19.
Ishii HS, Kadoya T, Kikuchi R, Suda SI, Washitani I (in press) Habitat and flower resource partitioning by an exotic and three native bumble bees in central Hokkaido, Japan.
Biological Conservation
18.
Ishii HS, Hirabayashi Y, Kudo G (2008) Combined effects of inflorescence architecture, display size, plant density and empty flowers on bumble bee behaviour: experimental study with artificial inflorescences.
Oecologia 156: 341-350
17. Kudo G,
Ishii HS, Hirabayashi Y, Ida TY (2007) A test of the effect of floral color change on pollination effectiveness using artificial inflorescences visited by bumblebees.
Oecologia 154: 119-128
16.
Ishii HS, Harder LD (2006) The size of individual
Delphinium flowers and the opportunity for geitonogamous pollination.
Funct Ecol 20: 1115-1123
15. Hirabayashi Y,
Ishii HS, Kudo G (2006) Significance of nectar distribution on bumblebee behavior within inflorescence with reference to inflorescence architecture and display size.
Ecoscience 13: 351-359
14.
Ishii HS (2006) Floral display size influences subsequent plant choice by bumble bees.
Funct Ecol 20: 233-238
13.
Ishii HS, Morinaga SI (2005) Intra- and inter-plant level correlations among floral traits in
Iris gracilipes (Iridaceae).
Evol.Ecol 19: 435-448
12.
Ishii HS (2005) Analysis of bumblebee visitation sequences within single bouts: implication of the overstrike effect on short-term memory.
Behav Ecol Sociobiol 57: 599-610
11.
Ishii HS (2004) Increase of male reproductive components with size in an animal-pollinated hermaphrodite,
Narthecium asiaticum (Liliaceae).
Funct Ecol 18: 130-137
10. Ushimaru A, Itagaki T,
Ishii HS (2003) Floral correlations in an andromonoecious,
Commelina communis (Commelinaceae).
Plant Spec Biol 18: 103-106
9. Ushimaru A, Itagaki T,
Ishii HS (2003) Variation in floral organ size is dependent on function: a test with
Commelina communis, an andromonoecious species.
Evol Ecol Res 5: 615-622
8. Kimura T,
Ishii HS, Sakai S (2002) Selfed-seed production depending on individual size and flowering sequence in
Iris gracilipes (Iridaceae).
Can J Bot 80: 1096-1102
7.
Ishii HS, Sakai S. (2002) Temporal variation in floral display size and individual floral sex allocation in racemes of
Narthecium asiaticum (Liliaceae).
Am J Bot 89: 441-446
6. Hikosaka K, Nagamatsu D,
Ishii HS, Hirose T. (2002) Photosynthesis-nitrogen relationships in species at different altitudes of Mount Kinabalu, Malaysia.
Ecol Res 17: 305-313
5.
Ishii HS, Sakai S (2001) Implications of geitonogamous pollination for floral longevity in
Iris gracilipes (Iridaceae).
Funct Ecol 15: 633-641
4.
Ishii HS, Sakai S (2001) Effects of display size and position on individual floral longevity in racemes of
Narthecium asiaticum (Liliaceae).
Funct Ecol 15: 396-405
3.
Ishii HS, Sakai S (2000) Optimal timing of corolla abscission: experimental study on
Erythronium japonicum (Liliaceae).
Funct Ecol 14: 122-128
2. Sakai S
Ishii HS (1999) Why be completely outcrossing? Evolutionarily stable outcrossing strategies in an environment where outcross-pollen availability is unpredictable.
Evol Ecol Res 1: 211-222
1. Sakai S, Sakai A,
Ishii HS (1997) Patterns of wing size variation in seeds of the lily
Cardiocrinum cordatum (Liliaceae).
Am J Bot 84: 1275-1278