نتایج جستجو برای: reestablished species
تعداد نتایج: 548717 فیلتر نتایج به سال:
Habitat degradation alters many ecosystem processes, and the potential for reestablishment of function through restoration is an area active research. Among marine systems, coastal habitats are particularly vulnerable to anthropogenic and, in response, focus ecological restoration. One crucial functions structurally complex (e.g., saltmarshes, seagrass meadows, kelp forests, coral reefs) as nur...
Abstract: Erythrina velutina Willd is a native Fabaceae with wide occurrence, mainly in the Caatinga Domain multiple uses. This study aimed to compare vulnerability/tolerance of seeds four accessions E. osmotic stresses. Four replications were conducted 25 seeds, germinated solutions NaCl or PEG up -1.73 MPa. Seeds that did not germinate after 14 days recovered distilled water. Obtained data fi...
The neutron rich $$^{123}$$ Ag nucleus was populated via induced photofission of UC $$_x$$ at the ALTO ISOL facility. Its $$\beta $$ -decay properties were studied by means detecting -delayed $$\gamma and activities. measured half-life T $$_{1/2}$$ = 0.350(20) s agreed with earlier data; emission branching P $$_{1n}$$ 1.01(24)% reestablished using counting.
Microhexura montivaga (Spruce-fir Moss Spider) is a federally endangered arachnid endemic to high-elevation montane conifer forests of the southern Appalachian Mountains. The spider cryptic and difficult monitor because this species lives in interface between bryophyte mat rock surface. Since temporary removal necessary spider, surveyors may negatively impact spider's habitat during monitoring....
Large areas of the tropics and subtropics are too arid or degraded to support food crops, but Agave species may be suitable for biofuel production in these regions. We review the potential of Agave species as biofuel feedstocks in the context of ecophysiology, agronomy, and land availability for this genus globally. Reported dry biomass yields of Agave spp., when annualized, range from o1 to 34...
DALE, V. H. 1989. Wind dispersed seeds and plant recovery on the Mount St. Helens debris avalanche. Can. J. Bot. 67: 1434-1441. Seed dispersal and plant establishment were monitored for 4 years on the debris avalanche created by the 1980 eruption of Mount St. Helens. The number of plants on the deposit increased over time to a high of almost 2 plants/m 2 by 1983. The number of species per 250-m...
An emerging pattern of similarity in medical case reports led to a project to compare the phylogenetic affinities of two well-known tropical fungal opportunistic pathogens, Cylindrocarpon lichenicola and Acremonium falciforme, to members of the Fusarium solani species complex. C. lichenicola and A. falciforme, despite their deviating conidial morphologies, were shown via sequencing of the ribos...
Transposable elements (TEs) make up a large proportion of mammalian genomes and are a strong evolutionary force capable of rewiring regulatory networks and causing genome rearrangements. Additionally, there are many eukaryotic epigenetic defense mechanisms able to transcriptionally silence TEs. Furthermore, small RNA molecules that target TE DNA sequences often mediate these epigenetic defense ...
Histone modifications are central to epigenetic regulation and must be reestablished with each round of DNA replication. Here we describe methods to localize these modifications within mammalian nuclei and to relate them to specific spatiotemporal patterns of DNA replication.
during 2010-2011 a faunistic survey was carried out for collection and identification of edaphic mesostigmatic mites (acari: mesostigmata) in jiroft and suburb. mites were extracted from soil samples by berlese funnel. the mites were cleared in nesbit fluid and were mounted in hoyer medium on microscopic slides. in this study 43 spices from 26 genera and 16 families were collected and identifie...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید