Search Results - subject:"FORAGING"

Kleptoparasitic prey competition in shoaling fish: effects of familiarity and prey distribution

Webster, Michael M.; Hart, Paul J.B. - In: Behavioral Ecology 17 (2006) 6, pp. 959-964

shoals of three-spined stickleback (Gasterosteus aculeatus) and monitored changes in foraging rates and related competitive …

Persistent link: https://www.econbiz.de/10008581660

A test of spatial memory and movement patterns of bumblebees at multiple spatial and temporal scales

Burns, James G.; Thomson, James D. - In: Behavioral Ecology 17 (2006) 1, pp. 48-55

these rules determine movement patterns as the scales increase. One strategy for efficient foraging used by bumblebees is … spatial memory while foraging within a patch and after how many flower visits spatial memory outweighs near-far search …

Persistent link: https://www.econbiz.de/10008581726

Preference in patchy landscapes: the influence of scale-specific intake rates and variance in reward

Searle, Kate R.; Hobbs, N. Thompson; Wunder, Bruce A.; … - In: Behavioral Ecology 17 (2006) 2, pp. 315-323

used prior knowledge gained from previous foraging bouts to assess food variability. We interpret these results as evidence … for risk-averse foraging strategies, which are predicted for continuous foragers aiming to minimize risk of starvation …

Persistent link: https://www.econbiz.de/10008581839

The Transition to Agriculture: Climate Reversals, Population Density, and Technical Change

Dow, Gregory K.; Olewiler, Nancy; Reed, Clyde G. - EconWPA - 2005

ecologically favored sites. The resulting spike in local population density reduced the marginal product of labor in foraging and …

Persistent link: https://www.econbiz.de/10005125833

A stochastic theory for the intermittent behaviour of foraging animals

Bénichou, O.; Coppey, M.; Moreau, M.; Suet, P.H.; … - In: Physica A: Statistical Mechanics and its Applications 356 (2005) 1, pp. 151-156

. It is of vital importance for foraging animals. It has been observed that many species adopt an intermittent behaviour … foraging animals. …

Persistent link: https://www.econbiz.de/10010591186

Cohabitation of juvenile females with mature males promotes sexual cannibalism in fishing spiders

Johnson, J. Chadwick - In: Behavioral Ecology 16 (2005) 1, pp. 269-273

Precopulatory sexual cannibalism, or female predation of a potential mate before mating, illustrates an extreme intersexual conflict. Unlike sexual cannibalism occurring after mating, precopulatory sexual cannibalism cannot be construed as a male strategy. Thus, research on the adaptive...

Persistent link: https://www.econbiz.de/10008577346

Patch exploitation strategies of parasitic wasps under intraspecific competition

Goubault, Marlène; Outreman, Yannick; Poinsot, Denis; … - In: Behavioral Ecology 16 (2005) 4, pp. 693-701

than when foraging alone. We tested this prediction in Pachycrepoideus vindemmiae (Hymenoptera: Pteromalidae), a solitary …

Persistent link: https://www.econbiz.de/10008581262

Bumble bees (Bombus terrestris) store both food and information in honeypots

Dornhaus, Anna; Chittka, Lars - In: Behavioral Ecology 16 (2005) 3, pp. 661-666

an influx of nectar into the nest, the colony deploys more workers for foraging. The number of new foragers depends on …

Persistent link: https://www.econbiz.de/10008581383

The group-size paradox: effects of learning and patch departure rules

Beauchamp, Guy; Fernández-Juricic, Esteban - In: Behavioral Ecology 16 (2005) 2, pp. 352-357

In many species, foraging in groups can enhance individual fitness. However, groups are often predicted to be larger …, social foraging, paradoxically, would provide little evolutionary advantages. We propose a solution to the group-size paradox …

Persistent link: https://www.econbiz.de/10008581385

The adaptive significance of stealing in a marine bird and its relationship to parental quality

Shealer, David A.; Spendelow, Jeffrey A.; Hatfield, Jeff S. - In: Behavioral Ecology 16 (2005) 2, pp. 371-376

Kleptoparasitism (food theft) is a tactic used opportunistically by many foraging birds, but little is known about its …

Persistent link: https://www.econbiz.de/10008581415