3.9 Article

The Words Population and Community Have Outlived their Usefulness in Ecological Publications

Journal

NATUREZA & CONSERVACAO
Volume 11, Issue 1, Pages 1-6

Publisher

ASSOC BRASILEIRA CIENCIA ECOLOGICA E CONSERVACAO
DOI: 10.4322/natcon.2013.007

Keywords

Conservation; Ecology; Community; Population; Communication

Funding

  1. National Institute for Science, Technology and Innovation for Amazonian Biodiversity (INCT-CENBAM)
  2. Brazilian Program for Biodiversity Research (PPBio)
  3. CNPq
  4. PELD program of the Ministry of Science
  5. Technology and Innovation (MCT)
  6. PRO CAD
  7. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) of the Ministry of Education (MEC)

Ask authors/readers for more resources

The concepts of population and community are so fundamental to the identity of ecological science that their use is almost never questioned, even though many authors have noted that neither has a generally accepted definition. Authors continue to invent new definitions without noting that their definitions will exclude most other ecologists. While there have been many publications questioning the utility of particular lines of ecological enquiry, these have had little effect on ecological practice, and recent ecological papers have few fundamental differences from those published half a century ago, despite the huge advances in analytical techniques. Complaining about others' definitions or suggesting that others should use your definition does not qualify as a method. Here I propose a simple method to increase the utility of ecological publications for conservation that would go far towards solving the problems that have been identified by many authors - stop using the words population and community The words population and community, as used by ecologists and conservationists, are at best redundant, and almost always retard understanding by scientists and decision makers. The simple expedient of reviewers and editors requesting that authors do not use these words would make authors have to make their methods and assumptions explicit, and the conservation science more useful.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

3.9
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Biodiversity Conservation

Neutral processes and reduced dispersal across Amazonian rivers may explain how rivers maintain species diversity after secondary contact

Sergio Santorelli Junior, William E. Magnusson, Claudia Pereira de Deus, Timothy H. Keitt

Summary: Amazonian rivers act as partial barriers to species dispersal and influence the distribution limits of similar species. Through simulation experiments, it was found that even if two competitively-identical species frequently cross rivers, the low probability of rare invaders outcompeting resident populations can maintain their allopatry for hundreds of generations. This process provides a plausible mechanism for the maintenance of Amazonian biodiversity and explains the spatial distribution limits caused by large rivers in the region.

PERSPECTIVES IN ECOLOGY AND CONSERVATION (2022)

Article Ecology

AMAZONIA CAMTRAP: A data set of mammal, bird, and reptile species recorded with camera traps in the Amazon forest

