نتایج جستجو برای: نرمافزار petrel

تعداد نتایج: 817  

2015
Marjorie Riofrío-Lazo Diego Páez-Rosas

Introduced rodents are responsible for ecosystem changes in islands around the world. In the Galapagos archipelago, their effects on the native flora and fauna are adverse, including the extinction of endemic rodents in some islands and the reduction in the reproductive success of the Galapagos petrel (Pterodroma phaeopygia) in its nesting zones. Understanding the feeding behavior of introduced...

ژورنال: :مهندسی عمران مدرس 0
حسین محمودی دوم نیاسر محمد فاروق حسینی مرتضی احمدی اسماعیل جلالی

چکیده - سد گتوند از نوع سنگریزهای بوده و در استان خوزستان روی رودخانه کارون در حال ساخت میباشد. پی سد در سازند آغاجاری قرار خواهد گرفت که شامل ماسه سنگ و گلسنگ بوده که به صورت تناوبی روی هم قرار گرفتهاند. مقاومت تکمحوره سنگهای مذکور به ترتیب برابر 15 و 25 مگاپاسکال است یعنی جزو سنگهای ضعیف و متوسط محسوب می شوند. عواملی مانند باربرداری مداوم روباره حاصل از فرسایش بر اثر جریان رودخانه و همچنین با...

Journal: :Ecology 2008
Giacomo Tavecchia Eduardo Minguez Ana De León Maite Louzao Daniel Oro

Studies on spatiotemporal pattern of population abundance predict that close populations should exhibit a high level of synchrony, reflected in a parallel time variation of at least one demographic parameter. We tested this prediction for two threatened species of Procellariiformes sharing similar life history traits: the European Storm Petrel (Hydrobates pelagicus) and the Balearic Shearwater ...

Journal: :Journal of the Yamashina Institute for Ornithology 2015

Journal: :Environmental Toxicology and Chemistry 2021

Mercury (Hg) is a toxic metal that accumulates in organisms and biomagnifies along food webs; hence, long-lived predators such as seabirds are at risk result of high Hg bioaccumulation. Seabirds have been widely used to monitor the contamination marine ecosystems. In present study, we investigated concentrations blood, muscle, feathers 7 procellariform breeding on Chatham Islands, New Zealand. ...

Journal: :Polar Biology 2022

Abstract Light-induced bird strikes on vessels occur frequently in association with areas of high seabird density, often resulting mortalities. These incidents are poorly understood and likely under-reported by vessels. Here we present the details four separate strike events (899, 206, 50 47 birds), which took place whilst (two fishing trawlers one tourist expedition ship) were navigating along...

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