Increase in protandry over time in a long-distance migratory bird [PDF]
Ecology and Evolution, 2022 Protandry is a widespread life‐history phenomenon describing how males precede females at the site or state of reproduction. In migratory birds, protandry has an important influence on individual fitness, the migratory syndrome, and phenological response
Johanna Hedlund +2 more
exaly +5 more sources
Temporal Dynamics of Nectar and Pollen Production in Protandrous Flowers of Nigella damascena [PDF]
PlantsThis study examined nectar and pollen production as well as pollinator visitation in Nigella damascena (Ranunculaceae), an annual ornamental and seed crop, over two flowering seasons.
Zuzanna Łabęcka +2 more
doaj +2 more sources
Autumn protogyny and spring protandry: Mechanisms and adaptive significance in a Japanese headwater frog, Rana sakuraii. [PDF]
PLoS ONEIn temperate-zone vertebrates, almost all studies on protandry and protogyny are based on spring breeding migrations or breeding sites and are discussed in terms of the advantages for pairing.
Tokio Miwa
doaj +2 more sources
The Influence of Winter and Spring Large-Scale Climate Patterns on the Timing of Male and Female Blackcap Spring Passage at the Baltic Coast [PDF]
BiologySex-specific adjustments of bird migration phenology to climate change are understudied. We analysed blackcap migration timing using spring (26 March–16 May) ringing data from Bukowo–Kopań (N Poland) in 1982–2025. We assessed the influence of large-scale
Agata Pinszke, Magdalena Remisiewicz
doaj +2 more sources
Seasonal and daily protandry in a cyprinid fish [PDF]
Scientific Reports, 2017 In polygynandrous mating systems, in which females limit reproductive success, males can increase their success by investing in courtship. Earlier arrival at the spawning ground compared to when females arrive may increase their opportunities in ...
Marek Šmejkal +10 more
doaj +3 more sources
Life History of the Giant Looper Moth Ascotis selenaria (Lepidoptera: Geometridae) in Eucalyptus Plantations and the Effect of Adult Mating Age on Fecundity [PDF]
BiologyAscotis selenaria has recently shifted hosts to become a major defoliator in Southern China’s eucalyptus plantations. To facilitate Integrated Pest Management (IPM), we investigated the genetic origins, life history, and reproductive bio-ecology of this ...
Shuai Yuan +6 more
doaj +2 more sources
Hormonal influence on photocontrol of the protandry in the genus Helianthus [PDF]
Journal of Experimental Botany, 2000 Under natural photoperiodic conditions protandry in hermaphrodite disc flowers of sunflower (Helianthus annuus L.) is determined by the different elongation rates of the style and filaments. The elongation of the filament and style starts simultaneously after the daily dark period, but the style growth rate is slower.
G Lobello +4 more
exaly +6 more sources
Evolutionary trade-offs in dormancy phenology [PDF]
eLifeSeasonal animal dormancy is widely interpreted as a physiological response for surviving energetic challenges during the harshest times of the year (the physiological constraint hypothesis).
Théo Constant +3 more
doaj +2 more sources
Mosquito sex separation using complementation of selectable traits and engineered neo-sex chromosomes [PDF]
Nature CommunicationsEffective sex separation remains a critical challenge for mosquito genetic control. Genetic sexing strains (GSS) address this by linking maleness with selectable traits, enabling efficient female removal.
Doron S. Y. Zaada +10 more
doaj +2 more sources
Different ecological demands shape differences in population structure and behaviour among the two generations of the small pearl-bordered fritillary [PDF]
PeerJThe population structure and behaviour of univoltine butterfly species have been studied intensively. However, much less is known about bivoltine species.
Ann-Kathrin Sing +5 more
doaj +3 more sources