Results 11 to 20 of about 104,299 (162)

The collective application of shorebird tracking data to conservation

Conservation Biology, EarlyView.
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison, Candace Stenzel, Alexandra Anderson, Jessica Howell, Richard B. Lanctot, Marley Aikens, Joaquín Aldabe, Liam A. Berigan, Joël Bêty, Erik Blomberg, Juliana Bosi de Almeida, Andy J. Boyce, David W. Bradley, Stephen Brown, Jay Carlisle, Edward Cheskey, Katherine Christie, Sylvain Christin, Rob Clay, Ashley Dayer, Jill L. Deppe, Willow English, Scott A. Flemming, Olivier Gilg, Christine Gilroy, Susan Heath, Jason M. Hill, J. Mark Hipfner, James A. Johnson, Luanne Johnson, Bart Kempenaers, Paul Knaga, Eunbi Kwon, Benjamin J. Lagassé, Jean‐François Lamarre, Christopher Latty, Don‐Jean Léandri‐Breton, Nicolas Lecomte, Pam Loring, Laura A. McDuffie, Rebecca McGuire, Scott Moorhead, Juan G. Navedo, David Newstead, Erica Nol, Alina Olalla‐Kerstupp, Bridget Olson, Elizabeth Olson, Julie Paquet, Allison K. Pierce, Jennie Rausch, Kevin Regan, Matthew E. Reiter, Amber M. Roth, Mike Russell, Daniel Ruthrauff, Sarah T. Saalfeld, Amy L. Scarpignato, Shiloh Schulte, Nathan R. Senner, Joseph A. M. Smith, Paul A. Smith, Zach Spector, Kelly Srigley Werner, Michelle L. Stantial, Audrey R. Taylor, T. Lee Tibbitts, Mihai Valcu, Nils Warnock, Walter Wehtje, Brad Winn, Michael B. Wunder   +71 more
wiley   +1 more source

Land Management Strategies and their Implications for Mazahua Farmers’ Livelihoods in the Highlands of Central Mexico

Miscellanea Geographica: Regional Studies on Development, 2016
This paper presents a case study from a Mazahua indigenous community in the rural Highlands of Central Mexico. It analyses Mazahua farming livelihoods characterised by subsistence agriculture, marginality, poverty and severe land degradation.
García-Fajardo Belina, Orozco-Hernández María Estela, McDonagh John, Álvarez-Arteaga Gustavo, Mireles-Lezama Patricia   +4 more
doaj   +1 more source

Macroeconomía y café en Colombia: un sumario de los efectos macroeconómicos de la economía cafetera

Lecturas de Economía, 2010
En el marco de esquemas macroeconómicos, clásico y keynesiano, el presente trabajo se concentra en el examen de algunas hipótesis sobre los efectos macroeconómicos de eventos que ocurren en la órbita cafetera, señalando, de paso, los énfasis y alcances ...
Carlos Esteban Posada
doaj   +1 more source

A framework for maximizing the benefit from retaining regrowth on private land

Conservation Biology, EarlyView.
Abstract Conservation interventions often have lower‐than‐desired positive impacts, as revealed by retrospective counterfactual‐based evaluations. To address this, a prospective counterfactual‐based approach can be used to estimate potential benefits and design conservation interventions to maximize outcomes. We developed a framework for estimating the
Hannah Thomas, Jeremy S. Simmonds, Michelle S. Ward, Laura J. Sonter, Martine Maron   +4 more
wiley   +1 more source

El trabajo infantil y la recesión económica de 1999 en Colombia.

Revista de Economía del Rosario, 2010
El artículo examina la relación entre crecimiento económico, ingresos de las familias, empleo infantil y asistencia escolar en Colombia. También analiza el impacto de la recesión económica de 1999 en la educación y empleo infantil.
Claudia Marcela Umaña Aponte
doaj   +1 more source

Identifying the exposure of taxonomic, functional, and phylogenetic diversity of steppe birds to renewable energy development

Conservation Biology, EarlyView.
Abstract Biodiversity is globally threatened by human impacts, including land‐use transformation and climate change, which has prompted a rapid transition from fossil fuels to cleaner energy sources, such as photovoltaic (PV) energy. However, utility‐scale PV plants require vast areas and can lead to conflicts with biodiversity conservation, making ...
Pablo Medrano‐Vizcaíno, François Mougeot, Beatriz Arroyo, Gerard Bota, David Giralt, Laura Maeso‐Pueyo, Carlos A. Martín, Manuel B. Morales, Pedro P. Olea, Juan Traba, Ana Benítez‐López   +10 more
wiley   +1 more source

Assessing responses of reef island seabirds to environmental and anthropogenic drivers

Conservation Biology, EarlyView.
Abstract Tropical insular ecosystems face escalating, cumulative impacts of land‐ and sea‐based ecological threats that jeopardize the long‐term sustainability of their native communities. This joint vulnerability is epitomized by reef island seabirds, which are exposed to reef decline and coastal erosion driven by climate change, reduction in prey ...
Tristan Berr, Alexandre Millon, Pascal Dumas, Poetea Guehenneuc, Fany Perez, Hélène De Méringo, Julien Baudat‐Franceschi, Éric Vidal   +7 more
wiley   +1 more source

Afrocolombianos, discriminación y segregación espacial de la calidad del empleo para Cali

Cuadernos de Economía, 2016
Este artículo analiza cómo la raza y posición geográfica inciden en la calidad del empleo de los caleños. Estimamos un modelo probit ordenado a partir de información de la Encuesta de Empleo y Calidad de Vida (EECV) para Cali, aplicada por el Ministerio ...
José Santiago Arroyo Mina, Luis Felipe Pinzón Gutiérrez, Jhon James Mora, Dany Alexis Gómez Jaramillo, Andrés Cendales   +4 more
doaj   +1 more source

Key agroecosystems for the conservation of amphibians and reptiles in Europe

Conservation Biology, EarlyView.
Abstract Agricultural expansion and intensification are driving amphibian and reptile declines worldwide. However, sustainably managed agroecosystems can support a high diversity of herpetofauna, which play a key role in pest control, reducing crop damage.
Andrea Dalpasso, Stefano Canessa, Mattia Falaschi, Alejandra Moràn‐Ordoñez, Gentile Francesco Ficetola   +4 more
wiley   +1 more source

Una nota sobre la evolución de la estructura arancelaria de Colombia 2002-2014

Revista Tiempo & Economía, 2017
El presente documento tiene como objetivo presentar un panorama general sobre el desarrollo de la política arancelaria entre 2002 y 2014. Para ello, se revisó la evolución del Arancel Externo Común (AEC) de la Comunidad Andina de Naciones (CAN) y de las ...
Víctor Manuel Nieto
doaj   +1 more source