Search

Your search keyword '"Massocato, Gabriel"' showing total 19 results
Start Over Author "Massocato, Gabriel" Search Limiters Peer Reviewed
19 results on '"Massocato, Gabriel"'

3. Genetic analysis brings evidence of the sexual selection hypothesis for an infanticide event in giant armadillos (Priodontes maximus).

Author

Rodrigues, Nayra T., Massocato, Gabriel F., Kluyber, Danilo, Gestich, Carla C., Saranholi, Bruno H., Galetti Jr, Pedro M., and Desbiez, Arnaud L. J.

Subjects
*SEXUAL selection, *INFANTICIDE, *SOCIOBIOLOGY, *ARMADILLOS, *PATERNITY
Abstract

Defined as the killing of a newborn individual by a conspecific, infanticide by males is widespread in mammals. Results from this paper used genetic analysis to confirm and characterize the first report of non-parental infanticide in giant armadillos. Genetic evidence demonstrates that the killer male is unrelated to the killed infant but is the father of the next offspring. This evidence supports the sexual selection hypothesis, in which infanticide is used to obtain increased access to breeding females. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

4. Exposing illegal hunting and wildlife depletion in the world's largest tropical country through social media data.

Author

El Bizri, Hani R., Oliveira, Marcela A., Rampini, Aline Pessutti, Knoop, Simon, Fa, Julia E., Coad, Lauren, Morcatty, Thais Queiroz, Massocato, Gabriel Favero, Desbiez, Arnaud L. J., Campos‐Silva, João Vitor, La Laina, Daniel Zani, Duarte, José Maurício Barbanti, Barboza, Rafael Sá Leitão, Campos, Zilca, da Silva, Marcélia Basto, Mângia, Sarah, Ingram, Daniel J., and Bogoni, Juliano A.

Subjects
HUNTING, WILDLIFE conservation, ANIMAL populations, WILDLIFE crimes, NATIVE species, BIOMES
Abstract

Copyright of Conservation Biology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
Full Text
View/download PDF

5. The local extinction of one of the greatest terrestrial ecosystem engineers, the giant armadillo (Priodontes maximus), in one of its last refuges in the Atlantic Forest, will be felt by a large vertebrate community

Author

Fontes, Bruno Lucas, Desbiez, Arnaud Leonard Jean, Massocato, Gabriel Fávero, Srbek-Araujo, Ana Carolina, Sanaiotti, Tânia Margarete, Bergallo, Helena Godoy, Ferreguetti, Átilla Colombo, Noia, Carlos Hartur Ribeiro, Schettino, Vitor Roberto, Valls, Renata, Moreira, Danielle de Oliveira, Gatti, Andressa, Mendonça, Eduardo de Sá, and Banhos, Aureo

