Results 111 to 120 of about 82,371 (292)

Circatidal and Circadian Rhythms of Locomotion in Limulus polyphemus [PDF]

open access: yes, 2004
The nocturnal increases in the sensitivity of the lateral eye of Limulus polyphemus, the species of horseshoe crab found along the Atlantic coast, have been firmly established as being controlled by an endogenous circadian clock (1,2,3) located in the ...
Chabot, Christopher C.   +2 more
core   +2 more sources

Hydrological repair and invasive grass removal restore Rhizophora racemosa mangrove communities in West Africa

open access: yesRestoration Ecology, Volume 33, Issue 7, September 2025.
Mangrove ecosystems face significant threats from climate change and human activities. In West Benin, the invasive grass Paspalum vaginatum disrupts sedimentation and hydrology, creating anoxic conditions and nutrient imbalances. To address this, we implemented a cost‐effective restoration strategy focused on hydrological repair, engaging local ...
Claudia M. Agraz Hernández   +8 more
wiley   +1 more source

THE VISUAL ACUITY OF THE FIDDLER-CRAB, UCA PUGNAX [PDF]

open access: yesJournal of General Physiology, 1935
The visual acuity of the fiddler-crab can be measured at various illuminations by means of its response to a moving visual pattern. The method, although similar to that used by Hecht and Wolf for the bee and Hecht and Wald for Drosophila, must be modified to give consistent results.
openaire   +3 more sources

Self‐Aligned Waveguide Array Integrated with Flat Microlenses for Environment‐Adaptive and High‐Resolution Compound Eye Vision

open access: yesAdvanced Optical Materials, Volume 13, Issue 22, August 5, 2025.
For an amphibious high‐resolution compound eye vision system, environment‐adaptive self‐aligned waveguides are integrated with high‐density flat microlenses. Fabrication, optical performance, and environmental adaptability are investigated, demonstrating stable focusing, efficient light collection, and enhanced spatial resolution.
Hyuk Jae Jang   +4 more
wiley   +1 more source

Density-dependent effect on reproductive behaviour of Lysmata amboinensis and L. boggessi (Decapoda: Caridea: Hippolytidae) [PDF]

open access: yes, 2007
We compared the reproductive behaviours of two protandric simultaneous hermaphroditic species (Lysmata amboinensis and L. boggessi) that belong to two groups of Lysmata shrimp with different morphology, geographical distribution, and density.
Lin, Junda   +2 more
core   +1 more source

Growling from the gut: co-option of the gastric mill for acoustic communication in ghost crabs. [PDF]

open access: yes, 2019
Animal acoustic communication systems can be built upon co-opted structures that become specialized for sound production or morphological novelties. The ghost crab, Ocypode quadrata, evolved a novel stridulation apparatus on the claws that is used during
deVries, Maya S   +2 more
core   +1 more source

Courtship herding in the fiddler crab Uca elegans

open access: yesJournal of Comparative Physiology A, 2008
Male and female animals are not always complicit during reproduction, giving rise to coercion. One example of a system that is assumed to involve sexual coercion is the mate herding behaviour of fiddler crabs: males push females towards the home burrow with the goal of forcing copulation at the burrow entrance.
How, Martin J., Hemmi, Jan M.
openaire   +4 more sources

A fisher's perspective: Using half a century of local fisher knowledge to identify socio‐economic, ecological and legislative trends influencing angelshark (Squatina squatina) records in Wales

open access: yesPeople and Nature, Volume 7, Issue 7, Page 1536-1558, July 2025.
Abstract The evolution of marine fisheries has broadly influenced the ecology, distribution and abundance of coastal elasmobranchs. However, quantifying these interactions remains a challenge due to the scarcity of historical records. Fishers' local ecological knowledge (LEK) is an essential tool in fisheries research, providing an avenue to regain ...
Francesca C. Mason   +17 more
wiley   +1 more source

Fiddler crabs from highly disturbed beaches are more sensitive to human presence [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The presence of humans frequently modifies the behavior of animals, particularly their foraging patterns, compromising energetic demands. The fiddler crab Leptuca leptodactyla inhabits mangroves with high degrees of anthropogenic influence.
GABRIEL B. RODRIGUEZ   +3 more
doaj   +1 more source

Do lifetime contest costs affect the evolution of assessment strategies? A meta‐analysis

open access: yesJournal of Animal Ecology, Volume 94, Issue 7, Page 1335-1345, July 2025.
Our meta‐analysis reveals unexpected patterns in the evolution of assessment strategies during animal contests. We show that self‐assessment dominates in high‐cost fights, challenging existing theories. This study provides novel insights into the link between fighting costs and behavioural evolution, with implications for understanding fitness ...
Clara Massote   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy