Results 91 to 100 of about 2,384,025 (238)

Spatial segregation and bycatch risk as potential drivers of population trends of wandering albatrosses at South Georgia

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
V. Warwick‐Evans   +3 more
wiley   +1 more source

Frecuencia de cepillado dental en adultos en la población de Guayaquil en el año 2021

open access: diamond, 2022
Marial del Cisne Heras Hungria   +3 more
openalex   +1 more source

Patrón de mortalidad de la población española [PDF]

open access: yes, 2016
Enfermedades del sistema circulatorio, tumores y enfermedades respiratorias son las tres causas más importantes de muerte. Son responsables de siete de cada diez muertes de personas mayores y se mantiene esta tendencia en los últimos años.El patrón de ...
Abellán García, Antonio   +2 more
core  

Detecting mass mortality events in wildlife populations

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Reports in the literature of mass mortality events (MMEs) involving diverse animal taxa are increasing. Yet, many likely go unobserved due to imperfect detection and infrequent sampling. MMEs involving small, cryptic species, for instance, can be difficult to detect even during the event, and degradation and scavenging of carcasses can make ...
Jesse L. Brunner, Justin M. Calabrese
wiley   +1 more source

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

Fecundidad adolescente en el gran área metropolitana de Costa Rica

open access: yesPoblación y Salud en Mesoamérica, 2003
El propósito de esta investigación es determinar si existe correlación espacial en la fecundidad adolescente en el Gran Área Metropolitana de Costa Rica.
Andrea Collado Chaves
doaj  

Sarcopenia en la población anciana institucionalizada [PDF]

open access: yes, 2017
Se ha definido sarcopenia como la pérdida involuntaria de masa, fuerza y rendimiento muscular debida al envejecimiento. La sarcopenia predispone a un aumento de fragilidad lo que supone un mayor riesgo de caídas y a su vez de fracturas.
Hernández Silva, Mirian   +1 more
core  

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

MOVIMIENTOS MIGRATORIOS INTERNOS EN COSTA RICA -Censo de Población 1984-

open access: yesAbra, 1987
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Julio Varela Jara, Hugo González Calvo
doaj  

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