Published
2020
Full Text
View/download PDF

6. NEOTROPICAL XENARTHRANS : a data set of occurrence of xenarthran species in the Neotropics

Author

Santos, Paloma Marques, Bocchiglieri, Adriana, Chiarello, Adriano Garcia, Paglia, Adriano Pereira, Moreira, Adryelle, de Souza, Agnis Cristiane, Abba, Agustin Manuel, Paviolo, Agustin, Gatica, Ailin, Medeiro, Akyllan Zoppi, Costa, Alan Nilo, Gallina, Alberto Gonzalez, Yanosky, Alberto A., Jesus, Alejandro, Bertassoni, Alessandra, Rocha, Alessandro, Bovo, Alex Augusto Abreu, Bager, Alex, Mol, Alexandra Cravino, Martensen, Alexandre Camargo, Faustino, Alexandre Casagrande, Lopes, Alexandre Martins Costa, Percequillo, Alexandre Reis, Vogliotti, Alexandre, Keuroghlian, Alexine, de laColina, María Alicia, Devlin, Allison L., García-Olaechea, Alvaro, Sánchez, Amadeo, Srbek-Araujo, Ana Carolina, Ochoa, Ana Cecilia, Oliveira, Ana Cristina Mendes, Lacerda, Ana Cristyna Reis, Campelo, Ana Kellen Nogueira, de Oliveira Paschoal, Ana Maria, Costa, Ana Raíssa Cunha, Meiga, Ana Yoko Ykeuti, Jesus, Anamélia Souza, Feijó, Anderson, Hirsch, André, da Silva, André Luiz Ferreira, Botelho, André Luis Moura, Regolin, André Luis, Lanna, André Monnerat, Nunes, André Valle, Kindel, Andreas, Moraes, Andreia Magro, Gatti, Andressa, Noss, Andrew J., Nobre, Andrezza Bellotto, Montanarin, Anelise, Deffaci, Ângela Camila, de Albuquerque, Anna Carolina Figueiredo, de Oliveira, Anne Karoline, Mangione, Antonio Marcelo, Pontes, Antonio Rossano Mendes, Bertoldi, Ariane Teixeira, Calouro, Armando Muniz, Desbiez, Arnaud L. J., Fernandes, Arthur, Ferreguetti, Atilla Colombo, da Silva, Maria Augusta Andrade, Zimbres, Barbara, Luciano, Beatriz Fernandes Lima, de Thoisy, Benoit, Niebuhr, Bernardo Brandão S., Papi, Bernardo, Gómez-Valencia, Bibiana, Santos, Bráulio A., Lima, Breno Campelo, Oliveira, Bruna Gomes, Santos, Bruna Silva, Campos, Bruno Augusto Torres Parahyba, Leles, Bruno, de Albuquerque França, Bruno Rodrigo, Lim, Burton, Oliveira, Caetano Troncoso, Cantagallo, Camila, Lara, Camila Clozato, Lima, Camila Silveira, Gestich, Carla Cristina, de Melo-Soares, Carla Danielle, Peres, Carlos A., Kasper, Carlos Benhur, Candia-Gallardo, Carlos, De Angelo, Carlos, Fragoso, Carlos Eduardo, de Freitas, Carlos Henrique, Salvador, Carlos Henrique, Brocardo, Carlos R., Melo, Carolina Depolito, Leuchtenberger, Caroline, Braga, Caryne, Sánchez-Lalinde, Catalina, Bueno, Cecília, Luna, Cecília Licarião, Rojano, Cesar, Hurtado, Cindy Meliza, dos Santos, Cinthya Chiva, Tellaeche, Cintia, Rosa, Clarissa, de Campos, Claudia Bueno, Silva, Cláudia Regina, Kanda, Claudia Zukeran, Jenkins, Clinton N., McDonough, Colleen, Trinca, Cristiano Trapé, da Cunha, Cristina Jaques, Widmer, Cynthia Elisa, Santos, Cyntia, Buscariol, Daiane, Carreira, Daiane Cristina, Carvalho, Danianderson Rodrigues, da Silva Ferraz, Daniel, Casali, Daniel, Thornton, Daniel, Vasconcellos, Daniela Rodrigues, Barcelos, Daniele, Brown, Danielle, Ramos, Daniella Leal, Moreira, Danielle Oliveira, Yogui, Débora Regina, Faria, Deborah, Sana, Denis Alessio, de Mattia, Denise Lidoro, Henz, Denison José, Friedeberg, Diana B, Carvalho, Diana Letícia Kruger Pacheco, Astúa, Diego, Queirolo, Diego, Varela, Diego M., Eaton, Donald P., Dias, Douglas Matos, Rivadeneira, Edgar Federico, Rocha, Ednaldo Cândido, de Abreu-Júnior, Edson Fiedler, Carrano, Eduardo, Santos, Eduardo Marques, Setz, Eleonore Zulnara Freire, Carvalho, Elildo Alves Ribeiro, de Almeida Chiquito, Elisandra, de Matos Cardoso, Elizandra, Mendonça, Eloisa Neves, D’Bastiani, Elvira, Vieira, Emerson M., Ramalho, Emiliano Esterci, Guijosa-Guadarrama, Emiliano, González, Enrique, Maggiorini, Erica Vanessa, Fischer, Erich, Aguiar, Erick Francisco, Castro, Érika Paula, de la Peña-Cuéllar, Erika, de Castro, Ernesto B. Viveiros, Brítez, Evelyn Beatriz, Vanderhoeven, Ezequiel Andres, Pedó, Ezequiel, Rocha, Fabiana Lopes, Girardi, Fabiane, de Oliveira Roque, Fabio, Mazim, Fábio Dias, de Barros, Fabio Monteiro, Martello, Felipe, Fantacini, Felipe Moreli, Pedrosa, Felipe, Peters, Felipe Bortolotto, Abra, Fernanda Delborgo, de