Paúl M. Velazco

Paúl M. Velazco
Arcadia University · Department of Biology

Doctor of Philosophy

About

106
Publications
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3,490
Citations

Publications

Publications (106)
Article
Full-text available
We report the northernmost collecting locality for the nectar-feeding bat Hsunycteris cadenai in the Colombian Biogeographic Chocó. This record extends the range of the species to 224 km north of the species type locality in Zabaletas river, department of Valle del Cauca, and 75 km west of Santa Cecilia, Risaralda. The specimen was collected on May...
Article
The Cretaceous–Paleogene (KPg) boundary, one of Earth’s five major extinction events, occurred just before the appearance of Placentalia in the fossil record. The Gobi Desert, Mongolia and the Western Interior of North America have important fossil mammals occurring just before and after the KPg boundary (e.g. Prodiacodon, Deltatheridium) that have...
Article
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Marsupials represent a major mammalian diversification today restricted geographically to the Americas (but chiefly to the Neotropical Region) and Australasia. The group is highly diverse in morphology, ecology, and habits, and this is reflected to a great extent in cranial morphology. Here, we selected the largest specimens available from a post-w...
Article
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The Pacific coastal desert of Peru harbors a unique bat fauna, including narrowly endemic taxa adapted to arid environments. This region was also the setting where several pre-Incan civilizations flourished. The Moche culture (100-850 CE) was one of those, with a rich and diverse material culture that included strikingly realistic ceramic represent...
Article
Zootaxa came as a new and innovative publication medium for taxonomy, amidst a scenario of devaluation of this important biological science. After 20 years, it has ascertained itself as one of the main journals in animal taxonomy. However, the contribution of the journal to the taxonomy of Mammalia (mammals), one of the most studied groups of anima...
Article
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Indigenous Peoples have shaped and managed vast tracts of the Amazon rainforest for millennia. However, evaluations of how much biodiversity is governed under Indigenous stewardship are scarce. Here, we integrate geospatial data of officially recognized ITs across the Amazon biogeographic boundaries with the distribution range of >200 Amazonian bat...
Article
Platalina genovensium Thomas, 1928 is a bat commonly called Peruvian long-tongued bat. P. genovensium is characterized by having a greatly elongated muzzle, rostrum clearly longer than the braincase, and premaxillary bones projecting beyond the canines. The dorsal pelage is long and bicolored; the venter is lighter than the dorsum. P. genovensium i...
Article
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Echolocation is a type of biological sonar in which sound waves are emitted into the environment and reflected off objects to help organisms “see” the surrounding area. Echolocation is usually associated with bats and dolphins; however, some blind humans are able to adapt this technique to gain independence and freedom of movement in their environm...
Article
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The Neotropical bat genus Platyrrhinus is one of the most speciose genera in the family Phyllostomidae. It includes 20 species of frugivorous bats that are endemic to the Neotropics. Platyrrhinus chocoensis is a species distributed from southern Panama southward into northern Ecuador on the lowlands and mid elevations of the Pacific coast of northe...
Article
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The Stripe-headed Round-eared bat, Tonatia saurophila, includes three subspecies: Tonatia saurophila saurophila (known only from subfossil records in Jamaica), Tonatia saurophila bakeri (distributed from southeastern Mexico to northern Colombia, Venezuela west and north of the Cordillera de Mérida, and northwestern Ecuador), and Tonatia saurophila...
Article
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Emballonurid bats of the genus Centronycteris are rare and poorly represented in scientific collections and in the literature. We report the second record of Thomas’s Shaggy bat Centronycteris centralis Thomas, 1912 for the Choco biogeographic region of Colombia and first one for the department of Chocó. This new record fills a large distributional...
Article
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The Systematic Collections Committee of the American Society of Mammalogists advises curators and other personnel affiliated with natural history collections in matters relating to administration, curation, and accreditation of mammal specimens and their associated data. The Systematic Collections Committee also maintains a list of curatorial stand...
