scholarly journals Contribution to the study of Adriatic island flora: Vascular plant species diversity in the Croatian Island of Olib

2016 ◽  
Vol 25 (1) ◽  
pp. 25-54 ◽  
Author(s):  
Milenko Milović ◽  
◽  
Sanja Kovačić ◽  
Nenad Jasprica ◽  
Vanja Stamenković ◽  
...  
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Vascular Plant ◽  
Plant Species Diversity ◽  
Vascular Plant Species ◽  
Island Flora

Plant species diversity in ravines of the southern Finger Lakes region, New York

1975 ◽  
Vol 53 (15) ◽  
pp. 1465-1472 ◽  
Author(s):  
David C. Glenn-Lewin
Keyword(s):  
New York ◽  
Species Diversity ◽  
Plant Species ◽  
Vascular Plant ◽  
Plant Species Diversity ◽  
Vascular Plant Species ◽  
Finger Lakes ◽  
Vegetation Characteristics ◽  
Lower Slope ◽  
Inverse Pattern

Vascular plant species diversity in the ravines of the southern Finger Lakes followed the ravine-side gradient and vegetation characteristics described by Lewin (1974). Bottom and lower-slope mesophytic communities were very rich in species, middle-to-upper hemlock stands were very poor in species, while the upper oak stands were again somewhat richer. Dominance followed an inverse pattern, being lowest in the low, mesophytic stands and high in the hemlock stands. The amount of hemlock in the canopy appeared to have an effect on diversity.

Woody species diversity as predictor of vascular plant species diversity in forest ecosystems

2015 ◽  
Vol 345 ◽  
pp. 50-55 ◽  
Author(s):  
Daniele Giorgini ◽  
Paolo Giordani ◽  
Gabriele Casazza ◽  
Valerio Amici ◽  
Mauro Giorgio Mariotti ◽  
...  
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Forest Ecosystems ◽  
Vascular Plant ◽  
Woody Species ◽  
Plant Species Diversity ◽  
Vascular Plant Species ◽  
Woody Species Diversity

scholarly journals Cross-Scale Analysis of the Region Effect on Vascular Plant Species Diversity in Southern and Northern European Mountain Ranges

PLoS ONE ◽  
2010 ◽  
Vol 5 (12) ◽  
pp. e15734 ◽  
Author(s):  
Jonathan Lenoir ◽  
Jean-Claude Gégout ◽  
Antoine Guisan ◽  
Pascal Vittoz ◽  
Thomas Wohlgemuth ◽  
...  
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Vascular Plant ◽  
Plant Species Diversity ◽  
Scale Analysis ◽  
Mountain Ranges ◽  
Northern European ◽  
Vascular Plant Species ◽  
European Mountain ◽  
Region Effect

IDENTIFYING CONSERVATION PRIORITY AREAS IN THE MARAÑÓN VALLEY (PERU) BASED ON FLORISTIC INVENTORIES

2015 ◽  
Vol 73 (1) ◽  
pp. 95-123 ◽  
Author(s):  
J. L. Marcelo-Peña ◽  
I. Huamantupa ◽  
T. Särkinen ◽  
M. Tomazello
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Dominant Species ◽  
Vascular Plant ◽  
Conservation Areas ◽  
Seasonally Dry ◽  
Vascular Plant Species ◽  
Nationally Representative ◽  
The One ◽  
High Level

In this study, we report species diversity and endemism of the poorly known but highly diverse Seasonally Dry Tropical Forest (SDTF) flora of the Marañón valley in northern Peru. We characterise woody vascular plant species diversity across the valley in order to define the conservation value of the area at national and international level. Based on 32 rapid botanical inventories, 92 plots of 50 × 20 m, and a herbarium study across local and international herbaria, we report 440 woody vascular plant species of which 143 (33%) are endemic to the valley. Two centres of endemism within the valley are identified, each with clear elevational zonation of diversity. Data show that the Marañón valley is a good representative of Peruvian SDTFs as a whole, with an average of 56% SDTF species and 78% SDTF genera found in the one valley. The results show that there is wide variation in the set of dominant species across the valley, and that many local endemics are locally abundant unlike in neighbouring SDTFs where the dominant species are all geographically widespread. Our results demonstrate that the Marañón includes a rare combination of both nationally representative yet globally unique plant species, which makes the valley an ideal conservation target. The high level of endemism structured within elevational zones implies that conservation areas should be established across elevational zones in order to maximise the protection of this globally unique flora.

