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You searched for: Journal Ecological research Remove constraint Journal: Ecological research Publication Year 2002 Remove constraint Publication Year: 2002 Source 2002 v.17 no.5 Remove constraint Source: 2002 v.17 no.5
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1. Bark stripping of hinoki cypress by sika deer in relation to snow cover and food availability on Mt Takahara, central Japan

Author:
Ueda, Hironori; Takatsuki, Seiki; Takahashi, Yasunori
Source:
Ecological research 2002 v.17 no.5 pp. 545-551
ISSN:
0912-3814
Subject:
Cervus nippon; Chamaecyparis obtusa; bark; food availability; snow; snowpack; trees; Japan
Abstract:
... Bark stripping of hinoki cypress (Chamaecyparis obtusa (Sieb. et Zucc.) Endl.) by sika deer (Cervus nippon Temminck) was monitored for 4 years on approximately 300 trees at three sites on Mt Takahara, central Japan. We investigated the effects of snow cover and food availability on seasonal and yearly changes in bark stripping. Bark stripping occurred during snowy periods (January and February) wh ...
DOI:
10.1046/j.1440-1703.2002.00513.x

2. Base mineral inflow in a remnant cool-temperate mire ecosystem

Author:
Yabe, Kazuo; Nakamura, Takatoshi
Source:
Ecological research 2002 v.17 no.5 pp. 601-613
ISSN:
0912-3814
Subject:
Molinia; Sphagnum; calcium; correlation; correspondence analysis; drainage channels; ecosystems; electrical conductivity; forests; magnesium; mineral content; minerals; plant communities; residential areas; seasonal variation; spring; water; Japan
Abstract:
... Kiushitou (42°28′ N, 141°9′ E) is a lowland mire located in a residential area of northern Japan. We examined the 2-D distribution of hydrochemical variables and their seasonal changes in relation to plant communities in an attempt to conserve the Sphagnum fen (Sphagnum subfulvum). This mire is gently sloping and the upper area consists of alder and ash forests, while the lower area is covered wit ...
DOI:
10.1046/j.1440-1703.2002.00518.x

3. Deer browsing reduces leaf damage by herbivorous insects through an induced response of the host plant

Author:
Shimazaki, Aya; Miyashita, Tadashi
Source:
Ecological research 2002 v.17 no.5 pp. 527-533
ISSN:
0912-3814
Subject:
Cervus nippon; Viburnum dilatatum; adverse effects; browsing; deer; hardness; host plants; islands; leaves; phytophagous insects
Abstract:
... We aimed to demonstrate an indirect relationship between a mammalian herbivore (sika deer) and herbivorous insects on the induced responses of a shared host plant, Viburnum dilatatum. Field studies were conducted at three sites (i.e. two islands and one mainland) and within a deer exclusion area. One island, Kinkazan (Kz) Island, harbored a high density of deer while the other sites (controls) had ...
DOI:
10.1046/j.1440-1703.2002.00510.x

4. Habitat evaluation for crested ibis: A GIS-based approach

Author:
Li, Xinhai; Li, Dianmo; Li, Yiming; Ma, Zhijun; Zhai, Tianqing
Source:
Ecological research 2002 v.17 no.5 pp. 565-573
ISSN:
0912-3814
Subject:
Nipponia nippon; birds; geographic information systems; habitats; humans; regression analysis; rivers; topography; towns; vegetation; villages
Abstract:
... We evaluated habitat quality for crested ibis (Nipponia nippon) using a geographic information system (GIS). First, we digitized the topography map, vegetation map, river map, road map and villages/towns map by ArcInfo, and gave each map layer a suitability index based on our perceptions of the needs of crested ibis. Second, we overlayed these maps to obtain an integrated map of habitat quality. F ...
DOI:
10.1046/j.1440-1703.2002.00515.x

5. Hoarding of acorns by granivorous mice and its role in the population processes of Pasania edulis (Makino) Makino

Author:
Sone, Koichi; Hiroi, Sachiko; Nagahama, Daisuke; Ohkubo, Chiharu; Nakano, Eiji; Murao, Shun-ichi; Hata, Kunihiko
Source:
Ecological research 2002 v.17 no.5 pp. 553-564
ISSN:
0912-3814
Subject:
Apodemus argenteus; Apodemus speciosus; Lithocarpus; broadleaved evergreens; coppicing; crops; deciduous forests; fruits; germination; herbivores; mice; population dynamics; predators; seed predation; seedlings; shoots; soil; trees; Japan
Abstract:
... In order to evaluate the role of granivorous mice, Apodemus speciosus Temminck and Apodemus argenteus Temminck, in the regeneration of Pasania edulis (Makino) Makino, an evergreen tree, we conducted field studies examining acorn crops, the population dynamics and hoarding behavior of mice and pre- and postdispersal acorn predation in an evergreen broad-leaved forest dominated by P. edulis in Kagos ...
DOI:
10.1046/j.1440-1703.2002.00514.x

6. How does spittlebug oviposition affect shoot growth and bud production in two willow species?

Author:
Nozawa, Akiyoshi; Ohgushi, Takayuki
Source:
Ecological research 2002 v.17 no.5 pp. 535-543
ISSN:
0912-3814
Subject:
Aphrophora; Salix miyabeana; Salix udensis; adults; autumn; buds; compensatory growth; death; females; oviposition; ovipositor; shoots; spring
Abstract:
... We measured the effects of oviposition by the spittlebug Aphrophora pectoralis on shoot growth and bud production in two willow species, Salix miyabeana and Salix sachalinensis. In autumn, adult females of A. pectoralis insert their ovipositor into the apical region of 1-year-old shoots, resulting in the death of most shoot tips within 1 week. Consequently, an increase in the number of dead buds a ...
DOI:
10.1046/j.1440-1703.2002.00511.x

7. Light utilization and competition between Echinacea purpurea, Panicum virgatum and Ratibida pinnata under greenhouse and field conditions

Author:
Knee, Michael; Thomas, Laura C.
Source:
Ecological research 2002 v.17 no.5 pp. 591-599
ISSN:
0912-3814
Subject:
Echinacea purpurea; Panicum virgatum; Ratibida pinnata; correlation; field experimentation; greenhouse experimentation; greenhouses; light intensity; mixed stands; photosynthesis; planting; pure stands; shoots
Abstract:
... Competitive interactions were compared under field and greenhouse conditions for three representative tallgrass prairie species, Echinacea purpurea, Panicum virgatum and Ratibida pinnata. These were planted in monoculture and in mixtures of two species using a replacement series design with groups of four or eight plants. Competition was determined from shoot dry weight data collected during 120 d ...
DOI:
10.1046/j.1440-1703.2002.00517.x

8. Tree mortality of five major species on Hokkaido Island, northern Japan

Author:
Umeki, Kiyoshi
Source:
Ecological research 2002 v.17 no.5 pp. 575-589
ISSN:
0912-3814
Subject:
Abies sachalinensis; Acer pictum subsp. mono; Magnolia obovata; Quercus mongolica; Tilia japonica; forest stands; forests; models; mortality; regression analysis; tree mortality; trees; Japan
Abstract:
... The mortality rates of five major tree species (Abies sachalinensis, Acer mono, Magnolia obovata, Quercus crispula, Tilia japonica) on Hokkaido Island, northern Japan were modeled using logistic regressions based on the long-term observation of 8929 individuals in 65 permanent plots. Individual size, recent growth, one-sided and two-sided interactions with neighbors, climatic and topographic facto ...
DOI:
10.1046/j.1440-1703.2002.00516.x