English

Animal life

Climate change has had a profound effect on animal habitats, for example due to changes in plant distribution and growing conditions of the animal’s food plants. Insects and bird chicks are for instance very dependent on specific food at a given stage in their development, and if this specific food is not in sync with the developmental stages, it can have dramatic effects on the survival of those animals.

Many land, freshwater and, marine animals have changed their range, migrated to new areas or adapted to new migration patterns, seasonal activities and interactions with other animals because of climate change. Commonly, animals have moved north or up to higher elevations in mountains areas, following changes in vegetation or pray species. Temperature rises also affect water quality and impact ice cover, salinity, oxygen concentrations and currents to name a few. All this may profoundly affect the fauna of these habitats.

References:

https://www.ipcc.ch/pdf/assessment-report/ar5/syr/AR5_SYR_FINAL_SPM.pdf

http://www.vedur.is/loftslag/loftslagsbreytingar/afleidingar/

Íslenska

Dýralíf

Breytingar á loftslagi hafa víðtæk áhrif á búsetuskilyrði dýra, meðal annars vegna breytinga á útbreiðslu og vaxtarskilyrðum plantna, sem þau nærast á, blómstrun þeirra og aldinþroska. Skordýr og fuglsungar eru sem dæmi oft mjög háð ákveðinni fæðutegund á tilteknu þroskastigi og sé fæðan ekki í fasa við þroska dýranna getur illa farið.

Mörg land-, ferskvatns- og sjávardýr hafa aðlagað útbreiðslusvæði sitt, farhætti, árstíðabundnar athafnir og samskipi við önnur dýr vegna loftlagsbreytinga. Algengt er að útbreiðslusvæði dýra hafi færst nær heimskautasvæðunum eða ofar í fjalllendi en áður vegna breyttra búsetuskilyrða. Auk hækkandi hitastigs hafa breytingar á ísþekju, seltu, súrefnismagni og straumhringrás mikil áhrif á vistkerfi sjávar og ferskvatns.

Heimildir:

https://www.ipcc.ch/pdf/assessment-report/ar5/syr/AR5_SYR_FINAL_SPM.pdf

http://www.vedur.is/loftslag/loftslagsbreytingar/afleidingar/ .