Topic
Iris rossii
About: Iris rossii is a research topic. Over the lifetime, 5 publications have been published within this topic receiving 39 citations. The topic is also known as: long-tail iris.
Papers
TL;DR: Results suggest that Iris rossii can not grow in the closed, especially hardwood, canopies or tall herbaceous layer, and human interventions such as annual mowing for the restriction of the growth of dominant grasses and tree saplings are essential for the persistence of the population of the species.
Abstract: Spatial distribution, size structure and reproductive activities of a population ofIris rossii were examined in managed secondary grassland with scattered pines and hardwoods. Size structure and fecundity patterns among individuals were different between the three sites, which were an open area, under pine canopy, and under hardwood canopy. Growth and reproductive parameters of the species were significantly different at each site. In the open area, mean shoot number of individuals was 9.17, and it was 6.37 under the pine canopy and 5.63 under the hardwood canopy. Fruit set ratio was 26.8% in the open area, 21.1% under the pine canopy and 12.1% under the hardwood canopy. Six seedlings were found in the open area and one under the pine canopy, while no seedlings occurred under hardwood canopy. Most of the individuals distributed in the sites where the height of herbaceous layer was low. These results suggest thatI. rossii can not grow in the closed, especially hardwood, canopies or tall herbaceous layer. Therefore, human interventions such as annual mowing for the restriction of the growth of dominant grasses and tree saplings are essential for the persistence of the population of the species.
20 citations
TL;DR: Phylogeny revealed relationships between I. rossii and series Chinenses species and obtained the chloroplast DNA sequences and determined the phylogenetic tree.
15 citations
TL;DR: This study strongly suggests that the Baekdudaegan may have acted as a refugium for boreal and temperate species, in a similar way to the southern Appalachians in the eastern United States.
Abstract: The main Korean mountain range that stretches from north to south (the Baekdudaegan) has been suggested to harbor an important glacial refugium for boreal and temperate plant species. Under this scenario, we expect high levels of within-population genetic variation and low or moderate degree of among-population differentiation within these species. To test this hypothesis, we examined clonal diversity and levels of allozyme diversity in the boreal Iris odaesanensis and in its temperate congener Iris rossii. In addition, we compiled data on boreal and temperate species whose distribution in the Korean Peninsula is mostly centered in the Baekdudaegan to determine if there is a common pattern. We found lower clonal diversity in I. odaesanensis compared to I. rossii. Both studied species maintained high levels of genetic variation as well as a moderate genetic differentiation (%P = 52.5 and 47.5, A = 1.70 and 1.58, H
e = 0.158 and 0.150, and F
ST = 0.196 and 0.189 for I. odaesanensis and I. rossii, respectively), in line with what occurs for the species distributed on the Baekdudaegan (n = 14, %P = 46.7, A = 1.73, H
e = 0.161, and F
ST = 0.190). This study strongly suggests that the Baekdudaegan may have acted as a refugium for boreal and temperate species, in a similar way to the southern Appalachians in the eastern United States.
11 citations
1 Jan 2017
TL;DR: Iris rossii Baker, a threatened herbaceous plant in Japan, occurs in sunny habitats such as sparse pine forest and seminatural grassland, which has made major contributions to conservation as discussed by the authors.
Abstract: Iris rossii Baker, a threatened herbaceous plant in Japan, occurs in sunny habitats such as sparse pine forest and seminatural grassland. This species is distributed in China, Korea, and Japan. Because it reaches its southern limit in Japan, some I. rossii habitats have been designated as national natural monuments by the Japanese government. In these habitats, resident-initiated management is often performed, which has made major contributions to conservation. This chapter describes the relation between traditional land use and the condition of the habitat of I. rossii in a locality in southwestern Japan, the contribution of resident-initiated habitat practice and population monitoring in this locality during recent years, and current and future challenges for conservation of this species.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2017 | 1 |
| 2015 | 1 |
| 2012 | 1 |
| 1995 | 1 |
| 1993 | 1 |