Results 31 to 40 of about 3,374 (124)

Phenotypic plasticity of ‘off‐host’ parasite stages in response to heatwaves in the Daphnia‐Pasteuria system

Ecology, Volume 107, Issue 9, September 2026.
Abstract Heatwaves challenge our understanding of how environmental stressors reshape host–parasite interactions, particularly during the critical “off‐host” stages of endoparasites. These stages, often dismissed as inert and unaffected by environmental changes, remain a black box in ecological research despite their key role in parasites' life cycle ...
Justine Boutry, Noa Lavi Shasha, Frida Ben‐Ami   +2 more
wiley   +1 more source

When Timing Matters: Shedding Light on Mechanisms Underlying Host–Pathogen Dynamics in Freshwater

Conservation
Invertebrates possess an innate immune system that acts non-specifically against pathogens and is regulated by the circadian clock. Using the host–parasite system, Daphnia magna and its bacterial parasite Pasteuria ramosa, we investigated day–night ...
Anke Schwarzenberger, Carla E. Cáceres, Dominik Martin-Creuzburg, Alexander Wacker   +3 more
doaj   +1 more source

Waterbirds and Other Drivers of Endoparasite Communities Across a Hierarchy of Spatial Scales

Freshwater Biology, Volume 71, Issue 4, April 2026.
ABSTRACT Understanding drivers of parasite community structure is compromised by poor sampling and historical focus on one host‐one parasite systems. Yet parasites are ubiquitous and co‐infections are common. This study aimed to identify how various drivers, ranging from landscape scale (waterbird movements, hydrological connectivity, region, host ...
Sarah Nichols, Paolo Ruggeri, Henrietta Pringle, Gavin Siriwardena, Hanna Hartikainen, Beth Okamura   +5 more
wiley   +1 more source

Cloning of the unculturable parasite Pasteuria ramosa and its Daphnia host reveals extreme genotype-genotype interactions

, 2010
The degree of specificity in host–parasite interactions has important implications for ecology and evolution. Unfortunately, specificity can be difficult to determine when parasites cannot be cultured. In such cases, studies often use isolates of unknown
Ebert, Dieter, Dieter Ebert, Ben-Ami, Frida, Laurence Mouton, Du Pasquier, L., Ben-Ami, F., Luijckx, Pepijn, Frida Ben-Ami, Pepijn Luijckx, Du Pasquier, Louis, Mouton, L., Louis Du Pasquier, Mouton, Laurence, Luickx, P.   +13 more
core   +1 more source

Novel non-canonical strigolactone analogs highlight selectivity for stimulating germination in two Phelipanche ramosa populations [PDF]

, 2022
Strigolactones (SLs) are plant hormones exuded in the rhizosphere with a signaling role for the development of arbuscular mycorrhizal (AM) fungi and as stimulants of seed germination of the parasitic weeds Orobanche, Phelipanche and Striga, the most ...
Laurence, Miesch, Jean-Bernard, Pouvreau, Quentin, Taulera, Soizic, Rochange, Alexandre, de Saint Germain, François-Didier, Boyer, Jean-Paul, Pillot, Suzanne, Daignan Fornier, Pascal, Retailleau, Lucile, Andna   +9 more
core   +2 more sources

Waterborne transmission largely contributes to the epidemiology of a plankton parasite

Ecology, Volume 107, Issue 3, March 2026.
Abstract Understanding how parasites spread is crucial for preventing infections and predicting epidemic dynamics. These efforts are challenging for environment‐borne parasites because transmission is host density‐independent. We monitored the dynamics of Pasteuria ramosa, a common bacterial parasite of Daphnia magna with prolonged free‐living ...
Christina P. Tadiri, Dieter Ebert
wiley   +1 more source

A novel approach to parasite population genetics: experimental infection reveals geographic differentiation, recombination and host-mediated population structure in Pasteuria ramosa, a bacterial parasite of Daphnia

, 2012
The population structure of parasites is central to the ecology and evolution of host-parasite systems. Here, we investigate the population genetics of Pasteuria ramosa, a bacterial parasite of Daphnia. We used natural P.
Ebert, Dieter, D. Ebert, Andras, Jason P., Andras, J. P., J. P. Andras   +4 more
core   +1 more source

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

Biological 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

Transgenerational pathogen effects: Maternal pathogen exposure reduces offspring fitness

Ecology, Volume 106, Issue 9, September 2025.
Abstract Pathogens can alter the phenotype not only of exposed hosts, but also of future generations. Transgenerational immune priming, where parental infection drives reduced susceptibility of offspring, has been particularly well explored, but pathogens can also alter life history traits of offspring.
Kristina M. McIntire, Marcin K. Dziuba, Elizabeth B. Haywood, Miles L. Robertson, Megan Vaandrager, Emma Baird, Fiona E. Corcoran, Taleah Nelson, Michael H. Cortez, Meghan A. Duffy   +9 more
wiley   +1 more source

Three's a crowd: The relationship among endoparasites, an epibiont and their Daphnia host

Oikos, Volume 2025, Issue 8, August 2025.
In freshwater communities, organisms interact in a variety of ways, including predation, competition and parasitism. Parasites are ubiquitous, playing an important role in shaping freshwater communities. Endoparasites live within internal organs of their host, while ectoparasites, also known as epibionts, are confined to the external part of the host's
Ofir Hirshberg, Frida Ben‐Ami
wiley   +1 more source