Ana Carolina Antunes, Anelise Montanarin, Diogo Maia Grabin, Erison Carlos dos Santos Monteiro, Fernando Ferreira de Pinho, Guilherme Costa Alvarenga, Jorge Ahumada, Robert B. Wallace, Emiliano Esterci Ramalho, Adrian Paul Ashton Barnett, Alex Bager, Alexandre Martins Costa Lopes, Alexine Keuroghlian, Aline Giroux, Ana Maria Herrera, Ana Paula de Almeida Correa, Ana Yoko Meiga, Anah Tereza de Almeida Jacomo, Ananda de Barros Barban, Andre Antunes, Andre Giovanni de Almeida Coelho, Andre Restel Camilo, Andre Valle Nunes, Andrea Cristina dos Santos Maroclo Gomes, Antonio Carlos da Silva Zanzini, Arlison Bezerra Castro, Arnaud Leonard Jean Desbiez, Axa Figueiredo, Benoit de Thoisy, Benoit Gauzens, Brunno Tolentino Oliveira, Camilla Angelica de Lima, Carlos Augusto Peres, Carlos Cesar Durigan, Carlos Rodrigo Brocardo, Clarissa Alves da Rosa, Claudia Zarate-Castaneda, Claudio M. Monteza-Moreno, Cleide Carnicer, Cristiano Trape Trinca, Daiana Jeronimo Polli, Daniel da Silva Ferraz, Daniel F. Lane, Daniel Gomes da Rocha, Daniele Cristina Barcelos, David Auz, Dian Carlos Pinheiro Rosa, Diego Afonso Silva, Divino Vicente Silverio, Donald P. Eaton, Eduardo Nakano-Oliveira, Eduardo Venticinque, Elildo Carvalho Junior, Eloisa Neves Mendonca, Emerson Monteiro Vieira, Emiliana Isasi-Catala, Erich Fischer, Erika Paula Castro, Erison Gomes Oliveira, Fabiano Rodrigues de Melo, Fabio de Lima Muniz, Fabio Rohe, Fabricio Beggiato Baccaro, Fernanda Michalski, Fernanda Pozzan Paim, Fernanda Santos, Fernando Anaguano, Francesca Belem Lopes Palmeira, Francielly da Silva Reis, Francisca Helena Aguiar-Silva, Gabriel de Avila Batista, Galo Zapata-Rios, German Forero-Medina, Gilson De Souza Ferreira Neto, Giselle Bastos Alves, Guido Ayala, Gustavo Henrique Prado Pedersoli, Hani R. El Bizri, Helena Alves do Prado, Hugo Borghezan Mozerle, Hugo C. M. Costa, Ivan Junqueira Lima, Jaime Palacios, Jasmine de Resende Assis, Jean P. Boubli, Jean Paul Metzger, Jessica Vieira Teixeira, Joao Marcelo Deliberador Miranda, John Polisar, Julia Salvador, Karen Borges-Almeida, Karl Didier, Karla Dayane de Lima Pereira, Kelly Torralvo, Krisna Gajapersad, Leandro Silveira, Leandro Uceli Maioli, Leonardo Maracahipes-Santos, Leonor Valenzuela, Leticia Benavalli, Lydia Fletcher, Lucas Navarro Paolucci, Lucas Pereira Zanzini, Luciana Zago da Silva, Luiz Claudio Ribeiro Rodrigues, Maira Benchimol, Marcela Alvares Oliveira, Marcela Lima, Marcelia Basto da Silva, Marcelo Augusto dos Santos Junior, Maria Viscarra, Mario Cohn-Haft, Mark Ilan Abrahams, Maximiliano Auguto Benedetti, Miriam Marmontel, Myriam R. Hirt, Natalia Mundim Torres, Orlando Ferreira Cruz Junior, Patricia Alvarez-Loayza, Patrick Jansen, Paula Ribeiro Prist, Paulo Monteiro Brando, Phamela Bernardes Peronico, Rafael do Nascimento Leite, Rafael Magalhaes Rabelo, Rahel Sollmann, Raone Beltrao-Mendes, Raphael Augusto Foscarini Ferreira, Raphaella Coutinho, Regison da Costa Oliveira, Renata Ilha, Renato Richard Hilario, Ricardo Araujo Prudente Pires, Ricardo Sampaio, Roberto da Silva Moreira, Robinson Botero-Arias, Rodolfo Vasquez Martinez, Rodrigo Affonso de Albuquerque Nobrega, Rodrigo Ferreira Fadini, Ronaldo G. Morato, Ronaldo Leal Carneiro, Rony Peterson Santos Almeida, Rossano Marchetti Ramos, Roxana Schaub, Rubem Dornas, Ruben Cueva, Samir Rolim, Samuli Laurindo, Santiago Espinosa, Tais Nogueira Fernandes, Tania Margarete Sanaiotti, Thiago Henrique Gomide Alvim, Tiago Teixeira Dornas, Tony Enrique Noriega Pina, Victor Lery Caetano Andrade, Wagner Tadeu Vieira Santiago, William E. Magnusson, Zilca Campos, Milton Cezar Ribeiro

Summary: The Amazon forest is home to the highest biodiversity on Earth. However, information on the diversity of vertebrates in the Amazonian region is still lacking. In this study, camera traps were used to collect data on mammals, birds, and reptiles in different regions of the Amazon. The resulting dataset is the most comprehensive inventory of species ever compiled for the area, providing opportunities for ecological studies and evaluation of environmental impacts.

