Results 51 to 60 of about 1,419 (183)

Plant-Pollinator and Plant-Florivore Interactions in Two Savanna Species of Malpighiaceae

Plants
Plant density influences interspecific interactions such as pollination and herbivory. In denser populations, pollinators find flowers more easily, increasing reproductive success and population growth. However, the same floral attractiveness also favors
Ludimila Juliele Carvalho-Leite, Helena Maura Torezan-Silingardi   +1 more
doaj   +1 more source

Who prefers the dark? Daily activity of dung beetles from an Amazonian region

Ecological Entomology, EarlyView.
Daily activity patterns shape how dung beetle species coexist in Amazonian forests, revealing temporal niches that reduce competition and structure biodiversity. We compared species richness, abundance and assemblage composition of dung beetles sampled during day and night in a conserved terra‐firme forest in the Brazilian Amazon. Although richness and
Leonardo Vilas‐Bôas M. P. de Cerqueira, Cesar Murilo de Albuquerque Correa, Gabrielle Jorge, André Felipe de Araújo Lira, Júlia de Góis Silva, André Yves, Gleycon Silva, Sergio Santorelli Jr., Renato Portela Salomão   +8 more
wiley   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source

Uma metafísica para a ecologia

Argumentos, 2012
Nesse artigo argumentamos que há uma weltanschuung científica por meio da qual os sistemas vivos são compreendidos a partir do conhecimento sobre como as moléculas se estruturam e funcionam.
Francisco Ângelo Coutinho, Rogério Parentoni Martins, Ana Carolina de Oliveira Neves   +2 more
doaj   +2 more sources

Tropical forest loss and geographic location drive the functional genomic diversity of an endangered palm tree

Evolutionary Applications, 2023
Human activity has diminished forests in different terrestrial ecosystems. This is well illustrated in the Brazilian Atlantic Forest, which still hosts high levels of species richness and endemism, even with only 28% of its original extent remaining. The
Alesandro Souza Santos, Eliana Cazetta, Deborah Faria, Thâmara Moura Lima, Maria Teresa Gomes Lopes, Carolina da Silva Carvalho, Alessandro Alves‐Pereira, José Carlos Morante‐Filho, Fernanda Amato Gaiotto   +8 more
doaj   +1 more source

Period of the day drives distinctions in the taxonomic and functional structures of reef fish assemblages

Journal of Fish Biology, EarlyView.
Abstract Circadian processes are key drivers of animal behaviour, influencing patterns of activity, resource partitioning and competition avoidance. Studies evaluating circadian changes on the structure of marine assemblages are lacking, especially for reef fish.
Marcos B. Lucena, Thiago C. Mendes, Cesar A. M. M. Cordeiro, Carlos E. L. Ferreira   +3 more
wiley   +1 more source

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

Journal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres, Rodrigo Silvestre Martins, Luciano Gomes Fischer, Luís Gustavo Cardoso, Rodrigo Sant'Ana, Bruno Mourato   +5 more
wiley   +1 more source

Integrative taxonomy reveals four new species of the armoured catfish genus Pareiorhina (Siluriformes: Loricariidae) from the upper Paraná River basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Four new species of the small‐sized armoured catfish genus Pareiorhina are described from mountain ranges in the Grande River drainage, upper Paraná River basin, based on morphological and molecular species delimitation methods. Molecular analyses based on the cytochrome oxidase subunit I (COI) marker recovered Pareiorhina as polyphyletic ...
Pedro L. C. Uzeda, Luana J. Sartori, Axel M. Katz, Felipe P. Ottoni, Wilson J. E. M. Costa, Francisco Langeani, Valter M. Azevedo‐Santos   +6 more
wiley   +1 more source

CONSERVAÇÃO DE RECURSOS GENÉTICOS FLORESTAIS

Revista do Instituto Florestal, 1992
Os principais aspectos da conservação dos recursos genéticos florestais são abordados. Para conservação in situ, é esboçado um modelo das ações principais necessárias para dimensionar as áreas de conservação, o tamanho mínimo aceitável das populações e ...
Eduardo Lleras
doaj   +1 more source

As Crônicas de Fernando Fernandez

Historia Ambiental Latinoamericana y Caribeña, 2020
Book Review Fernando Fernandez. Os Mastodontes de Barriga Cheia e Outras Histórias - Crônicas de Biologia e Conservação da Natureza. 1. ed. Rio de Janeiro: Technical Books. 2016. 279 páginas. ISBN: 978-85-61368-53-1.
Renata Oliveira de Souza
doaj   +1 more source