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13 results on '"Leonor Valenzuela"'

1. Evaluation of alternative conservation strategies for the blue-billed curassow Crax alberti in the Middle Magdalena Valley, Colombia

Author

Igor F. Valencia, Gustavo H. Kattan, Leonor Valenzuela, Lina Caro, Fernando Arbelaez, and German Forero-Medina

Subjects
Blue-billed curassow, camera-trap sampling, Colombia, conservation strategies, Crax alberti, occupancy, population viability analysis, General. Including nature conservation, geographical distribution, QH1-199.5
Abstract

The blue-billed curassow Crax alberti is an endemic Colombian species categorized as Critically Endangered on the IUCN Red List because of the effects of hunting and habitat loss. Conservation and management actions are required to ensure its persistence in the forest remnants across its range. We conducted a population viability analysis for a population in the municipality of Yondó, Antioquia, based on data collected in the field and available information on the reproductive ecology of the species. We evaluate seven realistic conservation scenarios by comparing the effects that changes in mortality from hunting, carrying capacity and initial population size have on the survival probability of the population. Our results indicate that: (1) the studied population is not viable over a 100-year period under current conditions; (2) mortality as a result of hunting and the size of the initial population have the greatest impacts on the mean time to extinction; (3) a strategy based on eliminating hunting in the two sites with the largest forest remnants in the landscape could ensure the viability of the population over a 100-year period; and (4) other strategies (i.e. population supplementation with captive-bred individuals, reduction of deforestation in the landscape) do not guarantee the viability of the population if mortality from hunting remains constant, even at low levels. These results confirm the susceptibility of the blue-billed curassow to the threats it faces in this landscape, particularly hunting, and provide information on the conservation actions that could allow this remaining population to prevail in the long term.

Published
2023
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2. Densidad y uso de hábitat de la pava caucana (Penelope perspicax) en los Farallones de Cali, Colombia

Author

Juan David Valencia Velasco, Felipe A. Estela, Eliana Fierro-Calderón, Leonor Valenzuela, and Daniel Osorio-Domínguez

Subjects
cacería, cracidae, especies amenazadas, fragmentación, poblaciones, Biology (General), QH301-705.5
Abstract

La pava caucana (Penelope perspicax) es un ave endémica de las laderas del valle geográfico del río Cauca en Colombia, considerada en peligro de extinción. La pérdida de hábitat y la cacería han sido sus principales amenazas, lo que ha generado la reducción y aislamiento de sus poblaciones. El objetivo de este estudio fue determinar la densidad poblacional en una localidad en los Farallones de Cali y desarrollar modelos de ocupación, para evaluar factores que expliquen el uso de hábitat de la especie. Obtuvimos una densidad de 9 ind.km-2, el valor más bajo de los estimados disponibles para la especie; además, encontramos una relación estrecha entre el área de cobertura boscosa y el uso del hábitat de la especie. Los resultados indican la necesidad de conservar los remanentes de bosque y mantener la conectividad, ya que a pesar de que la especie puede utilizar gran variedad de hábitats, la probabilidad de uso aumenta en relación a las áreas disponibles de bosque. Recomendamos que se aumenten los esfuerzos de muestreo en este núcleo poblacional, asegurando variabilidad temporal y espacial, con el fin de contar con mejor información para su manejo en este núcleo.

Published
2022
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3. Bajando la escala en las redes de interacción planta-frugívoro para un ensamblaje de consumidores de ficus

Author

Leonor Valenzuela Ospina and Gustavo H. Kattan

Subjects
andes, aves, tamaño corporal de aves, fuerza de interacción, suministro de recursos, Biology (General), QH301-705.5
Abstract

Medir la fuerza de la interacción es clave para comprender la dinámica de las redes mutualistas. Sin embargo, la variación intraespecífica en los rasgos de las especies puede afectar los patrones y resultados de las interacciones a una escala aún no medida. En este estudio, exploramos cómo la variación individual en la producción de frutos en una especie de Ficus modula el consumo de frutos por aves. El grado, expresado como número de especies, y las tasas de visitas, expresadas como número individuos y su equivalente en biomasa, fueron independientes del tamaño de la cosecha. Sin embargo, el número acumulado para las tres variables fue proporcional al tamaño de la cosecha. El número de especies de aves pequeñas (

Published
2022
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4. Wetlands are keystone habitats for jaguars in an intercontinental biodiversity hotspot.

Author

Joe J Figel, Sebastián Botero-Cañola, German Forero-Medina, Juan David Sánchez-Londoño, Leonor Valenzuela, and Reed F Noss

Subjects
Medicine, Science
Abstract

Agricultural development was the major contributor to South America's designation as the continent with the highest rates of forest loss from 2000-2012. As the apex predator in the Neotropics, jaguars (Panthera onca) are dependent on forest cover but the species' response to habitat fragmentation in heterogeneous agricultural landscapes has not been a subject of extensive research. We used occupancy as a measure of jaguar habitat use in Colombia's middle Magdalena River valley which, as part of the intercontinental Tumbes-Chocó-Magdalena biodiversity hotspot, is exceedingly fragmented by expanding cattle pastures and oil palm plantations. We used single-season occupancy models to analyze 9 months of data (2015-2016) from 70 camera trap sites. Given the middle Magdalena's status as a "jaguar corridor" and our possible violation of the occupancy models' demographic closure assumption, we interpreted our results as "probability of habitat use (Ψ)" by jaguars. We measured the associations between jaguar presence and coverage of forest, oil palm, and wetlands in radii buffers of 1, 3, and 5 km around each camera trap. Our camera traps recorded 77 jaguar detections at 25 of the camera trap sites (36%) during 15,305 trap nights. The probability of detecting jaguars, given their presence at a site, was 0.28 (0.03 SE). In the top-ranked model, jaguar habitat use was positively influenced by wetland coverage (β = 7.16, 3.20 SE) and negatively influenced by cattle pastures (β = -1.40, 0.63 SE), both in the 3 km buffers. We conclude that wetlands may serve as keystone habitats for jaguars in landscapes fragmented by cattle ranches and oil palm plantations. Greater focus on wetland preservation could facilitate jaguar persistence in one of the most important yet vulnerable areas of their distribution.

