Results 41 to 50 of about 44,971 (199)

Origins of neotropical leafy Hepaticae [PDF]

open access: yes, 1990
The neotropical hepatic flora, predominantly constituted by members of the Jungermanniales and Metzgeriales, includes a disproportionate number of genera which are endemic (over 38) and a number which evidently originated here but have shown slight and ...
Schuster, Rudolf M.
core  

A Modified GHG Intensity Indicator: Toward a Sustainable Global Economy based on a Carbon Border Tax and Emissions Trading

open access: yes, 2013
It will be difficult to gain the agreement of all the actors on any proposal for climate change management, if universality and fairness are not considered.
Cheriet, Mohamed   +2 more
core   +1 more source

Leptodactylus knudseni [PDF]

open access: yes, 2006
Number of Pages: 12Integrative BiologyGeological ...
Heyer, Miriam Muedeking   +1 more
core   +1 more source

Hepaticae of Cerro Venamo, Venezuela, collected by J. Steyermark [PDF]

open access: yes, 2002
A revision of herbarium material (NY) from Cerro Venamo, Venezuela (5°59’ N, 61°23’ W, 1890 m) yielded 77 hepatic species in 44 genera and 13 families. Most species have a neotropical distribution (75,32%), 6,49%, are pantropical and 9,09% are reported ...
Borges, Anna Luiza Ilkiu   +1 more
core  

Preliminary checklist of the Cerambycidae, Disteniidae, and Vesperidae (Coleoptera) of Peru [PDF]

open access: yes, 2012
A preliminary checklist of the Cerambycidae, Disteniidae, and Vesperidae (Coleoptera) of Peru is presented. Within Cerambycidae, we record five subfamilies, 55 tribes, 345 genera and subgenera, and 714 species.
Carbonel Carril, Sarah C.   +4 more
core   +4 more sources

Treerunners, cryptic lizards of the Plica plica group (Squamata, Sauria, Tropiduridae) of northern South America

open access: yesZooKeys, 2013
The arboreal, Neotropical lizard Plica plica (Linnaeus, 1758) has been long considered a widespread species with a distribution east of the Andes. A preliminary examination of 101specimens from about 28 locations mostly north of the Amazon suggests Plica
John Murphy, Michael Jowers
doaj   +1 more source

O que pretende o Brasil na Guiana Essequibo?

open access: yesMeridiano 47, 2017
The article discusses the hydropower project to be developed on the Mazaruni River, in Guyana, which seeks to export energy to Brazil. Mazaruni River is located in the Esequibo region, historically claimed by Venezuela.
Roberta Rodrigues Marques da Silva
doaj  

New Ommatius Wiedemann from the Americas with two new species groups, keys, and taxonomic notes (Diptera: Asilidae) [PDF]

open access: yes, 2009
Two species groups are proposed for Ommatius Wiedemann, normus and tibialis species groups, increasing the number to eight groups from the Americas. The normus group includes six species, two of which are new, O. nebulosus n. sp. and O. tepui n.
Scarbrough, Aubrey G.
core  

Notes on misconceptions in the application of geographical names of the tepuis on the borderlands of Guyana and Venezuela and a clarification of the location of Waukauyengtipu and Cerro Venamo

open access: yesMiscellanea Geographica: Regional Studies on Development, 2022
A review of recent publications concerning the South American Pantepui biogeographic region revealed recurring mistakes in the naming of several table mountains (known locally as ‘tepui’, ‘tipu’ or ‘tepuy’) located around the Guyana-Venezuela border ...
Wrazidlo Mateusz   +2 more
doaj   +1 more source

Rarity of monodominance in hyperdiverse Amazonian forests. [PDF]

open access: yes, 2019
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence
Alonso, Alfonso   +99 more
core  

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