Azevedo, Fernanda Cavalcanti, da Silva Santos, Fernanda, da Silva, Fernanda Guedes, Teixeira, Fernanda Zimmermann, Perini, Fernando Araujo, Passos, Fernando C., Carvalho, Fernando, de Azevedo, Fernando Cesar Cascelli, de Pinho, Fernando Ferreira, Gonçalves, Fernando, Lima, Fernando, Contreras-Moreno, Fernando M., Pedroni, Fernando, Tortato, Fernando Rodrigo, Santos, Filipe Pereira Rego, Caruso, Flavia, Tirelli, Flávia Pereira, Miranda, Flávia Regina, Rodrigues, Flávio Henrique Guimarães, Ubaid, Flávio Kulaif, Palmeira, Francesca Belem Lopes, da Silva, Franciane Almeida, Grotta-Neto, Francisco, de Souza, Franco Leandro, Costa, Francys Emanuelle, Pérez-Garduza, Freddy, Delsuc, Frédéric, Lemos, Frederico, Pinto, Fredy Ramirez, Boaglio, Gabriel Ivan, Massocato, Gabriel Fávero, Preuss, Gabriel, Hofmann, Gabriel Selbach, Aguiar, Gabriel Lima, Oliveira, Gabriela Schuck, Duarte, Gabriela Teixeira, Beca, Gabrielle, Giné, Gastón Andrés Fernandez, Batista, Graziele Oliveira, Gil, Guillermo Eduardo, Gonsioroski, Gustavo, Secco, Helio, Medeiros, Hugo Reis, Coelho, Igor Pfeifer, Franceschi, Ingridi Camboim, Bernardi, Itiberê, de la Torre, J. Antonio, Zocche, Jairo José, Seibert, Jardel Brandão, de Faria Falcão, Jéssica Caroline, Dias, Jéssica Helena Mangueira, Nodari, Joana Zorzal, Oliveira, João Alves, Giovanelli, João Gabriel Ribeiro, Favoretti, João Paulo Pandini, Polisar, John, Sponchiado, Jonas, Cherem, Jorge José, Ramírez, José Fernando Moreira, de Toledo, José Julio, Duarte, José Maurício Barbanti, de Matos, Jose Roberto, Arrabal, Juan Pablo, de Faria Oshima, Júlia Emi, Ribeiro, Juliana Fernandes, Bogoni, Juliano André, Pacheco, Julio Javier Chacón, Schuchmann, Karl L., Ferraz, Katia M. P. M. B., dos Santos Everton, Laís, Bailey, Larissa L., Gonçalves, Larissa Oliveira, Cullen, Laury, de Andrade, Layla Reis, Trevelin, Leonardo Carreira, Bonjorne, Lilian, de Almeida Rodrigues, Livia, Leuzinger, Lucas, Perillo, Lucas Neves, Araújo, Luciana Souza, Hufnagel, Ludmila, Ribeiro, Ludmilla Oliveira, Bernardo, Luis Renato Rezende, Oliveira-Santos, Luiz Gustavo Rodrigues, Varzinczak, Luiz Henrique, Borges, Luiz Henrique Medeiros, Guimarães, Luiza Neves, Möcklinghoff, Lydia, Oliveira, Marcela Alvares, Magioli, Marcelo, de Assis Jardim, Márcia Maria, de Oliveira, Márcio Leite, Tortato, Marcos Adriano, Dums, Marcos, Iezzi, Maria Eugenia, Pereira, Maria João Ramos, Jorge, Maria Luísa, de Castro Morini, Maria Santina, Landis, Mariana Bueno, Xavier, Mariana Sampaio, Barros, Marília A. S., da Silva, Marina Lima, Rivero, Marina, Zanin, Marina, Marques, Marinêz Isaac, Alves, Mario Henrique, Di Bitetti, Mario S., Alvarez, Martín R., Graipel, Maurício Eduardo, Godoi, Mauricio Neves, Benedetti, Maximiliano Augusto, Beltrão, Mayara Guimarães, Monteiro, Miguel Coutinho Moretta, de Paula, Milton José, Perilli, Miriam Lucia Lages, da Silva, Murillo Prado, Villar, Nacho, De Albuquerque, Natasha Moraes, Canassa, Nathália F., Filho, Newton Mota, da Rosa Oliveira, Nicole, Pasqualotto, Nielson, Cáceres, Nilton Carlos, Attias, Nina, Favarini, Marina Ochoa, Ribeiro, Otávio Santi, Gonçalves, Pablo Rodrigues, da Rocha, Patrício Adriano, Condé, Paula Alves, Akkawi, Paula, Cruz, Paula, Lira, Paula Koeler, Ferreira, Paula Modenesi, Arroyo-Gerala, Paulina, Hartmann, Paulo Afonso, de Tarso Zuquim Antas, Paulo, Marinho, Paulo Henrique, de Faria Peres, Pedro Henrique, Peña-Mondragón, Juan Luis, Lombardi, Pryscilla Moura, de Souza Laurindo, Rafael, Alves, Rafael Souza Cruz, Grangeiro, Raissa Danielle Praxedes, Silva, Ramon Lima, Beltrão-Mendes, Raone, Bonikowski, Renata Twardowsky Ramalho, Reppucci, Juan, Arrais, Ricardo Corassa, Sampaio, Ricardo, Sartorello, Ricardo, Bovendorp, Ricardo Siqueira, McNab, Roan, Hack, Robson Odeli Espíndola, Magalhães, Rodolfo Assis, Araújo, Rodrigo Costa, de Almeida Nobre, Rodrigo, Pérez, Rodrigo Raúl León, Massara, Rodrigo Lima, de Paula, Rogério Cunha, Anleu, Rony García, Marques, Rosane Vieira, Dornas, Rubem, Rolim, Samir Gonçalves, Cavalcanti, Sandra M. C., Lima, Saulo Ramos, Ballari, Sebastián A., Santamaría, Silvia Benito, Silva, Sofia Marques, Age, Stefani