Article
Tomopeas ravus Miller, 1900 is a bat commonly called Peruvian crevice-dwelling bat. It is the only representative of the subfamily Tomopeatinae and endemic to the coastal desert of Peru where it is associated with woody savanna ecosystems and narrow rock crevices. Globally, it is considered “Endangered” by the International Union for Conservation o...
Article
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Handleyomys intectus (Thomas, 1921) is a rodent commonly called the Colombian rice rat or white-footed Handley's mouse. It is a dull brownish-gray to blackish small mouse with frosted ventral pelage and with dark gray and pure-white (or indistinctly pigmented) hairs over the dorsum of hindfeet. H. intectus is endemic to the Central Andes of Colombi...
Article
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We present the results of an inventory of small mammals in the Mayo River basin, one of the least-studied regions of the Central Andes in Peru. We conducted inventories at three locations in May 2007. We collected 47 species of small mammals in the study area: five marsupials, 31 bats, and 11 rodents. A new species of Sturnira was encountered and i...
Article
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The Neotropical fruit bats of the genus Artibeus are distributed from southern México to northern Argentina occupying a wide array of different habitats. Of the 14 species present in Colombia, 85.7 % (n = 12) occur in the department of Choco. Bat inventories were carried out by the Consejo Comunitario Mayor de Istmina and Medio San Juan (COCOMINSA)...
Article
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As a periodic assessment of the mammal collection resource, the Systematic Collections Committee (SCC) of the American Society of Mammalogists undertakes decadal surveys of the collections held in the Western Hemisphere. The SCC surveyed 429 collections and compiled a directory of 395 active collections containing 5,275,155 catalogued specimens. Ov...
Article
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Platyrrhinus is a genus of leaf-nosed frugivorous bats that are endemic to the Neotropics. P. umbratus occurs in the Andean and costal mountain systems of Venezuela and Colombia. P. nigellus occurs along the Andes from Venezuela to Bolivia. Both species are medium-sized members of the genus possessing confusing taxonomic histories that have never i...
Article
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El laberinto óseo dentro del hueso temporal protege el oído interno, órgano sensorial para la audición y balance. La variación en los tres componentes del laberinto óseo (cóclea, vestíbulo y canales semicirculares) ofrece un alcance sobre la fi siología y evolución de los diferentes grupos de mamíferos. Usando la tomografía micro-computarizada de a...
Article
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The bony labyrinth inside the temporal bone houses the inner ear, sensory organ of hearing and balance. Variations in the three components of the bony labyrinth (cochlea, vestibule, and semicircular canals) give insight into the physiology and evolution of the different groups of mammals. Based on high resolution micro-Computed Tomography (μCT), we...
Article
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Lonchorhina marinkellei Hernández-Camacho and Cadena-G., 1978 is a bat commonly called Marinkelle’s sword-nosed bat. It is one of the largest species of the genus and one of the rarest bats of northern South America, only known from 5 specimens and 1 locality in the eastern llanos of Colombia. Globally, it is considered “Vulnerable” by the Internat...
Article
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Santamartamys rufodorsalis (Allen, 1899) is a rodent commonly called the red-crested tree rat. It is a medium-sized arboreal rat with soft, long pelage, and a crest of long hair on the crown between the ears. The dorsum is a deep rufous, and the sides, including the head and nose, are a paler yellowish orange. It is endemic to the Sierra Nevada de...
Poster
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J.L. Dunnum*, R.C. Dowler, and ASM Systematic Collections Committee (2017): ASM Systematic Collections Committee 2017 resurvey of the mammal collections of the western hemisphere. Poster presented at the 97th Annual Meeting of the American Society of Mammalogists, University of Idaho, Moscow, Idaho, EEUU.
Article
A new species of the nectarivorous bat genus Hsunycteris is described from lowland Amazonian forest in northeastern Peru. The new species, H. dashe, can be distinguished from other congeners by its larger size; V-shaped array of dermal chin papillae separated by a wide basal cleft; metacarpal V longer than metacarpal IV; broad rostrum; lateral marg...
