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Cytotaxonomy of the subgenus Artibeus (Phyllostomidae, Chiroptera) by characterization of species-specific markers  [cached]
Marcela de Lemos Pinto,Merilane da Silva Calixto,Maria José de Souza,Ana Paloma Tavares de Araújo
Comparative Cytogenetics , 2012, DOI: 10.3897/compcytogen.v6i1.1510
Abstract: The genus Artibeus represents a highly diverse group of bats from the Neotropical region, with four large species occurring in Brazil. In this paper, a comparative cytogenetic study was carried out on the species Artibeus obscurus Schinz, 1821, A. fimbriatus Gray, 1838, A. lituratus Olfers, 1818 and A. planirostris Spix, 1823 that live sympatrically in the northeast of Brazil, through C-banding, silver staining and DNA-specific fluorochromes (CMA3 and DAPI). All the species had karyotypes with 2n=30,XX and 2n=31,XY1Y2, and FN=56. C-banding showed constitutive heterochromatin (CH) blocks in the pericentromeric regions of all the chromosomes and small CH blocks at the terminal region of pairs 5, 6, and 7 for all species. Notably, our C-banding data revealed species-specific autosomic CH blocks for each taxon, as well as different heterochromatic constitution of Y2 chromosomes of A. planirostris. Ag-NORs were observed in the short arms of chromosomes 5, 6 and 7 in all species. The sequential staining AgNO3/CMA3/DA/DAPI indicated a positive association of CH with Ag-NORs and positive CMA3 signals, thus reflecting GC-richness in these regions in A. obscurus and A. fimbriatus. In this work it was possible to identify interespecific divergences in the Brazilian large Artibeus species using C-banding it was possible provided a suitable tool in the cytotaxonomic differentiation of this genus.
Distribui??o geográfica e análise morfológica de Artibeus lituratus Olfers e de Artibeus fimbriatus Gray (Chiroptera, Phyllostomidae) no Rio Grande do Sul, Brasil
Rui, Ana Maria;Fabián, Marta Elena;Menegheti, Jo?o Oldair;
Revista Brasileira de Zoologia , 1999, DOI: 10.1590/S0101-81751999000200011
Abstract: a study has been made on the geographical distribution and comparative external and cranial morphological analysis of artibeus lituratus olfers, 1818 and artibeus fimbriatus gray, 1838 (chiroptera, phyllostomidae) in the state of rio grande do sul, brazil. a. lituratus and a. fimbriatus were found to be sympatric in the state north to the "planície costeira", in the "depress?o central", in the hillsides of "serra geral", and in the northern region of the state, areas previously covered by forests. the southernmost point for artibeus leach, 1821 distribution is 30o south, and a. lituratus and a. fimbriatus are the two species found more to the south. the two species studied do not show sexual dimorphism as to external characteristics. cranial measurements revealed significant differences between males and females of a. lituratus in mandible length, which was significantly larger in females(p<5%), and between males and females of a. fimbriatus, in the length of the set of lower teeth and in the external width between the cingula of canine teeth, which were significantly larger in males (p<5%). no further morphological cranial differences were found between genders of both species. a. lituratus and a. fimbriatus can be externally distinguished by size, for a. lituratus is larger than a. fimbriatus as concerns all external dimensions analysed except for the tibia length (p<5%). the two species can also be differentiated by pelage colour, hair length, and facial stripes appearance. in the skull, a number of differences were found in rostrum format, in the developmental degree of supraorbital and post-orbital crests and pre-orbital and post-orbital processes, and in several cranial dimensions analysed.
Preda??o oportunista de Artibeus planirostris (Spix, 1823) e Carollia perspicillata (Linnaeus, 1758) (Chiroptera, Phyllostomidae) por marsupiais e anuro na APA do Rio Curiaú, Amapá, Brasil
Castro, Isai Jorge de;Silva, Claudia Regina;Costa, Arley José Silveira Da;Martins, Ana Carolina Moreira;
Acta Amazonica , 2011, DOI: 10.1590/S0044-59672011000100020
Abstract: we observed three occasional predations of bats captured in mist nets by marsupials and a frog during studies in a várzea forest in the amapá state. artibeus planirostris (spix, 1823) (chiroptera, phyllostomidae) was preyed upon by didelphis marsupialis linnaeus, 1758 and philander opossum (linnaeus, 1758) (didelphimorphia, didelphidae). carollia perspicillata (linnaeus, 1758) (chiroptera, phyllostomidae) was preyed on by leptodactylus pentadactylus (laurenti, 1768) (anura, leptodactylidae). the bats vocalizations probably attracted the marsupials and a frog to the mist nets where they preyed. this interaction form can occur naturally, however, are more difficult to observed.
