نتایج جستجو برای: floristic richness

تعداد نتایج: 22915  

Journal: :Rodriguésia 2022

Abstract The phytogeographic domains are structured by different geoclimatic (abiotic) factors, such as altitude, temperature and precipitation. Thus, our goal was to investigate the possible abiotic factors that related floristic richness of tree-shrub component throughout Chaco remnants. This study is based on data presence absence species in remnants data. In addition, World Wildlife Fund sh...

حیدری, مهدی , فرامرزی, مرزبان ,

In most ecosystems, disturbance is an important agent of variation in community structure and composition. Determining the diversity and composition of soil seed bank is essential for designing conservation and restoration programs because it can markedly contribute to future plant communities. Despite the important role of soil seed banks in the composition of different plant communities, and...

Journal: :Rodriguésia 2022

Abstract The Atlantic Forest is one of the diversity centers Melastomataceae in world, and studies have been showing great richness its species Espírito Santo, a state that once was entirely covered by this phytogeographic domain. We present here floristic survey protected area state, Municipal Natural Park São Lourenço, located at municipality Santa Teresa. also an identification key for speci...

2015
Mayank Singh Mahendra P. Singh

Present paper enumerates highlights of seasonal variation in floristic composition and ecological strategies for the management of ‘Gujar Tal’ at Jaunpur in tropical semi-arid region of eastern U.P. (India). Total composition of macrophytes recorded was 47 from 26 families with maximum 6 plant species of Cyperaceae from April, 2012 to March, 2013 at certain periodic intervals. Maximum number of...

1998
J. Alfredo Sánchez Lourdes Fernández John L. Schnase

Digital libraries can be regarded as virtual spaces in which collaborative scholarly research can be conducted. Floristic digital libraries provide such collaboration spaces for scientists working on solutions for Earth’s biodiversity problems. However, group awareness and collaboration are not easily achieved in an increasingly distributed environment such as the virtual space in which digital...

Journal: :Journal of Forestry Research 2021

Abstract Dry evergreen montane forests in Ethiopia are severely threatened. The status of species composition and structure forest vegetation important indicators to understand the trends threats on local plant communities. In present study, we examined floristic Kibate Forest, Wonchi Highland, along environmental gradients. Sixty-six (30 m × 30 m) plots were established every 100 interval alti...

2008
RIFFAT NASEEM MALIK SYED ZAHOOR HUSAIN

Agglomerative clustering, Two Way Indicator Species Analysis (WINSPAN), and Detrended Correspondence Analysis (DCA) were used for the plant community analysis. Remotely sensed data was used as a surrogate in identifying and locating field sites from where floristic composition, environmental and spatial data were collected. Characteristic plant species of each community type are presented toget...

Journal: :Check List 2021

Long-term monitoring is critical to guide conservation strategies and assess the impacts of climatic changes anthropogenic activities. In High Arctic ecosystems, information on distribution population trends plants dramatically lacking. During two field expeditions in 2018 2019, we conducted a systematic floristic survey together with opportunistic collecting polar desert surrounding Alert (Nun...

2006
Maina Kariuki Robert M. Kooyman

15 The long-term effects of logging treatments on rainforest regeneration are difficult to quantify due to 16 compounding interactions between natural dynamics, site characteristics and tree species. The aim of this 17 study was to compare regeneration differences over a 36-year period in stands subjected to various levels 18 of disturbance ranging from natural, through an increasing intensity ...

سعیدی مهرورز, شهریار , سیداخلاقی , سیدعباس, نقی‌نژاد, علی‌رضا ,

Knowledge about plant communities and their relationships with ecological factors is one of the most important issues in conservation ecology particularly in the recent decades. The current investigation aimed to study the vegetation ecology of Palangan habitat in Aghdagh Protected area, Ardabil province. In order to collect species and environmental data, a total of 45 plots along a 1500 m ele...

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