The coevolution of juvenile play –fighting and adult competition
Ethology,Volume 124, Issue 5, Page 290-301, May 2018. (Source: Ethology)
Source: Ethology - March 8, 2018 Category: Zoology Authors: Camilla
Cenni
,
Tim W.
Fawcett
,
J.
Wright Source Type: research
The coevolution of juvenile play –fighting and adult competition
Ethology, EarlyView. (Source: Ethology)
Source: Ethology - March 8, 2018 Category: Zoology Source Type: research
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Ethology, Ahead of Print. (Source: Ethology)
Source: Ethology - March 8, 2018 Category: Zoology Source Type: research
Predator occurrence and perceived predation risk determine grouping behavior in guanaco (Lama guanicoe)
Ethology,Volume 124, Issue 5, Page 281-289, May 2018. (Source: Ethology)
Source: Ethology - March 7, 2018 Category: Zoology Authors: Esperanza C.
Iranzo
,
Heiko U.
Wittmer
,
Juan
Traba
,
Pablo
Acebes
,
Cristina
Mata
,
Juan E.
Malo Source Type: research
Predator occurrence and perceived predation risk determine grouping behavior in guanaco (Lama guanicoe)
Ethology, EarlyView. (Source: Ethology)
Source: Ethology - March 7, 2018 Category: Zoology Source Type: research
---
Ethology, Ahead of Print. (Source: Ethology)
Source: Ethology - March 7, 2018 Category: Zoology Source Type: research
The coevolution of juvenile play –fighting and adult competition
Abstract
Although play–fighting is widespread among juvenile mammals, its adaptive significance remains unclear. It has been proposed that play is beneficial for developing skills to improve success in adult contests (motor‐training hypothesis), but the links between juvenile play–fighting and adult aggression are complex and not well understood. In this theoretical study, we investigate the coevolution between juvenile play–fighting and adult aggression using evolutionary computer simulations. We consider a simple life history with two sequential stages: a juvenile phase in which individuals play–fight with othe...
Source: Ethology - March 1, 2018 Category: Zoology Authors: Camilla Cenni, Tim W. Fawcett Tags: RESEARCH PAPER Source Type: research
Predator occurrence and perceived predation risk determine grouping behavior in guanaco (Lama guanicoe)
Abstract
Grouping behavior of social ungulates may depend on both predator occurrence and perceived predation risk associated with habitat structure, reproductive state, and density of conspecifics. Over 3 years, we studied grouping behavior of guanaco (Lama guanicoe) families in Chilean Patagonia during the birthing season and determined their response to variation in predator occurrence and perceived predation risk (habitat structure, calf/adult rate, and density of conspecifics). We considered the effect of two predators, puma (Puma concolor) and culpeo fox (Lycalopex culpaeus). We measured two common (family group siz...
Source: Ethology - March 1, 2018 Category: Zoology Authors: Esperanza C. Iranzo, Heiko U. Wittmer, Juan Traba, Pablo Acebes, Cristina Mata, Juan E. Malo Tags: RESEARCH PAPER Source Type: research
Male mate choice and the potential for complex mating dynamics in the tree lizard (Urosaurus ornatus)
Ethology,Volume 124, Issue 4, Page 236-244, April 2018. (Source: Ethology)
Source: Ethology - February 2, 2018 Category: Zoology Source Type: research
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Ethology,Volume 124, Issue 4, Page 236-244, April 2018. (Source: Ethology)
Source: Ethology - February 2, 2018 Category: Zoology Source Type: research
Female assessment of male functional fertility during mate choice in a promiscuous fish
Abstract
Sexual selection should favour females that can assess the functional fertility of available sexual partners and avoid mating with recently mated, sperm‐depleted males. Our current understanding of the sensory mechanism(s) underlying female assessment of males based on their functional fertility and avoidance of sperm‐depleted males is incomplete. Female Trinidadian guppies (Poecilia reticulata) are known to avoid mating with males that they had previously observed mating with other females. Here, we investigated experimentally the proximate sensory cues that they use to distinguish between paired size‐ and ...
Source: Ethology - February 2, 2018 Category: Zoology Authors: Valentina Scarponi, Jean ‐Guy J. Godin Tags: RESEARCH PAPER Source Type: research
Issue Information
(Source: Ethology)
Source: Ethology - February 2, 2018 Category: Zoology Tags: ISSUE INFORMATION Source Type: research
A juvenile eagle owl moving in the surrounding of the nest during the post ‐fledging dependence period, when movement behaviour seems to be mainly related to the rearing environment (picture: Vincenzo Penteriani).
(Source: Ethology)
Source: Ethology - February 2, 2018 Category: Zoology Tags: FRONT COVER Source Type: research
Male mate choice and the potential for complex mating dynamics in the tree lizard (Urosaurus ornatus)
Abstract
A growing body of literature is recognizing that males may also play a role in the mating process by behaving non‐randomly toward potential female mates during courtship. In numerous species, discrete color polymorphisms in males are inferred to represent alternative mating tactics, which often correspond with concomitant asymmetries in ecology and behavior. In terms of their mating behavior, these ecological outcomes of a color polymorphism should affect a morph's likelihood and frequency of encountering females in a population, possibly favoring the evolution of morph‐specific mating preferences. Knowledge o...
Source: Ethology - February 1, 2018 Category: Zoology Authors: Kylie I. Krohmaly, Zachary W. Martin, Matthew S. Lattanzio Tags: RESEARCH PAPER Source Type: research
Random size ‐assortative mating despite size‐dependent fecundity in a Neotropical amphibian with explosive reproduction
Abstract
Sexual selection theory predicts that, when body size is correlated with fecundity, there should be fitness advantages for mate choice of the largest females. Moreover, because larger males are expected to monopolise the largest females, this should result in an assortative mating based on body size. Although such patterns could be expected in both explosive and prolonged breeders, non‐assortative mating should be more widespread in species under time constraints. However, patterns of sexual selection are largely unexplored in explosive breeding species, and contrasting patterns have been found previously. We ex...
Source: Ethology - January 24, 2018 Category: Zoology Authors: Diana Sz ékely, Paul Székely, Mathieu Denoël, Dan Cogălniceanu Tags: RESEARCH PAPER Source Type: research
