| | This journal provides immediate access to some articles. Species delimitation in systematics: inferring diagnostic differences between species. J J Wiens and M R Servedio Proc Biol Sci. 2000 April 7; 267(1444): 631–636. PMCID: PMC1690594 Long-distance colonization and radiation in gekkonid lizards, Tarentola (Reptilia: Gekkonidae), revealed by mitochondrial DNA sequences. S Carranza, E N Arnold, J A Mateo, and L F López-Jurado Proc Biol Sci. 2000 April 7; 267(1444): 637–649. PMCID: PMC1690580 Habitat loss and raptor predation: disentangling long- and short-term causes of red grouse declines. S J Thirgood, S M Redpath, D T Haydon, P Rothery, I Newton, and P J Hudson Proc Biol Sci. 2000 April 7; 267(1444): 651–656. PMCID: PMC1690583 Parasite-associated growth enhancement in a fish-cestode system. S A Arnott, I Barber, and F A Huntingford Proc Biol Sci. 2000 April 7; 267(1444): 657–663. PMCID: PMC1690587 Experimentally activated immune defence in female pied flycatchers results in reduced breeding success. P Ilmonen, T Taarna, and D Hasselquist Proc Biol Sci. 2000 April 7; 267(1444): 665–670. PMCID: PMC1690582 Crickets with extravagant mating songs compensate for predation risk with extra caution. A V Hedrick Proc Biol Sci. 2000 April 7; 267(1444): 671–675. PMCID: PMC1690585 The Bateman gradient and the cause of sexual selection in a sex-role-reversed pipefish. A G Jones, G Rosenqvist, A Berglund, S J Arnold, and J C Avise Proc Biol Sci. 2000 April 7; 267(1444): 677–680. PMCID: PMC1690589 Adaptive female choice for middle-aged mates in a lekking sandfly. T M Jones, A Balmford, and R J Quinnell Proc Biol Sci. 2000 April 7; 267(1444): 681–686. PMCID: PMC1690592 The consequences of inbreeding for recognizing competitors. C M Nevison, C J Barnard, R J Beynon, and J L Hurst Proc Biol Sci. 2000 April 7; 267(1444): 687–694. PMCID: PMC1690593 Kin recognition and the 'armpit effect': evidence of self-referent phenotype matching. J M Mateo and R E Johnston Proc Biol Sci. 2000 April 7; 267(1444): 695–700. PMCID: PMC1690595 Individual reproductive success and effective population size in the greater white-toothed shrew Crocidura russula. C Bouteiller and N Perrin Proc Biol Sci. 2000 April 7; 267(1444): 701–705. PMCID: PMC1690581 Perception of female reproductive state from vocal cues in a mammal species. S Semple and K McComb Proc Biol Sci. 2000 April 7; 267(1444): 707–712. PMCID: PMC1690584 Interspecies semantic communication in two forest primates. K Zuberbühler Proc Biol Sci. 2000 April 7; 267(1444): 713–718. PMCID: PMC1690588 Dishonest signalling in a fiddler crab. P R Backwell, J H Christy, S R Telford, M D Jennions, and N I Passmore Proc Biol Sci. 2000 April 7; 267(1444): 719–724. PMCID: PMC1690591 Testing Müllerian mimicry: an experiment with wild birds. M P Speed, N J Alderson, C Hardman, and G D Ruxton Proc Biol Sci. 2000 April 7; 267(1444): 725–731. PMCID: PMC1690586 Evidence for a rule governing the avoidance of superfluous escape flights. W Cresswell, G M Hilton, and G D Ruxton Proc Biol Sci. 2000 April 7; 267(1444): 733–737. PMCID: PMC1690590 |