Results 31 to 40 of about 171,778 (123)
Ecology and Evolution, Volume 15, Issue 12, December 2025.Our study reveals that lowland tapir (Tapirus terrestris ) occupancy in Colombia's Orinoquia region is strongly influenced by dense forests and proximity to water bodies, while anthropogenic factors such as pastures and road networks negatively impact their presence.
Ángela Alviz +3 more
wiley +1 more source
Validación de los indicadores sintomáticos en las estimaciones poblacionales: censo del 2000
Uniciencia, 2002 Para contar con buenas estimaciones de población para áreas administrativas menores en los períodos poscensales, se planteó la posibilidad de utilizar variables auxiliares como una alternativa simple para producir estimaciones indirectas.
Edwin Chaves Esquivel
doaj
Density dependence in North American ducks
Animal Biodiversity and ConservationDependencia de la densidad en los ánades norteamericanos La existencia o ausencia de efectos dependientes de la densidad en una población puede acarrear importantes repercusiones para la gestión de la misma.
L. E. Jamieson, S. P. Brooks
doaj +1 more source
Consumidores de grupos de alimentos en población mexicana. Ensanut Continua 2020-2022
Salud Pública de México, 2023 Objetivo. Actualizar las estimaciones del porcentaje de población mexicana que consume grupos de alimentos recomendables y no recomendables de manera habitual. Material y métodos.
Elsa B Gaona-Pineda +5 more
doaj +1 more source
Estimates of the rates of mortality of yellowfin tuna in the Eastern Pacific Ocean derived from tagging experiments [PDF]
, 1971 ENGLISH: Tag release and return data for the Baja California and Gulf of Guayaquil areas were selected for this study because substantial numbers of returns resulted from these releases and because the effects of emigration are small in these areas.
Bayliff, William H.
core
Journal of Applied Ecology, Volume 62, Issue 8, Page 2036-2047, August 2025.The developed approach can be applied to several contexts to efficiently survey spatially aggregated populations using drone‐derived orthomosaics, and to understand phenology at these aggregation sites. We provide general recommendations for planning surveys and discuss implementations of our approach using other types of marking methods and model ...
Ismael V. Brack +5 more
wiley +1 more source
The many Mexicos. Stochastic forecast 2001-2050
Papeles de Población, 2007 La información demográfica en México presenta problemas de coherencia. Las estimaciones más recientes incrementan las discrepancias en lugar de reducirlas.
Katja Kesseli, Carlos Galindo
doaj
Galicia Clínica, 2012 Según estimaciones de la OMS, las enfermedades crónicas serán la causa de muerte del 75% de la población en el año 2020. Tales enfermedades, en íntima relación con el progresivo proceso de enve-jecimiento, están suponiendo una auténtica epidemia que ...
Julio Montes Santiago +1 more
doaj +1 more source
Report of the Inter-American Tropical Tuna Commission for the year 1955 [PDF]
, 1956 ENGLISH: This is the fifth year of investigations, by the Inter-American Tropical Tuna Commission, of the fisheries for tunas and tuna-bait fishes in the Eastern Pacific Ocean adjacent to the shores of the Americas.
core
Differences in estimates of extinction risk between occupancy and abundance data
Conservation Biology, Volume 39, Issue 4, August 2025.Abstract Temporal trends in populations are often measured with presence–absence and abundance data. These data types are inherently different, but quantitative comparisons of threat statuses assessed through occupancy or abundance data are currently lacking.
Mattia Falaschi +3 more
wiley +1 more source