Gabrieli, Godim, Tayana, Sobral-Souza, Thadeu, Maccarini, Thiago Bernardes, Rodrigues, Thiago Ferreira, Piovezan, Ubiratan, da Cunha Tavares, Valéria, Quiroga, Verónica Andrea, Krepschi, Victor Gasperotto, Filho, Vilmar Picinatto, Bastazini, Vinícius Augusto Galvão, de Oliveira Gasparotto, Vinicius Peron, Orsini, Vinicius Santana, Layme, Viviane Maria Guedes, Hannibal, Wellington, Dáttilo, Wesley, de Carvalho, William Douglas, Loughry, William James, Di Blanco, Yamil Edgardo, Núñez-Regueiro, Mauricio M., Giubbina, Marina Furlan, Passamani, Marcelo, de Alagão Querido, Luciano Carramaschi, da Costa Toledo, Gustavo Alvez, Ribeiro, Igor Kintopp, Quintilham, Lucas, de Bustos, Soledad, de la Maza, Javier, Neto, Jorge Ferreira Lima, Von Kossel de Andrade Silva, Katyucha, Sartorello, Leonardo, Rampim, Lilian Elaine, Marás, Gustavo A., Camino, Micaela, Freitas-Junior, Mozart, Perovic, Pablo Gaston, Paolino, Roberta Montanheiro, Ferreira, Scarlat Dalva, Towns, Valeria, Esperandio, Isadora Beraldi, Aximoff, Izar, Beduschi, Júlia, Guenther, Mariana, de Cassia Bianchi, Rita, Keuroghlian-Eaton, Sean, Mendes, Sérgio Lucena, de Fatima Cunha, Lerrane, Cirignoli, Sebastián, Ciocheti, Giordano, do Prado, Helena Alves, Fernandes-Ferreira, Hugo, de Sena, Liana Mara Mendes, Yamane, Marcelo Hideki, Brennand, Pamella G. G, da Silva, Rayana Diniz, Escobar, Santiago, Endo, Whaldener, Hurtado, Rafael Reyna, Gontijo, Nila Rássia Costa, Marsh, Laura K., Severo, Magnus Machado, Pardo, Julia Martinez, Costa, Sebastián Andrés, Melo, Geruza Leal, Santana, Gindomar Gomes, de Miranda Mourão, Guilherme, Gaspari, Gustavo Gabirele, Duarte, Herbert, Cabral, Hugo, da Silva, Leonardo Henrique, Mendonça, Luana, Barbosa, Lucas Lobo, dos Santos, Manuela Vieira, Moraes, Marcela Figuerêdo Duarte, Gordo, Marcelo, Versiani, Natalia Fraguas, Cantero, Nicolás, Pays, Olivier, Guedes, Patrícia Gonçalves, Colas-Rosas, Paul François, Ribeiro, Paulo, Renaud, Pierre-Cyril, Hoogesteijn, Rafael Jan, Ayala, Rodrigo, da Cunha, Rogério Grassetto Teixeira, Schaub, Roxane, Laurito, Sabrina, Betkowski, Samuel Eurich, Cortez, Sara, Silva, Shirley Seixas Pereira, de Oliveira, Tadeu Gomes, Spironello, Wilson Roberto, Gengler, Nicholas, Hidalgo, Mircea Mihart, Juárez, Rugieri, Iglesias, Jesús A, Anacleto, Teresa Cristina, de Souza Fialho, Marcos, Cavicchioli, Guilherme, Beccato, Maria Angélica Barbosa, da Silva, Marcelo, Neto, Omar Correia, Lopes, Karine Galisteo Diemer, Godoy, Leandro Perez, Luiz, Micheli Ribeiro, Rojas Bonzi, Viviana B., Ferreira, Guilherme Braga, Oliveira, Marcelo Juliano Rabelo, Hinojosa, Javier, de Oliveira, Luiz Flamarion Barbosa, Nagy-Reis, Mariana Baldy, Ramirez, Sixto Fernández, Concone, Henrique Villas Boas, Mourthe, Italo, Martínez-Lanfranco, Juan A., Zanoni, Juliani Bruna, Moreira, Tainah Cruz, Guarderas, Zoila Vega, Bazilio, Sérgio, Cervini, Marcelo, Pinheiro, Marcell Soares, Morato, Ronaldo Gonçalves, Peroni, Nivaldo, Trigo, Tatiane Campos, Machado, Ricardo Bomfim, Gaspari, Fernando, Koenemann, Joceleia G., Rudolf, Juan Carlos, Benchimol, Maíra, Vieira, Marcus Vinícius, Retta, Lucía Martínez, Santiago, Pablo Gerardo Fernández, Ciccia, Paula Gonzalez, Estrela, Pedro Cordeiro, Carvalho, Santiago, Esbérard, Carlos Eduardo Lustosa, de la Cruz, Yaribeth Bravata, Castro-Prieto, Jessica, Braga, Ricardo Miranda, Cartes, Jose Luis, Andrade-Núñez, María José, Denkiewicz, Natalia Mariana, Falconi, Nereyda, Pezzuti, Juarez Carlos Brito, del Castillo Cordero, Hugo Fernando, de Sousa, Luziene Conceição, de Gaspari Júnior, Roque Lázaro, Santos-Filho, Manoel, Almeida, Josué Santos, Thompson, Jeffrey J., dos Santos, Juliana Silveira, Pereira-Ribeiro, Juliane, Burs, Kathrin, da Silva, Kena Ferrari Moreira, Velilla, Marianela, da Silva, Marina Xavier, de la Sancha, Noé U., Pinheiro, Paula Fabiana, de Castilho, Pedro Volkmer, Bercê, William, Assis, Julia Camara, Tonetti, Vinicius Rodrigues, Alves-Eigenheer, Milene, Chinem, Simonne, Honda, Laura K., de Godoy Bergallo, Helena, Alberici, Vinicius, Wallace, Robert, Krauer, Juan Manuel Campos, Ribeiro, Milton Cezar, and Galetti, Mauro