Published
2019
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5. Bajando la escala en las redes de interacción planta-frugívoro para un ensamblaje de consumidores de ficus

Author

Gustavo H. Kattan and Leonor Valenzuela Ospina

Subjects
tamaño corporal de aves, Ecology, aves, andes, fuerza de interacción, QH301-705.5, Animal Science and Zoology, suministro de recursos, Plant Science, Biology (General), Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation
Abstract

Medir la fuerza de la interacción es clave para comprender la dinámica de las redes mutualistas. Sin embargo, la variación intraespecífica en los rasgos de las especies puede afectar los patrones y resultados de las interacciones a una escala aún no medida. En este estudio, exploramos cómo la variación individual en la producción de frutos en una especie de Ficus modula el consumo de frutos por aves. El grado, expresado como número de especies, y las tasas de visitas, expresadas como número individuos y su equivalente en biomasa, fueron independientes del tamaño de la cosecha. Sin embargo, el número acumulado para las tres variables fue proporcional al tamaño de la cosecha. El número de especies de aves pequeñas (

Published
2022

6. Landscape species approach for biodiversity conservation: a quantitative assessment of effectiveness

Author

Leonor Valenzuela, Carlos A. Saavedra-Rodríguez, German Forero-Medina, and Academia Colombiana de Ciencias Exactas, Físicas y Naturales

Subjects
Counterfactual thinking, Occupancy, Monitoring, General Mathematics, Biodiversity, Wildlife, General Physics and Astronomy, Conservation, Especies, Colombia, Program evaluation, General Biochemistry, Genetics and Molecular Biology, Biodiversidad, History and Philosophy of Science, Deforestation, Ecosystem, Extinction, business.industry, Environmental resource management, Monitoreo, Tropics, General Chemistry, Evaluación de impacto, Trópico, General Energy, Geography, Conservación, General Earth and Planetary Sciences, General Agricultural and Biological Sciences, Scale (map), business
Abstract

Los programas de conservación de especies son una estrategia común para enfrentar la pérdida de biodiversidad. El concepto de especies paisaje se basa en la selección de un conjunto de especies cuyas características permiten determinar y abordar presiones que afectan la biodiversidad en un territorio. Esta aproximación tiene dos supuestos principales: que la conservación de las especies paisaje deriva en 1) la conservación de otras especies del sistema y 2) en la protección de la estructura del ecosistema. Para evaluar estas hipótesis usamos el ejemplo del “Proyecto Vida Silvestre”, una iniciativa de conservación desarrollada bajo esta aproximación en dos áreas de Colombia. Evaluamos de forma cuantitativa la primera hipótesis usando modelos de ocupación multitemporada, con datos de cámaras trampa (2015 a 2017). Para la segunda hipótesis, estimamos el efecto de las acciones sobre la pérdida de bosque a escala de predio y de paisaje, comparando las tasas de deforestación con áreas similares en ausencia de las acciones (contrafactual). Las intervenciones, en particular los acuerdos de conservación, aumentaron las tasas de colonización y redujeron las tasas de extinción de algunas especies paisaje y otros vertebrados. Otras especies del sistema no se vieron impactadas por esta estrategia. La deforestación fue menor en el paisaje que en al área circundante, pero no se evidenció un efecto significativo. A escala del predio, en el 2017 los acuerdos redujeron la deforestación. Los diseños presentados permitieron establecer relaciones de causalidad y probar hipótesis claras para medir el éxito de las intervenciones en programas de conservación similares. Species-oriented conservation programs are a common strategy to halt biodiversity loss. The landscape species concept is based on the selection of a group of species with certain characteristics allowing to identify and address the threats to biodiversity present in a particular area. It has two main assumptions: 1) that conservation of landscape species will result in the conservation of other species in the ecosystem, and 2) that it will also maintain the ecosystem structure and its corresponding functions. To assess these hypotheses, we rely on data from the Wildlife Project, a conservation initiative developed with this approach in two areas of Colombia. We evaluated in a quantitative fashion the first hypothesis through multi-season occupancy models using data from camera traps (2015 to 2017). We then estimated the effect of conservation actions in reducing forest loss at the scale of individual land properties and at the landscape scale by comparing deforestation rates in similar areas but in the absence of conservation actions (counterfactual). The strategies, specifically conservation agreements, increased colonization rates and reduced extinction rates for some landscape species and other vertebrates. Other species were not affected by this specific strategy. Deforestation was lower in the landscape than in adjacent areas, although there was no significant effect. At the individual property scale, in 2017 conservation agreements reduced deforestation rates. The methods presented here allow assessing causality and testing clear hypotheses to measure the effect of specific actions in conservation programs.

