Results 51 to 60 of about 993,469 (209)

Phi Beta Kappa, Alpha Chapter Records [PDF]

open access: yes, 1875
Phi Beta Kappa was founded by five students at the College of William and Mary in 1776. This minute book documents the organization in the period 1875-1905.
Phi Beta Kappa   +1 more
core  

Translocation effects on regional and local population viability and connectivity

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Translocations and reintroductions aim to improve the viability of isolated populations and promote connectivity for large carnivores. However, there is no established framework for assessing their success. We used the Eurasian lynx (Lynx lynx) in western and central Europe to assess the impact of translocations on the viability of six ...
Eva Sánchez Arribas   +25 more
wiley   +1 more source

IC 087 Guide to Beta Beta Houston Records, 1969-2011 [PDF]

open access: yes, 2019
The Beta Beta Houston records contains correspondence, ephemera, photos, scrapbooks and some realia that document the history of the Beta Beta Houston Chapter #648 at Texas Women\u27s University (TWU), Region 6 of Sigma Theta Tau International Honor ...
Beta Beta Houston
core   +1 more source

DISTRIBUCIÓN VERTICAL DE LA DIVERSIDAD BETA DE MACROINVERTEBRADOS EN UN LAGO OLIGOTRÓFICO DE ALTA MONTAÑA NEOTROPICAL

open access: yesActa Biológica Colombiana, 2023
Los componentes alfa (α) y beta (β) de la diversidad gamma (γ), y la partición de β en anidamiento y recambio, contribuyen a entender los factores que determinan la diversidad biológica. El objetivo de este estudio fue entender los factores que afectan los cambios espaciales de diversidad de macroinvertebrados en lagos andinos tropicales de alta ...
Yimy Herrera-Martínez   +4 more
openaire   +1 more source

Plan Estratégico para la Diversidad Biológica 2011-2020 [PDF]

open access: yes, 2010
Hoja de datos del Plan Estratégico para la Diversidad Biológica 2011 ...
Secretaría del Convenio sobre la Diversidad Biológica, Naciones Unidas
core  

Melanism in salamanders: effects of insularity, sex and size on dorsal colouration in Salamandra salamandra

open access: yesJournal of Zoology, Volume 329, Issue 4, Page 340-352, August 2026.
In this study we tested the effects of insularity on amphibian colouration using the fire salamander as a model system. Although increased melanism was not a consistent pattern across all islands, salamanders from one island exhibited higher proportions of black pigmentation than mainland populations, while insular populations overall showed reduced ...
L. Alarcón‐Ríos   +2 more
wiley   +1 more source

Análisis espacial y conservación de los anfibios y reptiles del Estado de México

open access: yesCiencia Ergo Sum, 2009
Se calculó la riqueza y diversidad alfa y beta de los anfibios y reptiles del Estado de México, para identificar las regiones de mayor importancia para su estudio y conservación. Se analizaron 10 992 registros.
Xóchitl Aguilar Miguel   +3 more
doaj  

Tropical Bee Assemblage Diversity Decreases With Elevation While Body Size Increases

open access: yesBiotropica, Volume 58, Issue 4, July 2026.
Photos of bee specimens collected in the Colombian Andes across a nearly 3000 m elevational cline. They are arranged to illustrate both the decline in richness with elevation and the increase in community average body size with elevation. ABSTRACT Elevation gradients are powerful drivers of changes in species composition, richness, and functional ...
Nash E. Turley   +6 more
wiley   +1 more source

La danza, a cura di Simone Beta. Traduzione di Marina Nordera, con testo a fronte

open access: yes, 1992
Il volume consiste nella traduzione italiana (per opera di Marina Nordera) del trattato La danza (De saltatione) di Luciano. L'introduzione (pp. 9-47), le note al testo (pp. 111-138) e la bibliografia (pp. 139-142) sono di Simone Beta.
BETA, SIMONE, Nordera M.
core   +1 more source

Composición, estructura y diversidad del cerro El Águila, Michoacán, México

open access: yesRevista Mexicana de Biodiversidad, 2011
Se describe la composición, estructura y diversidad de la vegetación presente en el cerro El Águila, Michoacán. Se reconocieron fisonómicamente 5 tipos de vegetación y en cada uno se establecieron 16 parcelas circulares de 400 m2 (3.2 ha) para censar los
Luis Eduardo Zacarias-Eslava   +4 more
doaj   +1 more source

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