نتایج جستجو برای: fraxinus excelsior

تعداد نتایج: 1212  

Journal: :محیط زیست طبیعی 0
حمید جلیلوند دانشیار دانشگاه علوم کشاورزی و منابع طبیعی ساری زینب جعفریان دانشیار دانشگاه علوم کشاورزی و منابع طبیعی ساری مجید یوسفی کارشناس ارشد جنگل داری دانشگاه علوم کشاورزی و منابع طبیعی ساری

the aim of this study was to investigate the effect of reforestation on physical and chemical soil properties particularly soil carbon storage in the berenjastanak forest. forestations were including acer velotinum boiss., fraxinus excelsior l., populus nigra l. and pinus brutia ten. a witness forest with mixed species was selected as region potential. four soil profiles were drilled in each fo...

2017
Devrim Semizer-Cuming Erik Dahl Kjær Reiner Finkeldey

Gene flow dynamics of common ash (Fraxinus excelsior L.) is affected by several human activities in Central Europe, including habitat fragmentation, agroforestry expansion, controlled and uncontrolled transfer of reproductive material, and a recently introduced emerging infectious disease, ash dieback, caused by Hymenoscyphus fraxineus. Habitat fragmentation may alter genetic connectivity and e...

2014
Noemi López-Carreras Sandra Fernández-Vallinas Marta Miguel Amaya Aleixandre

The effect of long-term intake of different doses (20, 40, and 60 mg/kg/day) of a Fraxinus excelsior L. seed extract (FESE) on spontaneously hypertensive rats (SHR) was evaluated. Water was used as control and captopril (50 mg/kg/day) was used as positive control. Systolic blood pressure, body weight, and food and liquid intake were registered weekly in SHR. The antioxidant and vascular relaxin...

2004
Tord Snäll Anna Hagström Jörgen Rudolphi Håkan Rydin

We tested which factors explain the distribution pattern of the epiphytic moss Neckera pennata on three spatial scales using the framework of generalized linear models. First, we tested which factors explained its occurrence in forest stands in a 2500 ha landscape. At this scale, we also tested the effect of the historic landscape structure. We recorded its occurrence in all suitable stands. Th...

Journal: :Silvae Genetica 2022

Abstract Common ash ( Fraxinus excelsior L.) is an economically and ecologically important tree species in Europe acutely threatened by dieback. Here, we present a new set of Simple Sequence Repeat markers for F. six related based on published silico designed primers. Forty SSR markers, mainly from genic regions, were tested amplification polymorphism characterized two populations Germany. Tran...

Journal: :Journal of Ecology 2021

Non-native plant pests and pathogens are increasing exponentially, causing extirpation of foundation species. The impact large-scale declines in a single host on associated biodiversity is widely documented. However, the multiple loss whether these impacts multiplicative has not been assessed. Ecological theory suggests that systems with greater functional redundancy (alternative hosts) will be...

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