Published
2021

7. NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Author

André Monteiro, Caroline Leuchtenberger, Juliana Monteiro de Almeida-Rocha, José Salatiel Rodrigues Pires, Isabella Oliveira-Bevan, Armando Muniz Calouro, Valquíria Cabral Araújo, María Beatriz Núñez, Donald P. Eaton, Tatiane Campos Trigo, Raquel Lopes Sinigaglia Caribé Grando, Lucas Gonçalves da Silva, Rayanne Gama Matos, Melissa Sanches Mongelli, Larissa Nascimento Barreto, Jorge José Cherem, Paulo Auricchio, Jader Marinho-Filho, Lais Camila Dahmer, Erick Sekiama Rocha, Michel Barros Faria, Leonardo Marques Costa, Claudio Leite Novaes, Fernanda Cristina de Barros, Omolabake Alhambra Silva Arimoro, Ana Paula Potrich, Walfrido Moraes Tomas, Marilia Teresinha Hartmann, Luciana Zago da Silva, Bianca Ingberman, Maíra Benchimol, Ana Maria de Oliveira Paschoal, Fernanda Cavalcanti de Azevedo, Milene Alves-Eigenheer, Jeffrey J. Thompson, Marina Xavier da Silva, Adriele Aparecida Pereira, Beatriz da Silva de Souza Francisco, Michel Schutte, José Clemensou dos Reis Júnior, José de Sousa e Silva Júnior, Ana Cristina Tomazzoni, Milton Cezar Ribeiro, Carolline Zatta Fieker, Shery Duque Pinheiro, Mario Haberfeld, Fabiana Lopes Rocha, Thiago Philipe de Camargo e Timo, Fredy Ramírez Pinto, André Pinassi Antunes, Kevin M. Flesher, Bruno Rodrigo de Albuquerque França, Enrique González, Ricardo Bassini-Silva, Analice Maria Calaça, Patrício Adriano da Rocha, Maximiliano Víctor Pardo, Anamélia de Souza Jesus, Howard Quigley, Ana Paula Nascimento Gomes, Pedro Cordeiro-Estrela, Joana Zorzal Nodari, Cristiano Trapé Trinca, José Hernán Sarasola, Rodrigo Raúl León Pérez, Bruna Silva Santos, Cecília Licarião Luna, Carlos Hass, Elmary da Costa Fraga, Bruno Busnello Kubiak, Samuel Astete, Alexandra Cravino Mol, Alberto Yanosky, Noé U. de la Sancha, Calebe Pereira Mendes, Maurício B. Vecchi, Thiago Ferreira Rodrigues, Camila de Fátima Priante, Maria Emilia Huerta, J. Antonio de la Torre, Matheus Rocha Jorge Corrêa, Carlos Eduardo Verona, Milton José de Paula, Fernando Gonçalves, Ana María Herrera Victoria, Thiago Cavalcante, Eduardo Delgado Britez Rigacci, Viviane Maria Guedes Layme, Francisco Grotta-Neto, Lucas Pacciullio Gaspar, Marcela Guimarães Moreira Lima, Jéssica Abonizio Gouvea, Carlos De Angelo, Fabíola Keesen Ferreira, Juan Ruiz-Esparza, Arthur Francisco Araújo Fernandes, Lucas Lacerda Toth Quintilham, Hiago Ermenegildo, Nivaldo Peroni, Maria João Ramos Pereira, Bruna da Silva Andrade, Juan Pablo Arrabal, Juan F. Charre-Medellín, Geraldo Wilson Fernandes, Daiana Jeronimo Polli, Natália Mundim Tôrres, Samara Arsego Guaragni, Hipólito Ferreira Paulino Neto, Robert Buitenwerf, Rayssa Faria Pedroso, Flávio Kulaif Ubaid, Fernando Pedroni, Allison L. Devlin, Lorena Anne Nascimento, Marcelo Passamani, Mark Bowler, Michael P. Gilmore, Guilherme Zamarian Rezende, João Carlos Zecchini Gebin, Daiane Buscariol, Frederico Gemesio Lemos, Matthew E. Gompper, Paulo de Tarso Zuquim Antas, Rômulo Romeu Nóbrega Alves, Roberto Junior Tomasi, Pablo Villalva, Adriana Bocchiglieri, Rafael Bessa, Marcos de Souza Lima Figueiredo, Lucia Nathaly Stefany Rojas, Darci Moraes Barros-Battesti, Otávio Santi Ribeiro, Paulo Marinho, Francisco Palomares, Camila Cantagallo Devids, Carla Cristina Gestich, Magnus Machado Severo, Fernando de Castro Jacinavicius, Patrícia Kerches Rogeri, Rodrigo Medina Fróes, Fernando Anaguano-Yancha, Marcela Figuerêdo Duarte Moraes, Erick Francisco Aguiar, Átilla Colombo Ferreguetti, Margareth Lumy Sekiama, Mariana Sampaio Xavier, Giselle Bastos Alves, Vinícius Santana Orsini, Gastón Andrés Fernandez Giné, Pietro de Oliveira Scarascia, Leandro Silveira, Juan M. Campos Krauer, Matheus Gonçalves dos Reis, Robert B. Wallace, Fernanda do Passo Ramalho, Lucas Rodrigo Rezende, Flávio Eduardo Vilas Boas, Martín Alejandro Montes, Vinicius A. G. Bastazini, Natalia Mariana Denkiewicz, Fabio Mello Patiu, Galo Zapata-Ríos, Cristiane Martin, Daniel da Silva Ferraz, Ana Elisa de Faria Bacellar, Leonor Valenzuela, Laís Lautenschlager, María Eugenia Iezzi, Geruza Leal Melo, Andrés J. Novaro, Andrea Siqueira Carvalho, Pierre-Cyril Renaud, Ana Priscila Medeiros Olímpio, Renata Alonso Miotto, Alexine Keuroghlian, Anderson Claudino Rolim, Márcio Leite de Oliveira, Mariana M. Vale, Elisabete Rechenberg, Leonardo Henrique da Silva, Maron Galliez, Sávio Augusto de Souza Machado, Martin Buschiazzo, Mateus Melo-Dias, Priscilla de Paula Andrade Cobra, Pamella Gusmão de Goés Brennand, Cristiana Simão Seixas, Diana Friedeberg, Leonardo Sartorello, Paula Cruz, Leandro Santana Moreira, Carlos Frederico Duarte Rocha, Alex Augusto Abreu Bovo, Noeli Zanella, Javier de la Maza, Roberta Montanheiro Paolino, Marina Lima da Silva, Pedro Sarmento, Andrezza Bellotto Nobre, Laura Villalba, Maurício Eduardo Graipel, Paulina Arroyo-Gerala, George V. N. Powell, Rogério Cunha de Paula, Sebastián Andrés Costa, João Paulo Gava Just, Cuauhtémoc Chávez, Daniel H. Thornton, Jonas Sponchiado, Jorge Reppold Marinho, Elildo A.R. Carvalho, Leandro de Oliveira Marques, Rony García-Anleu, Keila Macfadem Juarez, Rafael Reyna-Hurtado, Flávia P. Tirelli, Maria Laura Gomez Vinassa, Jens-Christian Svenning, Frederico Gustavo Rodrigues França, Luiza Neves Guimarães, Maria Augusta Andrade da Silva, Miriam Lucia Lages Perilli, Stefani Gabrieli Age, Clinton N. Jenkins, Joseph E. Hawes, Letícia Benavalli, Akyllam Zoppi Medeiro, André Faria Mendonça, Jose Roberto de Matos, Juliane Pereira-Ribeiro, José Maurício Barbanti Duarte, Maria del Carmen Fleytas Jover, Alberto González-Gallina, Felipe Martello, Eduardo Marques Santos, Marcelo Cervini, Adriano Garcia Chiarello, Erika Castro, Sérgio Lucena Mendes, Wesley Dáttilo, Nilton C. Cáceres, Rodrigo Affonso de Albuquerque Nóbrega, Vlamir José Rocha, Nelson Henrique de Almeida Curi, Javier Hinojosa, Fernando R. Tortato, Rayssa Mainette Nantes Durães, Douglas de Matos Dias, Mauricio Osvaldo Moura, Juliano André Bogoni, Gindomar Gomes Santana, Daniel Galiano, Silvio Junior Napiwoski, Fabiane de Aguiar Pereira, Roberto Fusco-Costa, Samile Seber, Valeria C. Onofrio, Alejandro Jesús de la Cruz, Wellington Hannibal, Maria Brunini Siviero, Henrique Rajão, Nathália Fernandes Canassa, Natalie Olifiers, José Carlos Chaves dos Santos, Eloisa Neves Mendonça, Felipe Pessoa da Silva, Gabriela Heliodoro, Claudia Paola Zárate-Castañeda, Karl Didier, Mariana Bueno Landis, Igor Kintopp Ribeiro, Denise Alemar Gaspar, Marcos Adriano Tortato, Larissa Fornitano, Gabriela Teixeira Duarte, Gabriel Selbach Hofmann, Ana Cristyna Reis Lacerda, Emiliano Guijosa-Guadarrama, Saulo M. Silvestre, Helena Godoy Bergallo, Jardel Brandão Seibert, Sebastián Albanesi, Ariane Teixeira Bertoldi, Juan Andrés Martínez Lanfranco, Jairo Pérez-Torres, José Otávio Venancio, Edeltrudes Maria Valadares Calaça Camara, Fabiano Rodrigues de Melo, Tiberio Cesar Monterrubio, Beatriz de Mello Beisiegel, Eduardo Roberto Alexandrino, Luiz Henrique Medeiros Borges, Raone Beltrão-Mendes, Adriani Hass, João Paulo Villani, Fernando Henrique Puertas, Sara Álvarez Solas, Maria Cristina Peñuela Mora, Andre Monnerat Lanna, Sandra Maria Hartz, Hugo del Castillo, Sônia A. Talamoni, Flávia G. Chaves, Anah Tereza de Almeida Jácomo, Anderson Pagoto, Bruno Leles, Yaribeth Bravata de la Cruz, Brenda Pereira-Silva, Victor Hugo da Silva Iwakami, Juliani Bruna Zanoni, Maísa Ziviani Alves Martins, Claudia Zukeran Kanda, Catalina Sánchez-Lalinde, Marcelo Hideki Yamane, Laura Martins Magalhães, Ailin Gatica, Edson de Souza Lima, Cecilia Cronemberger, Vanessa Tavares Kanaan, Fernando César Gonçalves Bonfim, Italo Mourthe, Taiguã Corrêa Pereira, Igor Pfeifer Coelho, André Chein Alonso, Ludimila Juliele Carvalho-Leite, Felipe Pedrosa, Sean Keuroghlian-Eaton, Paulo Afonso Hartmann, Marcel José Franco Penteado, Pedro Volkmer de Castilho, Henrique Villas Boas Concone, Sérgio Luiz Althoff, Marina Rivero, Andressa Barbara Scabin, Arystene Nicodemo Ferreira, Júlia Beduschi, Marina Zanin, Juan Carlos Rudolf, Jociel Ferreira Costa, Viviana B. Rojas Bonzi, Cauanne Iglesias Campos Machado, Rhayssa Terra de Faria, Ana Cecilia Ochoa, Marcelo Magioli, Renata Twardowsky Ramalho Bonikowski, Ananda de Barros Barban, Natasha Moraes de Albuquerque, Claudia Cristina Cinta, Camila Alvez Islas, Marianela Velilla, Eder Barbier, Jose Luis Cartes, Eduardo Carrano, Glauber Henrique Borges de Oliveira Souto, Carlos Leonardo Vieira, Kimberly Danielle Rodrigues de Morais, Leticia Prado Munhoes, Jana Rangel Silveira, Helio Secco, Fernanda Martins Hatano, Edgar Chávez-González, Marcelo da Silva, Claudia Guimarães Costa, Christine Steiner São Bernardo, Ubiratan Piovezan, Paula Ribeiro Prist, Victor Vale, Elvira D'Bastiani, Juan L. Peña-Mondragón, Micheli Ribeiro Luiz, Eduardo Eizirik, Ana Raíssa Cunha Costa, Rodrigo de Almeida Nobre, Heitor Miraglia Herrera, Maria Elisa de Freitas Morandi, Valeria Towns, Danielle de Oliveira Moreira, Robson Odeli Espíndola Hack, Maria Claudene Barros, Adriano Pereira Paglia, Marinêz Isaac Marques, Carlos César Durigan, Marcia Maria de Assis Jardim, Rodrigo Paulo da Cunha Araújo, Erika de la Peña-Cuéllar, Rafael Cerqueira Castro de Souza, Emiliano Esterci Ramalho, Carlos Henrique Salvador, Maria Emília de Avelar Fernandes, Marcus Vinícius Vieira, Laís Aline Grossel, Martha Lucia Ortiz-Moreno, Renata L. Muylaert, John Polisar, Sixto Fernández Ramirez, Rômulo Theodoro Costa, Fabiane Girardi, Julio Chacón Pacheco, Gabriel Lima Aguiar, Ronaldo Gonçalves Morato, Leonardo Siqueira Mendonça, Roberto Guilherme Trovati, Camila Moniz Freire Rodrigues, David Costa Braga, Nielson Pasqualotto, Evellyn Borges de Freitas, Edvandro Abreu Ribeiro, German Forero-Medina, Adauto de Souza Ribeiro, Tayana Mendonça da Silva Gondim, Vivian da Silva Braz, Mariana Guenther, Beatriz Azevedo Cezila, Diego J. Lizcano, Daniele Janina Moreno, Caryne Braga, Agnis Cristiane de Souza, Ednaldo Cândido Rocha, Maira Giuliana Quatrocchi, Rubén Cueva Loachamin, Ricardo Sampaio, Rafael Spilere Romagna, Larissa de Nazaré Barros Barbosa, Pedro Luna, Ramonna de Oliveira, Marcela Alvares Oliveira, Lívia Maria de Paula, Valeska Buchemi Oliveira, Rugieri Juárez, Marcella do Carmo Pônzio, Karl L. Schuchmann, Erich Fischer, Juliana Jordao, André Luis Botelho de Moura, Pedro M. Galetti, Luciano Martins Verdade, Bruno Augusto Torres Parahyba Campos, Newton Mota Gurgel-Filho, Luiz Henrique Lyra, Ana Kellen Nogueira Campelo, Kamila Marianne Contreras Palma, Fernanda Santos, Vanessa Lazaro Melo, Graziele Oliveira Batista, Camilla Angélica de Lima, Antonio M. Mangione, Nereyda Falconi, Camila Camara Pianca, Alessandra Bertassoni, Waldney Pereira Martins, Anderson Feijó, Santiago Espinosa, André Luís Luza, Lana Resende de Almeida, Bruna Bertagni de Camargo, Rogério Parentoni Martins, Rita de Cassia Bianchi, Julia Carolina Mata, Fabio Rohe, Marcos Silveira, Pedro Henrique de Faria Peres, Diego Carvalho Viana, Renata R. D. Chagas, Andiara Silos Moraes de Castro e Souza, Felipe Vélez-García, Felipe Bittioli Rodrigues Gomes, Alan Eriksson, José A. Rodríguez-Pulido, Maria Estela Viscarra Siñani, Davi Castro Tavares, João Pedro Souza-Alves, Raquel