Results 41 to 50 of about 1,627 (170)

Floral biology and breeding system of Psychotria tenuinervis Muell. Arg. (Rubiaceae) in the Atlantic rain forest, SE Brazil Biologia floral e sistema reprodutivo de Psychotria tenuinervis Muell. Arg. (Rubiaceae) na Floresta Atlântica, SE Brasil

Acta Botânica Brasílica, 2007
(Floral biology and breeding system oi Psychotria tenuinervis Muell. Arg. (Rubiaceae) in the Atlantic rain forest, SE Brazil). The aim of this study was to investigate pollination biology, floral morphometry, morph ratio and breeding system oiPsychotria ...
Carolina Bernucci Virillo, Flavio Nunes Ramos, Cibele Cardoso de Castro, João Semir   +3 more
doaj   +1 more source

Tourism, human–wildlife interactions, and wildlife trade in the globalizing Amazon

Conservation Science and Practice, EarlyView.
Tourism in the globalizing Peruvian Amazon contributes to harmful human–wildlife interactions and the wildlife trade, with tourists participating in activities such as handling wildlife, taking selfies with animals, purchasing live animals, and wild meat consumption.
Christian J. Rivera, William R. Travis, Miguel Caireta Camps, Ruth M. Rocker, Javier Velásquez Varela, Pamela Montero Alvarez, Agustín Fuentes, David S. Wilcove   +7 more
wiley   +1 more source

Neotropical Cave Entrances as Environmental Filters for Vascular Plant Communities Along Low‐Light and Soil Resource Gradients

Journal of Vegetation Science, Volume 37, Issue 4, July/August 2026.
Conceptual representation of cave entrances as ecological filters along the epigean forest–cave continuum in Neotropical quartzite systems. Vascular plant richness declines sharply from the well‐lit, organic‐rich forest toward the low‐light, quartz‐rich cave interior, while community composition and β‐diversity are shaped by the combined effects of ...
Rafael Costa Cardoso, Guilherme Henrique Rosa, Roberto Franco‐Junior, Diego Tassinari, Alexandre Christofaro Silva, Marconi Souza‐Silva, Rodrigo Lopes Ferreira   +6 more
wiley   +1 more source

Espécies arbóreo-arbustivas da família Rubiaceae Juss. na bacia do rio Tibagi, PR, Brasil

Hoehnea
RESUMO Rubiaceae, a quarta maior família de angiospermas em número de espécies no mundo, é reconhecida pelas folhas opostas, estípulas interpeciolares, corola gamopétala e ovário ínfero.
Miguel Ferreira Junior, Ana Odete Santos Vieira   +1 more
doaj   +1 more source

Superfície da lâmina foliar de Psychotria nuda (Cham. & Schltdl.) Wawra, P. leiocarpa Cham. & Schltdl., P. stenocalyx Müll. Arg. e P. tenuinervis Müll. Arg. (Rubiaceae) Leaf surface of Psychotria nuda (Cham. & Schltdl.) Wawra, P. leiocarpa Cham. & Schltdl., P. stenocalyx Müll. Arg. e P. tenuinervis Müll. Arg. [Rubiaceae]

Acta Botânica Brasílica, 1995
São apresentados dados relativos à micromorfologia da superfície foliar de quatro espécies de Psychotria. O estudo foi realizado em indivíduos que ocorrem na Floresta Pluvial Tropical (Mata Atlântica). Atenção especial é dada ao tipo de cera epicuticular
Ricardo Cardoso Vieira, Doria Maria Saiter Gomes   +1 more
doaj   +1 more source

Diet composition of the Red‐billed curassow (Crax blumenbachii) and its role as seed disperser in the Atlantic Forest: conservation insights

Restoration Ecology, Volume 34, Issue 5, July 2026.
Abstract Introduction Forest fragmentation and defaunation are major drivers of biodiversity loss in the Atlantic Forest of Brazil, where 70–90% of tree species depend on animal‐mediated seed dispersal. Reintroduction of large frugivores, such as cracids, is being used to restore species populations and lost ecological functions.
Maria P. M. X. Rufino, Carlos M. M. E. Torres, Peter van der Sleen, Lausanne S. de Almeida, Fabiano R. de Melo, Kesleyane P. Camilo, Otávio M. Verly, Walter da Silva Costa, Jacinto M. de Lana, Marielos Peña‐Claros   +9 more
wiley   +1 more source

Rubiaceae Juss. do Parque Estadual das Várzeas do Rio Ivinhema, MS, Brasil

Hoehnea
Este trabalho objetivou reconhecer os gêneros e espécies de Rubiaceae ocorrentes no Parque Estadual das Várzeas do Rio Ivinhema, MS, localizado na bacia do Paraná, entre as coordenadas 22K 0226719 UTM 7463768.
Zefa Valdivina Pereira, Luiza Sumiko Kinoshita   +1 more
doaj   +1 more source

Psychotria frondosa S. Moore

, 2021
Published as part of Turner, Ian M, Brearley, Francis Q, Trethowan, Liam A & Utteridge, Timothy M A, 2021, A SURVEY OF ALUMINIUM ACCUMULATION IN EUMACHIA (RUBIACEAE), pp. 1-10 in Edinburgh Journal of Botany 78 (335) on page 10, DOI: 10.24823/EJB.2021.335, http://zenodo.org/record ...
Turner, Ian M, Brearley, Francis Q, Trethowan, Liam A, Utteridge, Timothy M A   +3 more
openaire   +2 more sources

Density Estimates of Endangered Endemic Rodents Suggest Broader Impacts of Invasive Burmese Pythons Following a Category 4 Hurricane in the Florida Keys

Biological Diversity, Volume 3, Issue 2, Page 88-98, June 2026.
Density estimates of two endangered rodent subspecies, endemic to Key Largo, Florida, USA. These findings illustrate the contrasting dynamics of two native species associated with the prevalence of invasive Burmese pythons and global change. The woodrats' decline emphasizes its potential risk of extinction as global change continues to impact island ...
Shauna M. Sayers, Brent S. Pease, Brandon W. McDonald, Isabella R. Collamati, Jeremy D. Dixon, Michael V. Cove   +5 more
wiley   +1 more source

Sustainable production of bioactive alkaloids in Psychotria L. of southern Brazil: propagation and elicitation strategies

Acta Botânica Brasílica
Psychotria is the largest genus in Rubiaceae. South American species of the genus are promising sources of natural products, mostly due to bioactive monoterpene indole alkaloids they accumulate.
Yve Verônica da Silva Magedans, Kelly Cristine da Silva Rodrigues-Corrêa, Cibele Tesser da Costa, Hélio Nitta Matsuura, Arthur Germano Fett-Neto   +4 more
doaj   +1 more source