Possible resource-defence polygyny in the extinct Rodrigues SolitairePezophaps solitaria(Columbidae: Raphini)

Ibis ◽  
2015 ◽  
Vol 158 (1) ◽  
pp. 199-201
Author(s):  
Ingvar Byrkjedal ◽  
Gaute Grønstøl ◽  
Terje Lislevand
Keyword(s):  
Resource Defence

Male Resource Defence Behaviour Strengthens Harem Size in Promiscuously Mating Fruit Bats

2017 ◽  
Vol 19 (2) ◽  
pp. 329-336 ◽  
Author(s):  
Doss D. Paramanantha Swami ◽  
Venkatesh Nagarajan-Radha
Keyword(s):  
Fruit Bats ◽  
Resource Defence ◽  
Harem Size ◽  
Defence Behaviour

Do Feeding Resources Induce the Adoption of Resource Defence Polygyny in a Lekking Butterfly?

Ethology ◽  
2012 ◽  
Vol 118 (3) ◽  
pp. 311-319 ◽  
Author(s):  
Paulo E. C. Peixoto ◽  
Danilo Muniz ◽  
Woodruff W. Benson
Keyword(s):  
Resource Defence ◽  
Feeding Resources

A test for resource-defence mating in the fiddler crab Uca beebei

1994 ◽  
Vol 48 (4) ◽  
pp. 795-802 ◽  
Author(s):  
John H. Christy ◽  
Ursula M. Schober
Keyword(s):  
Fiddler Crab ◽  
Resource Defence

scholarly journals Progesterone modulates aggression in sex-role reversed female African black coucals

2008 ◽  
Vol 275 (1638) ◽  
pp. 1053-1060 ◽  
Author(s):  
Wolfgang Goymann ◽  
Andrea Wittenzellner ◽  
Ingrid Schwabl ◽  
Musa Makomba
Keyword(s):  
Aggressive Behaviour ◽  
Sex Role ◽  
Bird Species ◽  
General Mechanism ◽  
Hormonal Changes ◽  
Free Living ◽  
Experimental Conditions ◽  
Resource Defence ◽  
Territorial Aggression ◽  
African Black

Testosterone is assumed to be the key hormone related to resource-defence aggression. While this role has been confirmed mostly in the context of reproduction in male vertebrates, the effect of testosterone on the expression of resource-defence aggression in female vertebrates is not so well established. Furthermore, laboratory work suggests that progesterone inhibits aggressive behaviour in females. In this study, we investigated the hormonal changes underlying territorial aggression in free-living female African black coucals, Centropus grillii (Aves; Cuculidae). Females of this sex-role reversed polyandrous bird species should be particularly prone to be affected by testosterone because they aggressively defend territories similar to males of other species. We show, however, that territorial aggression in female black coucals is modulated by progesterone. After aggressive territorial challenges female black coucals expressed lower levels of progesterone than unchallenged territorial females and females without territories, suggesting that progesterone may suppress territorial aggression and is downregulated during aggressive encounters. Indeed, females treated with physiological concentrations of progesterone were less aggressive than females with placebo implants. This is one of the first demonstrations of a corresponding hormone–behaviour interaction under challenged and experimental conditions in free-living females. We anticipate that our observation in a sex-role reversed species may provide a more general mechanism, by which progesterone—in interaction with testosterone—may regulate resource-defence aggression in female vertebrates.

Resource defence in female pollinating fig wasps: two's a contest, three's a crowd

2003 ◽  
Vol 66 (6) ◽  
pp. 1101-1107 ◽  
Author(s):  
J.C. Moore ◽  
J.M. Greeff
Keyword(s):  
Fig Wasps ◽  
Resource Defence

Communication amongst the musteloids: signs, signals, and cues

2018 ◽  
Author(s):  
Christina D. Buesching ◽  
Theodore Stankowich
Keyword(s):  
Social System ◽  
Prey Species ◽  
Group Membership ◽  
Conservation Management ◽  
Intentional Communication ◽  
Predator Cues ◽  
Resource Defence ◽  
Territorial Marking

Most intentional communication is intra-specific and benefits both sender and receiver. Typically, the more complex a species’ social system, the more complex is its communication. Because only ca. 10% of musteloid species are truly social, their communication is generally quite basic, while their solitary, nocturnal lifestyle is reflected in a predominance of olfactory signals. This chapter first discusses the properties of different signal modalities (visual, acoustic, olfactory and tactile), and then provides a review of musteloid communication in the context of signal functionality, starting with a section on defensive signals (warning-, alarm-, and distress signals), proceeding to other modes of inter-specific communication, such as eavesdropping on predator cues by smaller prey species (odours increasingly applied in conservation management), before moving on to more specialised intra-specific communication. It discusses resource defence and territorial marking, before concluding with a section on individual advertisement, including recognition of individuals and group-membership, and fitness advertisement.

Sign in / Sign up

Export Citation Format

Share Document