Results 41 to 50 of about 2,887 (184)

Estimating the total mortality of seabirds following a marine heat wave

Conservation Biology, EarlyView.
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers, William Fulton, Silke Stuckenbrock, Alexander L. Bond   +3 more
wiley   +1 more source

¿Estimando el retorno a la Educación o a los no observables?: Evidencia de datos de panel [PDF]

Estudios de Economía, 2005
In this paper we investigate the bias due to non observable factors in the estimating of return to schooling for the case of Chile. Using the data from the Casen Survey panel 1996-2001, we estimate a difference model. We find a return to schooling around 9%, which is 2 to 5 percents points lower than found in previous studies.
Contreras Guajardo, Dante, Melo, Emerson, Ojeda, Susana   +2 more
openaire   +2 more sources

Análisis Malmquist y DEA intertemporal de las agriculturas de la Unión Europea

Economía Agraria y Recursos Naturales, 2011
En este trabajo se realiza un análisis comparado de dos métodos no paramétricos de medida de productividad total de los factores con datos de panel basados en programación: índices de Malmquist y un modelo DEA intertemporal que permite acotar las medidas
Natalia Aldaz, Joaquín A. Millán
doaj   +1 more source

Continental‐wide prioritization of protected areas to address global and habitat‐specific goals for avian biodiversity conservation

Conservation Biology, EarlyView.
Abstract The United Nations and European Union have set ambitious conservation goals to halt and reverse declines in biodiversity by protecting 30% of land and sea areas by 2030. Effective conservation planning requires evidence‐based spatial prioritization to maximize the coverage of species within designated protected areas.
Yanjie Xu, Diego Pavón‐Jordán, Tyler Hallman, Tristan R. M. Bakx, Lluís Brotons, Sergi Herrando, Alison Johnston, Brett K. Sandercock, Thomas Sattler, Alaaeldin Soultan, Vitalie Ajder, Dawn E. Balmer, Brian Burke, Thiago Cavalcante, Tomasz Chodkiewicz, Ruud P. B. Foppen, Anthony D. Fox, Verena Keller, Tatiana Kornienko, Peter Knaus, Heini Kujala, Åke Lindström, Qenan Maxhuni, Károly Nagy, Ingar Jostein Øien, Tomas Pärt, Dimitrije Radišić, Draženko Z. Rajković, Iván Ramirez, Paul Shimmings, Karel Šťastný, Thomas Vikstrøm, Tomasz Wilk, Aleksi Lehikoinen   +33 more
wiley   +1 more source

LA INCLUSIÓN EN EL SISTEMA FINANCIERO BOLIVIANO Y LAS MICROFINANZAS

Investigación & Desarrollo, 2011
En el presente trabajo se analiza la evolución del grado de inclusión del sistema financiero boliviano en el periodo 2001-2009, empleando un panel de datos elaborado en base a información de la ASFI y FINRURAL.
Cristian Ricardo Nogales Carvajal, Carlos Alberto Foronda Rojas   +1 more
doaj  

The link between colorfulness and extinction risk across the world's passerine birds

Conservation Biology, EarlyView.
Abstract Many of the functional traits that mediate extinction risk across the range of biodiversity relate indirectly to a species’ ability to persist in a changing world, yet certain traits such as coloration directly affect human interactions with wildlife.
Montague H. C. Neate‐Clegg, Natalia Ocampo‐Peñuela   +1 more
wiley   +1 more source

Identifying hotspots of faunal data deficiency to direct urgent research and monitoring

Conservation Biology, EarlyView.
Abstract Data deficiency is a substantial challenge for extinction risk assessments because incomplete data means we cannot accurately identify priority protected areas for conservation. Here, we use the International Union for Conservation of Nature (IUCN) distributions of amphibians, sharks and rays, fish, mammals, birds, and reptiles to identify ...
Matt W. Hayward, Danielle Verdon‐Kidd, K. Colyvas, Ellen Saxon, Andrea S. Griffin   +4 more
wiley   +1 more source

Predictive evolutionary genomics: principles, validation, and practice

New Phytologist, EarlyView.
Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Daniel Ortiz‐Barrientos, Maddie E. James, Yang Liu, Dan Bock, Moisés Exposito‐Alonso, Loren H. Rieseberg   +5 more
wiley   +1 more source

Resource Substitution: Local Governments' Issue Attention and Policy Reinvention

Policy Studies Journal, EarlyView.
ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley   +1 more source

Turismo internacional en el caribe. Su contribución durante los últimos 25 años: 1980 / 2005

ARA: Revista de Investigación en Turismo, 2017
Desde hace años el turismo internacional se ha convertido en una especialización de la región del Caribe. La pregunta sobre si la contribución de las ganancias del turismo internacional ha repercutido en las rentas de la población del Caribe, ha ...
Fred Célimène, Bruno Marques
doaj