ECOLOGY (2022)

Article Ecology

Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

Diego F. Correa, Pablo R. Stevenson, Maria Natalia Umana, Luiz de Souza Coelho, Diogenes de Andrade Lima Filho, Rafael P. Salomao, Ieda Leao do Amaral, Florian Wittmann, Francisca Dionizia de Almeida Matos, Carolina Castilho, Oliver L. Phillips, Juan Ernesto Guevara, Marcelo de Jesus Veiga Carim, William E. Magnusson, Daniel Sabatier, Jean-Francois Molino, Mariana Victoria Irume, Maria Pires Martins, Jose Renan da Silva Guimaraes, Olaf S. Banki, Maria Teresa Fernandez Piedade, Nigel C. A. Pitman, Abel Monteagudo Mendoza, Jose Ferreira Ramos, Bruno Garcia Luize, Evlyn Marcia Moraes de Leao Novo, Percy Nunez Vargas, Thiago Sanna Freire Silva, Eduardo Martins Venticinque, Angelo Gilberto Manzatto, Neidiane Farias Costa Reis, John W. Terborgh, Katia Regina Casula, Euridice N. Honorio Coronado, Juan Carlos Montero, Jochen Schongart, Dairon Cardenas Lopez, Flavia R. C. Costa, Adriano Costa Quaresma, Charles Eugene Zartman, Timothy J. Killeen, Beatriz S. Marimon, Ben Hur Marimon-Junior, Rodolfo Vasquez, Bonifacio Mostacedo, Layon O. Demarchi, Ted R. Feldpausch, Rafael L. Assis, Christopher Baraloto, Julien Engel, Pascal Petronelli, Hernan Castellanos, Marcelo Brilhante de Medeiros, Marcelo Fragomeni Simon, Ana Andrade, Jose Luis Camargo, Susan G. W. Laurance, William F. Laurance, Lorena Maniguaje Rincon, Juliana Schietti, Thaiane R. Sousa, Emanuelle de Sousa Farias, Maria Aparecida Lopes, Jose Leonardo Lima Magalhaes, Henrique Eduardo Mendonca Nascimento, Helder Lima de Queiroz, Gerardo A. Aymard C, Roel Brienen, Juan David Cardenas Revilla, Ima Celia Guimaraes Vieira, Bruno Barcante Ladvocat Cintra, Yuri Oliveira Feitosa, Joost F. Duivenvoorden, Hugo F. Mogollon, Alejandro Araujo-Murakami, Leandro Valle Ferreira, Jose Rafael Lozada, James A. Comiskey, Jose Julio de Toledo, Gabriel Damasco, Nallarett Davila, Roosevelt Garcia-Villacorta, Aline Lopes, Alberto Vicentini, Freddie C. Draper, Nicolas Castano Arboleda, Fernando Cornejo Valverde, Alfonso Alonso, Francisco Dallmeier, Vitor H. F. Gomes, David Neill, Daniel P. P. de Aguiar, Luzmila Arroyo, Fernanda Antunes Carvalho, Fernanda Coelho de Souza, Dario Dantas do Amaral, Kenneth J. Feeley, Rogerio Gribel, Marcelo Petratti Pansonato, Jos Barlow, Erika Berenguer, Joice Ferreira, Paul V. A. Fine, Marcelino Carneiro Guedes, Eliana M. Jimenez, Juan Carlos Licona, Maria Cristina Penuela Mora, Boris Eduardo Villa Zegarra, Carlos Ceron, Emile Fonty, Terry W. Henkel, John Ethan Householder, Paul Maas, Marcos Silveira, Juliana Stropp, Raquel Thomas, Flavia Machado Durgante, Tim R. Baker, Doug Daly, Isau Huamantupa-Chuquimaco, William Milliken, Toby Pennington, Marcos Rios Paredes, Pardo Molina, Alfredo Fuentes, Bente Klitgaard, Jose Luis Marcelo Pena, Carlos A. Peres, Miles R. Silman, J. Sebastian Tello, Wegliane Campelo, Jerome Chave, Anthony Di Fiore, Renato Richard Hilario, Juan Fernando Phillips, Gonzalo Rivas-Torres, Tinde R. van Andel, Patricio von Hildebrand, Luciana de Oliveira Pereira, Edelcilio Marques Barbosa, Flavia Rodrigues Barbosa, Luiz Carlos de Matos Bonates, Rainiellen de Sa Carpanedo, Hilda Paulette Davila Doza, Ricardo Zarate Gomez, Therany Gonzales, George Pepe Gallardo Gonzales, Bruce Hoffman, Andre Braga Junqueira, Yadvinder Malhi, Ires Paula de Andrade Miranda, Linder Felipe Mozombite Pinto, Adriana Prieto, Domingos de Jesus Rodrigues, Agustin Rudas, Ademir R. Ruschel, Natalino Silva, Cesar I. A. Vela, Vincent Antoine Vos, Stanford Zent, Eglee L. Zent, Janaina Costa Noronha, Bianca Weiss Albuquerque, Angela Cano, Yrma Andreina Carrero Marquez, Janaina Barbosa Pedrosa Costa, Bernardo Monteiro Flores, David Galbraith, Milena Holmgren, Michelle Kalamandeen, Marcelo Trindade Nascimento, Alexandre A. Oliveira, Hirma Ramirez-Angulo, Maira Rocha, Veridiana Vizoni Scudeller, Rodrigo Sierra, Milton Tirado, Geertje van der Heijden, Emilio Vilanova Torre, Corine Vriesendorp, Maihyra Marina Pombo, Manuel Augusto Ahuite Reategui, Claudia Baider, Henrik Balslev, Sasha Cardenas, Luisa Fernanda Casas, William Farfan-Rios, Cid Ferreira, Reynaldo Linares-Palomino, Casimiro Mendoza, Italo Mesones, Armando Torres-Lezama, Ligia Estela Urrego Giraldo, Daniel Villarroel, Roderick Zagt, Germaine Alexander Parada, Miguel N. Alexiades, Edmar Almeida de Oliveira, Karina Garcia-Cabrera, Lionel Hernandez, Walter Palacios Cuenca, Susamar Pansini, Daniela Pauletto, Freddy Ramirez Arevalo, Adeilza Felipe Sampaio, Elvis H. Valderrama Sandoval, Luis Valenzuela Gamarra, Hans ter Steege

