klassifizierung-diabetischer-retinopathie-mit-vortrainierten-deep-learning-modellen

데이터-웨어하우스에서-다중-목적-유전-알고리즘을-이용한-물질화된-뷰-최적화

optimizing-deep-learning-performance-through-comprehensive-randomization-techniques

genetischer-algorithmus-zur-mehrkriteriellen-optimierung-von-materialisierten-sichten-in-data-warehouses

既知を超えて-オープンワールドグラフ学習のための新規クラス発見

ℓ-ノルムにおける収縮写像の固定点を多項式クエリで計算する

실수-공간에서-수축-사상의-고정점을-다항식-쿼리로-계산하기

craftsの深層学習を用いたhi源の自動識別と分割


夜行性のアリは、月光の偏光パターンを使って夜間の帰巣を行う。


coremsg

For the first time in any animal, we show that nocturnal bull ants use the exceedingly dim polarisation pattern produced by the moon for overnight navigation. The sun or moon can provide directional information via their position; however, they can often be obstructed by clouds, canopy or the horizon. Despite being hidden, these bodies can still provide compass information through the polarised light pattern they produce/reflect. Sunlight produces polarised light patterns across the overhead sky as it enters the atmosphere, and solar polarised light is a well-known compass cue for navigating animals. Moonlight produces an analogous pattern, albeit a million times dimmer than sunlight. Here we show the first evidence that polarised moonlight forms part of the celestial compass of navigating nocturnal ants. Nocturnal bull ants leave their nest at twilight and rely heavily on the overhead solar polarisation pattern to navigate. Yet many foragers return home overnight when the sun cannot guide them. We demonstrate that these bull ants use polarised moonlight to navigate home during the night, by rotating the ambient polarisation pattern above homing ants, who alter their headings in response. Furthermore, these ants can detect this cue throughout the lunar month, even under crescent moons, when polarised light levels are at their lowest. Finally, we show long-term incorporation of this moonlight pattern into the ants’ path integration system throughout the night for homing, as polarised sunlight is incorporated throughout the day.

### Competing Interest Statement

The authors have declared no competing interest.

月光偏光パターンが夜行性のアリの帰巣を導く