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Rareness and specialization in plant-pollinator networks
(Ecological Society of America, 2011-01)
Most rare species appear to be specialists in plant-pollinator networks. This observation could result either from real ecological processes or from sampling artifacts. Several methods have been proposed to overcome these ...
Rare canopy species in communities within the Atlantic Coastal Forest in Rio de Janeiro State, Brazil
(SPRINGER, 2009)
Rare species are one of the principal components of the species richness and diversity encountered in Dense Ombrophilous Tropical Forests. This study sought to analyze the rare canopy species within the Atlantic Coastal ...
How rare is too rare to harvest? Management challenges posed by timber species occurring at low densities in the Brazilian Amazon
(ELSEVIER SCIENCE BV, 2008)
Tropical forests are characterized by diverse assemblages of plant and animal species compared to temperate forests. Corollary to this general rule is that most tree species, whether valued for timber or not, occur at low ...
Population genetics of the naturally rare tree Dimorphandra wilsonii (Caesalpinioideae) of the brazilian cerrado
(Tree Genetics & Genomes, 2018)
Rediscovered after 77 years: Odontodiaptomus thomseni - a rare species of calanoid (Crustacea: Copepoda) from South America
(Sociedade Brasileira de Zoologia, 2012)
The freshwater copepod Odontodiaptomus thomseni (Brehm, 1933) (Calanoida: Diaptomidae) is a rare species that has been reported only once - in its original description (BREHM 1933). The lack of subsequent records led to ...
Rediscovered after 77 years: Odontodiaptomus thomseni - a rare species of calanoid (Crustacea: Copepoda) from South America
(Sociedade Brasileira de Zoologia, 2012-04-01)
The freshwater copepod Odontodiaptomus thomseni (Brehm, 1933) (Calanoida: Diaptomidae) is a rare species that has been reported only once - in its original description (BREHM 1933). The lack of subsequent records led to ...