Results 41 to 50 of about 17,811 (202)

Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil

open access: yesAnimal Conservation, EarlyView.
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro   +4 more
wiley   +1 more source

Las cactáceas del Valle de Tehuacán-Cuicatlán, México: estimación de la calidad del muestreo

open access: yesRevista Mexicana de Biodiversidad, 2015
El Valle de Tehuacán-Cuicatlán (VTC) es conocido, entre otros motivos, por la riqueza y endemismode cactáceas que alberga, pero ¿cómo se distribuye esta familia en el VTC, los registros disponibles de éstas sonrepresentativos de su distribución ...
César Miguel Talonia   +2 more
doaj   +1 more source

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

Relación entre riqueza de especies y la diversidad funcional en ensamblajes de anuros [PDF]

open access: yes, 2019
La riqueza de especies es un atributo importante, pero no está relacionada con las funciones de las especies en los ecosistemas. Por otro lado, la diversidad funcional permite cuantificar el papel de los ensamblajes sobre los procesos de los ecosistemas.
Senior Caycedo, Camilo
core  

Riqueza, diversidad, endemismo y determinantes ambientales de Pinus L. en Oaxaca, México

open access: yesBotan‪ical Sciences
Antecedentes: Oaxaca es una región mexicana con alta riqueza de pinos. Sin embargo, la ubicación concreta donde esta se presenta y la influencia del ambiente sobre la misma es deficiente.
Librado Sosa-Díaz   +4 more
doaj   +1 more source

Diversidad de licopodios y helechos del bosque tropical subcaducifolio del estado de Hidalgo, México

open access: yesActa Botanica Mexicana, 2018
Antecedentes y Objetivos: Los estudios florísticos enfocados en helechos y licopodios en los bosques tropicales de México son escasos. Los objetivos de la presente investigación fueron conocer la riqueza de ambos grupos en el bosque tropical ...
Dorismilda Martínez-Cabrera   +4 more
doaj   +1 more source

Prevalence of traded bird species in key biodiversity areas

open access: yesConservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton   +4 more
wiley   +1 more source

A global assessment of animal community responses to agricultural management

open access: yesConservation Biology, EarlyView.
Abstract Transitions in agricultural management through crop and noncrop diversification on intensively managed croplands or pastures have benefited biodiversity. However, the extent to which agricultural management benefits species communities present in undisturbed ecosystems remains largely unclear.
Susana López Rodríguez   +3 more
wiley   +1 more source

Mamíferos silvestres de la cuenca de Cuitzeo, México

open access: yesActa Universitaria, 2019
La cuenca de Cuitzeo alberga al segundo lago interior de México y sus humedales son hábitat invernal de aves acuáticas migratorias de Norteamérica. Sin embargo, el lago y los hábitats terrestres disminuyen ante la expansión agropecuaria.
Tiberio C. Monterrubio-Rico   +4 more
doaj   +1 more source

Riqueza de especies y endemismo del componente arbóreo de la Península de Yucatán, México

open access: yesBotanical Sciences, 1995
Based on exhaustive studies of herbarium specimens held at the National Herbarium of Mexico (MEXU), as well as of the literature, an updated list of the native species of trees of the Mexican portion of the Yucatan Peninsula is provided (Campeche, Quintana Roo y Yucatan). For each species the state(s) in which it occurs is cited.
Guillermo Ibarra-Manríquez   +2 more
openaire   +3 more sources

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