da Silva, Lucas Ramis Segura, Amadeo Sánchez, João M. D. Miranda, Natani Da Silva De Lima, Antonio Millas Silva Pinto, Wesley Rodrigues Silva, Jörn Ziegler, Lilian Catenacci, Mauro Galetti, Tainah Cruz Moreira, Cristiane Patricia Zaniratto, Danilo Augusto Farias, Anna Carolina Figueiredo de Albuquerque, Lilian Elaine Rampim, Caroline Charão Sartor, Maria Luisa S. P. Jorge, Alex Bager, Maria Lucia Lorini, Rodolfo Assis Magalhães, Rodrigo Lima Massara, Juliana Silveira dos Santos, Vagner Cavarzere, Cíntia M. Lopes, Greici Maia Behling, Fernanda Delborgo Abra, Fabricio Diaz-Santos, Helena Alves do Prado, Daniela Lamattina, Rubia Santana Andrade, Kathrin Burs, Ramon Lima Silva, Meyline de Oliveira Souza Almeida, José Fernando Moreira Ramírez, Maria Cristina Ferreira do Rosario, Franco L. Souza, Maria Santina de Castro Morini, Ana Carla Medeiros Morato de Aquino, Mauricio Neves Godoi, Marcelo Alejandro Villegas, Paulo Inácio Prado, Mariano Maudet Bergel, Gustavo Alves da Costa Toledo, Ângela Camila Deffaci, Diogo Loretto, Diego Afonso Silva, Henrique Llacer Roig, Richard Hatakeyama, Mario S. Di Bitetti, Carmen Elena Barragán Ruiz, Alexandra M. R. Bezerra, Flávio Henrique Guimarães Rodrigues, Fernanda Michalski, Jasmine de Resende Assis, Jose Milton Longo, Paula Sanches Martin, Murillo Prado da Silva, Pablo Rodrigues Gonçalves, Daiane Cristina Carreira, Andrea Dechner, Carolina Carvalho Cheida, Gabrielle Beca, Hugo Fernandes-Ferreira, Ricardo Araújo Pires, Alfonso Zúñiga Hartley, Hugo Cabral, Luiz Flamarion B. Oliveira, Renato R. Hilário, Samanta Uchôa Bordallo, Fernando C. Passos, Herbert Duarte, Fabio de Oliveira Roque, Fabio Oliveira do Nascimento, Fábio Soares, Alexandre Reis Percequillo, Emiliana Isasi-Catalá, Manoel Rodrigues, Clarissa Alves da Rosa, Marcelo Augusto dos Santos Junior, José Eduardo Mantovani, Andressa Gatti, Saulo Ramos Lima, Laury Cullen, Erica Naomi Saito, Carlos A. Peres, Caroline Espinosa, Guido Marcos Ayala Crespo, Leticia Coutinho Sangy Dias, Jean Paul Metzger, Paulo H. S. A. Camargo, Ana Carolina Srbek-Araujo, Christine Del Vechio, Olivier Pays, Júlia Emi de Faria Oshima, Ludmila Hufnagel, Diego Astúa, Renan Lieto Alves Ribeiro, Katia Maria Paschoaletto Micchi de Barros Ferraz, Mircea G. Hidalgo-Mihart, Octavio Monroy-Vilchis, Lucas Neves Perillo, Cindy M. Hurtado, Cristina Jaques da Cunha, Rony Peterson Santos Almeida, Jasmim Felipe Oliveira, Leonardo dos Santos Aguiar, Antonio Rossano Mendes Pontes, Nêmora Pauletti Prestes, Felipe Moreli Fantacini, Sérgio Bazilio, Isabel Melo, Glenda Jéssica Villarroel, Rafael Hoogesteijn, Lilian Bonjorne, Luis Renato Rezende Bernardo, Maurício Quoos Konzen, Juan Ignacio Zanón-Martínez, Paloma Marques Santos, Whaldener Endo, Diego Varela, Benoit de Thoisy, Karla Chávez-Congrains, Yuri Geraldo Gomes Ribeiro, Jaime Xavier Palacios Perez, Mariana Silva Tavares, Fernando M. Contreras-Moreno, Luciano Carramaschi de Alagão Querido, Francesca Belem Lopes Palmeira, Bianca dos Santos Neves, José Luis Passos Cordeiro, Erik Daniel Martínez Nambo, Mariane da Cruz Kaizer, João Luiz Rossi Junior, Mauricio M. Núñez-Regueiro, José Oliveira Dantas, Cristina Fabiola López-Fuerte, Giordano Ciocheti, Marina Salles Munerato, Eleonore Z. F. Setz, Júlia Ilha, Karen Giselle Rodriguez Castro, Mozart C. Freitas-Junior, André Luiz Ferreira da Silva, Eduardo Martins Venticinque, Vilmar Picinatto Filho, Francys E. da Veiga da Costa, Renata Valls Pagotto, Cyntia Cavalcante Santos, Carla Denise Tedesco, Julia Camara Assis, Raphaella Coutinho, Luciana Souza Araújo, João Gabriel Ribeiro Giovanelli, Jesus R.D. Souza, Mariana B. Nagy-Reis, Joedison Rocha, Luiz Gustavo Rodrigues Oliveira Santos, André Valle Nunes, Andiara Paula Hermann, Samia E. Carrillo-Percastegui, Lucy Perera-Romero, Ingridi Camboim Franceschi, Filipe Martins Santos, Itiberê P. Bernardi, Érica Hasui, Joyce Gonçalves Santos, Paula Modenesi Ferreira, Thamíris Christina Karlovic, María Celina Carrizo, Marília A. S. Barros, Almir de Paula, Carlos Benhur Kasper, Guilherme Mourão, Mathias W. Tobler, Camilo Ribeiro de Lima, Paulo Wesley Martins, Jamile de Moura Bubadué, João Paulo Pandini Favoretti, William Bercê, Leonardo de Paula Gomes, Leonardo C. Oliveira, Diogo Maia Gräbin, Gabrielle Ribeiro de Andrade, Rodrigo Bernardo, Thiago Bernardes Maccarini, Carlos Eduardo Fragoso, Rafaela Aparecida da Silva, Viviane Telles Rodrigues Gaboardi, Raony de Macêdo Alencar, Fernanda Guedes da Silva, Anelise Montanarin, Vinicius Rodrigues Tonetti, Bruno H. Saranholi, Larissa L. Bailey, Martin Roberto Del Valle Alvarez, Juliana Bonanomi, Paula Akkawi, Vinicius Alberici, Grasiela Edith de Oliveira Porfírio, Adriano Canteri, Jimmy Pincheira-Ulbrich, Alan N. Costa, Fabio Gabriel Díaz-Santos, Douglas Machado da Silva, Ezequiel Pedó, Lucía Martínez Retta, Alvaro García-Olaechea, Ricardo Sartorello, Paulo Henrique Peira Ruffino, Alexandre Martins Costa Lopes, Crizanto Brito De-Carvalho, Eliana César Laranjeira Duarte Rocha, Karen B. Strier, Raylenne da Silva Araujo, Jaime Martinez, Augusto Lisboa Martins Rosa, Eduardo Nakano-Oliveira, Rodrigo Silva Pinto Jorge, Hudson de Macedo Lemos, Aureo Banhos, Pryscilla Moura Lombardi, Alexandre Vogliotti, Rafael Souza Cruz Alves, Mayara Guimarães Beltrão, Carlos Fonseca, Rogério Grassetto Teixeira da Cunha, Nagy-Reis M., Oshima J. E. de F., Zukeran Kanda C., Palmeira F. B. L., Melo F. R. de, Morato R. G., Bonjorne L., Magioli M., Leuchtenberger C., Rohe F., Lemos F. G., and Cravino Mol María Alexandra, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales.