Suitability of DNA extracted from archival specimens of fruit-eating bats of the genus Artibeus (Chiroptera, Phyllostomidae) for polymerase chain reaction and sequencing analysis
Scatena, Mário Pinzan;Morielle-Versute, Eliana;
Genetics and Molecular Biology , 2008, DOI: 10.1590/S1415-47572008000100027
Abstract: to establish a technique which minimized the effects of fixation on the extraction of dna from formalin-fixed tissues preserved in scientific collections we extracted dna samples from fixed tissues using different methods and evaluated the effect of the different procedures on pcr and sequencing analysis. we investigated muscle and liver tissues from museum specimens of five species of fruit-eating (frugivorous) bats of the neotropical genus artibeus (chiroptera, phyllostomidae): a. fimbriatus, a. lituratus, a. jamaicensis, a. obscurus, and a. planirostris. the results indicated that treatment of tissues in buffered solutions at neutral ph and about 37 °c for at least four days improves the quality and quantity of extracted dna and the quality of the amplification and sequencing products. however, the comparison between the performance of dna obtained from fixed and fresh tissues showed that, in spite of the fact that both types of tissue generate reliable sequences for use in phylogenetic analyses, dna samples from fixed tissues presented a larger rate of errors in the different stages of the study. these results suggest that dna extracted from formalin-fixed tissue can be used in molecular studies of neotropical artibeus bats and that our methodology may be applicable to other animal groups.
Una especie nueva de Cheiropteronema (Nematoda, Molineidae) en Artibeus planirostris (Chiroptera, Phyllostomidae) en la Argentina
Oviedo, Mirna C;Ramallo, Geraldine;Claps, Lucía E;
Iheringia. Série Zoologia , 2010, DOI: 10.1590/S0073-47212010000300009
Abstract: cheiropteronema striatum sp. nov. is a parasite of the bat artibeus planirostris (spix, 1823). this species is characterized by cephalic vesicle striate, thick egg shell punctate, spicules equal, symmetrical development of spicule wings, particular arrangement and number the ridges of synlophe, and lack of esophageal tooth. cheiropteronema striatum sp. nov. is the second species described for the genus and the first recorded in frugivorous bats of argentina.
A note on the diet and foraging behavior of Artibeus lituratus (Chiroptera, Phyllostomidae) in an urban park in southeastern Brazil
Oprea, Monik;Brito, Daniel;Vieira, Thiago Bernardi;Mendes, Poliana;Lopes, Sílvia Ramira;Fonseca, Ricardo Milanez;Coutinho, Rafael Zerbini;Ditchfield, Albert David;
Biota Neotropica , 2007, DOI: 10.1590/S1676-06032007000200033
Abstract: bats of the genus artibeus are among the most important seed dispersers in early successional forests. we report observations on the foraging behavior of artibeus lituratus in pedra da cebola municipal park, an urban park in the city of vitória, espírito santo, southeastern brazil. observations were made during six consecutive days (april 1st to april 6th, 2006). three mist-nets were opened each night close to a maclura tinctoria tree (moraceae), remaining open from 18:00 to 22:00, totaling four hours per night, and 24 hours of sampling effort. we observed two peaks of feeding activity at the tree, one between 18:20 and 19:30, and a second one at 21:00. this is the first observation of artibeus lituratus feeding on m. tinctoria fruits, therefore adding a new item to the known diet of the species. m. tinctoria fruits have large seeds that are not swallowed by bats, they consume the fruit pulp and discard the seeds. a diet of fruits with large seeds may indicate an important resource not detected in dietary studies based on fecal samples, but better detected by direct observation or by studying feeding roosts. it is important to use different sampling techniques in dietary studies since they complement each other and, together, provide a better knowledge on the diet of bats.
Energy reserves of Artibeus lituratus (Chiroptera: Phyllostomidae) in two areas with different degrees of conservation in Minas Gerais, Brazil
Melo, BES;Barros, MS;Carvalho, TF;Amaral, TS;Freitas, MB;
Brazilian Journal of Biology , 2012, DOI: 10.1590/S1519-69842012000100022
Abstract: forest fragmentation associated with the expansion of human development is a phenomenon that occurs worldwide. studies reveal that there have been both a decline in species diversity and a decrease in neotropical bat population size because of habitat loss. the aim of this study was to investigate whether human action has been affecting the food availability to wildlife species, which could impact the storage of body energy reserves. for this purpose, fruit-eating bats (artibeus lituratus) were collected in two areas in minas gerais state, brazil. the concentrations of plasma glucose, as well as glycogen, lipids and protein in liver in muscles were performed, in addition to adipose tissue weight and carcass fatty acids. our results indicate that fat reserves were significantly lower in most tested tissues (muscle of the hindlimbs, breast muscles, adipose tissue and carcass) in animals collected in the region with a higher degree of human disturbance. the other parameters showed no significant differences in the groups collected at different locations. in conclusion, we suggest that human action on the environment may be affecting the storage of body fat energy reserves of this species during the autumn, particularly in metropolitan region areas of belo horizonte, mg - brazil, requiring special attention to the species conservation.