Published
2019

11. Surveillance of ticks (Acari: Ixodidae) on monitored free-ranging giant anteaters and on road-killed anteaters and armadillos in the State of Mato Grosso do Sul, Midwestern Brazil.

Author

Martins, Thiago F., Yogui, Débora R., Alves, Mario H., Kluyber, Danilo, Massocato, Gabriel, Labruna, Marcelo B., and Desbiez, Arnaud L. J.

Subjects
TICKS, IXODIDAE, MITES, ARMADILLOS, WILDLIFE conservation, DOGS
Abstract

The article discusses research which monitored the occurrence of ticks on monitored free-ranging giant anteaters and on road-killed anteaters and armadillos in the state of Mato Grosso du Sul in Brazil. Topics include the number of ticks according to tick species on anteaters and armadillos sampled, the major role of giant anteaters as hosts for A. sculptum adult ticks, and the importance of both the monitoring studies of free-ranging animals and the monitoring of carcasses on highways.

Published
2023
Full Text
View/download PDF

12. What a few hairs can tell us about the resource use of giant armadillos.

Author

MAGIOLI, Marcelo, ATTIAS, Nina, MASSOCATO, Gabriel, KLUYBER, Danilo, MOREIRA, Marcelo Zacharias, FERRAZ, Katia Maria Paschoaletto Micchi de Barros, CHIARELLO, Adriano Garcia, and DESBIEZ, Arnaud L. J.

Subjects
HAIR analysis, ARMADILLOS, NITROGEN isotopes, FORAGING behavior, MIRROR neurons, RUMEN (Ruminants), HAIR, STABLE isotopes
Abstract

Understanding of resource requirements of vulnerable species is key for conservation planning. Here, we used stable carbon (δ13C) and nitrogen isotopes (δ15N) of hair from giant armadillos (Priodontes maximus) to understand individual resource use. We collected hair from 19 giant armadillos analyzing 34 samples from the Brazilian Pantanal and compared the resource use between sexes and age classes. We also assessed the relationship of isotopic values with individuals' body mass and the habitat type used. We observed a wide variation in resource use by giant armadillos, showing that individuals consume prey that feeds on distinct resources and occupies different habitat types, indicating that there is individual variation in foraging behavior. Most giant armadillos presented a mixed diet (C3/C4 resources, forests/open areas), but a quarter of individuals had strictly C4 diets (open areas). Males are more prone to forage on C4 resources, presenting an isotopic niche 2.6‐times larger than that of females. Subadults presented diets more associated with habitats with high arboreal cover (C3 resources, forests), while adults foraged more in open areas (C4 resources). This result is mirrored by the positive relationship between δ13C values and body mass, suggesting that larger giant armadillos tend to feed more in open areas. We observed that δ13C values decreased as individuals increased the use of habitats with high arboreal cover. We stress the importance of conserving the natural mosaic in the Pantanal landscape for the species persistence, given that giant armadillos require all habitat types to fulfill their dietary, spatial, and developmental needs. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

13. The role of environmental temperature on movement patterns of giant anteaters.

Author

GIROUX, Aline, ORTEGA, Zaida, BERTASSONI, Alessandra, DESBIEZ, Arnaud Léonard Jean, KLUYBER, Danilo, MASSOCATO, Gabriel Favero, DE MIRANDA, Guilherme, MOURÃO, Guilherme, SURITA, Luciana, ATTIAS, Nina, BIANCHI, Rita de Cassia, GASPAROTTO, Vinícius Peron de Oliveira, and OLIVEIRA‐SANTOS, Luiz Gustavo Rodrigues

Subjects
ENVIRONMENTALISM, EXTREME weather, MAMMAL behavior, FOREST reserves, BODY temperature, MAMMAL conservation
Abstract

Mammals can show conspicuous behavioral responses to thermal variation, including changes in movement patterns. We used an integrative approach to understand how environmental temperature can drive the movement behavior of a mammal with low capacity for physiological thermoregulation, the giant anteater (Myrmecophaga tridactyla). We tracked 52 giant anteaters in 7 areas throughout the Brazilian savannah. We estimated the distance moved, area used, use of forest areas, and mean environmental temperature for each monitoring day of each individual. We modeled these data with Mixed Structural Equations — considering the possible interactions between our variables and controlling for sex and body mass. Giant anteaters reduced displacement and increased forest use with decreasing environmental temperature, probably because of their low body heat production. It is possible that they reduce distance moved and area used by reducing the duration of activity. With decreasing temperature, forest habitats become warmer than open ones, besides buffer rain and chilly winds. Reducing displacement and using forests are important strategies to reduce body heat loss and the energetic costs of thermoregulation. However, decreasing movement can limit food access and, consequently, fitness. Therefore, we highlight the importance of forests as thermal shelters. With increasing frequency and intensity of extreme weather events, we showed the need to preserve forest patches to offer suitable conditions for tropical mammals' behavioral thermoregulation. In this context, policies favoring deforestation on Brazilian territory are especially worrisome. Finally, we emphasize the need of integrative approaches to understand the complex interactions between organisms and the environment. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

14. Zoonotic parasites infecting free‐living armadillos from Brazil.

Author

Kluyber, Danilo, Desbiez, Arnaud L. J., Attias, Nina, Massocato, Gabriel F., Gennari, Solange M., Soares, Herbert S., Bagagli, Eduardo, Bosco, Sandra M. G., Garcés, Hans G., Ferreira, Jessica da S., Fontes, Amanda N.B, Suffys, Philip N., Meireles, Luciana R., Jansen, Ana M., Luna, Expedito J.A., and Roque, André L. R.

Subjects
TRYPANOSOMA cruzi, HANSEN'S disease, ARMADILLOS, MYCOBACTERIUM leprae, PARASITES, PARACOCCIDIOIDES brasiliensis
Abstract

Armadillos are specialist diggers and their burrows are used to find food, seek shelter and protect their pups. These burrows can also be shared with dozens of vertebrate and invertebrate species and; consequently, their parasites including the zoonotics. The aim of this study was to diagnose the presence of zoonotic parasites in four wild‐caught armadillo species from two different Brazilian ecosystems, the Cerrado (Brazilian savanna) and the Pantanal (wetland). The investigated parasites and their correspondent diseases were: Toxoplasma gondii (toxoplasmosis), Trypanosoma cruzi (Chagas disease), Leishmania spp., (leishmaniasis), Paracoccidioides brasiliensis (Paracoccidioidomicosis) and Mycobacterium leprae (Hansen's disease). Forty‐three free‐living armadillos from Pantanal and seven road‐killed armadillos from the Cerrado were sampled. Trypanosoma cruzi DTU TcIII were isolated from 2 out of 43 (4.65%) armadillos, including one of them also infected with Trypanosoma rangeli. Antibodies anti‐T. gondii were detected in 13 out of 43 (30.2%) armadillos. All seven armadillos from Cerrado tested positive for P. brasiliensis DNA, in the lungs, spleen, liver fragments. Also, by molecular analysis, all 43 individuals were negative for M. leprae and Leishmania spp. Armadillos were infected by T. cruzi, T. rangeli, P. brasiliensis and presented seric antibodies to T. gondii, highlighting the importance of those armadillos could have in the epidemiology of zoonotic parasites. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

15. ANESTHESIA AND SURGERY PROTOCOLS FOR INTRA-ABDOMINAL TRANSMITTER PLACEMENT IN FOUR SPECIES OF WILD ARMADILLO.

Author

Kluyber, Danilo, Pinho Gomez Lopez, Rodrigo, Massocato, Gabriel, Attias, Nina, and Léonard Jean Desbiez, Arnaud

Abstract

The anatomy and physiology of armadillos make anesthetic procedures and the placement of telemetry devices challenging. From June 2011 to November 2019, a total of 73 free-living armadillos were captured and anesthetized in the Pantanal, Brazil. Giant (Priodontes maximus), six-banded (Euphractus sexcinctus), southern naked-tailed (Cabassous unicinctus), and nine-banded (Dasypus novemcinctus) armadillos were divided into two groups. In group 1, 30 armadillos were anesthetized for collection of biological samples, body measurements, and placement of a microchip tag. Anesthetic combination BDM was applied: butorphanol tartrate, detomidine hydrochloride, and midazolam hydrochloride, each at 0.1 mg/kg. In group 2, 43 armadillos received ketamine hydrochloride at 10 mg/kg 20 min after BDM injection, and intra-abdominal radio transmitters were surgically implanted. The transmitter was inserted freely into the abdominal cavity. Vital signs were monitored during anesthesia every 10 min and varied within species and between groups. Rectal temperature varied from 33.1 ± 1.36 to 35.34 ± 1.21°C, heart rate (beats/min) from 19 ± 2.14 to 84.71 ± 9.25, respiratory rate (breaths/min) from 11 ± 4.16 to 31 ± 2.82, and oxygen saturation values (SPO2%) from 84.17% ± 2.39 to 98% ± 1.20. Both groups received the antagonist combination NYF: naloxone hydrochloride (0.02 mg/kg), yohimbine hydrochloride (0.125 mg/kg), and flumazenil (0.01 mg/kg). Recovery varied according to intravenous or intramuscular injection from 2 ± 4 to 8.08 ± 2.93 min respectively. BDM protocol was considered satisfactory and provided enough time to complete the procedures (60 ± 85 to 133.20 ± 9.12 min) according to the species and group. Ketamine added to the BDM provided enough time and a surgical plane of anesthesia (97 ± 22 to 137 ± 39.5 min). The surgical procedure technique chosen did not appear to have a negative impact on armadillos studied. Implantable transmitters provide a cost-effective method for long-term monitoring of wild individuals. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

16. Life stage, sex, and behavior shape habitat selection and influence conservation strategies for a threatened fossorial mammal.

Author

DESBIEZ, Arnaud Leonard Jean, KLUYBER, Danilo, FAVERO MASSOCATO, Gabriel, RODRIGUES OLIVEIRA-SANTOS, Luiz Gustavo, and ATTIAS, Nina

Subjects
HABITAT selection, RARE mammals, KEYSTONE species, FOREST conversion, BIODIVERSITY conservation, FIRE ecology, ECOSYSTEM services
Abstract

Resource selection provides essential information about species strategies to meet their biological requirements, and is key for conservation strategies development. Although intraspecific variation in behavior is widespread, most resource selection studies have ignored intrapopulation variability. We aim to understand if individuals have different habitat selection preferences depending on life stage, sex, and behavioral state. As a model, we use the vulnerable fossorial giant armadillo Priodontes maximus in the Pantanal. We tracked 23 individuals between 2010 and 2018 using telemetry (12240 locations). Habitat selection during activity and rest were estimated using step and resource selection functions, respectively. Giant armadillos selected different landscape features according to sex, life stage and behavioral state highlighting the potential bias in habitat selection studies based only on one life stage or behavioral state, especially for fossorial species. Younger individuals presented higher selection strength of forests, with denser vegetation and less predation risk, for activity and rest, which is not common for species with long parental care. Sexual differences evidenced that females, which are exclusively responsible for parental care, presented stronger selection of forests and closed savannas during rest. Closed savannas, with high food availability, were selected for activity irrespective of sex or age. Floodable areas were selected only by adult males, presumably to improve mobility. Our findings indicated that females select habitats in a way to balance offspring safety and food availability, while males are risk takers and explore space widely. Forests showed to be fundamental for the species survival, especially during early life stages. Unfortunately, harmful management practices recently adopted, e.g., conversion of forests into pasture and fires, affect the habitats selected by this ecosystem engineer. Giant armadillos can act as umbrella species, as strategies targeted at protecting this charismatic large mammal could provide wider benefits for biodiversity conservation and ecosystem services in the Pantanal. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

17. COMPARING DENSITY ESTIMATES FROM A SHORT-TERM CAMERA TRAP SURVEY WITH A LONG-TERM TELEMETRY STUDY OF GIANT ARMADILLOS (Priodontes maximus).