Summary: This study investigated the geographic patterns and ecological correlates of the most common tree dispersal modes in Amazonia, including endozoochory, synzoochory, anemochory, and hydrochory. The results showed that anemochory was positively associated with mean annual wind speed, while hydrochory was higher in flooded forests. The availability of resources for constructing zoochorous fruits did not explain the distribution of dispersal modes. Further research is needed to understand the association between frugivores and the proportional abundance of zoochory.

GLOBAL ECOLOGY AND BIOGEOGRAPHY (2023)

Article Limnology

A matter of size: Does habitat use depend on body size in Amazonian small-stream shrimp species?

Elmo Pereira da Silva, William E. E. Magnusson

Summary: Natural selection plays a crucial role in determining organism size and shape, which in turn affects resource use. Studies have shown that size-specific effects on niche primarily occur in habitat and food dimensions within populations and assemblages. This study investigates the potential impact of body size on habitat selection in freshwater shrimp species, revealing slight habitat segregation among individuals of different sizes but considerable overlap in habitat use. The findings suggest that while there are subtle ontogenetic shifts in habitat use by conspecifics and differences between individuals of different species with similar sizes, size does not play a major role in driving habitat segregation in shrimp populations and assemblages.

INLAND WATERS (2023)

Article Ecology

The impact of a run-of-the-river hydroelectric dam on a non-volant small-mammal assemblage in Brazilian Amazonia

Raylenne da Silva Araujo, Paulo Estefano Dineli Bobrowiec, Raquel Teixeira de Moura, William Ernest Magnusson

Summary: This study evaluated the impact of wetland loss on tropical river banks on small non-flying mammal assemblages. By analyzing data from pre-reservoir filling monitoring in the Brazilian Amazon, it was found that the flooding of low-lying areas did not negatively affect the assemblage of non-flying small mammals in the short term. However, the remaining areas need to be conserved to maintain the importance of the lost areas for population dynamics.

AUSTRAL ECOLOGY (2023)

Article Ecology

Diverse anthropogenic disturbances shift Amazon forests along a structural spectrum

Marielle N. Smith, Scott C. Stark, Tyeen C. Taylor, Juliana Schietti, Danilo Roberti Alves de Almeida, Susan Aragon, Kelly Torralvo, Albertina P. Lima, Gabriel de Oliveira, Rafael Leandro de Assis, Veronika Leitold, Aline Pontes-Lopes, Ricardo Scoles, Luciana Cristina de Sousa Vieira, Angelica Faria Resende, Alysha Coppola, Diego Oliveira Brandao, Joao de Athaydes Silva Junior, Laura F. Lobato, Wagner Freitas, Daniel Almeida, Mendell S. Souza, David M. Minor, Juan Camilo Villegas, Darin J. Law, Nathan Goncalves, Daniel Gomes da Rocha, Marcelino Carneiro Guedes, Helio Tonini, Katia Emidio da Silva, Joost van Haren, Diogo Martins Rosa, Dalton Freitas do Valle, Carlos Leandro Cordeiro, Nicolas Zaslavsky de Lima, Gang Shao, Imma Oliveras Menor, Georgina Conti, Ana Paula Florentino, Lia Montti, Luiz E. O. C. Aragao, Sean M. McMahon, Geoffrey G. Parker, David D. Breshears, Antonio Carlos Lola Da Costa, William E. Magnusson, Rita Mesquita, Jose Luis C. Camargo, Raimundo C. de Oliveira, Plinio B. de Camargo, Scott R. Saleska, Bruce Walker Nelson

Summary: Amazon forests are experiencing degradation due to various human disturbances, leading to changes in ecosystem and climate function. Through analyzing a large database of canopy lidar data from disturbed and mature forest plots, we found that different land-use and climate-change disturbances have varying impacts on canopy structure. Most disturbed sites showed signs of recovery, but the severity and nature of structural impacts differed among disturbance types. However, there were commonalities in regeneration pathways across disturbance types. The study highlights the resilience of Amazon forests and the importance of studying diverse disturbance types in predicting forest transitions.

FRONTIERS IN ECOLOGY AND THE ENVIRONMENT (2023)

Article Ecology

Palm live aboveground biomass in the riparian zones of a forest in Central Amazonia

Lourdes Falen, Mariane Guedes, Carolina V. de Castilho, Rafael F. Jorge, Francisco M. Bezerra, William E. Magnusson

Summary: Uncertainty remains in aboveground biomass estimates in the Amazon region, as most samples are collected in upland terrains and focus on dicotyledonous trees. The biomass contribution of palms, which dominate 20% of the Brazilian Amazon, and their variation in riparian zones are poorly documented.

