Results 41 to 50 of about 64,731 (199)
A novel circumscription and classification for Neurolaeneae (Asteraceae)
TAXON, EarlyView.Abstract Neurolaeneae (Asteraceae) have a complicated taxonomic history. The tribe was described in 1927, but subsequently disregarded in 1977, and later reinstated as a tribe following a large‐scale phylogenetic analysis of Asteraceae in 2002. To date, this tribe has remained poorly studied and it has never been the subject of a comprehensive ...
Vinicius R. Bueno +4 more
wiley +1 more source
Animal Conservation, EarlyView.Identifying the most effective criterion to assess the conservation status of vulnerable species in threatened tropical regions is crucial to evaluate recovery plans. We investigated the influence of environmental heterogeneity on the extent of occurrence (EOO), area of occupied habitat (AOH), and density variation of two Amazonian riparian frog ...
Rafael F. Jorge +3 more
wiley +1 more source
Generic definitions and species assignments in the family Epipsocidae (Psocoptera) [PDF]
, 1998 The family Epipsocidae is defined, with the addition of one character not previously used. The genus Dimidistriata Li and Mockford is removed from Epipsocidae and tentatively placed in the family Dolabellopsocidae. The genus Parepipsocus Badonnel remains
Mockford, Edward L.
core +1 more source
Escritos Socioambientais em Roraima
, 2021 Os estudos socioambientais têm adquirido crescente relevância no debate internacional nas últimas décadas, em resposta a uma evolutiva dinâmica desequilibrada na relação homem - meio ambiente, por meio de uma rica agenda de pesquisas construídas por diferentes espectros que vão desde a abordagem disciplinar à multidisciplinar, ou ainda, da análise ...
openaire +1 more source
How Brazil Acquired Roraima [PDF]
Hispanic American Historical Review, 1990 N 1988, the northernmost part of Brazil became the state of I Roraima. This kite-shaped territory has an area of 230,000 square kilometers, and embraces the valley of the Rio Branco, a northern tributary of the Amazon River system. Near the headwaters of this great river, the dense rainforests of Amazonia open in a natural savanna, a gently rolling ...
openaire +1 more source
MOBILIDADE POPULACIONAL, FRONTEIRA E DINÂMICA DAS PAISAGENS NA AMAZÔNIA: O CASO DE RORAIMA, BRASIL
Cadernos de Estudos Sociais, 1996 O autor discorre sobre a mobilidade populacional e a dinâmica das paisagens na Amazônia, tendo o Estado de Roraima, última fronteira de penetração e povoamento, como estudo de caso.
Nilson Crocia de Barros
doaj
Agricultural and Forest Entomology, Volume 28, Issue 1, Page 94-107, February 2026.Biological invasions and climate change drive species redistribution, threatening biodiversity, agriculture, and public health. Species distribution modelling (Maxent algorithm) predicted Anarsia lineatella current and future global range, identifying risk areas in Africa, Asia, Australia, and the Americas under changing climate conditions.
George Amaro +3 more
wiley +1 more source
Results of a botanical expedition to mount Roraima, Guyana. I. Bryophytes [PDF]
, 2013 A bryological inventory of the Upper Mazaruni District, Guyana (former British Guiana) yielded almost three hundred species, including 2 genera and 11 species new to science and 130 species new to the Guianas.
Florschütz-de Waard, J. +1 more
core
Textos e Debates, 2012 Neste trabalho apresentamos uma síntese de estudos preliminares sobre a Questão do Pirara. Para isso, buscamos aspectos de suas raízes no período colonial, quando foi registrada a presença de espanhóis, holandeses e seguida dos lusitanos e ingleses na região. É um evento do Brasil amazônico pouco discutido na historiografia regional e importante para a
OLIVEIRA, REGINALDO GOMES +1 more
openaire +3 more sources