Results 21 to 30 of about 1,101 (138)

When is the bait worth the risk? A mechanistic model of a compensatory ecological trap in seabirds

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological traps occur when organisms preferentially select habitats that reduce fitness. In seabird–fishery systems, fishery‐derived trophic subsidies can increase foraging success, reinforce habitat preference and indirectly enhance reproductive output or recruitment,
Cristóbal Anguita, Alejandro Simeone, Cristián F. Estades   +2 more
wiley   +1 more source

Early‐life environment drives long‐term decrease in adult body mass in a wild bird population

Journal of Animal Ecology, EarlyView.
Using more than 90,000 body mass measures of adult and nestling great tits Parus major, we show that the 1 SD decline in adult mass between 1978 and 2024 is a consequence of changes in the environment (i.e. increase in population density) experienced at early life.
David López‐Idiáquez, Ella F. Cole, Devi Satarkar, Samuel J. Crofts, Keith McMahon, Ben C. Sheldon   +5 more
wiley   +1 more source

When and why to give shorebirds a head start

Conservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson, Alex Nicol‐Harper, Rebecca Lee, Nigel S. Jarrett, Geoff M. Hilton   +4 more
wiley   +1 more source

Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica

Ibis, EarlyView.
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde, Natalie V. Sánchez, Manuel Spínola, Gerardo Avalos   +3 more
wiley   +1 more source

The MexMAGIC population reveals the genetic architecture of traits exhibiting clinal variation in Mexican native maize

New Phytologist, Volume 252, Issue 3, Page 1296-1313, November 2026.
The MexMAGIC population mixes native maize varieties from across Mexico to study functional genetic diversity. Summary Defining the genetic basis of local adaptation is a key goal of evolutionary biology and crop improvement. Theory predicts that when selective pressures follow differences in the environment, a cline will be established.
Sergio Perez‐Limón, Ana Laura Alonso‐Nieves, M. Rosario Ramírez‐Flores, G. Carolina Cintora‐Martínez, M. Nancy Salazar‐Vidal, Jorge Vladimir Torres‐Rodriguez, Jessica Carcaño‐Macías, Melanie G. Perryman, Oliver H. S. Paulson, Jagdeep S. Sidhu, Peng Yu, Victor Llaca, Kevin A. Fengler, Forrest Li, Daniel E. Runcie, Jeffrey Ross‐Ibarra, C. Stewart Gillmor, Rubén Rellán‐Álvarez, Ruairidh J. H. Sawers   +18 more
wiley   +1 more source

Mosquito population dynamics are shaped by interactions among larval density, temperature, and relative humidity

Ecology, Volume 107, Issue 10, October 2026.
Abstract Understanding how variation in key abiotic and biotic factors interact at ecologically relevant spatial scales is crucial for predicting population dynamics, distributions, and abundances. This is especially true for vectors that transmit human pathogens.
Nicole Solano, Emily C. Herring, Carl W. Hintz, Philip M. Newberry, Annakate M. Schatz, Joseph W. Walker, Gregory R. Jacobs, Craig W. Osenberg, Courtney C. Murdock   +8 more
wiley   +1 more source

Variación fenotípica de una muestra de maíces de la región de Chalcatongo de Hidalgo, Oaxaca

Ciencia Ergo Sum, 2012
A fin de evaluar la variabilidad morfológica fenotípica de una muestra de maíces de la Mixteca oaxaqueña, se realizó una colecta de 50 muestras poblacionales en cinco municipios de la región de Chalcatongo, Oaxaca.
José Luis Chávez-Servia, Prisciliano Diego-Flores, José Cruz Carrillo-Rodríguez   +2 more
doaj  

Environmental DNA succeeds in detecting a low‐density population of endangered harlequin frogs

Conservation Science and Practice, Volume 8, Issue 10, October 2026.
This work evaluates the use of environmental DNA (eDNA) to detect the Critically Endangered Jambato Harlequin Frog (Atelopus ignescens)—an iconic species once thought extinct and now known only from a single locality in the Ecuadorian Andes. Our study demonstrates the effectiveness of eDNA in detecting the Jambato in a low‐density amphibian population,
Mónica I. Páez‐Vacas, Sofía Carvajal‐Endara, Natasha Baer, Christine E. Edwards, Rachel Brant, Gabriela Maldonado‐Castro, William Millingalli, Kyle E. Jaynes, Sarah W. Fitzpatrick, Mateo A. Vega‐Yánez, Amanda B. Quezada‐Riera, María del Carmen Vizcaíno‐Barba, Juan M. Guayasamin, Andrea Terán‐Valdez, Luis A. Coloma   +14 more
wiley   +1 more source

The determinants of the health status in a developing country: results from the Colombian case

Lecturas de Economía, 2010
El documento encuentra evidencia empírica sobre los determinantes del estado de salud en Colombia, después de la reforma de 1993. El artículo usa la teoría de Grossman y analiza, además de características individuales y socioeconómicas, variables ...
Juan Miguel Gallego, Manuel Ramírez, Carlos Sepúlveda   +2 more
doaj   +1 more source

Movilidad humana: venezolanos en Cúcuta y villa del rosario, su satisfacción en el territorio

Semestre Económico, 2020
Este trabajo pretende contribuir al conocimiento de las nuevas dinámicas de la movilidad de los grupos poblacionales de venezolanos que llegan a Cúcuta y Villa del Rosario.
Mario de Jesus Zambrano Miranda, Diana Carolina Galvis Rodríguez, Olga Marina Sierra De Rodríguez, Claudia Elizabeth Toloza Martínez   +3 more
doaj   +1 more source