted to the eastern Andean foothills of southern Ecuador while Hypsiboas calcaratus sensu stricto has a wide distribution in the Amazon basin. Hypsiboas almendarizae sp. n. occurs at elevations between 500 and 1950 m in central and northern Ecuador; the other new species (H. maculateralis sp. n., H. alfaroi sp. n., and H. tetete sp. n.) occur at elevations below 500 m in Amazonian Ecuador and Peru. The new species differ from H. calcaratus and H. fasciatus in morphology, advertisement calls, and mitochondrial and nuclear DNA sequences. Five candidate species from the Guianan region, Peru, and Bolivia are left as unconfirmed. Examination of the type material of Hyla steinbachi, from Bolivia, shows that it is not conspecific with H. fasciatus and thus is removed from its synonymy. © M.A. Caminer, S.R. Ron., [ES] Revisamos la sistemática del complejo de especies Hypsiboas calcaratus, un grupo de ranas hílidas de amplia distribución en la Amazonía. Un análisis exhaustivo de datos genéticos, morfológicos y bioacústicos revelaron la existencia de once especies candidatas, de las cuales seis son confirmadas. Dos de ellas corresponden a Hypsiboas fasciatus e Hypsiboas calcaratus y las cuatro restantes son especies nuevas que describimos aquí. Hypsiboas fasciatus sensu stricto tiene un rango geográfico restringido a las estribaciones orientales de los Andes del sur del Ecuador, mientras que Hypsiboas calcaratus sensu stricto tiene una distribución amplia en la cuenca amazónica. Hypsiboas almendarizae sp. n. se encuentra a alturas entre los 500 y 1950 m en el centro y el norte del Ecuador, mientras que las otras nuevas especies (H. maculateralis sp. n., H. alfaroi sp. n. y H. tetete sp. n.) se encuentran a elevaciones bajo 500 m en la Amazonía de Ecuador y Perú. Las nuevas especies difieren de H. calcaratus e H. fasciatus en morfología, cantos de anuncio y secuencias de ADN mitocondrial y nuclear. Cinco especies candidatas de la región de las Guayanas, Perú y Bolivia quedan como no confirmadas. La examinación del material tipo de Hyla steinbachi indica que no es conespecífica con H. fasciatus y por lo tanto se remueve de su sinonimia.

We present herein the first record of the small phyllostomine Trinycteris nicefori for the Brazilian state of Rondônia. The specimens were mist netted near the banks of Rio Madeira, in the municipality of Porto Velho. The capture area can be classified as dense ombrophilous forest of the Amazonian biome. Morphometric and qualitative data are presented, along with a table comparing Triniycteris to the two other similar genera, Glyphonycteris and Lampronycteris. The disjunct distribution of T. nicefori is briefly discussed.

Dinoponera Roger 1861 has been revised several times. However, species limits remain questionable due to limited collection and undescribed males. We re-evaluate the species boundaries based on workers and known males. We describe the new species Dinoponera hispida from Tucuruí, Pará, Brazil and Dinoponera snellingi from Campo Grande, Mato Grosso do Sul, Brazil and describe the male of Dinoponera longipes Emery 1901. Additionally, we report numerous range extensions with updated distribution maps and provide keys in English, Spanish and Portuguese for workers and known males of Dinoponera.

Three new species of Cerambycidae are described from the Brazilian Amazonian region: Psapharochrus bezarki (Lamiinae, Acanthoderini); Xenofrea ayri (Lamiinae, Xenofreini); and Mecometopus wappesi (Cerambycinae, Clytini). Mecometopus wappesi is added to a previous key.

Ateleutina is a small subtribe of Cryptinae (Ichneumonidae) composed of two genera: Ateleute Förster and Tamaulipeca Kasparyan. Neither of the genera includes species described from South America. In this article five new species of Ateleute (A. ashaninka sp. n. and A. amarakaeri from Peru, A. shuar sp. n. from Ecuador and Peru, and A. huaorani sp. n. and A. kichua sp. n. from Ecuador) and three new species of Tamaulipeca (T. bora sp. n. from Ecuador and Peru, T. candoshi sp. n. from Ecuador and T. matses sp. n. from Peru) are described and illustrated from Western Amazonia. Identification keys to the known South American species of the genera are provided. This paper was supported by Project A/013484/07 of the Agencia Española de Cooperación Internacional para el Desarrollo (Ministerio de Asuntos Exteriores y de Cooperación, Spain), grant BEST/2010/036 from the Conselleria d’Educacio (Generalitat Valenciana, Spain) and by the Kone Foundation, Finland (Biodiversity and multitrophic interactions project).

Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) are described from the Guiana Shield and Amazonian Brazil: Matelea brevistipitata Krings & Morillo, sp. nov. and M. trichopedicellata Krings & Morillo, sp. nov. The new species belong to a small group of adaxially-pubescent-flowered taxa within the complex, including M. hildegardiana and M. pakaraimensis. The new species are described and a dichotomous key is provided.

The tribe Bactrophorini of the Bactrophorinae is briefly reviewed. Two new genera are erected: Mayalina, and Hylaezentia. Three new species (M. cohni, M. teapensis and M. chajulensis) of Mayalina are described. A key to the genera of the tribe is included. A cladistic analysis of morphological characters indicates that the Bactrophorini genera fall into two well-supported clades. The first, (“Hyleacrae”, after its most basal member) has as its basal branches, the exclusively Amazonian Hyleacris and the Amazonian and Central American Bactrophora; as its crown group it contains all the remaining Central American genera except Mezentia. The Central American genera of the Hyleacrae fall into two lineages: first, the sister genera Cristobalina and Mayalina (the “Cristobalina genus group”) of Mexico, Guatemala, and Honduras, and secondly the “Rhicnoderma genus group”, composed of four genera (Rhicnoderma Gerstaecker, 1889, Lempira (Rehn, 1938) and Pararhicnoderma Rowell, 2012, which occur from Southern...

A second species of Amblyodus Westwood, 1878, Amblyodus castroi sp. n., is described from the northern South America based on 12 specimens from Brazil and Peru (Amazonian subregion). The new species is here compared with the type species of the genus, Amblyodus taurus Westwood, 1878 and both species and their male genitalia are illustrated. Diagnostic characters for the genus are discussed, especially the metatibial teeth. A distribution map including the type species and the new species is provided. The genus Amblyodus is recorded for the first time from Peru and from Brazil states of Pará and Rondônia.

We provide the first confirmed report of Osteocephalus cabrerai (Cochran and Goin 1970) from Amazonian Ecuador. Two previous reports actually correspond to O. buckleyi.

(Cope, 1862) (Figures 1; 2), is one of the most widespread South American skinks, being primarily distributed south of the Amazonian region in Brazil and Bolivia, southwards to Argentina and Paraguay (Cei 1993). This species is typically associated to the Cerrado and Chaco biomes (Vanzolini 1988; Colli et al. 2002), but also occurs, to some extent, within the Atlantic Forest domain (Sazima and Haddad 1992; Vrcibradic et al. 2006). It is widely distributed within the Brazilian territory, having been recorded in Rio Grande do Sul, Parana, Sao Paulo, Rio de Janeiro, Mato Grosso do Sul, Goias, the Federal District, Mato Grosso, Rondonia, Tocantins, Piaui, and Para (Vrcibradic et al. 2006 and included references). However, there are currently no published records of

The mygalomorph neotropical genus Fufius Simon, 1888 comprises ten species, distributed from Guatemala in Central America to southeastern Brazil, in South America. Most of the species were described from northern South America, in the Amazonian region. Only F. funebris Vellard, 1924 and F. lucasae Guadanucci & Indicatti, 2004 are known from regions more to the south of the continent. Herein we describe three new Brazilian species, Fufius minusculus sp. n. and F. jalapensis sp. n. from the state of Tocantins, and F. candango sp. n. from Distrito Federal. The female of F. lucasae is described for first time and the male and female of F. funebris are redescribed based on specimens collected at the type locality.