Subjects
0106 biological sciences, carnivores, Ecological health, predator, canidae, Roadkill, Species distribution, Carnivora, Mustelidae, mammal, occurrence, 010603 evolutionary biology, 01 natural sciences, data paper, Landscape Architecture and Spatial Planning, Animals, Humans, Carnivore, Ecology, Evolution, Behavior and Systematics, Ecosystem, Trophic level, Canidae, biology, Ecology, 010604 marine biology & hydrobiology, Landschapsarchitectuur en Ruimtelijke Planning, conservation, felidae, biology.organism_classification, Geography, Habitat, neotropical region, species distribution, Ursidae, Count data
Abstract

Incluye contenido parcial de los autores Abstract.Mammalian carnivores are considered a key group in maintaining ecologicalhealth and can indicate potential ecological integrity in landscapes where they occur. Carni-vores also hold high conservation value and their habitat requirements can guide managementand conservation plans. The order Carnivora has 84 species from 8 families in the Neotropicalregion: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; andUrsidae. Herein, we include published and unpublished data on native terrestrial Neotropicalcarnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTRO-PICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data wereobtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organi-zations, and private consultants. Data were collected using several methods including cameratrapping, museum collections, roadkill, line transect, and opportunistic records. Literature(peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated inthis compilation. Most of the data set consists of detection data entries (n=79,343; 79.7%) butalso includes non-detection data (n=20,262; 20.3%). Of those, 43.3% also include count data(n=43,151). The information available in NEOTROPICAL CARNIVORES will contribute tomacroecological, ecological, and conservation questions in multiple spatio-temporal perspec-tives. As carnivores play key roles in trophic interactions, a better understanding of their distri-bution and habitat requirements are essential to establish conservation management plans andsafeguard the future ecological health of Neotropical ecosystems. Our data paper, combinedwith other large-scale data sets, has great potential to clarify species distribution and relatedecological processes within the Neotropics. There are no copyright restrictions and no restric-tion for using data from this data paper, as long as the data paper is cited as the source of theinformation used. We also request that users inform us of how they intend to use the data.

