Results 61 to 70 of about 128,093 (187)

Histological and Gene Expression Analyses of the Arm and Finger Macroglands of Two Hyloxalus Frogs (Dendrobatidae)

Molecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Diana Abondano Almeida, Marvin Anganoy‐Criollo, Taran Grant, Sofiia Klimovych, Lisa M. Schulte   +4 more
wiley   +1 more source

Mantenimiento simultáneo del dimorfismo sexual y la condición hermafrodita en plantas. Un caso típico de selección negativa dependiente de la frecuencia [PDF]

, 2015
Las plantas con flor presentan sistemas de reproducción muy variados, con adaptaciones aparentes para su funcionamiento. No sorprende que hayan atraído el interés de los evolucionistas desde antiguo generando literatura de gran impacto, por ejemplo, en ...
Arroyo Marín, Juan
core  

Salty suitors: High larval sodium intake reduces adult lifespan and influences reproductive behaviour in a lepidopteran herbivore

Ecological Entomology, Volume 50, Issue 5, Page 886-898, October 2025.
Low‐sodium females took significantly longer to start mating than high‐sodium females, but no pairings differed in the duration of copulation. Reproductive outputs, measured by number of clutches, hatching young, adult offspring and pupation time, did not differ across parental sodium pairings.
Maggie C. Vincent, Ana L. Salgado, Luis Y. Santiago‐Rosario, Kyle E. Harms   +3 more
wiley   +1 more source

Hypoosmotic Test Combined with Coomassie Blue Staining in Llama Sperm [PDF]

SPERMOVA, 2018
To stablish sperm fertilization capacity membrane integrity and functionality are important characteristics to determine. The objectives of the present study were: 1) to evaluate the functionality of the plasma membrane over time by the hypoosmotic test (
M,I, Carretero, C. Pigretti, M. Bertuzzi , F. Fumuso   +3 more
doaj   +1 more source

Semblanzas Ictiológicas: Matías Pandolfi [PDF]

, 2013
través de esta serie intentaremos conocer diferentes facetas personales de los integrantes de nuestra “comunidad”. El cuestionario, además de su principal objetivo, con sus respuestas quizás nos ayude a encontrar entre nosotros puntos en común que vayan
López, Hugo Luis, Ponte Gómez, Justina
core   +2 more sources

Environmental and Geographic Conditions on the Breeding Grounds Drive Bergmannian Clines in Nightjars

Journal of Biogeography, Volume 52, Issue 10, October 2025.
ABSTRACT Aim To evaluate (1) whether three migratory nightjar species (Family Caprimulgidae) adhere to Bergmann's rule, (2) whether environmental factors on the breeding or wintering grounds determine body size, and (3) which mechanistic hypotheses best explain Bergmannian patterns in body size.
Aaron A. Skinner, Alicia M. Korpach, Susanne Åkesson, Marja H. Bakermans, Erin M. Bayne, Thomas J. Benson, Giovanni Boano, R. Mark Brigham, Simon S. Christiansen, Greg J. Conway, Christina M. Davy, Ruben Evens, Kevin C. Fraser, Autumn‐Lynn Harrison, Anders Hedenström, Ian G. Henderson, Juha Honkala, Lars B. Jacobsen, Michiel Lathouwers, Peter P. Marra, Janet W. Ng, Gabriel Norevik, Amy L. Scarpignato, Kasper Thorup, Christopher M. Tonra, Steven L. Van Wilgenburg, Andrew C. Vitz, Michael Ward, Elly Knight   +28 more
wiley   +1 more source

Offspring sex ratio of introduced red deer in Patagonia, Argentina after an intensive drought [PDF]

, 2001
Red deer (Cervus elaphus) introduced to Patagonia have reached high densities in the forest-steppe ecotone. Drought conditions during 1998/99 were suspected to impact subsequent reproductive performance.
Fluck, Werner Thomas
core  

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

Water‐saving strategies in rice farming entail cascading effects in prey–predator interactions across ecosystem boundaries

Journal of Applied Ecology, Volume 62, Issue 9, Page 2273-2282, September 2025.
These results show that introducing multiple drainage periods in rice fields (i.e. AWD) indirectly hampers terrestrial spider reproduction through limiting the emergence of potential preys from the aquatic to terrestrial boundaries. MSD resulted in a more conciliatory strategy as it largely reduces methane emissions and does not affect predator–prey ...
Néstor Pérez‐Méndez, Gabriel Pompozzi, Maite Martínez‐Eixarch, Raül Llevat, Mar Catala‐Forner, Hugo J. Marrero   +5 more
wiley   +1 more source

Rythme nycthéméral de la sécrétion de mélatonine chez le dromadaire (Camelus dromedarius) [PDF]

, 1997
La mélatonine, une hormone secrétée par la glande pinéale, a été dosée sur trois chamelles vivant dans le Sud de la France. Comme pour les autres espèces domestiques, les résultats montrent qu'il existe un rythme nycthéméral de la sécrétion de cette ...
Chemineau, P., Faye, Bernard, Ravault, J.P., Vyas, Sumant   +3 more
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