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Territorial male bullfrogs (Rana catesbeiana) do not assess fighting ability based on size-related variation in acoustic signals

Bee, Mark A. - In: Behavioral Ecology 13 (2002) 1, pp. 109-124

Some animals use communication signals to assess their opponent's size and fighting ability during aggressive conflicts. Male frogs assess their opponent's size based on the fundamental frequency (pitch) of advertisement calls, which is negatively correlated with body size, an important...

Persistent link: https://www.econbiz.de/10008470041

Alternative reproductive tactics and status-dependent selection

Lee, Jonathan S.F. - In: Behavioral Ecology 16 (2005) 3, pp. 566-570

The status-dependent selection model on alternative reproductive tactics predicts a single switch-point in status: usually all players above some status (e.g., competitive ability) should practice the tactic with the higher average payoff, while those below that point should make the "best of a...

Persistent link: https://www.econbiz.de/10008581392

Mating preference of female zebrafish, Danio rerio, in relation to male dominance

Spence, Rowena; Smith, Carl - In: Behavioral Ecology 17 (2006) 5, pp. 779-783

Mating success tends to be skewed toward dominant males, though female mate preferences may not always correlate with male dominance. In this study, we investigated the mating preferences of female zebrafish, Danio rerio, in the absence of male--male competition. We paired females sequentially...

Persistent link: https://www.econbiz.de/10008581398

Host social behavior and parasitic infection: a multifactorial approach

Ezenwa, Vanessa O. - In: Behavioral Ecology 15 (2004) 3, pp. 446-454

, group stability, territoriality and social class, and gastrointestinal parasite load in African bovids. At an intraspecific … territoriality, grouping, and parasitism were also found across taxa. Territorial host genera were more likely to be infected with … also revealed that gregariousness and territoriality had an interactive effect on individual parasite richness, whereby …

Persistent link: https://www.econbiz.de/10008581501

Site attachment of floaters predicts success in territory acquisition

Bruinzeel, Leo W.; Pol, Martijn van de - In: Behavioral Ecology 15 (2004) 2, pp. 290-296

In many territorial species, a fraction of all mature individuals are classified as floaters, and little is known about how these animals eventually acquire a breeding territory of their own. We observed intrusion behavior of floaters, subsequently removed breeding birds, and then observed...

Persistent link: https://www.econbiz.de/10008581556

Uncertainty in territory quality affects the benefits of usurpation in a Mediterranean wrasse

Alonzo, Suzanne H. - In: Behavioral Ecology 15 (2004) 2, pp. 278-285

Individuals should defend sites when the expected benefits of the territory exceed the cost of defense. However, if territory qulaity is unpredictable or difficult to assess, the expected pattern of territorial behavior is less clear. In a Mediterranean wrasse, Symphodus ocellatus, mating...

Persistent link: https://www.econbiz.de/10008581592

Neighbor-stranger discrimination by song in a suboscine bird, the alder flycatcher, Empidonax alnorum

Lovell, Scott F.; Lein, M. Ross - In: Behavioral Ecology 15 (2004) 5, pp. 799-804

Bird song and its functions have been studied extensively for more than 50 years, but almost entirely in oscine passerines. Few studies have investigated any aspect of song in suboscine passerines. This is significant because song development and the extent of individual variation in song...

Persistent link: https://www.econbiz.de/10008581703

Helping opportunities and space segregation in cooperatively breeding cichlids

Werner, Noam Y.; Balshine, Sigal; Leach, Brenda; Lotem, … - In: Behavioral Ecology 14 (2003) 6, pp. 749-756

Studies of cooperative breeding have largely ignored the role of conflict among helpers and how it shapes group dynamics and helping behavior. In the present study, performing laboratory experiments with cooperatively breeding cichlids from Lake Tanganyika, we show that secondary group members...

Persistent link: https://www.econbiz.de/10008581900