Published
2020

8. The dynamics of tent-roosts in the palmSabal mauritiiformisand their use by bats in a montane dry forest

Author

Gustavo H. Kattan, Leonor Valenzuela, Marlyn Zuluaga-Egas, Vladimir Rojas-Díaz, and Ana María Herrera-Victoria

Subjects
0106 biological sciences, Water transport, biology, 010604 marine biology & hydrobiology, Dry forest, Forestry, Arecaceae, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, Montane ecology, Sabal mauritiiformis, Palm, Ecology, Evolution, Behavior and Systematics
Published
2018

9. Biodiversidad 2016. Estado y tendencias de la biodiversidad continental de Colombia

Author

Jorge Velásquez-Tibatá, Germán Corzo, Catherine Agudelo, Carlos Aya, Yissel Rivera, Gustavo Ramón Suárez, Johanna Martínez, Carolina Soto-Vargas, Hernando García Martínez, Andrés Avella, Leonor Valenzuela, Melissa Abud, Sebastián Saldarriaga, Lina M. Mesa S., Germán A. Forero-Medina, Susy Echeverría-Londoño, Rebeca Franke, Luis López, Adriana Sinning, Elisa Btavo, Hugo López, Lorena Tique, Estefanía Salazar, Luis Guillermo Castro, Angélica Benítez, Gina Rodríguez, Elsa Mazabel, René López, Juliana Montoya, Sylvia Schlesinger, Andy Purvis, Juan Duque, Wilson Ramírez, Ana M. Aldana, Daniel Rodriguez, Diego Córdoba, Mauricio Aguilar-Garavito, Martha Isabel Vallejo, Fernando Fernández, Gabriela Bonilla, Alejandra Franco-Morales, Diego Higuera, David Valencia-Mazo, Rubén Jurado, Robinson Galindo, Olga Nieto, Diego González, José F. González-Maya, Beatriz Salgado-Negret, Julián Aguirre, Carolina Castellanos-Castro, José Leonardo Bocanegra, Diana López, Camila Pizano, Selene Torres, Miguel Rodríguez, Roy González-M., María Cecilia Londoño, Ángela Alviz, Maribel Vásquez-Valderrama, Adriana Barbosa, Alexander Rincón Ruíz, Sebastián Martínez Botero, Nicolás Urbina, Vivian P. Páez, Carlos Castaño-Uribe, Mary Lee Berdugo, Esteban Payán Garrido, Juan Carlos López, Diana Stasiukynas, Alba Marina Torres, Sebastián García-G., Valentina Hernández, Elcy Corrales, Natalia Valderrama Rincón, Daisy Gómez, Stephanie Valderrama, Mauricio Vela, John Nieto, Augusto Repizzo, Lina M. Estupiñán-Suárez, Andrés Arias-Alzate, Natalia Norden, Cristian Castro, Marcela Carmona, Paola J. Isaacs-Cubides, Carolina Castro-Moreno, Cesar Rojano, Diego Zárate-Charry, Camilo Fernández, Angélica Diaz-Pulido, Azucena Cabrera, Alejandra Bonilla, Nicolai Ciontescu, Juan David Amaya-Espinel, Pablo R. Stevenson, Luz Marina Silva Arias, Lizeth Quintana, Sergio Solari, Henry Garay, Carlos Enrique Sarmiento Pinzón, Paola Morales, Viviana Guzmán, Carolina Sofrony, Úrsula Jaramillo Villa, Lain E. Pardo, Esteban Álvarez, Carlos Valderrama, José Reinaldo Aguilar-Cano, Karen Pérez, Diana Lara, Alvaro Duque, Cristina López-Gallego, Juan Phillips, Carlos A. Lasso, María E. Rinaudo, Brian C. Bock, Esperanza Pulido, Olga Lucía Hernández-Manrique, Sandra Medina, Álvaro Idárraga, Orlando Rangel, Juan Mauricio Posada-Herrera, Olga León, Laura Toro, César Rojas, Andrea Galeano, Gina Olarte, Marcela Portocarrero-Aya, S. Monsalve, Ana María Hernández, Humberto Calero, Germán Galvis, Mónica A. Morales-Betancourt, Natalia Peña, Nicolás Castaño, Edwin Fabián Tamayo Peña, Adriana Reyes, Ivan Gonzalez, Claudia Garnica, Juan F. Tobón, David Marín-C., John Sánchez, Dora Leonor Peña, Juan Carlos Rey-Velasco, and Laura Cano

Abstract

Esta tercera entrega del reporte anual de la biodiversidad en Colombia profundiza en la linea editorial iniciada el ano 2014 mediante nuevas propuestas analiticas y graficas, con la intencion de garantizar que la informacion llegue a todos los publicos y pueda ser discutida de manera amena sin sacrificio de calidad. La apuesta comunicativa sigue siendo central en el proyecto institucional y los nuevos lenguajes con los que estamos aprendiendo a conversar con la sociedad y las instituciones son un experimento que esperamos sea cada vez mas satisfactorio: ya estamos construyendo la version 2017 con el apoyo de las nuevas tecnologias digitales de manera que la potencia de la conexion vital colombiana se exprese en toda su capacidad. Por los contenidos es evidente que aun distamos mucho de tener una capacidad de seguimiento sistematico para la mayoria de temas relativos a la gestion de la biodiversidad y los servicios ecosistemicos, la unica manera de evaluar si las medidas de politica y las inversiones que realiza la sociedad estan teniendo los efectos deseados. De hecho, parte de las limitaciones reconocidas por robustamente los cambios positivos o negativos que afectan los diferentes niveles de organizacion de la vida planetaria, por lo cual las mismas metas de Aichi, nuestra carta de navegacion global, estan pendientes de verificacion. Un proposito adicional de este proceso es la invitacion a todos los colombianos para contribuir con la construccion y alimentacion de los indicadores basicos de seguimiento a la gestion, ya que es imposible identificar las tendencias de largo plazo en que estan inmersas la flora y fauna colombianas sin el apoyo de las instituciones, los investigadores y los ciudadanos: en el pais de la megadiversidad, el reto es inmenso. Por este motivo, este reporte ira abriendo sus paginas a expertos, incluso indigenas o de comunidades locales, para que presenten de manera sistematica y documentada sus perspectivas del cambio ambiental y sus efectos en la biodiversidad, con el animo de promover el compromiso de todos en su gestion. La unica manera de superar el riesgo de extincion es mediante un activo proceso de aprendizajes sociales que haga que todos los sectores asuman una parte de la compleja responsabilidad que significa proteger todas las formas de vida del pais, una decima parte mal contada de las planetarias. Agradezco a las decenas de personas que contribuyeron con este reporte, a quienes nos han apoyado en todas las etapas de produccion y a sus lectores y usuarios, quienes son en ultimo termino los jueces de su utilidad.

