O brother, where art thou? Investment in siblings for inclusive fitness benefits, not father absence, predicts earlier age at menarche

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O brother, where art thou? Investment in siblings for inclusive fitness benefits, not father absence, predicts earlier age at menarche

Numerous studies have indicated that father absence is associated with earlier age at menarche, with many evolutionary theories assuming that father absence is a causal factor that accelerates reproductive development. However, an alternative interpretation suggests that offspring may reproduce earlier in the presence of half- or step-siblings as the indirect fitness benefits to investing in th...

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Correction to 'O brother, where art thou? Investment in siblings for inclusive fitness benefits, not father absence, predicts earlier age at menarche'.

Biol. Lett. 13, 20170464. (Published online 18 October 2017) (doi:10.1098/rsbl. 2017.0464) Please note that an error was unfortunately introduced in table 1 during the proof-reading of this article [1]. At the end of the legend of table 1 the text should read ‘p-value codes: , 0.1; *, 0.05; **, 0.01; ***, 0.001’, rather than ‘p-value codes: , 0.1; **, 0.05; ***, 0.01; , 0.001’ as currently stat...

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O Brother, Where Art Thou? We Need Your Help

I generalize a model of children strategizing where to live by Konrad et al. (2002) (KKLR) to include more variation in family size and to allow for uncertainty in how each family member behaves. The inclusion of uncertainty has large effects on the predictions of a KKLR-type model. I find that the KKLR model does not explain American data well, but an alternative model with the same reduced fo...

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O fly, where art thou?

In this paper, the design of a real-time image acquisition system for tracking the movement of Drosophila in three-dimensional space is presented. The system uses three calibrated and synchronized cameras to detect multiple flies and integrates the detected fly silhouettes to construct the three-dimensional visual hull models of each fly. We used an extended Kalman filter to estimate the state ...

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O brother, where art thou? The fraternal birth-order effect on male sexual orientation.

S igmund Freud has a lot to answer for. As the 20th century began, he convinced medical professionals that abnormal family relationships caused children to develop a homosexual orientation, which could be ‘‘cured’’ by psychoanalysis. Not until the 1970s would psychiatric and psychological associations finally repudiate this idea that gay people have any illness that needs treating. Since then, ...

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ژورنال

عنوان ژورنال: Biology Letters

سال: 2017

ISSN: 1744-9561,1744-957X

DOI: 10.1098/rsbl.2017.0464