caa a22 4500 477091199 CHVBK 20180405111515.0 cr unu---uuuuu 170330e19960701xx s 000 0 eng 10.1007/BF01237729 doi (NATIONALLICENCE)springer-10.1007/BF01237729 The empirical question of thresholds and mechanisms of mate choice [Elektronische Daten] [Thomas Valone, Shawn Nordell, Luc-Alain Giraldeau, Jennifer Templeton] Summary: Theoretical discussions concerning how animals might best sample and select mates have suggested that individuals could base decisions either on a sample of mates (sampled-based decisions) or on a threshold of comparison (threshold-based decisions). Recent theoretical work demonstrates that threshold-based mating decisions generate higher expected fitness than sample-based mating decisions when search costs exist. Empirical results from most unmanipulated systems, however, either conclude that females make sample-based decisions or are inconclusive. A few experimental studies designed to detect mating thresholds purport to demonstrate threshold-based choice but an examination of these studies indicates such conclusions were premature. We believe that few examples of threshold-based choice exist because protocols designed to identify mating thresholds were often inconsistent with models of threshold choice. We suggest that future empirical work strive not to document mating thresholdsper se. Rather, future work might best reveal decision rules by manipulating the distribution of quality among potential mates; such manipulations predict uniquely how females using sample-based and threshold-based decision rules should behave. Chapman & Hall, 1996 decision rules nationallicence mate choice criteria nationallicence sample-based decisions nationallicence threshold-based decisions nationallicence sexual selection nationallicence Valone Thomas Department of Biology, California State University Northridge, 18111 Nordhoff Street, 91330-8303, Northridge, CA, USA aut Nordell Shawn Department of Biology, California State University Northridge, 18111 Nordhoff Street, 91330-8303, Northridge, CA, USA aut Giraldeau Luc-Alain Biology Department, Concordia University, 1455 ouest, Boulevard de Maisonneuve, H3W 1P4, Montréal, Quebéc, Canada aut Templeton Jennifer Biology Department, Concordia University, 1455 ouest, Boulevard de Maisonneuve, H3W 1P4, Montréal, Quebéc, Canada aut Evolutionary Ecology Kluwer Academic Publishers 10/4(1996-07-01), 447-455 0269-7653 10:4<447 1996 10 10682 https://doi.org/10.1007/BF01237729 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01237729 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Valone Thomas Department of Biology, California State University Northridge, 18111 Nordhoff Street, 91330-8303, Northridge, CA, USA aut NATIONALLICENCE 700 1- Nordell Shawn Department of Biology, California State University Northridge, 18111 Nordhoff Street, 91330-8303, Northridge, CA, USA aut NATIONALLICENCE 700 1- Giraldeau Luc-Alain Biology Department, Concordia University, 1455 ouest, Boulevard de Maisonneuve, H3W 1P4, Montréal, Quebéc, Canada aut NATIONALLICENCE 700 1- Templeton Jennifer Biology Department, Concordia University, 1455 ouest, Boulevard de Maisonneuve, H3W 1P4, Montréal, Quebéc, Canada aut NATIONALLICENCE 773 0- Evolutionary Ecology Kluwer Academic Publishers 10/4(1996-07-01), 447-455 0269-7653 10:4<447 1996 10 10682 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer