Results 21 to 30 of about 311,498 (164)

Modelos de dinámica poblacional vía ecuaciones diferenciales estocásticas [PDF]

, 2020
En el presente trabajo, se analiza dos distintas ecuaciones diferenciales estocásticas que modelan la dinámica poblacional. Primeramente, se estudia la existencia, unicidad y estabilidad global de las soluciones positivas para una ecuación logística ...
Anco Blas, Edith Chavely
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Unexpected spatial aggregation between two species of hummingbirds and their inconsistent spatial interactions with native and exotic plants in an urban ecological reserve

Ibis, Volume 167, Issue 4, Page 927-944, October 2025.
Hummingbirds play an important role as pollinators and are one of the primary examples of animal–plant coevolution. However, factors such as land‐use change, urbanization, exotic species introductions and the disappearance of native plants can negatively affect the persistence of hummingbird populations.
Gonzalo A. Ramírez‐Cruz, Israel Solano‐Zavaleta, J. Jaime Zúñiga‐Vega, P. Montserrat Vilchis‐Domínguez, Mariana Palencia‐Martínez   +4 more
wiley   +1 more source

Demographic performance review of a reintroduction project: Iberian lynx in Extremadura

Journal of Applied Ecology, Volume 62, Issue 9, Page 2189-2201, September 2025.
Demographic performance reviews are essential for understanding the drivers of population growth and for evaluating the outcomes of reintroduction initiatives. IPMs as exemplified by our Iberian lynx case study provide a powerful and flexible framework for quantifying reintroduction performance and addressing key research and management questions.
José Jiménez, Matías Taborda, Pablo Ferreras, Maria Jesús Palacios, Fernando Nájera, Jorge Peña, Marc Kéry, Michael Schaub   +7 more
wiley   +1 more source

Dinámica poblacional de los municipios del Tolima 1951-2005 [PDF]

, 2015
Tomando como punto de partida la importancia que en elpasado tuvieron los estudios de población y la evidencia demasivos fenómenos de migración interna y externa en laColombia de nuestros días, el presente artículo se centra en elexamen de la dinámica ...
Dulcey Martínez, Germán Ricardo
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Mediterranean octocoral populations exposed to marine heatwaves are less resilient to disturbances

Journal of Animal Ecology, Volume 94, Issue 8, Page 1528-1541, August 2025.
We demonstrate that marine heat waves decrease the resilience of Mediterranean octocorals to further disturbances. Abstract The effects of climate change are now more pervasive than ever. Marine ecosystems have been particularly impacted by climate change, with marine heatwaves (MHWs) being a strong driver of mass mortality events.
Pol Capdevila, Yanis Zentner, Graciel·la Rovira, Joaquim Garrabou, Alba Medrano, Cristina Linares   +5 more
wiley   +1 more source

El enfoque de Orientación Cognitiva al Desempeño Ocupacional Diario en discapacidades con origen en la infancia

Developmental Medicine &Child Neurology, Volume 67, Issue 8, Page e119-e128, August 2025.
El enfoque de Orientación Cognitiva al Desempeño Ocupacional Diario (Cognitive Orientation to daily Occupational Performance en inglés o CO‐OP), es una intervención orientada a objetivos centrada en la participación. Diseñada para mejorar el desempeño abordando objetivos personales importantes para los niños y sus familias. Con sus orígenes en 2001, el
Hortensia Gimeno, Helene Polatajko
wiley   +1 more source

Salivary/Serum Progesterone Ratio Differs Between Menstrual Cycle Phases but Not Between Populations: Implications for Health, Reproductive, and Behavioral Research

American Journal of Human Biology, Volume 37, Issue 7, July 2025.
Scatterplot of paired measurements of PFree‐SAL (y‐axis, log scale) versus PTotal‐VEN (x‐axis, log scale) for each of our 36 Bolivian study participants. Dotted diagonals represent lines of constant uptake fraction (UF = PFree‐SAL/PTotal‐VEN) from 0.2% to 100%. The solid red line represents the linear regression model for luteal phase pairs (red dots),
Virginia J. Vitzthum, Diva Bellido, Lourdes Echalar, Esperanza Caceres, Jonathan Thornburg   +4 more
wiley   +1 more source

La dinámica vincular celos-infidelidad [PDF]

, 2011
En el conflicto celos-infidelidad subyacen motivaciones intrapsíquicas tan fuertes como el temor de pérdida del objeto, necesidades de satisfacciones narcisistas, búsqueda de la diferenciación y relaciones de poder. Lo que comparten, tanto el celoso como
Jorge Humberto Vanegas Osorio, Vanegas Osorio, Jorge Humberto   +1 more
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Mutational load and adaptive variation are shaped by climate and species range dynamics in Vitis arizonica

New Phytologist, Volume 247, Issue 2, Page 998-1014, July 2025.
Summary Genetic load can reduce fitness and hinder adaptation. While its genetic underpinnings are well established, the influence of environmental variation on genetic load is less well characterized, as is the relationship between genetic load and putatively adaptive genetic variation.
Christopher J. Fiscus, Jonás A. Aguirre‐Liguori, Garren R. J. Gaut, Brandon S. Gaut   +3 more
wiley   +1 more source

Dinámica poblacional y bifurcaciones de Hopf

, 2020
RESUMEN: Uno de los objetivos de este trabajo es analizar un modelo de dinámica poblacional, más específicamente, un modelo predador-presa que exhibe la bifurcación Hopf.
Quintero Mejía, Alejandro
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