Results 31 to 40 of about 1,047,812 (348)

Mating influence in the ovary differentiation in adult queens of Apis mellifera L. (Hymenoptera, Apidae)

Brazilian Journal of Biology
The present results show that in the ovarioles of a newly emerged (0 day) queen of A. mellifera only two regions may be distinguished: a proximal, short germarium and a very long distal, terminal filament.
K. PATRÍCIO, C. CRUZ-LANDIM
doaj   +1 more source

Singles’ Reasons for Being Single: Empirical Evidence From an Evolutionary Perspective

Frontiers in Psychology, 2020
A relatively large number of people in Western societies are single; that is, they are not involved in any romantic relationship. In this study, we have attempted to investigate the reasons for singlehood by asking singles themselves.
Menelaos Apostolou, Jiaqing O, Gianluca Esposito, Gianluca Esposito, Gianluca Esposito   +4 more
doaj   +1 more source

Aspects of Ultrasonographic Diagnostics of Pregnancy in Bitches depending on the first mating [PDF]

Veterinary World, 2008
The aim of the present study was to follow up the potential of routine ultrasonographic diagnostics of pregnancy in bitches depending on the first mating. The experiments were performed on 32 bitches.
Aissi, A.
doaj  

Is ultra-violet fluorescence a trait related to breeding in the Mongolian racerunner (Eremias argus; Lacertidae, Reptilia)?

Journal of Biological Research - Thessaloniki, 2023
Ornamental traits such as ultraviolet (UV) fluorescence and reflectance can provide honest signals indicating the bearer’s condition as a potential mate. UV fluorescence is widely found in nature and used for multiple functions, such as indicating female
Jiao Li, Shin Yucheol, Meiling Hong, Yikweon Jang, Amael Borzee   +4 more
doaj   +1 more source

Maintenance of polymorphism in the orb weaving spider species Agalenatea redii (Araneae, Araneidae)

Arachnologische Mitteilungen, 2012
The maintenance of polymorphism within populations may be the consequence of several elements of species life history such as use of space, activity rhythms, predation, parasitism and reproduction.
Geay, Catherine, Leborgne, Raymond, Olivier, François, Pasquet, Alain   +3 more
doaj   +1 more source

Non-random mating for selection with restricted rates of inbreeding and overlapping generations

Genetics Selection Evolution, 2002
Minimum coancestry mating with a maximum of one offspring per mating pair (MC1) is compared with random mating schemes for populations with overlapping generations. Optimum contribution selection is used, whereby ΔF is restricted.
Meuwissen Theo HE, Sonesson Anna K
doaj   +1 more source

Mating Success of Gypsy Moth (Lepidoptera: Lymantriidae) Females in Southern Wisconsin [PDF]

, 2018
Mating success of laboratory-reared gypsy moth Lymantria dispar (L.) females exposed for 24 hr on tree boles and its relationship to male moth counts in pheromone-baited traps was studied in southern Wisconsin. The relationship between mating probability
Brewster, Carlyle C, Sharov, Alexei A, Tcheslavskaia, Ksenia   +2 more
core   +3 more sources

Improved timed-mating, non-invasive method using fewer unproven female rats with pregnancy validation via early body mass increases [PDF]

, 2018
For studies requiring accurate conception-timing, reliable, efficient methods of detecting oestrus reduce time and costs, whilst improving welfare. Standard methods use vaginal cytology to stage cycle, and breeders are paired–up using approximately five ...
Agata K Stramek, Barnett SW, Becker JB, Crean GP, Cripps AW, Feder HH, Ferguson SA, Goldman JM, Gualillo O, Johnson ML, Johnson ML, Lopez-Luna P, Marcondes FK, Michelle L Johnson, Prager EM, Pujol E, Trujillo ML, Turner KM, Victoria J Taylor   +18 more
core   +1 more source

Are men intimidated by highly educated women? Undercover on Tinder [PDF]

, 2019
In this study, we examine the impact of an individual's education level on her/his mating success on the mobile dating app Tinder. To do so, we conducted a field experiment on Tinder in which we collected data on 3,600 profile evaluations.
Akerlof, Baert, Baert, Belot, Bertrand, Bertrand, Blossfeld, Blossfeld, Brecht Neyt, Buhrmester, Buonanno, Bursztyn, Buss, Buss, Buss, Buss, Cacioppo, Card, Chen, Cuñado, Domingue, Eastwick, Eriksson, Fernández, Finkel, Fiore, Fisman, Fortin, Goodman, Greenwood, Groot, Groot, Hitsch, Hitsch, Hout, Hu, Hwang, Jensen, Katz, Kroft, LeFebvre, Leigh, Machin, Mare, Olivetti, Ong, Ong, Ortega, Paolacci, Pencavel, Pierce, Psacharopoulos, Rand, Ranzini, Rockwell, Rosenfeld, Sarah Vandenbulcke, Shackelford, Shafer, Silles, Silventoinen, Skopek, Spuhler, Stijn Baert, Sumter, Timmermans, Timmermans, Todd, Trivers, Tyson, Vila, Ward, Watson, Whyte, Whyte, Whyte, Wiederman   +76 more
core   +2 more sources

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro, Sarah Silver, Prishi Patel, Meredith K. Reffner Collins, Kimberly S. Canter, Stephanie Fooks‐Parker, Michael Amylon, Shawna V. Hudson, Jessica L. Schleider, Melissa A. Alderfer, Katie A. Devine   +10 more
wiley   +1 more source