Results 31 to 40 of about 687 (138)

Sexual signalling in female crested macaques and the evolution of primate fertility signals. [PDF]

, 2012
BACKGROUND: Female signals of fertility have evolved in diverse taxa. Among the most interesting study systems are those of multimale multifemale group-living primates, where females signal fertility to males through multiple signals, and in which there ...
Agil, M, Engelhardt, A, Heistermann, M, Higham, JP, Perwitasari-Farajallah, D, Saggau, C   +5 more
core   +2 more sources

Characterization and social correlates of fecal testosterone and cortisol excretion in wild male Saguinus mystax [PDF]

, 2005
Reproductive success in male primates can be influenced by testosterone (T) and cortisol (C). We examined them in wild Saguinus mystax via fecal hormone analysis.
A. C. S. Albuquerque, A. F. Dixson, A. H. Harcourt, A. J. Ginther, A. J. Ginther, A. W. Goldizen, B. C. Trainor, C. Kraus, C. T. Snowdon, D. H. Abbott, D. H. Abbott, D. H. Abbott, D. H. Abbott, D. K. Brockmann, E. J. Wickings, E. W. Heymann, E. W. Heymann, E. W. Heymann, Eckhard W. Heymann, G. M. Barrett, J. A. French, J. C. Wingfield, J. Fowler, J. L. Ferreira Raminelli, J. M. Suttie, J. Moreno, J. Ostner, J. Terborgh, J. V. Baker, J. W. Lynch, K. B. Strier, K. Bales, M. B. C. Sousa, M. Huck, M. Huck, M.-F Bouissou, Maren Huck, Michael Heistermann, N. G. Caine, N. von Engelhardt, P. L. Whitten, P. Löttker, P. Löttker, P. Soini, Petra L�ttker, R. M. Sapolsky, R. M. Sapolsky, R. M. Sapolsky, R. Palme, R. W. Sussman, S. A. Cavigelli, S. A. Cavigelli, S. D. Kholkute, S. K. Wasser, S. K. Wasser, S. Nunes, T. E. Ziegler, T. E. Ziegler, T. E. Ziegler, T. E. Ziegler, U. Möhle   +60 more
core   +3 more sources

Bonobo Optimizer Inspired PI‐(1+DD) Controller for Robust Load Frequency Management in Renewable Wind Energy Systems

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
With the growing presence of renewable energy sources (RESs), the necessity for adaptive and robust control strategies becomes more pronounced. This article proposes a self‐adaptive bonobo optimizer (SABO)‐based proportional integral one plus double derivative (PI‐(1+DD)) controller that offers a novel solution to the load frequency control (LFC).
Sulaiman Z. Almutairi, Ghareeb Moustafa, Sultan Hassan Hakmi, Abdullah M. Shaheen, Akshay Kumar Saha   +4 more
wiley   +1 more source

Cost‐Effective and Low‐Carbon Emission Deployment of PV‐DG Integration in Distribution Networks Using Self‐Adaptive Bonobo Optimizer

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
This study presents an advanced optimization approach, the self‐adaptive bonobo optimization technique (SABOT), designed specifically to facilitate the seamless integration of photovoltaic‐distributed generation (PV‐DG) in distribution networks. While retaining the foundational principles of the standard BOT, SABOT incorporates four distinct mating ...
Mohammed H. Alqahtani, Ahmed R. Ginidi, Ali S. Aljumah, Abdullah M. Shaheen, Ahmed E. Radwan   +4 more
wiley   +1 more source

Male reproductive tactics to increase paternity in the polygynandrous Columbian ground squirrel ( Urocitellus columbianus ) [PDF]

, 2018
In polyandrous and polygynandrous species where females mate with multiple partners, males are expected to maximize their fitness by exhibiting an array of reproductive behaviors to ensure fertilization success, such as competing for the best mating ...
Balmer, Adele, Coltman, David, Dobson, F., Gorrell, Jamieson, Heg, Dik, Neuhaus, Peter, Raveh, Shirley, Viblanc, Vincent   +7 more
core  

Determinants of male reproductive success in wild long-tailed macaques (Macaca fascicularis)—male monopolisation, female mate choice or post-copulatory mechanisms? [PDF]

One of the basic principles of sexual selection is that male reproductive success should be skewed towards strong males in species with anisogamous sex. Studies on primate multi-male groups, however, suggest that other factors than male fighting ability ...
Engelhardt, A, Heistermann, M, Hodges, JK, Niemitz, C, Nürnberg, P   +4 more
core   +1 more source

Looking at the bid picture: A framework for identifying reverse auctions in ecological systems

Journal of Animal Ecology, Volume 93, Issue 7, Page 774-783, July 2024.
This manuscript will be the first to propose including auction systems into biological market theory. By submitted as a Concepts paper, our goal is to general conversation about this topic and encourage future work. Abstract Biological market theory can be used to explain intraspecific cooperation, interspecific mutualism, and sexual selection through ...
Katherine J. Fowler, Emily J. Potratz, Margaret Malone, Abdel Halloway, Joy Peplinski, Joel S. Brown   +5 more
wiley   +1 more source

Mating skew in Barbary macaque males: the role of female mating synchrony, female behavior, and male-male coalitions [PDF]

, 2018
A fundamental question of sexual selection theory concerns the causes and consequences of reproductive skew among males. The priority of access (PoA) model (Altmann, Ann NY Acad Sci 102:338-435, 1962) has been the most influential framework in primates ...
Bischofberger, Nicole, Bissonnette, Annie, van Schaik, Carel   +2 more
core  

Great ape gestures : intentional communication with a rich set of innate signals [PDF]

, 2017
Great apes give gestures deliberately and voluntarily, in order to influence particular target audiences, whose direction of attention they take into account when choosing which type of gesture to use.
Byrne, R. W., Cartmill, E., Genty, E., Graham, K. E., Hobaiter, C., Tanner, J.   +5 more
core   +2 more sources

Male Barbary macaques choose loyal coalition partners which may increase their coalition network betweenness

Ethology, Volume 130, Issue 4, April 2024.
In larger groups, males can support each other in coalitions against male group mates. Here we show with data on Barbary macaques, that males cooperate more with partners that are more loyal to them and that loyalty is reciprocated. We argue that this partner choice mechanism may often affect an individual's coalition network betweenness ‐ depicted ...
Oliver Schülke, Eva‐Maria Rathke, Andreas Berghänel, Julia Ostner   +3 more
wiley   +1 more source