Relating Diet and Capture Time Between two Species of Frugivorous Bats (Chiroptera, Phyllostomidae, Stenodermatinae) Relacionando dieta e horários de captura entre duas espécies de morcegos frugívoros (Chiroptera, Phyllostomidae, Stenodermatinae)  [cached]
Eduardo Ribeiro Sartore,Nelio Roberto dos Reis
Semina : Ciências Biológicas e da Saúde , 2012,
Abstract: Artibeus lituratus (Olfers, 1818) and Platyrrhinus lineatus (Geoffroy, 1810) are phyllostomid bats that often coexist in the same local and consume the same feed. Therefore, the aim of this study was to obtain data about feeding habits of the two species, relating to their capture times, in the land where is the Universidade Estadual de Londrina, northern Paraná. The samples were attained among September 2010 and May 2011, with 12 960 m2 h of sampling effort. The results analysis contemplated the Shannon Index, Pielou Index and Schoener Index. 250 A. lituratus e 46 P. lineatus were captured, and while the first one consumed fruits from ten vegetable species, the second fed just three species, both preferring the Cecropia spp. and Ficus spp. genus. A. lituratus showed the higher capture peak 30 minutes after the sunset and was collected throughout the period. P. lineatus had its higher peak 01h 45min after nightfall and was captured in short periods. With these outcomes, is possible to imply that P. lineatus has a foraging peak, in the study place, 75 minutes after A. lituratus, avoiding straight competition. A. lituratus showed larger food diversity, indicating higher adaptative potential for this specie than for the other. Artibeus lituratus (Olfers, 1818) e Platyrrhinus lineatus (Geoffroy, 1810) s o morcegos filostomídeos que frequentemente coexistem num mesmo local e consomem o mesmo alimento. Assim, o objetivo deste estudo foi obter dados sobre os hábitos alimentares das duas espécies, relacionando-os com seus horários de captura, na regi o onde se encontra o campus da Universidade Estadual de Londrina no norte do Paraná. As coletas foram realizadas entre Setembro de 2010 e Maio de 2011, com um esfor o amostral de 12 960 m2 h. A análise dos resultados contemplou o uso do índice de Shannon, índice de Pielou e índice de Schoener. Capturaram-se 250 A. lituratus e 46 P. lineatus, e o primeiro consumiu frutos de dez espécies vegetais, enquanto o segundo utilizou apenas três espécies, ambos dando preferência aos gêneros Cecropia spp. e Ficus spp. A. lituratus apresentou o maior pico de captura 30 minutos após o p r-do-sol e foi coletado durante todo o período. P. lineatus teve seu maior pico 01h 45min após o anoitecer e foi capturado em pequenos períodos. Com esses resultados, sugere-se que P. lineatus tem seu pico de forrageamento, no local de estudo, 75 minutos após A. lituratus, evitando competi o direta. A. lituratus apresentou maior diversidade de alimentos, indicando maior potencial adaptativo para esta espécie em rela o à outra.
Anomalias e varia??es na fórmula dentária em morcegos do gênero Artibeus Leach (Chiroptera, Phyllostomidae)
Rui, Ana Maria;Drehmer, César Jaeger;
Revista Brasileira de Zoologia , 2004, DOI: 10.1590/S0101-81752004000300026
Abstract: this paper describes and analyzes the causes of dental formula anomalies in the bats artibeus lituratus (olfers, 1818) and artibeus fimbriatus gray, 1838 (phyllostomidae) belonging to populations inhabiting the southernmost brazilian state of rio grande do sul. based on material examined and descriptions reported in the literature, is presented a general discussion on variation in the presence or absence of the third superior and inferior molars within members of the genus artibeus (leach, 1821). of the 104 a. lituratus skulls examined was found one with an extra upper incisor and one with an extra upper right third molar, along with one case of lower third molar agenesis. in the 44 a. fimbriatus skulls examined was found one with an extra upper right second premolar, a tooth which is usually absent in this species. the occurrence of the extra molar in a. lituratus and the second premolar in a. fimbriatus are atavistic, probably reflecting the ancestral a. lituratus in the case of the extra molar and, for the premolar, an even more ancient ancestor which lived before the divergence of the phyllostomidae family. regarding the genus as a whole, there is variation in the presence or absence of the third superior molar in practically all artibeus species, such variation occurring at both the intrapopulational level and geographically. there is also already a low frequency of absent third inferior molars in various artibeus species. both superior and inferior third molars are in the process of exclusion from the dentition of artibeus and do not occur in some species, and, when present, are always reduced in size and extremely simplified in their cuspidal pattern and do not participate in food processing: indicating a clear evolutionary trend to the loss of these teeth. such variation is important because variability in the presence and absence of third molars means that these teeth are not appropriate characteristic for the identification of artibeus species.
Mammalia, Chiroptera, Phyllostomidae, Artibeus planirostris (Spix, 1823) and Trachops cirrhosus (Spix, 1823): First record for the state of Sergipe, northeastern Brazil  [PDF]
Feijó, J. A.,Nunes, H. L.
Check List , 2010,
Abstract: Two specimens of bats deposited in the mammal collection of Universidade Federal da Paraíba have been found:one young female of Artibeus planirostris and one adult male of Trachops cirrhosus. These reports represent the first recordof these species for the state of Sergipe, northeastern Brazil.
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