BIOTROPICA (2023)

Article Ecology

Responses of ground-dwelling birds and mammals to local environmental variables and human pressure in an Amazonian protected area

Carlos R. Brocardo, Dian C. P. Rosa, Arlison B. Castro, Clarissa Rosa, Kelly Torralvo, Pedro Pequeno, William E. Magnusson, Rodrigo F. Fadini

Summary: Vertebrates in tropical ecosystems, including seed dispersers, herbivores, and top predators, are important for wildlife management and have consequences for the entire ecosystem. The associations between the number of vertebrate records and habitat features, food availability, and human pressure were investigated in a protected area in the Brazilian Amazon. Different groups of animals responded differently to these factors, with some being positively affected by altitude, canopy openness, and leaf area index, and others being negatively affected by altitude.

EUROPEAN JOURNAL OF WILDLIFE RESEARCH (2023)

Article Ecology

Disentangling the effects of environmental and geographic distances on lizard assemblages in Amazonian forests

Gabriela Marques Peixoto, Rafael de Fraga, William Ernest Magnusson, Pedro Henrique Leitao, Igor Luis Kaefer, Albertina Pimentel Lima

Summary: Understanding the ecological and evolutionary processes that shape species assemblages in heterogeneous regions is crucial. This study aimed to investigate the causes of spatial variation in lizard assemblages in the Amazon rainforest, specifically focusing on species interactions, environmental factors, and geographic distance. The results highlight the importance of environmental filtering and forest type in determining the taxonomic and functional composition of lizard assemblages in different areas.

JOURNAL OF BIOGEOGRAPHY (2023)

Article Chemistry, Applied

Near infrared spectroscopy for the identification of live anurans: Towards rapid and automated identification of species in the field

Kelly Torralvo, Flavia Durgante, Celio Pasquini, William E. Magnusson

Summary: In megadiverse regions, such as the Amazon, species identification often requires unavailable specialists. Therefore, the use of new species-recognition tools, like near infrared spectroscopy, is necessary to improve efficiency and accuracy. This study examined the viability of recognizing live Amazonian frogs using portable near infrared equipment.

JOURNAL OF NEAR INFRARED SPECTROSCOPY (2023)

Article Multidisciplinary Sciences

Unraveling Amazon tree community assembly using Maximum Information Entropy: a quantitative analysis of tropical forest ecology

