Results 21 to 30 of about 489 (158)

Anthropogenic or Natural Dispersal: Case of the Spiny‐Tailed Iguanas (Ctenosaura) on Clarion Island, Mexico

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
Species can colonize oceanic islands by both natural and human‐assisted dispersal and human‐caused species introductions have had catastrophic effects on ecosystems around the world. The Spiny‐tailed Iguanas inhabiting Clarion Island were previously considered introduced. Molecular data and analyses support iguanas' arrival on Clarion Island by natural
Daniel G. Mulcahy   +5 more
wiley   +1 more source

Variabilidade genética de acessos de maracujá-suspiro com base em marcadores moleculares Genetic variability of wild passion fruit determined by molecular markers

open access: yesRevista Brasileira de Fruticultura, 2007
Passiflora nitida é uma espécie silvestre amplamente distribuída pelo território brasileiro, constituindo-se em fonte de resistência a doenças foliares e de raízes. O objetivo deste trabalho foi avaliar a variabilidade genética entre acessos de P. nitida
Keize Pereira Junqueira   +5 more
doaj   +1 more source

Producción de ovino de carne en medio semiárido [PDF]

open access: yes, 2007
Unpublishe
Alabart Alvarez, José Luis   +15 more
core  

Gene Flow and Vertical Stratification of Pollination in the Bat‐Pollinated Liana Marcgravia longifolia

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
This study investigates pollen dispersal, vertical stratification of gene flow, and spatial genetic structure in the bat‐pollinated liana Marcgravia longifolia in a western Amazonian forest. Flowers are produced from the forest floor to the canopy, allowing analysis of pollination across strata.
Malika Gottstein   +6 more
wiley   +1 more source

Confirmación taxonómica de Gelidium americanum (Gelidiaceae, Rhodophyta) en Tabasco, México, usando un enfoque morfológico y molecular

open access: yesActa Botanica Mexicana, 2021
Antecedentes y Objetivos: Gelidium americanum se distribuye ampliamente en la costa Atlántica de México; sin embargo, hasta ahora no se han realizado estudios que confirmen su identidad taxonómica utilizando marcadores moleculares y caracteres ...
Nataly Quiroz-González   +2 more
doaj   +1 more source

Antropología biológica y paleoantropología [PDF]

open access: yes, 2002
Materi
Carnese, francisco
core  

The role of insularity: Plants have few ornithophilous traits but are visited by morphologically more distinct hummingbirds in the Caribbean islands

open access: yesFunctional Ecology, Volume 39, Issue 7, Page 1678-1692, July 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Functional traits determine interactions between plants and pollinators, and to increase pollination efficiency, many plants have evolved traits to attract specific pollinator groups. However, biogeographical setting may influence trait evolution and biotic interactions.
Maximillian G. R. Vollstädt   +46 more
wiley   +1 more source

Determinación de la variación genética en poblaciones chilenas de Bufo spinulosus usando marcadores RAPDs y secuencias de la Región control del DNA mitocondrial [PDF]

open access: yes, 2002
Bufo spinulosus (ANURA: BUFONIDAE) es un anfibio sudamericano que habita la cordillera de los Andes y que en Chile tiene una distribución alopatrica (discontinua).
Correa Quezada, Claudio Luis
core  

Bird–window collisions: A comprehensive dataset for the Neotropical region

open access: yesEcology, Volume 106, Issue 6, June 2025.
Abstract Our primary objective was to compile a comprehensive dataset on bird–window collisions throughout the Neotropical region, including both published and unpublished sources. On May 12, 2020, we extensively disseminated invitations to provide data via email and social media platforms.
Augusto João Piratelli   +133 more
wiley   +1 more source

Distancias genéticas en poblaciones aborígenes de la Argentina

open access: yesRevista Argentina de Antropología Biológica, 2010
RESUMEN: En el presente estudio se estimaron las distancias genéticas entre diferentes grupos de aborígenes del Chaco y de la Patagonia Argentina. Para ello se emplearon 5 loci de grupos sanguíneos (Rh, MNSs, P, Duffy y Diego) y para el cálculo de ...
Alicia Susana Goicochea   +4 more
doaj   +2 more sources
anthropology
antropología
rapd
ciencias naturales
marcadores moleculares
muña
molecular markers
minthostachys mollis
hylocereus undatus
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