Results 81 to 90 of about 82,371 (292)

A fully automated heart frequency logger for shelled invertebrates and associated data processing R package

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Measuring cardiac frequency provides a non‐invasive approach to quantifying sublethal stress responses of invertebrates to environmental stressors, such as heat stress. Existing cardiac monitoring methods rely on limited‐performance hardware, and data processing is still largely manual or semi‐automated.
Fernando P. Lima   +4 more
wiley   +1 more source

Benthic bioturbations weaken the stability of blue carbon storage

open access: yesNational Science Open
Coastal ecosystems are known for their ability to sequester organic carbon (OC), termed “blue carbon”. The molecular composition of dissolved organic matter (DOM) can affect sediment OC content; however, the impact of benthic bioturbation on DOM ...
Huang Yingrong   +17 more
doaj   +1 more source

Unidirectional Optomotor Responses and Eye Dominance in Two Species of Crabs

open access: yesFrontiers in Physiology, 2019
Animals, from invertebrates to humans, stabilize the panoramic optic flow through compensatory movements of the eyes, the head or the whole body, a behavior known as optomotor response (OR).
Yair Barnatan   +4 more
doaj   +1 more source

Crushing and Cutting: Shape Variation and Morphological Integration Between the Claws of Two Swimming Crab Species (Brachyura: Portunidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT This study investigated shape variations and morphological integration between the components of crusher and cutter claws in two species of swimming crabs, Callinectes danae and Callinectes ornatus. The propodi and dactyli of the claws were analysed in males and females of both species, using geometric morphometric techniques to identify ...
Julia Tadiotto   +4 more
wiley   +1 more source

Contrasting Patterns of Clinal Genetic Diversity and Potential Colonization Pathways in Two Species of Western Atlantic Fiddler Crabs. [PDF]

open access: yesPLoS ONE, 2016
Fiddler crabs (Brachyura, Ocypodidae), like many other marine organisms, disperse via planktonic larvae. A lengthy pelagic larval duration is generally assumed to result in genetic connectivity even among distant populations.
Claudia Laurenzano   +2 more
doaj   +1 more source

Up and away: ontogenic transference as a pathway for aerial dispersal of microplastics [PDF]

open access: yes, 2018
Microplastics (MPs) are ubiquitous pollutants found in marine, freshwater and terrestrial ecosystems. With so many MPs in aquatic systems it is inevitable that they will be ingested by aquatic organisms, and be transferred up through the food chain ...
Amanda Callaghan   +7 more
core   +2 more sources

Close encounters of the friendly kind: pacific between‐group interactions in primates

open access: yesBiological Reviews, EarlyView.
ABSTRACT While intergroup conflict features prominently in the behavioural ecology literature, its antonym, intergroup peace, has been a rather neglected phenomenon until recently. Neighbourly relations and affiliative interactions are far from uncommon.
Cyril C. Grueter, Luca Pozzi
wiley   +1 more source

Relative growth of Uca burgersi (Crustacea, Ocypodidae) from two mangroves in the southeastern Brazilian coast

open access: yesIheringia: Série Zoologia, 2004
The relative growth of the fiddler crab Uca burgersi Holthuis, 1967 was analyzed in two populations from different mangroves (Ubatumirim and Cavalo rivers) in the southeastern Brazilian coast, monthly sampled from May, 2001 to April, 2002. The population
Aline Staskowian Benetti   +1 more
doaj   +1 more source

'Selfish herds' of guppies follow complex movement rules, but not when information is limited [PDF]

open access: yes, 2015
Under the threat of predation, animals can decrease their level of risk by moving towards other individuals to form compact groups. A significant body of theoretical work has proposed multiple movement rules, varying in complexity, which might underlie ...
Kimbell, Helen S., Morrell, Lesley J.
core   +2 more sources

Evaluating the potential impact of bird predation on the SW Atlantic fiddler crab Leptuca uruguayensis

open access: yesHelgoland Marine Research, 2019
The southernmost permanent population of the fiddler crab Leptuca uruguayensis occurs along the Samborombón Bay (36°22′S, 56°45′W, Argentina), an important feeding site for many bird species, including ruddy turnstones (Arenaria interpres), whimbrels ...
P. Ribeiro   +4 more
semanticscholar   +1 more source

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