نتایج جستجو برای: واژه های کلیدی abies grandis

تعداد نتایج: 498031  

Journal: :American journal of primatology 2013
David A Ehlers Smith Simon J Husson Yvette C Ehlers Smith Mark E Harrison

Southeast Asia's lowland dipterocarp forests experience supra-annual "mast" fruiting and flowering events, in which the majority of trees reproduce simultaneously at irregular intervals, with extensive intervening periods of very low primate food availability. This scarcity of food results in a negative energy balance and a reliance on "fallback foods" in some primate species. By contrast, ombr...

2014
Steeves Buckland Nik C. Cole Jesús Aguirre-Gutiérrez Laura E. Gallagher Sion M. Henshaw Aurélien Besnard Rachel M. Tucker Vishnu Bachraz Kevin Ruhomaun Stephen Harris

The invasion of the giant Madagascar day gecko Phelsuma grandis has increased the threats to the four endemic Mauritian day geckos (Phelsuma spp.) that have survived on mainland Mauritius. We had two main aims: (i) to predict the spatial distribution and overlap of P. grandis and the endemic geckos at a landscape level; and (ii) to investigate the effects of P. grandis on the abundance and risk...

2015
Ming-Chiu Ou Yi-Hsin Liu Yung-Wei Sun Chin-Feng Chan

The chemical composition and functional activities of cold-pressed and water distilled peel essential oils of Citrus paradisi (C. paradisi) and Citrus grandis (L.) Osbeck (C. grandis) were investigated in present study. Yields of cold-pressed oils were much higher than those of distilled oils. Limonene was the primary ingredient of essential oils of C. paradisi (cold 92.83%; distilled 96.06%) a...

2015

A Abelia 131 Abelmoschus esculentus 371 Abies 112 Abies beshanzuensis 29 Abies beshanzuensis var. ziyuanensis 124 Abies delavayi 124 Abies delavayi var. motuoensis 193 Abies densa 124 Abies ernestii 122 Abies fanjingshanensis 25 Abies fargesii 124 Abies fargesii var. faxoniana 124 Abies ferreana 310 Abies firma 378 Abies forrestii 19 Abies georgei 124 Abies holophylla 152 Abies kawakamii 196 Ab...

ترکیب گونه‌های زنبورهای پارازیتویید تخم سن گندم بستگی به بوم و منطقه مورد مطالعه دارد، اما اغلب در یک محدوده‌ی زمانی و مکانی مشخص، یک یا تعداد کمی از گونه‌ها، فراوان‌تر هستند. به منظور بررسی و مقایسه پارامترهای جدول زیستی زنبورهای پارازیتوئید تخم سن گندم، تخم های پارازیته آفت در طول دوره‌ی تخم‌ریزی سن گندم از مزارع غلات استان قزوین جمع آوری شده و به آزمایشگاه بخش تحقیقات سن گندم منتقل گردید. در...

Journal: :Tree physiology 2003
Jesse B Nippert John D Marshall

Forest process models predict ecosystem responses from climate variables and physiological parameters. The parameters describe key ecosystem attributes, often as lumped averages. However, the sources and magnitude of variation in these physiological parameters are unknown, which complicates sampling if models are to be parameterized with field measurements. We measured several key parameters, w...

Journal: :Phytopathology 1999
M Garbelotto F W Cobb T D Bruns W J Otrosina T Popenuck G Slaughter

ABSTRACT The structure of Heterobasidion annosum populations was studied in 15 mixed-conifer sites in central and northern California. Study sites displayed mortality of white fir trees in enlarging discrete patches (mortality centers). At each site, fungal genotypes were defined by somatic compatibility tests. In two sites, further genetic and molecular analyses were performed on field genotyp...

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