Results 11 to 20 of about 149,951 (177)
Spatial segregation and bycatch risk as potential drivers of population trends of wandering albatrosses at South Georgia. [PDF]
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 ...
Warwick-Evans V +3 more
europepmc +2 more sources
Abstract Global change is increasing the frequency and severity of human‐wildlife interactions by pushing people and wildlife into increasingly resource‐limited shared spaces. To understand the dynamics of human‐wildlife interactions and what may constitute human‐wildlife coexistence in the Anthropocene, there is a critical need to explore the spatial,
Christine E. Wilkinson +4 more
wiley +1 more source
Building pondscapes for amphibian metapopulations. [PDF]
Abstract The success of ponds constructed to restore ecological infrastructure for pond‐breeding amphibians and benefit aquatic biodiversity depends on where and how they are built. We studied effects of pond and landscape characteristics, including connectivity, on metapopulation dynamics of 12 amphibian species in Switzerland.
Moor H +6 more
europepmc +2 more sources
Population aging from a demographic perspective in the next 13 years. Province of Cienfuegos
Foundation: the phenomenon of population aging occurs gradually; it involves fertility, mortality and migration, which in combination over time determine the growth and age structure of the population.Objective: to characterize the trend towards ...
Juan Rafael Zerquera Rodríguez +1 more
doaj +2 more sources
Fine-scale population structure and asymmetrical dispersal in an obligate salt-marsh passerine, the Saltmarsh Sparrow (Ammodramus Caudacutus) [PDF]
Understanding the spatial scale of gene flow can yield valuable insight into the ecology of an organism and guide conservation strategies. Fine-scale genetic structure is uncommon in migratory passerines because of their high vagility and presumed high ...
Babbitt, Kimberly J. +3 more
core +2 more sources
Durante esta investigación se muestrearon periódicamente sistemas productivos de piña y plátano en la Región Huetar Norte (RHN) y de piña en la Región Huetar Atlántica (RHA), con el objetivo de identificar los géneros de nematodos fitoparásitos asociados
Tomás de Jesús Guzmán-Hernández +4 more
doaj +1 more source
No convergencia en america latina [PDF]
In this paper we carry out an empirical analysis on convergence for Latin America for the 1960-1998 period, by means of panel data estimations. Our evidence does not indicate neither the presence of absolute and conditional convergence, or ...
Dabús, Carlos +2 more
core +3 more sources
Modelamiento matemático de la dinámica de dos poblaciones bacterianas termófilas y amiloliticas aisladas del volcán Chiles. [PDF]
Se desarrolló un estudio que evalúa la dinámica de dos aislados bacterianos termófilos amilolíticos de una fuente termal del volcán Chiles, Nariño, midiendo su crecimiento y la hidrolísis de almidón en el tiempo.
Burbano, Edith +4 more
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Resumen A partir de dos registros de población de fines del siglo XVIII para Casabindo y Cochinoca, Puna de Jujuy, se realiza un análisis detallado sobre los grupos familiares asentados en cada uno de ellos.
Daniela Peña Aguilera +1 more
doaj +1 more source
Diagnóstico de movilidad urbana en la Zona Metropolitana de Cancún (ZMC), México [PDF]
El continuo crecimiento en la inversión turística de la zona metropolitana de Cancún (ZMC), se acompañó de empleos y con ello, de un exponencial crecimiento poblacional, en la ciudad, que creció por más de 10 años por arriba del 12%.
CALDERON MAYA, JUAN ROBERTO +3 more
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