Edwin Pos, Luiz de Souza Coelho, Diogenes de Andrade Lima Filho, Rafael P. Salomao, Ieda Leao Amaral, Francisca Dionizia de Almeida Matos, Carolina V. Castilho, Oliver L. Phillips, Juan Ernesto Guevara, Marcelo de Jesus Veiga Carim, Dairon Cardenas Lopez, William E. Magnusson, Florian Wittmann, Mariana Victoria Irume, Maria Pire Martins, Daniel Sabatier, Jose Renan da Silva Guimaraes, Jean-Francois Molino, Olaf S. Banki, Maria Teresa Fernandez Piedade, Nigel C. A. Pitman, Abel Monteagudo Mendoza, Jose Ferreira Ramos, Joseph E. Hawes, Everton Jose Almeida, Luciane Ferreira Barbosa, Larissa Cavalheiro, Marcia Cleia Vilela dos Santos, Bruno Garcia Luize, Evlyn Marcia Moraes de Leao Novo, Percy Nunez Vargas, Thiago Sanna Freire Silva, Eduardo Martins Venticinque, Angelo Gilberto Manzatto, Neidiane Farias Costa Reis, John Terborgh, Katia Regina Casula, Euridice N. Honorio Coronado, Juan Carlos Montero, Beatriz S. Marimon, Ben Hur Marimon-Junior, Ted R. Feldpausch, Alvaro Duque, Chris Baraloto, Nicolas Castano Arboleda, Julien Engel, Pasca Petronelli, Charles Eugene Zartman, Timothy J. Killeen, Rodolfo Vasquez, Bonifacio Mostacedo, Rafael L. Assis, Jochen Schongart, Hernan Castellanos, Marcelo Brilhante de Medeiros, Marcelo Fragomeni Simon, Ana Andrade, Jose Luis Camargo, Layon O. Demarchi, William F. Laurance, Susan G. W. Laurance, Emanuelle de Sousa Farias, Maria Aparecida Lopes, Jose Leonardo Lima Magalhaes, Henrique Eduardo Mendonca Nascimento, Helder Lima de Queiroz, Gerardo A. C. Aymard, Roel Brienen, Juan David Cardenas Revilla, Flavia R. C. Costa, Adriano Quaresma, Ima Celia Guimaraes Vieira, Bruno Barcante Ladvocat Cintra, Pablo R. Stevenson, Yuri Oliveira Feitosa, Joost F. Duivenvoorden, Hugo F. Mogollon, Leandro Valle Ferreira, James A. Comiskey, Freddie Draper, Jose Julio de Toledo, Gabriel Damasco, Nallarett Davila, Roosevelt Garcia-Villacorta, Aline Lopes, Alberto Vicentini, Janaina Costa Noronha, Flavia Rodrigues Barbosa, Rainiellen de Sa Carpanedo, Thaise Emilio, Carolina Levis, Domingos de Jesus Rodrigues, Juliana Schietti, Priscila Souza, Alfonso Alonso, Francisco Dallmeier, Vitor H. F. Gomes, Jon Lloyd, David Neill, Daniel Praia Portela de Aguiar, Alejandro Araujo-Murakami, Luzmila Arroyo, Fernanda Antunes Carvalho, Fernanda