Results 141 to 150 of about 9,074,620 (325)

Evolution: Sperm, Cryptic Choice, and the Origin of Species [PDF]

Current Biology, 2013
In two fruit fly species, in vivo observations of competing sperm reveal how differences in sperm size, female behavior and reproductive architecture promote retention of same-species sperm. Sexual selection continues after mating and may play an important role in speciation.
openaire   +2 more sources

Emotional responses of veterinary students to first encounters with animal body donors

Anatomical Sciences Education, EarlyView.
Abstract Students' first encounters with animal body donors in higher education are a formative and also potentially stressful experience. The complex emotions elicited by body donor use in learning and their effects on professional development have been documented in medical students, but are far less explored in veterinary medical counterparts.
S. Regnault, C. Basu, S. Channon
wiley   +1 more source

Molecular Markers for Analyses of Genetic Diversity within the Anastrepha fraterculus Complex with Emphasis on Argentine Populations

Insects
The South American fruit fly Anastrepha fraterculus (Wiedmann) has a vast range extending from northern Mexico, through Central America, to South America where it is an extremely polyphagous pest of wild and cultivated fruits.
Ludvik M. Gomulski, María Teresa Vera, Silvia B. Lanzavecchia, Riccardo Piccinno, Giulia Fiorenza, Daniel De Luca, Beatriz N. Carrizo, Juan Pedro R. Bouvet, Valeria A. Viana, Carlos Cárceres, Walther Enkerlin, Anna R. Malacrida, Giuliano Gasperi   +12 more
doaj   +1 more source

Graphite Co‐Intercalation Chemistry in Sodium‐Ion Batteries

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
Traditional intercalation chemistry in lithium‐ion batteries cannot allow sodium storage in graphite. The co‐intercalation chemistry changes the situation. It enables reversible and ultrafast sodium storage in graphite. Revisiting challenges and summarizing recent advances are of significant importance to exploit the full potential of graphite in ...
Linlong Lyu, Yuyang Yi, Zheng‐Long Xu
wiley   +1 more source

Understanding Plant Parasitism: Hydnora Africana and European Scientific Practice in the Early Nineteenth Century**

Berichte zur Wissenschaftsgeschichte, EarlyView.
This article will analyze the uncertainties around collecting and classifying Hydnora africana in the first half of the nineteenth century. Emerging from the distinctive dryland ecologies of South Africa, Hydnora was interpreted as strange and cryptic by Europeans primarily because it is a root parasite—a complex floral trait that was little understood.
Katherine Arnold
wiley   +1 more source

Ant Diversity of the Xisha Islands: Community Structure, Exotic Species Colonization, and Ecological Functions in a Tropical Coral Archipelago

Biological Diversity, EarlyView.
The first inventory of ants from the Xisha Islands of the South China Sea was compiled, revealing 21 species: 70% native and 30% exotic. Anthropogenic disturbance primarily drove exotic colonization, whereas island area showed weak positive effects on species richness. Most ants were omnivorous, with key mutualistic and seed‐dispersal roles.
Hua‐Yan Chen, Zhi‐Xuan Liu, Zheng‐Hui Xu, Rui‐Chong Wang, Shi‐Xiao Luo   +4 more
wiley   +1 more source

Molecular phylogenetic analysis of Peronosclerospora (Oomycetes) reveals cryptic species and genetically distinct species parasitic to maize

, 2011
Downy mildews are amongst the most widespread and economically important pathogens of cultivated grasses in the tropics and subtropics. Despite their importance, molecular methods, particularly DNA sequence analysis, have rarely been applied to either ...
Sabine Telle, Marco Thines, Shivas, Roger G., Telle, S., Ryley, Malcolm J., Malcolm J. Ryley, Telle, Sabine, Thines, Marco, Thines, M., Ryley, M. J., Roger G. Shivas   +10 more
core   +1 more source

Review of the fauna associated with wild and farmed mussels and oysters in the Mediterranean

Biological Reviews, EarlyView.
ABSTRACT Mussels and oysters are important ecosystem engineers which modify the physical and chemical characteristics of the environment and create habitats that support highly diverse associated communities. In the Mediterranean Sea, the native Mediterranean mussel Mytilus galloprovincialis and the European flat oyster Ostrea edulis, together the ...
Barbara Mikac, Marina Antonia Colangelo, Alessandro Tarullo, Marco Abbiati, Eugenio Fossi, Federica Costantini   +5 more
wiley   +1 more source

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Food‐solicitation displays in nestling birds: still begging for answers

Biological Reviews, EarlyView.
ABSTRACT Nestling begging is a key model for understanding animal communication and parent–offspring conflict. Dynamic begging displays are often interpreted as costly, honest signals of need, with honesty maintained by viability costs, as proposed in Godfray's influential signalling model.
Daniel Parejo‐Pulido, Tomás Redondo
wiley   +1 more source