Results 51 to 60 of about 460,101 (227)

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

Hidrología de Hurst y Box Counting para el análisis de persistencia, volatilidad y en dos series de tiempo colombianas

Cuadernos Latinoamericanos de Administración, 2016
Artículo de investigación Propósito: determinar el exponente de Hurst y la dimensión fractal , de dos series de tiempo diferentes, una hidrológica y la otra financiera, con la ayuda de dos métodos que permiten establecer el grado de persistencia y ...
Edgar L. Rodríguez S.
doaj   +1 more source

Precios a productor de vinos a granel en Chile: analisis de series de tiempo. [PDF]

, 2008
128 p.El presente estudio tiene como objetivo predecir el precio de vinos a granel correspondiente a las cepas Cabernet, Semillón, País y Burdeos, para el año 2009. Se trabajó con series históricas de precios nominales sacadas de ODEPA durante el periodo
Adasme Valenzuela, Jose Marcelo, Lobos Andrade, Germán (Prof. Guía), Moraga Quinteros, Juany Daniela   +2 more
core  

Synthesizing beaver coexistence messaging with the capability, opportunity, and motivation behavior model

Conservation Biology, EarlyView.
Abstract In the western United States, conservation practitioners are increasingly working with private landowners to restore habitat for North American beavers (Castor canadensis) and to use nonlethal mitigation techniques when beavers damage crops and infrastructure.
Brian D. Erickson, Megan S. Jones
wiley   +1 more source

Pronóstico de series de tiempo con tendencia y ciclo estacional usando el modelo airline y redes neuronales artificiales

Ingeniería y Ciencia, 2012
Muchas series de tiempo con tendencia y ciclos estacionales son exitosamente modeladas y pronosticadas usando el modelo airline de Box y Jenkins; sin embargo, la presencia de no linealidades en los datos son despreciadas por este modelo. En este artículo,
J D Velásquez, C J Franco
doaj   +1 more source

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

New Phytologist, EarlyView.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White, Jeannine Cavender‐Bares, Charles C. Davis, J. Antonio Guzmán Q., Shan Kothari, Jorge M. Robles, José Eduardo Meireles   +6 more
wiley   +1 more source

5. Series de tiempo

, 2020
Una serie temporal es un conjunto de medidas ordenadas a lo largo del tiempo de una variable de interés. Con las series de tiempo se analiza el comportamiento histórico de una variable a través de una función matemática. Se utilizan para pronosticar; no se hace análisis estructural.
Avila Quiñones, Cristian Orlando, Marques de Oliveira , Nilton   +1 more
openaire   +1 more source

Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion

Policy Studies Journal, EarlyView.
ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley   +1 more source

A Natural Language Processing Approach to Identifying Partisan Framing of Climate Change Denialism, Fatalism, and Solutions in US Congressional Speeches

Policy Studies Journal, EarlyView.
ABSTRACT This study examines the evolution of climate change discourse in the United States Congress from 1987 to 2017, employing natural language processing (NLP) techniques to analyze floor speeches. Using a la carte (ALC) word embeddings, we investigate how Democratic and Republican members of Congress frame climate change, focusing on denialist ...
Joseph Charles Van Matre, Isabel L. Krakoff, Allegra H. Fullerton   +2 more
wiley   +1 more source

Issue Attention in Public Opinion Polls: Pollsters as Agenda Responders and Agenda Setters

Policy Studies Journal, EarlyView.
ABSTRACT Polling organizations, like other policy actors, must prioritize certain issues. We argue that, for normative and financial reasons, pollsters prioritize issues that are viewed as important by other institutions and the public, leading them to focus survey questions on issues that are on congressional and media agendas, and which are public ...
Qian Zhang, Christopher Witko, Peter K. Enns   +2 more
wiley   +1 more source