Results 51 to 60 of about 31,679 (182)

Evaluación del éxito reproductivo de una especie amenazada: Senecio coincyi Rouy [PDF]

, 2009
Senecio coincy Rouy es una especie endémica de Ávila donde cuenta con 13 poblaciones. Incluida en la Lista Roja 2008 como VU y protegida en la comunidad de Castilla y León, como especie EN.
Martinez Garcia, Felipe
core  

Sex‐Specific Variation in Foraging Behavior is Related to Telomere Length in a Long‐Lived Seabird

Ecology and Evolution, Volume 14, Issue 12, December 2024.
Foraging during breeding is energetically demanding, intimately linked to breeding investment, and possibly constrained by individual condition. Telomere length, the protective nucleoproteins located at the ends of the chromosomes, is considered a trait reflecting somatic maintenance and individual quality. We found that brown booby females with longer
Mauricio Guillen‐Parra, Rocio Barcenas‐Flores, Alberto Velando, Anne Wiley, Bibiana Montoya, Roxana Torres   +5 more
wiley   +1 more source

A methodological workflow for quantitative colouration and colour pattern comparison reveals taxonomic and habitat‐level differences in the polymorphic fire salamander (Salamandra salamandra)

Journal of Zoology, Volume 324, Issue 1, Page 34-49, September 2024.
In this study, we use the urodele Salamandra salamandra as a study model to apply an analytical approach for extracting and quantifying colour proportions and patterns variation, using the recently developed R packages patternize and recolorize, to accurately describe and compare colour distribution at both taxonomic and habitat levels.
L. Alarcón‐Ríos, D. Álvarez, G. Velo‐Antón   +2 more
wiley   +1 more source

A plurality of morphological characters need not equate with phylogenetic accuracy: A rare genomic change refutes the placement of Solifugae and Pseudoscorpiones in Haplocnemata

Evolution &Development, Volume 26, Issue 4, July 2024.
Developmental transcriptomic data support an unduplicated genome in a solifuge, disfavoring the traditional grouping of pseudoscorpions and camel spiders as Haplocnemata. Abstract Recent advances in higher‐level invertebrate phylogeny have leveraged shared features of genomic architecture to resolve contentious nodes across the tree of life.
Guilherme Gainett, Benjamin C. Klementz, Emily V. W. Setton, Catalina Simian, Hernán A. Iuri, Gregory D. Edgecombe, Alfredo V. Peretti, Prashant P. Sharma   +7 more
wiley   +1 more source

Biología reproductiva en soporte de la conservación: Primera descripción de algunos estadios reproductivos del angelote chileno Squatina armata (Phillipi, 1987)

South Sustainability
En el Océano Pacífico Oriental (OPO) se ha descrito la presencia del angelote chileno Squatina armata, una especie altamente comercializada y consumida en el Perú.
Nelly Giannina Peña Cutimbo, Rosa Maria Cañedo Apolaya, Cristel Elena Cordero Maldonado, Adrian Custodio Uribe, Jeffrey Charles Mangel, Francisco Polanco Vásquez, Joanna Olga Gissella Alfaro Shigueto   +6 more
doaj   +1 more source

Assessing the reproductive consequences of mate retention and pair bond duration in Thorn‐tailed Rayadito (Aphrastura spinicauda), a short‐lived, socially monogamous neotropical bird

Ibis, Volume 166, Issue 2, Page 396-410, April 2024.
The adaptive value of mate retention has been studied in several socially monogamous birds but evidence of reproductive benefits for short‐lived species is inconclusive. Most studies come from northern latitudes but more research on tropical birds is needed, as these species typically show higher survival rates and longer pair bonds than those from ...
Esteban Botero‐Delgadillo, Rodrigo A. Vásquez, Bart Kempenaers   +2 more
wiley   +1 more source

Interacción de los nectarios extraflorales en inflorescencias de Leptospron adenanthum (Phaseolinae, Fabaceae) con hormigas visitantes

Boletín de la Sociedad Argentina de Botánica
Introducción y objetivos: Leptospron adenanthum tiene nectarios extraflorales (NEFs) activos en sus inflorescencias que atraen hormigas nectarívoras. Para caracterizar la interacción entre los NEFs de L.
Fabiana S. Ojeda, María Teresa Amela García   +1 more
doaj   +1 more source

Primer registro del colibrí cola pinta (Tilmatura dupontii, Trochilidae) en la Sierra Juárez, Oaxaca, México y algunas notas sobre su alimentación

Huitzil, 2012
Presentamos el primer registro del colibrí cola pinta (Tilmatura dupontii) en la Sierra Juárez, Oaxaca, México. En junio de 2010, observamos y fotografiamos una hembra de esta especie por cuatro días forrajeando sobre diez especies de plantas.
Román Díaz-Valenzuela, Fernando González-García, Rosa María Núñez   +2 more
doaj   +1 more source

Estado del conocimiento y nuevos aportes sobre la historia natural del Guacamayo Verde (Ara militares) [PDF]

, 2012
Fil: Juárez, Marcos. Facultad de Ciencias Naturales y Museo.Fil: Marateo, Germán. Facultad de Ciencias Naturales y Museo.Fil: Grilli, Pablo Gervasio. Facultad de Ciencias Naturales y Museo.Fil: Pagano, Luis Gerardo. Facultad de Ciencias Naturales y Museo.
Grilli, Pablo Gervasio, Juárez, Marcos, Marateo, Germán, Pagano, Luis Gerardo, Rumi, Mariano, Silva Croome, Marcelo   +5 more
core  

Nest‐site selection and reproductive success of a critically endangered parrot, the Great Green Macaw (Ara ambiguus), in an anthropogenic landscape

Ibis, Volume 166, Issue 2, Page 518-533, April 2024.
Nest‐site selection is the principal way in which secondary cavity‐nesting species mitigate the negative effects of factors such as predation, parasitism and exposure on reproductive success. Large‐bodied secondary cavity‐nesting birds rely on large cavities in mature trees that are often absent or reduced in anthropogenically disturbed forests. Hence,
Thomas C. Lewis, Ignacio Gutiérrez Vargas, Claire Vredenbregt, Mario Jimenez, Ben Hatchwell, Andrew P. Beckerman, Dylan Z. Childs   +6 more
wiley   +1 more source