Results 181 to 190 of about 1,104,726 (307)

Field‐based evidence of impaired sperm quality associated with conventional farming in two passerine birds

Ibis, EarlyView.
The detrimental effects of conventional farming on bird biodiversity are increasingly documented. Despite this, the specific impacts of both organic and conventional farming practices on bird coloration and sperm quality in natural settings remain unexplored. This study aimed to determine whether these farming practices differentially affect body mass,
Ségolène Humann‐Guilleminot, Audrey Bailly, Karine Monceau, Mélissa Desbonnes, Vincent Bretagnolle, Jérôme Moreau   +5 more
wiley   +1 more source

No evidence for phenotypic condition-dependent ejaculate allocation in response to sperm competition in a seed beetle. [PDF]

Behav Ecol
Wyber BW, Tomkins JL, Simmons LW.
europepmc   +1 more source

Effects of Different Combinations of Sterile and Fertile Thaumatotibia leucotreta on Fruit Infestation and Population Growth Rate

Journal of Applied Entomology, EarlyView.
ABSTRACT Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a key phytosanitary pest of citrus in South Africa. The pest damages fruit by burrowing and feeding on the pulp, thus causing yield losses and export rejections. There are several T. leucotreta management strategies, such as orchard sanitation, mating disruption, attract‐and‐kill,
Michael M. Githae, Candice A. Coombes, Reyard Mutamiswa, Sean D. Moore, Martin P. Hill   +4 more
wiley   +1 more source

Sperm competition intensity shapes divergence in both sperm morphology and reproductive genes across murine rodents. [PDF]

Evolution
Kopania EEK, Thomas GWC, Hutter CR, Mortimer SME, Callahan CM, Roycroft E, Achmadi AS, Breed WG, Clark NL, Esselstyn JA, Rowe KC, Good JM.   +11 more
europepmc   +1 more source

Growth and age differences between two male alternative reproductive tactics in the plainfin midshipman

Journal of Fish Biology, EarlyView.
Abstract The plainfin midshipman (Porichthys notatus Girard, 1854) is a toadfish with two distinct reproductive male tactics: ‘guarder males’ and ‘sneaker males’. These two tactics are anatomically, physiologically and behaviourally distinct from one another at sexual maturity, but it remained unclear whether these two male types remain fixed or ...
Micah J. Quindazzi, Angus Townsend, Aneesh P. H. Bose, Sigal Balshine, Francis Juanes   +4 more
wiley   +1 more source

Mate-guarding duration is mainly influenced by the risk of sperm competition and not by female quality in a golden orb-weaver spider. [PDF]

PeerJ, 2021
Del Matto LA, Macedo-Rego RC, Santos ESA.   +2 more
europepmc   +1 more source

Frequent Copulations Despite Low Sperm Competition in White Storks (Ciconia Ciconia)

, 1992
Francisco S. Tortosa, Tomás Redondo
openalex   +2 more sources

Sperm competition and the evolution of reproductive systems [PDF]

, 2014
Steven A. Ramm
openalex   +1 more source

Social manipulation of sperm competition intensity reduces seminal fluid gene expression

Biology Letters, 2018
Nadia S. Sloan, M. Lovegrove, L. Simmons
semanticscholar   +1 more source

Plasticity in the reproductive biology of Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake following lake trout Salvelinus namaycush invasion

Journal of Fish Biology, EarlyView.
Abstract Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake are the focus of intensive conservation efforts due to the threat of predation by invasive lake trout Salvelinus namaycush. Suppression gillnetting has reduced the abundance of predatory lake trout, and the Yellowstone cutthroat trout population is recovering ...
Michelle A. Briggs, Molly A. H. Webb, Christopher S. Guy, Todd M. Koel   +3 more
wiley   +1 more source