Male alternative reproductive tactics and sperm competition: A meta‐analysis

LR Dougherty, MJA Skirrow, MD Jennions… - Biological …, 2022 - Wiley Online Library
In many animal species, males may exhibit one of several discrete, alternative ways of
obtaining fertilisations, known as alternative reproductive tactics (ARTs). Males exhibiting …

Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system

SK Lamar, NJ Nelson, JA Moore, HR Taylor, SN Keall… - PLoS …, 2021 - journals.plos.org
Successful reproduction is critical to the persistence of at-risk species; however,
reproductive characteristics are understudied in many wild species. New Zealand's endemic …

Characterization of sperm and implications for male fertility in the last of the Rhynchocephalians

SK Lamar, NJ Nelson, DK Ormsby - Conservation Physiology, 2023 - academic.oup.com
Managing a species of conservation concern can be best achieved when there is
information on the reproductive physiology of both sexes available; however, many species …

Sperm numbers as a paternity guard in a wild bird

M Rowe, A Van Oort, L Brouwer, JT Lifjeld, MS Webster… - Cells, 2022 - mdpi.com
Sperm competition is thought to impose strong selection on males to produce competitive
ejaculates to outcompete rival males under competitive mating conditions. Our …

The association between personalities, alternative breeding strategies and reproductive success in dunnocks

B Holtmann, CE Lara, ESA Santos… - Journal of …, 2022 - academic.oup.com
Although consistent between‐individual differences in behaviour (ie animal personality) are
ubiquitous in natural populations, relatively few studies have examined how personalities …

Measuring pre-and post-copulatory sexual selection and their interaction in socially monogamous species with extra-pair paternity

ERA Cramer - Cells, 2021 - mdpi.com
When females copulate with multiple males, pre-and post-copulatory sexual selection may
interact synergistically or in opposition. Studying this interaction in wild populations is …

Immune stress and diet influence reproductive fitness in male tuatara (Sphenodon punctatus)

SK Lamar, DK Ormsby, NJ Nelson - Current Zoology, 2024 - academic.oup.com
The theoretical trade-off between immune and endocrine investment in mating animals has
received mixed empirical support, particularly in reptiles. We investigated the relationship …

No general effects of advancing male age on ejaculates: a meta-analysis across the animal kingdom

K Sanghvi, R Vega-Trejo, S Nakagawa, SJL Gascoigne… - bioRxiv, 2023 - biorxiv.org
Senescence, the deterioration of organismal function with advancing age, is a puzzling
biological phenomenon. While actuarial senescence (ie, age-dependent increases in …

In-Vivo Effects of Canary (Serinus Canary) Semen Diluted with Different Semen Extenders on Eggs in Artificial Insemination

AO Özkök - Journal of Anatolian Environmental and Animal … - dergipark.org.tr
In this study, the effect of Dulbecco's Phosphate Buffered Saline (DPBS) and Dulbecco's
Modified Eagle's Medium (DMEM) extenders on artificial insemination was determined.. For …

Tongue spots of Dunnock (Prunella modularis) nestlings reflect body condition but exert only conditional influence on parental allocation

CE Lara, B Holtmann, ESA Santos, GJ Castaño‐Villa… - Ibis, 2021 - Wiley Online Library
The nestlings of many bird species have ornaments in their mouths, yet the within‐species
function of these ornaments remains relatively little studied compared with adult ornaments …