Coelho de Souza, Dario Dantas do Amaral, Kenneth J. Feeley, Rogerio Gribel, Marcelo Petratti Pansonato, Jos Barlow, Erika Berenguer, Joice Ferreira, Paul V. A. Fine, Marcelino Carneiro Guedes, Eliana M. Jimenez, Juan Carlos Licona, Maria Cristina Penuela Mora, Carlos A. Peres, Boris Eduardo Villa Zegarra, Carlos Ceron, Terry W. Henkel, Paul Maas, Marcos Silveira, Juliana Stropp, Raquel Thomas-Caesar, Tim R. Baker, Doug Daly, Kyle G. Dexter, John Ethan Householder, Isau Huamantupa-Chuquimaco, Toby Pennington, Marcos Rios Paredes, Alfredo Fuentes, Jose Luis Marcelo Pena, Miles R. Silman, J. Sebastian Tello, Jerome Chave, Fernando Cornejo Valverde, Anthony Di Fiore, Renato Richard Hilario, Juan Fernando Phillips, Gonzalo Rivas-Torres, Tinde R. van Andel, Patricio von Hildebrand, Edelcilio Marques Barbosa, Luiz Carlos de Matos Bonates, Hilda Paulette Davila Doza, Emile Fonty, Ricardo Zarate Gomez, Therany Gonzales, George Pepe Gallardo Gonzales, Jean-Louis Guillaumet, Bruce Hoffman, Andre Braga Junqueira, Yadvinder Malhi, Ires Paula de Andrade Miranda, Linder Felipe Mozombite Pinto, Adriana Prieto, Agustin Rudas, Ademir R. Ruschel, Natalino Silva, Cesar I. A. Vela, Vincent Antoine Vos, Eglee L. Zent, Stanford Zent, Bianca Weiss Albuquerque, Angela Cano, Diego F. Correa, Janaina Barbosa Pedrosa Costa, Bernardo Monteiro Flores, Milena Holmgren, Marcelo Trindade Nascimento, Alexandre A. Oliveira, Hirma Ramirez-Angulo, Maira Rocha, Veridiana Vizoni Scudeller, Rodrigo Sierra, Milton Tirado, Maria Natalia Umana, Geertje van der Heijden, Emilio Vilanova Torre, Corine Vriesendorp, Ophelia Wang, Kenneth R. Young, Manuel Augusto Ahuite Reategui, Claudia Baider, Henrik Balslev, Sasha Cardenas, Luisa Fernanda Casas, William Farfan-Rios, Cid Ferreira, Reynaldo Linares-Palomino, Casimiro Mendoza, Italo Mesones, Armando Torres-Lezama, Ligia Estela Urrego Giraldo, Daniel Villarroel, Roderick Zagt, Miguel N. Alexiades, Karina Garcia-Cabrera, Lione Hernandez, William Milliken, Walter Palacios Cuenca, Susamar Pansini, Daniela Pauletto, Freddy Ramirez Arevalo, Adeilza Felipe Sampaio, Elvis H. Valderrama Sandoval, Luis Valenzuela Gamarra, Gerhard Boenisch, Jens Kattge, Nathan Kraft, Aurora Levesley, Karina Melgaco, Georgia Pickavance, Lourens Poorter, Hans ter Steege