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:29:32Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:43:09Z : No. of bitstreams: 1 2-s2.0-84877944854.pdf: 594650 bytes, checksum: 9de013288b986914018d83a91875c04a (MD5) Made available in DSpace on 2014-05-27T11:29:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-05-27 The Amazonian brown brocket Mazama nemorivaga (Cuvier, 1817) is a small to medium-sized deer from the Amazon rainforest and ecotones. The first karyotype described was 2n=67 to 69 + 2-7 B and FN= 69-72, in which all chromosomes were acrocentric and the X chromosome was the only submetacentric chromosome. However, important aspects of the species chromosome evolution were not resolved because of the lack of information on chromosome banding. The G-banding pattern of M. nemorivaga karyotype showedthe presence of an XX/XY1Y2 sex chromosome system as a product of an X-autosome tandem fusion, which results in a basic 2n=68, FN=70 in females and 2n= 69, FN=70 in males. The fact that this karyotype only differs from that of Capreolus capreolus pygargus (Pallas, 1771; 2n=70, FN=72+B) by X-autosome tandem fusion may corroborate the basal condition of M. nemorivaga and its proximity to the ancestral karyotype of the American Odocoileini. A derived karyotype 2n=67, XY1Y2, FN=70 + 3B from the Brazilianstate of Mato Grosso (the western Amazon) may be evidence of differentiation between western and eastern populations. © Bruno Ferreto Fiorillo et al. Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE) Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias, UNESP, Campus de Jaboticabal, 14884-900, Jaboticabal, SP Programa de Pós-Graduação em Genética e Melhoramento Animal Faculdade de Ciências Agrárias e Veterinárias UNESP, Campus de Jaboticabal, 14884-900, Jaboticabal, SP Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE) Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias, UNESP, Campus de Jaboticabal, 14884-900, Jaboticabal, SP Programa de Pós-Graduação em Genética e Melhoramento Animal Faculdade de Ciências Agrárias e Veterinárias UNESP, Campus de Jaboticabal, 14884-900, Jaboticabal, SP

The present note reports the first record of Vampyrodes caraccioli in the Brazilian state of Amazonas, and the central Amazon region, based on 44 specimens caught in the Auati-Paraná Extractive Reserve, north bank of the Solimões/Amazonas River. Our record fills a distribution gap of this species in the Brazilian Amazon and illustrates that the current knowledge on the distribution of Amazonian bats is far from complete.

Paraportanus longispinus,, a new leafhopper species from Roraima and Amazonas States, North Brazil, is described and illustrated. The new species can be recognized by the male genital features, especially the distal third of ventral margin of the pygofer with a dentiform short process; plates distinctly longer than pygofer, extending posteriorly beyond pygofer by approximately 1/3 of their length and aedeagus with one pair of spiniform process long crossed and directed ventrally. A checklist and key to males of all known Paraportanus species is provided.

Badister (Badister) amazonus sp. n. is described from Perú, Loreto, 1.0 km SW Boca del Rio Samiria, Vigilante Post 1, 130m, “04°40.5`S, 074°18.9`W" its type locality. It is known also from two other localities in Loreto Department, Perú, in both the Varzea and Igapó river systems. This new species is sufficiently different that a new informal higher taxon, the amazonus species complex, is recognized. An updated key to the Western Hemisphere species of subgenus Badister is provided.

We report two high altitude sightings of Boat-billed Heron in the Andes of Ecuador. Based on identification and the localities were the sightings were reported, we suggest that both individuals belong to the Amazonian population of this species.

The Amazonian floodplains harbor highly diverse wetland forests, with angiosperms adapted to survive extreme floods and droughts. About 14% of the Amazon Basin is covered by floodplains, which are fundamental to river productivity, biogeochemical cycling and trophic flow, and have been subject to human occupation since Pre-Colombian times. The botanical knowledge about these forests is still incomplete, and current forest degradation rates are much higher than the rate of new botanical surveys. Herein we report the results of three years of botanical surveys in floodplain forests of the Central Amazon. This checklist contains 432 tree species comprising 193 genera and 57 families. The most represented families are Fabaceae, Myrtaceae, Lauraceae, Sapotaceae, Annonaceae, and Moraceae representing 53% of the identified species. This checklist also documents the occurrence of approximately 236 species that have been rarely recorded as occurring in white-water floodplain forests.