scholarly journals The effect of Agricultural Landscape Type on Field Margin Flora in South Eastern Poland

2016 ◽  
Vol 75 (2) ◽  
pp. 217-225 ◽  
Author(s):  
Małgorzata Wrzesień ◽  
Bożena Denisow
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Plant Species ◽  
Agricultural Landscape ◽  
Vascular Plant ◽  
Detrended Correspondence Analysis ◽  
Agricultural Landscapes ◽  
Plant Species Diversity ◽  
Field Margins ◽  
Landscape Type

Abstract Plant species diversity is threatened in many agricultural landscapes due to the changes it has to undergo. Although the modification of the agricultural landscape pattern is observed across Europe, both extensive and intensive agricultural landscapes still co-exist in Poland. The objective of the study was to examine the flora in field margins in intensively and extensively managed agricultural landscapes, located across three regions in SE Poland. The flora was compared with respect to species richness, diversity, and evenness indices. Detrended correspondence analysis was employed to characterise variation in species composition. Agricultural landscape type made a higher contribution than the topography or geology to species richness and composition in field margins. Field margins function as important habitats for general vascular plant species diversity and are useful for the conservation of rare, threatened, endangered or bee plants. A significant decline in species diversity was observed over a distance of 1000 m from the habitat elements. Plants growing on field margins are mainly perennials; however participation of annuals clearly increases in intensive landscapes. The participation of wind-dispersed species decreased in an open-spaced intensive landscape. Animal-dispersed plants predominated in an extensive landscape with forest islands. Irrespective of landscape type, native species predominated. However, these habitats create the biota and corridors for alien-invasive species as well.

scholarly journals One large tree crown can be defined as a local hotspot for plant species diversity in a forest ecosystem: a case study in temperate old-growth forest

2021 ◽  
Author(s):  
Wakana. A Azuma ◽  
Natsuki Komada ◽  
Yuya Ogawa ◽  
Hiroaki Ishii ◽  
Akira Nakanishi ◽  
...  
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Vascular Plant ◽  
Plant Species Diversity ◽  
Tree Crown ◽  
Old Growth ◽  
Terrestrial Species ◽  
Large Tree ◽  
Old Growth Forest ◽  
Large Trees

Abstract Large trees have survived for a long time, and their complex crown structure serves as habitat for epiphytic plants. Canopy plants are not as well studied in the temperate zones as in the tropics, because many of them are accidental epiphytes, epiphytic individuals of normally terrestrial species. We hypothesized that the canopy can serve as a refuge for terrestrial species that have difficulty establishing on the ground (e.g., insufficient light, over-browsing), promoting and conserving forest species diversity. Terrestrial species may also vary in their ability to adapt to canopy growth conditions. Here, we investigated canopy vascular plants hosted on a large Cercidiphyllum japonicum tree in a temperate old-growth forest, Japan. The canopy plant community was diverse with 39 vascular plant species, including 31 accidental epiphytes and six threatened, obligate epiphytes. High numbers of canopy plant species, including most accidental epiphytes, were found where multiple, large reiterated trunks as well as on large horizontal branches. Canopy plants leaves exhibited higher water use efficiency and higher nitrogen concentration compared to plants on the ground, but were controlled by transpirational water loss rather than by investing in leaf nitrogen with increasing height. We found at least 14 species could escape over-browsing by establishing in the canopy and may function as seed-sources for future re-colonization on the ground. Our results show one large tree crown can be defined as a local hotspot for current and future plant species diversity in a temperate old-growth forest, reinforcing its ecological value for conservation purposes.

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