The effect of plant diversity and ground cover onseedling establishment of diplotaxis tenuifolia(l.) dc. in the central anatolian steppe

Download

12626235.pdf

Date

2021-2-15

Author

Kaplan, Ekin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

332
views

427
downloads

Invasive exotic plants increasingly pose a threat to native biodiversity in many parts ofthe world. However, they have rarely become successful in Turkey. One hypothesissuggests a highly diverse native flora avoids establishment of any potential invadersthrough intense competition. This hypothesis was tested through an experimentalsetup where a native plant, the Perennial Wall-rocket (Diplotaxis tenuifolia) was usedto emulate an invasion at its early stages.D. tenuifoliais a cosmopolitan floweringplant native to parts of North Africa, West Asia and Europe, and considered to beinvasive in regions such as Australia, Argentina and North America. The study tookplace at METU where ungrazed pockets of typical of Central Anatolian Steppe re-main. The experimental setup involved varying levels of reduced species richnessand/or ground cover through manipulation of the local vegetation, followed by trans-planting the “invader” species and then recording its fate as a function of native plantdiversity. Survival rates ofD. tenuifoliaseedlings were found to be significantly dif-ferent, but showed weak effects for plots with varied levels of species richness andground cover. At the end of the experiment, survival rates ofD. tenuifoliaseedlings in low, middle and high species richness categories was observed as %15.74, %18.83,and %16.36, respectively; and survival rates of low, middle and high cover categorieswas observed as %17.90, %20.68, and %12.34, respectively. This is the first studythat explores conditions for invasiveness in Turkey. While this study does not confirmour main hypothesis, it paves the way for future research on explaining why invasiveplant species are not successful in Turkey.

Subject Keywords

Central Anatolian Steppe, Invasive Species, Biodiversity

URI

https://hdl.handle.net/11511/89780

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Ecological impacts of freshwater algal blooms on water quality, plankton biodiversity, structure, and ecosystem functioning Alves Amorım, Cıhelıo; Moura, Ariadne do Nascimento (2021-03-01) Harmful algal blooms are among the emerging threats to freshwater biodiversity that need to be studied further in the Anthropocene. Here, we studied freshwater plankton communities in ten tropical reservoirs to record the impact of algal blooms, comprising different phytoplankton taxa, on water quality, plankton biodiversity, and ecosystem functioning. We compared water quality parameters (water transparency, mixing depth, pH, electrical conductivity, dissolved inorganic nitrogen, total dissolved phosphorus...
Do non-native and dominant native species carry a similar risk of invasiveness? A case study for plants in Turkey Yazlik, Ayşe; Ambarlı, Didem (2022-10-01) Most risk analysis studies in invasion biology have focused on the invasiveness of non-native species, even though some native species also can pose a high risk to the environment and human well-being. This is especially true under current global change, which may cause dominant native species to expand their range of distribution and have substantial effects on the ecosystem. In this study, the risk of invasiveness of five non-native and five native plant species in Turkey was evaluated using a standard ri...
An appraisal of biodiversity monitoring in Turkey within the framework of essential biodiversity variables Demirbaş Çağlayan , Semiha; Bilgin, Cemal Can; Zeydanlı, Uğur Siyami; Department of Earth System Science (2020-9) The survival of species, habitats, ecosystems and thus the welfare of humankind are increasingly under threat due to adverse effects of land use change, overexploitation, pollution, invasive species and climate change. Monitoring biodiversity, understanding environmental responses and analyzing trends enable us to develop urgent actions for combatting biodiversity decline, and to improve policies to cope with these global challenges. Biodiversity observation has a long history. However the dispersed s...
The Dilemma of Species Protection in Action Demirbaş Çağlayan, Semiha; Bilgin, Cemal Can (null; 2018-07-20) Species action plans (SAPs) can be effective tools in nature conservation. These guideline documents inform the status and threats of species and their habitats, and they identify and prioritize actions to enhance the species populations. They both disseminate and make use of useful relevant information by involving local stakeholders, natural resource managers, conservationists and decision makers. The Turkish Ministry of Forestry and Water Affairs aims to complete 100 SAPs between 2013 and 2023. Until mid...
Effects of climate change on biodiversity: a case study on four plant species using distribution models Beton, Damla; Bilgin, Cemal Can; Department of Biology (2011) Conservation strategies are mainly focused on species existing in an environment shaped by natural and anthropogenic pressures. Yet, evidence shows that climate is changing faster than ever and expected to continue to change in the near future, which can be devastating for plants with restricted ranges. Turkey harbors many endemic species that might be affected from these changes. However, available data is scarce and biased, complicating the anticipation of future changes. Aim of this study is to improve o...

Citation Formats

E. Kaplan, “The effect of plant diversity and ground cover onseedling establishment of diplotaxis tenuifolia(l.) dc. in the central anatolian steppe,” M.S. - Master of Science, Middle East Technical University, 2021.