Summary: In a rapidly changing global environment, understanding the factors that determine species abundance distribution is crucial for studying ecosystem dynamics. The constrained maximization of information entropy framework allows for quantitative analysis of these complex dynamics by examining important constraints using unbiased probability distributions. By applying this framework to Amazonian tree inventories across various forest types and functional traits, the study demonstrates that regional relative abundances of genera have a greater influence on local relative abundances than directional selection for specific functional traits. These results provide valuable insights into ecological dynamics using large-scale data and interdisciplinary methods.

SCIENTIFIC REPORTS (2023)

Article Ecology

How environmental factors affect the abundance and distribution of two congeneric species of Amazonian frogs

Eduardo Moreno, Pedro Pequeno, Sergio Santorelli Junior, Miqueias Ferrao, Albertina Pimentel Lima, William E. Magnusson

Summary: This study examines the impact of environmental variables on sister species that live in sympatry and are closely related in terms of phylogeny at a fine-scale level. The findings suggest that these species have distinct environmental associations, which may contribute to their coexistence. One species demonstrates a preference for drier environments, while the other species exhibits a more generalist habitat and resource use. These patterns support the hypothesis that environmental variables influence sister species differently, and the evolution of certain characteristics may reduce competition for resources, facilitating coexistence in sympatry.

BIOTROPICA (2023)

Article Ecology

Conservation implications of tourism and stress for Amazonian caimans

Washington C. S. Mendonca, Wallice P. Duncan, Marcelo D. Vidal, William E. Magnusson, Ronis Da Silveira

Summary: Ecotourism, while important for biodiversity conservation, may have negative effects on animal health and welfare. A study in Anavilhanas National Park, Brazil revealed that interactions between tourists and Amazonian crocodilians led to increased levels of corticosterone and lactate in black caimans, but not in spectacled caimans. These findings have implications for the management and conservation of Amazonian crocodilians, especially in tourism programs.

JOURNAL OF WILDLIFE MANAGEMENT (2023)

Article Biodiversity Conservation

Anthropogenic factors do not affect male or female jaguar habitat use in an Amazonian Sustainable Reserve

Anelise Montanarin, Emiliano Esterci Ramalho, Daniel Gomes da Rocha, Diogo Maia Grabin, Guilherme Costa Alvarenga, Pedro Aurelio Costa Lima Pequeno, Fabricio Beggiato Baccaro, William Ernest Magnusson

Summary: This study investigated habitat use by jaguars in varzea seasonally flooded forests, taking into account sex differences and individual variation in habitat use. The results indicate that jaguars in the studied area are habitat generalists, with little influence of human settlements on their habitat use.

PERSPECTIVES IN ECOLOGY AND CONSERVATION (2023)

Article Biodiversity Conservation

Optimizing survey effort for Euglossine bees in tropical forests

Juliana Hipolito, William E. Magnusson, Fabricio Baccaro

Summary: Optimizing research efforts for biodiversity monitoring is crucial, but it requires financial and human resources. Euglossini bees have been successfully used as bioindicators in the central Amazon region. The study found that sample area influenced collection effort and different sampling units captured different species compositions.

PERSPECTIVES IN ECOLOGY AND CONSERVATION (2023)

No Data Available