Author

Desbiez, Arnaud L. J., Massocato, Gabriel F., Attias, Nina, and Cove, Michael V.

Subjects
*POPULATION density, *ARMADILLOS
Abstract

Population density is a key parameter in conservation, but remains a challenging metric to obtain for rare and cryptic species. We designed a camera trap array targeting the elusive giant armadillo (Priodontes maximus), estimated densities using spatially explicit capture-recapture models, and compared these with estimates from a previous eight-year telemetry study in the area. Density from the six-month camera trap survey (7.69 individuals/100km²) is nearly identical to that from the intensive telemetry study (7.65 ind./100 km²). We recommend the use of systematic camera trap arrays, which are much less expensive and time consuming, to obtain insights on the population status of elusive species across the Neotropics and inform conservation. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

18. Insights into giant armadillo (Priodontes maximus Kerr, 1792) reproduction.

Author

Desbiez, Arnaud Leonard Jean, Massocato, Gabriel Favero, and Kluyber, Danilo

Subjects
*ARMADILLOS, *BIRTH certificates, *ANIMAL sexual behavior, *REPRODUCTION, *INFANTICIDE
Abstract

This paper presents unique data on the reproductive behavior of the rare giant armadillo (Priodontes maximus), including gestation, inter-birth intervals, number of offspring and parental care. It also describes a potential non-parental infanticide. The study used telemetry, camera traps and track observations for over 7 years in a 300-km2 area in the central Brazilian Pantanal. Females with young were recorded 5 times. Reproductive events did not appear to be seasonal. A 5-month gestation period was estimated. Parental care is long, as the offspring is completely dependent on its mother's milk until 6–8 months of age. Weaning was estimated to occur at 11–12 months, but the offspring continued to be dependent on its mother's burrows until 18 months old. Three births were recorded over a 6-year period for one individual. The offspring from the first birth recorded was killed at 4 weeks of age in a potential infanticide, but 7 months after the first birth, a second offspring was born. A third birth was recorded 3 years after the second birth. Results from this study suggest that the population growth rate of giant armadillos is very low and the species can therefore easily be locally extirpated. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

19. How giant are giant armadillos? The morphometry of giant armadillos (Priodontes maximus Kerr, 1792) in the Pantanal of Brazil.

Author

Desbiez, Arnaud Leonard Jean, Massocato, Gabriel Favero, Kluyber, Danilo, Luba, Camila Do Nascimento, and Attias, Nina

Subjects
*MORPHOMETRICS, *ECOLOGY, *ARMADILLOS, *GENITALIA, *SEXUAL dimorphism, *FISHER discriminant analysis
Abstract

Morphometrics is the quantitative study of organisms shape and size. Intrinsic (e.g. age and sex) and extrinsic (e.g. abiotic conditions) factors can be related to morphological diversity and can aid in the study of species biology and ecology. Giant armadillos have rarely been captured in the wild and very little is known about the species. Here we aimed to characterize body measurements of free-living giant armadillos (Priodontes maximus) in mid-western Brazil and evaluate how these measurements vary between sexes and age classes to gain insights on the species biology and ecology. We captured 28 armadillos in the study area, 18 adults (9 males, 9 females) and 10 subadults (6 males, 4 females) and assessed twenty-five different morphometric measurements for each captured armadillo. To evaluate if age class and sex of adult individuals can be differentiated by a concise set of morphometric measurements we used Linear Discriminant Analyses. We encountered significant morphometric differentiation between age classes and report seven parameters that best discriminate individuals between age classes which may allow the identification of individual's age class in future studies. The wide morphometric variation in subadults could indicate that individuals have a long developmental process between weaning and sexual maturity. Morphometric differentiation between sexes was possible through the association of three morphological parameters and adult males are larger and heavier than females. Although we were limited by the number of animals sampled in previous studies, females presented similar body mass across studied sites, while males presented variation of up to ten kilos across the species distribution. This indicates that the degree of sexual dimorphism can vary among localities and raises interesting ecological questions regarding the species reproductive system. This variation can be related to abiotic factors (e.g. latitude, temperature and topography), differences in productivity among biomes (i.e. resource abundance and distribution), population density, and/or genetic variation between populations and should be explored further. We propose the measurements used here be used as standard measurements for this species since it encompasses all of the most distinctive features of the species and allows a full morphological characterization, enabling the future comparison between populations of this widely distributed species. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results