Results 71 to 80 of about 861,447 (303)

Características mineraloquímicas e implicancias genéticas de la Vesubianita del Skarn Loma Marcelo, sierras australes de Buenos Aires [PDF]

open access: yes, 2013
Fil: Ballivián Justiniano, Carlos A.. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Lajoinie, María Florencia. Instituto de Recursos Minerales (INREMI).
Ballivián Justiniano, Carlos A.   +4 more
core  

Ofiuroideos del Cretácico Inferior de Patagonia: primer registro fósil articulado para el Mesozoico de América del Sur [PDF]

open access: yes, 2019
The first articulated remains of ophiuroids for the Mesozoic of South America are described from the Lower Cretaceous of Neuquén Basin, Argentina.
Comerio, Marcos   +6 more
core   +2 more sources

Varied motivations for secondary forest reclearing among landholders make forest persistence challenging

open access: yesPeople and Nature, EarlyView.
Abstract Remote sensing studies show that ephemeral forest regeneration is widespread in the tropics, limiting the climate and biodiversity benefits from net increases in forest cover. Socioeconomic, biophysical and landscape variables can help explain the spatial distribution of reforestation reversals.
Francis H. Joyce
wiley   +1 more source

The importance of integrating herbarium records into conservation plans: a case study on Honduran ferns and lycophytes

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Herbarium collections are powerful, yet underutilized, tools for global biodiversity conservation and protected area management. By integrating digitized herbarium records with existing biodiversity data, previously unknown plant species were uncovered, exposing critical gaps in conservation knowledge.
Sven P. Batke   +6 more
wiley   +1 more source

Skin artefacts due to post-mortem damage caused by Notiothauma reedi: A insect of forensic importance in forest communities of Chile

open access: yesEgyptian Journal of Forensic Sciences, 2016
We selected four types of forestal areas with different botanical compositions and an anthropised prairie in a region of Chile to identify insects that participate in the decomposition of pig carcasses and that can be used as bioindicators in Chilean ...
Alexander Ortloff   +3 more
doaj   +1 more source

Fire effects on rock weathering in the North Patagonian Andean Range

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2023
Fire-induced rock exfoliation is a rapid mechanical weathering process characterized by an uneven heating and thermal expansion stress that causes the detachment of rock peels, flakes or spalls.
Agustín Quesada   +4 more
doaj   +2 more sources

A Bioinformatics Approach for Detecting Repetitive Nested Motifs using Pattern Matching [PDF]

open access: yes, 2016
The identification of nested motifs in genomic sequences is a complex computational problem. The detection of these patterns is important to allow discovery of transposable element (TE) insertions, incomplete reverse transcripts, deletions, and/or ...
Carballido, Jessica Andrea   +4 more
core  

Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski   +2 more
wiley   +1 more source

Mapping arboretum research: Trends, gaps, and opportunities for biodiversity conservation, society, and climate resilience

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Arboreta bridge people and nature while conserving tree biodiversity, supporting climate resilience, and advancing environmental education. This study maps over a century of available and indexed arboretum research, uncovering trends, knowledge gaps, and opportunities for collaboration.
Catarina Patoilo Teixeira   +1 more
wiley   +1 more source

Caracterización Productiva de Explotaciones Lecheras Empleando Metodología de Análisis Multivariado

open access: yesRevista Científica, 2010
Este trabajo tuvo como objetivo caracterizar sistemas productivos lecheros de la comuna de Vilcún, provincia de Cautín, IX Región, Chile, relacionando variables cualitativas y cuantitativas aplicando para ello análisis estadístico multivariado de ...
Juan Pablo Avilez   +6 more
doaj  

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