نتایج جستجو برای: reestablished species
تعداد نتایج: 548717 فیلتر نتایج به سال:
Postfoundational political thought is characterized by a distinction between “politics” (a socio-symbolic order that delineates what knowable and thinkable) “the political” (the instantiation of order). This article critically engages with the postfoundational Jacques Rancière to rethink in context pluriverse, matrix multiple distinct yet interconnected worlds. In so doing, this challenges idea...
126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...
Redescription of Hyalella Azteca from Its Type Locality, Vera Cruz, Mexico (Amphipoda : Hyalellidae)
Hyalella azteca is a species complex distributed in North, Central, and northern South America. The identity of the species has always been a problem, especially because the original description by Saussure (1858) from a "cistern" in Vera Cruz, Mexico, is poor, and the figures are not clear. Since then, mention of the type material or specimens from the type locality has not been made by invest...
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
Despite the bounty resulting in the removal of more than 100,000 Bald Eagles from the Alaskan population during the first half of the twentieth century, Bald Eagles can be considered secure and even at saturation levels in Alaska. This is undoubtedly due to the maintenance of undisturbed, suitable habitat and an abundant food supply. Similarly, much of Canada boasts abundant Bald Eagle populati...
this checklist aims to reviews and summarize the results of the systematic and zoogeographical research on the iranian inland ichthyofauna that has been carried out for more than 200 years. since the work of j.j. heckel (1846-1849), the number of valid species has increased significantly and the systematic status of many of the species has changed, and reorganization and updating of the publish...
Lifelines and infrastructure systems are among the most critical operational components of an urban environment to ensure a minimum level post-earthquake economic societal functionality following major seismic events. The overall performance lifeline after September 19, 2017 Mw 7.1 Central Mexico earthquake was generally positive. extensive impact observed on fresh water supply network within C...
The Irminger Sea is one of the few regions in ocean where deep (>1,000 m) convection occurs. Convection followed by restratification during summer, when stratification water column reestablished and convectively formed exported at depth. There are currently no descriptions interannual variability physical drivers Sea. We investigate upper 600 m central using reanalysis data for years 1993–2019....
چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
In 2018–2019, establishment problems were encountered, after reseeding creeping bentgrass (Agrostis stolonifera) on a sand-based putting green ice encasement at the NIBIO Turfgrass Research Center, Norway. Seeds germinated, but seedlings attained purple color and died in large patches. Replacement of top 3 cm layer with new sand amended Sphagnum peat or garden compost did not solve problem. To ...
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