Results 41 to 50 of about 19,487 (216)

Effects of Ingestion of Lithic Particles on Growth of the Apple Snail Pomacea canaliculata (Caenogastropoda, Ampullariidae) [PDF]

open access: yes, 2016
Lithic particles are a common feature in the digestive tract of freshwater snails. Their role in the digestive processes has been demonstrated in some microphytophagous and detritivorous species, as they enhance growth, assimilation and reproduction.
Manara, Enzo   +2 more
core   +1 more source

Synonymy between Lymnaea bogotensis Pilsbry, 1935 and Lymnaea cousini Jousseaume, 1887 (Gastropoda: Lymnaeidae) [PDF]

open access: yesMemórias do Instituto Oswaldo Cruz, 2006
The lymneid snail Lymnaea bogotensis Pilsbry 1935 is synonymized with L. cousini Jousseaume 1887, based on morphological comparisons of the reproductive systems. The shell, renal tube, and reproductive system are described and illustrated from specimens collected in the type locality and the municipality of Paipa, Colombia.
openaire   +4 more sources

Cryptic Reproductive Costs of Heatwaves for Animal Populations

open access: yesGlobal Change Biology, Volume 31, Issue 11, November 2025.
Heatwaves are among the most serious threats posed by climate change to biodiversity. They are known to cause mass mortality events in animals and to strongly affect animal reproduction. The impact of heatwaves on reproduction is crucial because it occurs across all stages, from gamete formation to offspring number and development and beyond.
Chiara Morosinotto   +4 more
wiley   +1 more source

Cloning characterisation and expression of a G-protein-couple receptor from Lymnaea stagnalis and identification of a leucokinin-like peptide PSFHSWSamide as its endogenous ligand [PDF]

open access: yes, 1997
No description ...
Burke, Julian F   +7 more
core   +1 more source

How do parasites and predators choose their victim? A trade‐off between quality and vulnerability across antagonistic interactions

open access: yesBiological Reviews, Volume 100, Issue 5, Page 2099-2115, October 2025.
ABSTRACT From blood‐sucking lice and food‐stealing gulls to pandemic‐inducing viruses and egg‐eating snakes: parasites and predators are ubiquitous in shaping ecology and evolution. Fundamental to these interactions is the way in which parasites and predators choose their victim. Here, I argue that a trade‐off between host quality and vulnerability can
Mairenn C. Attwood
wiley   +1 more source

Spatio-temporal co-occurrence of alien and native molluscs : a modelling approach using physical-chemical predictors [PDF]

open access: yes, 2017
The invasion of alien species can have serious economic and ecological impacts. Ecologically, invasions often lead to an increased rate of native species replacement and decreased biodiversity.
Boets, Pieter   +3 more
core   +1 more source

Diplostomum‐Induced Sac Formation in Lenses of Ameiurus Bullheads: A Host Defence Response?

open access: yesJournal of Fish Diseases, Volume 48, Issue 10, October 2025.
ABSTRACT Trematodes of the genus Diplostomum (Diplostomidae) are widely distributed and significant fish pathogens known for causing a range of negative effects. Any mechanism that protects the host from the parasite thus represents an evolutionary advantage.
Markéta Ondračková   +6 more
wiley   +1 more source

Responses of a bacterial pathogen to phosphorus limitation of its aquatic invertebrate host [PDF]

open access: yes, 2008
Host nutrition is thought to affect the establishment, persistence, and severity of pathogenic infections. Nutrient-deficient foods possibly benefit pathogens by constraining host immune function or benefit hosts by limiting parasite growth and ...
Ebert, D., Frost, P. C., Smith, V. H.
core   +3 more sources

Warming strengthens food web effects of predator phenotypic variation

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2284-2299, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Intraspecific variation modifies ecological processes and ecosystem functioning. Still, we know relatively little of how the nature and strength of ecosystem effects caused by intraspecific variation may interact with climate change.
Tiina Salo   +6 more
wiley   +1 more source

Anterograde Signalling by Nitric Oxide: Characterisation and In Vitro Reconstitution of an Identified Nitrergic Synapse [PDF]

open access: yes, 1998
Nitric oxide (NO) is recognized as a signaling molecule in the CNS where it is a candidate retrograde neurotransmitter. Here we provide direct evidence that NO mediates slow excitatory anterograde transmission between the NO synthase (NOS)-expressing B2 ...
O'Shea, Michael   +2 more
core   +1 more source

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