Results 61 to 70 of about 557 (124)

Situación actual de los recursos forestales en el Estado de Chiapas y sus implicaciones sociales [PDF]

open access: yes, 2014
"Chiapas es uno de los estados inminentemente forestal con una alta diversidad de especies con recursos florísticos, hidrológicos, ecoturísticos y agroforesteria, pero que lamentablemente a través de los años se han venido deteriorando y disminuyendo de ...
Martínez Sánchez, Emilio Irene
core  

Propuesta de un sistema de informatización de la gestión de colecciones paleontológicas [PDF]

open access: yes
This document was first presented to and distributed through the attendants to a Working Session of the V Jornadas de Paleontología (Valencia, november 1989) and has remained unpublished since then.
Esteban, J.   +2 more
core  

Global Genome Biodiversity Network:saving a blueprint of the Tree of Life - a botanical perspective [PDF]

open access: yes, 2016
Background Genomic research depends upon access to DNA or tissue collected and preserved according to high-quality standards. At present, the collections in most natural history museums do not sufficiently address these standards, making them often hard ...
Barker, Katharine   +7 more
core   +1 more source

Die stammesgeschichtliche Entwicklung der Samenpflanzen und ihre mögliche Einbeziehung in den Unterricht der Realschule [PDF]

open access: yes, 2012
Schöpfung oder Evolution, kaum eine Frage spaltet die Gemüter so sehr wie diese. Der Beitrag behandelt eine mögliche schulische Umsetzung des weiten Themengebiets der Evolutionstheorie, am Beispiel der stammesgeschichtlichen Entwicklung der Landpflanzen.
Dieckmann, Ursula, Reiser, Markus
core   +2 more sources

Identifikasi Keragaman Tumbuhan Tingkat Tinggi di Universitas Al Washliyah Labuhanbatu [PDF]

open access: yes
This research aims to identify the diversity of higher plants in the environment of Al Washliyah University Labuhanbatu. Higher plants, known as Phanerogamae, include gymnosperms (Gymnospermae) and angiosperms (Angiospermae).
Panjaitan, Erlia Utami   +1 more
core   +2 more sources

Aspects of Romanian Palaeozoic Palaeobotany and Palynology. Part III. The Late Carboniferous flora of Baia Nouă, Sirinia Basin [PDF]

open access: yes, 2012
The Cucuiova Formation is a Pennsylvanian (late Carboniferous) coal-bearing unit in the intramontane Sirinia Basin, which was formed in the Danubian Units of the South Carpathians.
Christopher J. Cleal, Mihai Emilian Popa
core   +2 more sources

Коллекция Cycadopsida Национального ботанического сада им. Н. Н. Гришко НАН Украины

open access: yesБюллетень Брянского отделения Русского ботанического общества, 2013
Приведены данные о таксономическом и количественном составе коллекции Cycadopsida Национального ботанического сада им. Н.Н. Гришко НАН Украины. Указаны основные источники пополнения коллекциии направления исследований с растениями этой группы.
openaire   +1 more source

Plant colonization of isolated palaeoecosystems: Palynology of a Middle Jurassic extinct volcanic island (Camarena, Teruel, eastern Spain) [PDF]

open access: yes
Palynological assemblages from palaeo-islands are scarce in the fossil record and represent an opportunity to explore plant dispersal patterns and colonization strategies in isolated ecosystems.
Díez, José B.   +5 more
core   +2 more sources

A synthesis of palynological data from the Lower Permian Cerro Pelado Formation (Paraná Basin, Uruguay): A record of warmer climate stages during Gondwana glaciations [PDF]

open access: yes, 2011
This paper presents a synthesis of the palynological record in the Cerro Pelado Formation deposits (Lower Permian, Paraná basin, Cerro Largo Department, north eastern Uruguay) based on pre-existing data and new findings.
BERI, Á.   +2 more
core   +1 more source

Extinct in the wild: The precarious state of Earth's most threatened group of species [PDF]

open access: yes
Extinct in the Wild (EW) species are placed at the highest risk of extinction under the International Union for Conservation of Nature Red List, but the extent and variation in this risk have never been evaluated.
Abeli, T   +14 more
core   +1 more source

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