Results 191 to 200 of about 67,577 (337)

Geological Substrate Is Related to Tooth Senescence and Population Dynamic: The Case Study of Alpine Chamois (Rupicapra rupicapra L.)

Integrative Zoology, EarlyView.
In Alpine chamois, the complete wear of the first molar coincides with the beginning of senescence and the progress of tooth wear on calcareous substrate is slower than the one on other substrates, increasing life expectancy. Thus, the first molar wear may actually be considered as an effective descriptor of senescence stage.
Roberta Chirichella, Marco Apollonio
wiley   +1 more source

State of nature 2023 terrestrial and freshwater animal dataset for the United Kingdom and its constituent countries. [PDF]

Data Brief
Burns F, Mordue S, Al-Fulaij N, Boersh-Supan P, Boughey KL, Briggs P, Eaton MA, Harrower C, Jackson AC, Langton S, Mancini F, Noble D, Shortall CR, Smith CA, Pakeman RJ.   +14 more
europepmc   +1 more source

Field ornithology in South Australia.

, 1912
S. A. White
semanticscholar   +1 more source

The Evolution of Male Weapons Is Associated with the Type of Breeding Site in a Clade of Neotropical Frogs

Integrative Zoology, EarlyView.
Male weaponry evolution is often linked to male–male competition, but its relationship with breeding site type remains unclear. Using Leptodactylinae frogs, we found a macroevolutionary correlation between breeding site type and weapon evolution. Also, gains and losses of weapons occurred more frequently in exposed‐breeding sites, an unexpected finding.
Erika M. Santana, Daniel S. Caetano, Alexandre V. Palaoro, Glauco Machado   +3 more
wiley   +1 more source

A colorful legacy of hybridization in wood-warblers includes frequent sharing of carotenoid genes among species and genera. [PDF]

PLoS Biol
Bennett KFP, Wood AW, Baiz MD, Phung LN, Lovette IJ, Toews DPL.   +5 more
europepmc   +1 more source

Unravelling Evolutionary Dynamics of Female Sexual Cannibalism and Male Reproductive Strategies in Spiders

Integrative Zoology, EarlyView.
Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer, Franco Cargnelutti, Daiqin Li, Matjaž Kuntner   +3 more
wiley   +1 more source

Forest Bird Abundance Is Linked to the Interactions Between Forest Characteristics and Species Ecological Traits: Implications for Forest Management. [PDF]

Ecol Evol
Szarvas F, Michálek J, Vermouzek Z, Voříšek P, Hanzelka J, Reif J.   +5 more
europepmc   +1 more source

Colour Morphs as Alternative Solutions to the Trade‐Off Predicted by the Immuno‐Competence Handicap Hypothesis

Integrative Zoology, EarlyView.
In this study, we tested whether white and yellow morphs of the common wall lizard (Podarcis muralis) adopt alternative strategies shaped by the immuno‐competence handicap hypotheses (ICHH). We found that testosterone‐induced immune suppression was stronger in white males, while aggression decreased in both morphs.
Roberto Sacchi, Alan J. Coladonato, Stefano Scali, Marco A. L. Zuffi, Rupert Palme, Marco Mangiacotti   +5 more
wiley   +1 more source

The value of education, training and experience to improve the accuracy of identification: a commentary on 'Inter- and intra-observer variation in phytolith morphometry'. [PDF]

Ann Bot
Hart TC.
europepmc   +1 more source

Ornithology

The American Biology Teacher, 2004
openaire   +1 more source