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حيوان المرموط.. كيف تحميه طبقات الثلوج من البرد وتساعده على البقاء؟

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By المصري اليوم · 3 days ago · 1 min read المصري اليوم ↗
حيوان المرموط.. كيف تحميه طبقات الثلوج من البرد وتساعده على البقاء؟

ما يعرفه ريفو عن الخبر

  • يعتمد حيوان المرموط على طبقات الثلوج كعازل طبيعي يحميه من تقلبات درجات الحرارة أثناء السبات الشتوي.
  • يؤدي غياب الغطاء الثلجي إلى تعرض المرموط للهواء البارد مما يضطره لبذل طاقة إضافية للحفاظ على حرارته.
  • أظهرت درجات علمية تراجع أعداد المرموط الرمادي بنسبة 74% بين عامي 2007 و2016 بسبب نقص الثلوج وتداخل الجفاف.
  • يؤثر نقص الثلوج على توافر المياه للنباتات وعلى البيئة التي تعيش فيها الكائنات البرية في المناطق الجبلية.

قد يبدو تساقط الثلوج علامة على اشتداد برودة الشتاء، لكنه بالنسبة لبعض الحيوانات يمثل وسيلة أساسية للنجاة من الصقيع. في جبال كاسكيد الشمالية بولاية واشنطن الأمريكية، يعتمد حيوان الم…

المصدر: المصري اليوم

#ولاية واشنطن
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