Results 1 to 10 of about 3,096 (199)

Increase in protandry over time in a long‐distance migratory bird [PDF]

open access: yesEcology 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   +4 more
doaj   +4 more sources

Exploring protandry and pupal size selection for Aedes albopictus sex separation [PDF]

open access: yesParasites & Vectors, 2018
Background We explored the possibility to improve male/female separation (sexing) in Aedes albopictus by selection of two strains, one toward increasing sex dimorphism and another toward increasing protandry.
Romeo Bellini   +4 more
doaj   +7 more sources

Temporal Dynamics of Nectar and Pollen Production in Protandrous Flowers of Nigella damascena [PDF]

open access: yesPlants
This 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

Life History of the Giant Looper Moth Ascotis selenaria (Lepidoptera: Geometridae) in Eucalyptus Plantations and the Effect of Adult Mating Age on Fecundity [PDF]

open access: yesBiology
Ascotis 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

Evolutionary trade-offs in dormancy phenology [PDF]

open access: yeseLife
Seasonal 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

Different ecological demands shape differences in population structure and behaviour among the two generations of the small pearl-bordered fritillary [PDF]

open access: yesPeerJ
The 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

Mosquito sex separation using complementation of selectable traits and engineered neo-sex chromosomes [PDF]

open access: yesNature Communications
Effective 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

Coping with Environmental Extremes: Population Ecology and Behavioural Adaptation of Erebia pronoe, an Alpine Butterfly Species [PDF]

open access: yesInsects, 2021
A mark-recapture study of the nominotypical Erebia pronoe in the Alps was conducted to survey its ecological demands and characteristics. Population structure analysis revealed a combination of protandry (one-week earlier eclosion of males) and serial ...
Martin Wendt   +3 more
doaj   +2 more sources

Protandric Transcriptomes to Uncover Parts of the Crustacean Sex-Differentiation Puzzle

open access: yesFrontiers in Marine Science, 2021
Hermaphrodite systems offer unique opportunities to study sexual differentiation, due to their high degree of sexual plasticity and to the fact that, unlike gonochoristic systems, the process is not confined to an early developmental stage. In protandric
Tom Levy   +12 more
doaj   +1 more source

Innate sex differences in the timing of spring migration in a songbird. [PDF]

open access: yesPLoS ONE, 2012
In migrating animals protandry is the phenomenon whereby males of a species arrive at the breeding grounds earlier than females. In the present study we investigated the proximate causes of protandry in a migratory songbird, the northern wheatear ...
Ivan Maggini, Franz Bairlein
doaj   +1 more source

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