Results 61 to 70 of about 128,283 (185)
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
V. Warwick‐Evans +3 more
wiley +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
International Journal of Endocrinology, 2022 Obesity is a condition that has been linked to male infertility. The current hypothesis regarding the cause of infertility is that sperm are highly sensitive to reactive oxygen species (ROS) during spermatogenesis in the testes and transit through the ...
Lorena Ruiz-Valderrama +10 more
doaj +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
World Medical &Health Policy, Volume 17, Issue 4, Page 688-694, December 2025.ABSTRACT The study by Morshed‐Behbahani et al. highlights that financial barriers are not the sole obstacle to accessing infertility treatment. To ensure equal access for all, infertility treatment should be regarded as a universal human right, with the public sector assuming responsibility for its provision.
Arturs Kalva, Girts Brigis
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 +3 more
doaj +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
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Wildlife Society Bulletin, Volume 49, Issue 4, December 2025.We assessed the acceptability and consumption of a custom‐developed nicarbazin bait for feral pigeons, inferred its contraceptive efficacy, and evaluated the reversibility of its effects upon cessation of treatment. Only feral pigeons consumed the bait, except for one eared dove that also ingested the food. Continuous administration of this bait raised
Joaquín L. Navarro +7 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. +3 more
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Conservation Science and Practice, Volume 7, Issue 12, December 2025.Compared to playback surveys, passive acoustic monitoring provides increased detection probability and lower costs for monitoring a rare and cryptic avian species. Abstract Monitoring rare and cryptic species presents unique challenges and is of high importance for conservation practitioners.
Anna M. Kurtin +8 more
wiley +1 more source