Published
2017

10. Fototrampeo

Author

Angélica Díaz, Melissa Abud, Ángela Alviz, Andrés Arias, Carlos Aya, Angélica Benítez, Alejandra Bonilla, Sebastián Botero, Elisa Bravo, Humberto Calero, Marcela Acevedo, Juan S. Duque, Camilo Fernández, Germán Forero-Medina, Andrea Galeano, Sebastián García, Daisy Gómez, José F. González-Maya, Valentina Hernández, Azucena Cabrera, Hugo López, Juan P. López, David Marín, Elsa Mazabel, Santiago Monsalve, Gina Olarte, Lain E. Pardo, Esteban Payán-Garrido, Karen Pérez, Diosa L. Quintana, Adriana Reyes, Miguel Rodríguez, Daniel Rodríguez, César Rojano, Estefanía Salazar, Sergio Solari, Carolina Soto, Diana Stasiukynas, Gustavo Suárez, Carlos Valderrama, Stephanie Valderrama, David Valencia-Mazo, Leonor Valenzuela, Mauricio Vela, and Diego Zárrate-Charry

Published
2017

11. Wetlands are keystone habitats for jaguars in an intercontinental biodiversity hotspot

Author

Reed F. Noss, Joe J. Figel, Sebastian Botero-Cañola, German Forero-Medina, Leonor Valenzuela, and Juan David Sánchez-Londoño

Subjects
Male, 0106 biological sciences, Topography, Jaguar, Video Recording, Biodiversity, Marine and Aquatic Sciences, Forests, 01 natural sciences, Geographical locations, Flooding, Oil Palm, Apex predator, Mammals, Multidisciplinary, Habitat fragmentation, Ecology, biology, Eukaryota, Panthera onca, Plants, Terrestrial Environments, Habitats, Geography, Vertebrates, Medicine, Female, Research Article, Freshwater Environments, Valleys, Conservation of Natural Resources, Occupancy, Science, Colombia, 010603 evolutionary biology, Ecosystems, Jaguars, biology.animal, Animals, Panthera, Ecosystem, Population Density, Landforms, 010604 marine biology & hydrobiology, Ecology and Environmental Sciences, Organisms, Biology and Life Sciences, Aquatic Environments, Geomorphology, South America, Biodiversity hotspot, Wetlands, Amniotes, Cats, Earth Sciences, Camera trap, Hydrology, People and places
Abstract

Agricultural development was the major contributor to South America's designation as the continent with the highest rates of forest loss from 2000-2012. As the apex predator in the Neotropics, jaguars (Panthera onca) are dependent on forest cover but the species' response to habitat fragmentation in heterogeneous agricultural landscapes has not been a subject of extensive research. We used occupancy as a measure of jaguar habitat use in Colombia's middle Magdalena River valley which, as part of the intercontinental Tumbes-Chocó-Magdalena biodiversity hotspot, is exceedingly fragmented by expanding cattle pastures and oil palm plantations. We used single-season occupancy models to analyze 9 months of data (2015-2016) from 70 camera trap sites. Given the middle Magdalena's status as a "jaguar corridor" and our possible violation of the occupancy models' demographic closure assumption, we interpreted our results as "probability of habitat use (Ψ)" by jaguars. We measured the associations between jaguar presence and coverage of forest, oil palm, and wetlands in radii buffers of 1, 3, and 5 km around each camera trap. Our camera traps recorded 77 jaguar detections at 25 of the camera trap sites (36%) during 15,305 trap nights. The probability of detecting jaguars, given their presence at a site, was 0.28 (0.03 SE). In the top-ranked model, jaguar habitat use was positively influenced by wetland coverage (β = 7.16, 3.20 SE) and negatively influenced by cattle pastures (β = -1.40, 0.63 SE), both in the 3 km buffers. We conclude that wetlands may serve as keystone habitats for jaguars in landscapes fragmented by cattle ranches and oil palm plantations. Greater focus on wetland preservation could facilitate jaguar persistence in one of the most important yet vulnerable areas of their distribution.

Published
2019

12. Phenology, abundance and consumers of figs (Ficus spp.) in a tropical cloud forest: evaluation of a potential keystone resource

Author

Leonor Valenzuela and Gustavo H. Kattan

Subjects
Cloud forest, Biomass (ecology), Frugivore, biology, Ecology, Abundance (ecology), Phenology, Tropics, Ficus, Mammal, biology.organism_classification, Ecology, Evolution, Behavior and Systematics
Abstract

Fig trees (Ficus spp) produce fruit year-round and figs are consumed by a large proportion of frugivores throughout the tropics. Figs are potential keystone resources that sustain frugivore communities during periods of scarcity, but studies have produced contradictory results. Over 1 y we monitored the phenology of 206 trees of five Ficus species in a Colombian cloud forest, to test whether figs produced fruit during periods of low overall fruit availability. We also measured fig tree densities in 18 0.5-ha plots and made 190 h of observations at 24 trees of three species to determine whether figs were abundant and consumed by a large proportion of the local frugivores. The five species produced fruit year-round but fig availability varied monthly by orders of magnitude. Fig trees reached comparatively high densities of 1–5 trees ha−1 and were consumed by 36 bird species (60% of the local frugivore assemblage) and three mammal species. However, there was no season of fruit scarcity and figs represented on average 1.5% of the monthly fruit biomass. Figs in this Andean forest are part of a broad array of fruiting species and at least during our study did not seem to constitute a keystone resource.

Published
2013

13. Algunas reflexiones sobre fragmentación y sus retos para la investigación

Author

Leonor Valenzuela, Daniel Osorio Domínguez, and Andrés Quintero Ángel

Subjects
Habitat destruction, Latin Americans, Geography, Ecology, Applied Mathematics, Biodiversity, Fragmentation (computing), Ecosystem
Abstract

Fragmentation and habitat loss are some of the major threats to biodiversity, altered ecological processes important for the regulation of ecosystems that may eventually be associated to processes of species extinction. The response of the species to these phenomena occurs at different scales of space-time, making the study of fragmentation and its effect on species in a challenge and an urgent need for the conservation. In this sense this article examines the fragmentation impacts on the ecological interactions, organizational levels and at the same time, we evaluate in a general way the state of the research on the topic in Latin America.

Published
2012

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