Results 11 to 20 of about 54,970 (348)

Phylogenetic diversity and conservation of crop wild relatives in Colombia

open access: yesEvolutionary Applications, 2021
Crop wild relatives (CWR) are an important agricultural resource as they contain genetic traits not found in cultivated species due to localized adaptation to unique environmental and climatic conditions.
Carlos E. González‐Orozco   +3 more
doaj   +1 more source

Changes in the carbon balance of tropical forest: evidence from long-term plots [PDF]

open access: yes, 1998
The role of the world’s forests as a “sink” for atmospheric carbon dioxide is the subject of active debate. Long-term monitoring of plots in mature humid tropical forests concentrated in South America revealed that biomass gain by tree growth exceeded ...
Brown, S.   +10 more
core   +2 more sources

In euglossine we trust as ecological indicators: a reply to Añino et al. (2019)

open access: yesSociobiology, 2021
Orchid bees have been considered as good ecological indicators of habitat disturbances but recently Añino et al. (2019. Sociobiology, 66: 194-197) highlighted reasons why Euglossini role as indicators should be reevaluated.
Rodrigo Barbosa Gonçalves   +1 more
doaj   +1 more source

Synopsis of Anomobryum and Bryum (Bryaceae, Bryophyta) in Brazil

open access: yesActa Botânica Brasílica, 2022
Bryaceae is a species-rich moss family comprising ten genera and 660 species, with four genera and 54 species occurring in Brazil. Bryum is the largest genus, with 440 cosmopolitan species, while Anomobryum comprises 47 cosmopolitan species.
Bianca Kalinowski Canestraro   +1 more
doaj   +1 more source

Plant dispersal across the tropical Atlantic by wind and sea currents [PDF]

open access: yes, 2004
This review brings together evidence on the monophyly and ages of angiosperm lineages ranging across the tropical Atlantic with data on the direction, strength, and speed of sea currents and wind jets across that ocean. Mainly for pragmatic reasons (data
Renner, Susanne S.
core   +1 more source

A new species of Clandestinotrema ( Ascomycota : Ostropales : Graphidaceae ) from montane cloud forest in the Venezuelan Andes

open access: yesPlant and Fungal Systematics, 2018
Revision of lichen herbarium specimens at DUKE revealed a species of thelotremoid Graphidaceae new to science. Clandestinotrema carbonera sp. nov. is characterized by an olive-green thallus, dense cortex, the absence of a columella, ascospores 15–24 × 5 ...
Ian D. Medeiros
doaj   +1 more source

A new Megatheriinae skull (Xenarthra, Tardigrada) from the pliocene of northern venezuela – Implications for a giant sloth dispersal to central and North America [PDF]

open access: yes, 2018
A skull of a ground sloth from the Pliocene San Gregorio Formation documents a northern neotropical occurrence of a megatheriine that addresses issues on intraspecific variation and biogeography. The new specimen is broadly similar in size and morphology
Brandoni, Diego   +3 more
core   +2 more sources

A revision of the Neotropical genus Chespiritos (Diptera: Sphaeroceridae: Limosininae)

open access: yesEuropean Journal of Entomology, 2020
The genus Chespiritos Marshall, 2000 (Diptera: Sphaeroceridae) is revised, including C. sindecimus Marshall, 2000, C. pervadens Roháček and Buck, 2003 and 19 new species.
Gregory K. KUWAHARA, Stephen A. MARSHALL
doaj   +1 more source

Triplocania Roesler, 1940: new record for Triplocania rosae Silva-Neto, García Aldrete & Rafael, 2016 and proposal of a new infrageneric group (Psocodea, ‘Psocoptera’, Ptiloneuridae)

open access: yesEntomological Communications, 2019
In this work a new record for Triplocania rosae Silva-Neto, García Aldrete & Rafael, 2016 in the Brazilian state of Minas Gerais was made, and also a propose for a new species group in Triplocania, with an identification key to the species in it.
Alberto M. Silva-Neto   +1 more
doaj   +1 more source

Starch reserves in Neotropical species of Marattia (Marattiaceae-Pteridophytes)

open access: yesAnales del Jardín Botánico de Madrid, 2007
Starch grains found within the parenchymatous tissues of the rhizomes of seven Neotropical species of Marattia Sw. (M. alata Sw., M. cicutifolia Kaulf., M. excavata Underw., M. interposita Christ, M. laevis Sm., M. laxa Kunze and M. weinmanniifolia Liebm.
María del Carmen Lavalle   +1 more
doaj   +1 more source

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