Results 141 to 150 of about 189,841 (285)

Decryption of Amphipod Cryptic Species: Ecological Differentiation of Syntopic Lineages of a Gammarus Species Complex

open access: yesFreshwater Biology, Volume 70, Issue 7, July 2025.
ABSTRACT Cryptic species represent an ever‐increasing proportion of discovered biological diversity. Thus, the number of observations of cryptic species co‐occurring in syntopy also increases, raising the question of mechanisms facilitating this phenomenon.
Pavel Karel Bystřický   +12 more
wiley   +1 more source

External morphology of the first and second instars of Lecanodiaspis tingtunensis (Coccoidea: Lecanodiaspididae) [PDF]

open access: yes, 2003
The first and second instars of Lecanodiaspis tingtunensis are described and illustrated. First instars are distinguished from other species of Lecanodiaspis by the arrangement of dorsal 8-shaped pores in six complete longitudinal rows and a partial row ...
Lambdin, P. L., Podsiadlo, Elzbieta
core  

Coloration in Argia damselflies of Central Mexico responds to changes in herbaceous vegetation La coloración de caballitos del diablo del género Argia responde a cambios en la cobertura de vegetación herbácea en el Centro de México

open access: yesInsect Conservation and Diversity, Volume 18, Issue 4, Page 593-603, July 2025.
The increase in urban lands and the vegetation loss implies changes in the colour of the background which in turn could cause changes in the coloration of individuals. We measured changes in body lightness of damselflies through 19 sites in Central Mexico, with a different degree of urbanisation and a different percentage of native vegetation. We found
Teresa L. Ramos‐Merino   +1 more
wiley   +1 more source

Chronic Administration of Nicotine-Free Cigarette Smoke Extract Impaired Endothelium-Dependent Vascular Relaxation in Rats via Increased Vascular Oxidative Stress

open access: yesJournal of Pharmacological Sciences, 2012
Cigarette smoking has been implicated in the initiation and progression of cardiovascular disorders and atherosclerosis. Here, we examined the effects of nicotine-free cigarette smoke extract (CSE) on the regulation of cardiovascular function.
Takashi Shimosato   +4 more
doaj  

Thinking food delivery platforms infrastructurally: The practices and politics of Baemin's infrastructuralisation in Seoul

open access: yesNew Technology, Work and Employment, Volume 40, Issue 2, Page 214-241, July 2025.
Abstract The proliferation of food delivery platforms is profoundly changing the way urbanites eat, work, and move. These platforms increasingly mobilise urban resources and population to function as critical infrastructure in the field of logistics and transportation, giving rise to a new form of governance.
Noel Chung
wiley   +1 more source

Behaviour and mechanism of feeding of Lathonura rectirostris (Cladocera, Macrothricidae). [Translation from: Zoologicheskie Zhurnal 50, 1002-1010, 1971.] [PDF]

open access: yes, 1971
The behaviour in the feeding process and the functional morphology of Lathonura rectirostris O.F. Muller - one of the widely distributed species of macrothricids - is studied.
Sergeev, V.N.
core  

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