Article
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The Neotropical genus Platyrrhinus includes 21 small- to medium-sized bat species. Until recently, the known distribution of Platyrrhinus fusciventris in Brazil was restricted to the Amazon and Cerrado biomes. Herein, we report the easternmost record of this species, extend- ing its distribution to the Caatinga biome, in Northeastern Brazil, S...
Article
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Scientists building the Tree of Life face an overwhelming challenge to categorize phenotypes (e.g., anatomy, physiology) from millions of living and fossil species. This biodiversity challenge far outstrips the capacities of trained scientific experts. Here we explore whether crowdsourcing can be used to collect matrix data on a large scale with th...
Article
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Olallamys albicaudus (Günther, 1879) is a rodent called the white-tailed Olalla rat. It is a medium-sized rat with soft, long pelage and a tail with a whitish tip. The dorsum is bright reddish-brown, and the venter is whitish. It is endemic to the Andes region of Colombia and despite its wide distribution in the country, O. albicaudus is known from...
Article
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Two new genera and species of Tritylodontidae, Shartegodon altai and Nuurtherium baruunensis, are described and compared with other known tritylodontids. The new taxa are represented by two partial skulls and, in the case of Nuurtherium, postcranial elements. They were collected from the lower part of the Ulan Malgait Sequence (Upper Jurassic) in t...
Article
The ecological mechanisms that sustain high species richness in Neotropical bat communities have attracted research attention for several decades. Although many ecologists have studied the feeding behavior and diets of Neotropical bats on the assumption that food is a limiting resource, other resource axes that might be important for species coexis...
Article
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The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009;...
Data
This plot is not part of the published stance but derives from it. The plot shows the number of authors by geographic region (courtesy of Dr. Diego Astua).
Article
Palaeictops is a genus of Early Cenozoic Leptictidae, currently comprising six species known from Eocene faunas in the United States and Canada. Two new species, Palaeictops altimontis and P. robustus, are represented by nearly complete skulls and mandibles from the Tepee Trail (Middle Eocene) and Uinta (Middle Eocene) formations of Wyoming and Uta...
Article
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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 cur...
Article
To explore whether environmental factors are correlated with genetic and morphometric differences in the widely distributed bat species Tadarida brasiliensis. North America and Central America. We used an extensive sampling comprising 131 localities that represent heterogeneous environments across the Nearctic and Neotropical regions. Museum specim...
Article
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The silvery fruit-eating bat (Artibeus glaucus Thomas, 1893) is a small sized phyllostomid bat with indistinct facial stripes and obscure pale edging on the ears, dark brown pelage with less contrast on the shoulders and venter, and dorsal fur that extends beyond the posterior margin of the uropatagium. It has a narrow distribution associated with...
Article
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The earliest record of plant visiting in bats dates to the Middle Miocene of La Venta, the worldtextquoterights most diverse tropical palaeocommunity. Palynephyllum antimaster is known from molars that indicate nectarivory. Skull length, an important indicator of key traits such as body size, bite force and trophic specialization, remains unknown....
Article
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Platalina genovensium Thomas, 1928, the largest Lonchophyllinae, is a highly specialized phyllostomid bat that feeds primarily on columnar cacti and is listed as Near Threatened by the IUCN. Here we report a new record of an ectoparasite insect for Platalina, Speiseria ambigua Kessel, 1925 (Diptera: Streblidae), obtained from a bat inventory carrie...
Article
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Systematics of Vampyressa melissa Thomas, 1926 (Chiroptera: Phyllostomidae), with descriptions of two new species of Vampyressa ABSTRACT Vampyressa melissa is a poorly known phyllostomid bat listed as vulnerable by the Inter-national Union for Conservation of Nature (IUCN). Since its description in 1926, fewer than 40 V. melissa have been reported...
Conference Paper
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La historia-evolutiva de la familia Mormoopidae, en particular del género Mormoops, es considerada de interés especial para el estudio de los patrones biogeográficos del Cenozoico tardío (Cuaternario) sudamericano. Este género es hoy foco de investigación de un proyecto multidisciplinar, que reúne una variedad de colaboraciones internacionales. Mor...
Article
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A new species of broad-nosed bat Platyrrhinus Saussure, 1860 (Chiroptera: Phyllostomidae: Stenodermatinae) from the Guianan Shield is described based on molecular and morphological data. Previously confused with P. helleri and P. recifinus, the new taxon is currently known from only Guyana and Suriname and is most closely related to P. recifinus fr...
Article
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Morphological characters are indispensable in phylogenetic analyses for understanding the pattern, process, and tempo of evolution. If characters are independent and free of systematic errors, then combining as many different kinds of characters as are available will result in the best-supported phylogenetic hypotheses. But since morphological char...
Article
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The present study reports the southernmost record of Tomopeas ravus and the first capture of this species after more than 30 years since the last known report. This record extends the distribution of the species approximately 230 km south of the current known distributional range.
Article
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Pigmentation disorders, either from the complete absence (albinism), partial (leucism), or excess (melanism) of melanin, are rare in vertebrates. Worldwide, only a few records of these disorders had been reported for bats. Thanks to recent fieldwork and examination of museum specimens of the collections of the AMNH and MUSM, we report five species...
Article
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Two new species of yellow-shouldered bats Sturnira Gray, 1842 (Chiroptera, Phyllostomidae) from Central America and western South America are described using molecular and morphological data. The two new species, which occur in Costa Rica and Panama and in western Ecuador, were previously confused with S. ludovici, and S. lilium and S. luisi, respe...
Article
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The partially submerged Impossível-Ioiô cave system located in the karst region of Chapada Diamantina in Bahia (Brazil) has recently been the target of extensive paleontological studies. Here we provide the first report of fossil bats from this cave system, in which we recognize six species based on humeral remains: Furipterus horrens, Chrotopterus...
Article
Full-text available
Two new species of yellow-shouldered bats Sturnira Gray, 1842 (Chiroptera, Phyllostomidae) from Central America and western South America are described using molecular and morphological data. The two new species, which occur in Costa Rica and Panama and in western Ecuador, were previously confused with S. ludovici, and S. lilium and S. luisi, respe...
Article
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Species of Thyroptera are insectivorous foliage-roosting bats that inhabit lowland moist forests (including gallery formations in savanna landscapes) from Mexico to southeastern Brazil. Although four species are currently recognized, only one or two species were previously known to occur at most localities. Recent inventory work in northeastern Per...
Article
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The monotypic bat genera Platalina and Tomopeas are rare and known from few localities throughout their distributions. These species have not been recorded in the northern half of their distributions for the last 4 and 3 decades, respectively, suggesting local extirpation. Here we present new records for both taxa from a 2012 expedition conducted i...
Conference Paper
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Biologists collect and analyze phenomic (e.g., anatomical or non-genomic) data to discover relationships among species in the Tree of Life. The domain is seeking to modernize this very time-consuming and largely manual process. We have developed an approach to detect and localize object parts in standardized images of bat skulls. This approach has...
Article
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The Neotropical bat genus Carollia (Phyllostomidae: Carolliinae) currently includes eight species. Carollia manu was described in 2004 and is distributed in montane forests in southern Peru and Bolivia. The phylogenetic affinities of C. manu have never been assessed before. Phylogenetic analyses of cytochrome b sequences of seven of the eight known...
Article
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Abstract Laelapine mites are common parasites of sigmodontine rodents in the Neotropics. However, few species are reported from Peru as a result of the low number of mammal surveys that include ectoparasites collection. Herein, we report 12 species of mites from northern Peru. From those, 8 are reported for the first time for the country, and 1 is...
Article
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The tropical Andes and Amazon are among the richest regions of endemism for mammals, and each has given rise to extensive in situ radiations. Various animal lineages have radiated ex situ after colonizing one of these regions from the other: Amazonian clades of dendrobatid frogs and passerine birds may have Andean ancestry, and transitions from the...