The Scorpion mud turtle (Kinosternon scorpioides) is the chelonian species with the largest distribution range in the Neotropics. The species is reportedly distributed as two disjunct populations in South America: the Amazonian and the Chacoan populations. We present new records of K. s. scorpioides which represent an expansion of the species distribution, with the first records for the Upper Paraguay River basin, the first records for the Mato Grosso do Sul state, Brazil, as well as an evidence that the two previously documented populations area not disjunct.

Amazophrynella minuta is a small toad widely distributed in the lowlands and midlands of the Amazon and Guiana regions. Herein we report the first record of this species from Venezuela based on a single specimen from Raudal de Danto, Río Cuao, northwestern Amazonas state. This record extends the distribution of the species more than 500 km from the closest known localities in Colombia and Brazil

Three specimens of Amapasaurus tetradactylus Cunha, 1970 were collected during a field survey in the core area of the Amazonian National Park of French Guiana (‘Parc Amazonien de Guyane’), in southern French Guiana. This is the first record of the species for this country, extending its distribution 140 km northwards.

The Amazonian toadheaded pitviper Bothrocophias hyoprora (Amaral, 1935) is known from Brazil (states of Amazonas and Rondônia), Colombia, eastern Equador, Peru, and Bolivia. We report the first record of this species from the state of Acre (Brazil) in the Serra do Divisor National Park. This record extends the species distribution in 540 km to the southwest of Tabatinga, state of Amazonas, which was the nearest record of this species in Brazilian Amazon.

The Amazonian species Manilkara cavalcantei is reported for the first time for northeastern Brazil in an area of "restinga" vegetation. This is the fourth species of Manilkara recorded for the state of Piauí, and the new record highlights the importance of protection of forest fragments.

The remote Nangaritza Valley of southeast Ecuador has high bird diversity, combining Amazonian birds with species typical of eastern Andean slopes and foothills, a small number of taxa endemic to the Cordillera del Cóndor region of southern Ecuador and northern Peru, as well as a few forms from the dry Marañón valley region. Here, we update and review avifaunal records from the Nangaritza Valley, comparing them with the bird fauna of the Cordillera del Kutukú and making a brief assessment of bird conservation in the area. To date, 535 species are known to occur in the Nangaritza Valley, including eight species endemic or near endemic to the outer ridges and adjacent Andean slopes in southeast Ecuador and northeast Peru. Conservation perspectives in the area are not favorable owing to increasing deforestation, expansion of the agricultural frontier and mining concessions, which threaten eight regional endemic species.

This study presents a list of anurans and lizards of a Central Amazonian terra-firme rainforest site at Rio Preto da Eva, Amazonas, Brazil sampled for 38 days from December 2003 to February 2004. The study area is located close to highway AM-010 (Manaus-Itacoatiara), where deforestation represents the main threat to the local biota. Using two complementary sampling methods, active search and pitfall traps with drift fence, we recorded 23 anuran species in 12 genera and six families and 20 lizard species in 16 genera and seven families. Relative to other sites in Central Amazon, our study site presented a similar number of species of lizards but fewer amphibians.

The construction of hydroelectric power stations can affect the fauna, including the adaptation to the new lentic conditions, and may lead to the disappearance of some species and the colonization of others. Usually, there is a lack of information in the post-flooding phases. The present study is a preliminary qualitative survey of mammals, birds, and reptiles in the influenced area of the Balbina hydroelectric dam (01°55' S, 59°29' W). Species records were made during field trips to the reservoir with no group specific methods. The conservation status of the identified species followed the classification adopted by IUCN. Twenty-two mammals (one endangered – EN), forty-two birds and six reptiles (one vulnerable – VU) were identified. Although the list presented here is preliminary, if appropriately complemented, it can be used to understand the effects of hydroelectric dams on the Amazonian fauna.