Navigation Links
Boreal bird species of conservation concern affected by climate change
Date:12/17/2012

A protected area network should ensure the maintenance of biodiversity, but climate is changing rapidly, thereby creating further demand for the protected area network to be efficient in preserving biota. Due to climate change species ranges are expected to move polewards, which poses challenges to the protected area network.

Population changes of different bird species groups according to their habitat preferences in boreal protected areas in Finland were studied on the basis of large-scale bird censuses carried out in 1981 and in 2000. Mean temperatures rose clearly between the two time slices in Finland, for example, mean April-June temperature by 0.7 C.

The study "Preserving species populations in the boreal zone in a changing climate: contrasting trends of bird species groups in a protected area network" by Raimo Virkkala from the Finnish Environment Institute and Ari Rajasrkk from Metshallitus was published in the open access journal Nature Conservation. Bird censuses were compiled and organized by Metshallitus, which governs the stated-owned protected areas in Finland. Tens of competent ornithologists carried out the censuses, which included altogether over 11,600 km of line transects.

According to the study, population densities of common forest habitat generalists remained the same between the two periods, while densities of species of conservation concern showed contrasting trends: species preferring old-growth or mature forests increased, but those living on mires and wetlands, and species of Arctic mountains decreased.

"These trends are most probably connected with climate change, but successional changes in protected areas and regional habitat alteration should also be taken into account," says Dr Virkkala, the leading author of the study. Of species preferring old-growth or mature forests, a larger proportion are southern than among species of mires and wetlands, or of Arctic mountains, most or all of which, respectively, had a northerly distribution.

In general, northern species have decreased and southern species increased. It is suggested that climate change effects on species in natural boreal and Arctic habitats most probably are habitat-specific with large differences in response times and susceptibility. Open mires and mountain heaths change more rapidly in consequence of climate warming than old-growth forests, for which reason populations on mires and mountain heaths may also be more affected by climate change.


'/>"/>
Contact: Dr. Raimo Virkkala
raimo.virkkala@ymparisto.fi
Pensoft Publishers
Source:Eurekalert  

Related biology news :

1. 3 new species of venomous primate identified by MU researcher
2. Discovered! The new species of Borneos enigmatic primate with a toxic bite
3. Galapagos tortoises are a migrating species
4. Three new arthropod species have been found in the Maestrazgo Caves in Teruel
5. American University biologist discovers new crab species
6. At least one-third of marine species remain undescribed
7. New ancient shark species gives insight into origin of great white
8. Researchers to study impacts of pollutant nitrogen on plant species diversity
9. After long-ago mass extinction, global warming hindered species recovery
10. Report: Bushmeat pushes Southern African species to the brink
11. Major changes needed to protect Australias species and ecosystems
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Boreal bird species of conservation concern affected by climate change
(Date:1/8/2016)... LOS ANGELES and MANCHESTER, United Kingdom ... ("BBI"), a developer of innovative sensor-based diagnostic products, today ... was financed by new and existing investors.  Proceeds from the ... SEM Scanner , a hand-held device for detecting early-stage ... and Ireland after receiving CE Mark ...
(Date:1/7/2016)... -- This BCC Research report studies the global as ... identifying newer markets and exploring the expansion of the ... Includes forecast from 2015 to 2020. Use ... the expansion of the present application market for various ... technology, determine its current market size, and estimate the ...
(Date:1/7/2016)...  A United States District Court in ... country to interpret a biometric privacy statute in a ... the photo website Shutterfly brought by the law firm Carey ... vs. SHUTTERFLY, INC.; and THISLIFE, INC ( N.D. Ill ... the Illinois Biometric Privacy Act by collecting and scanning ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... ... , ... Shimadzu Scientific Instruments will showcase several new products, ... sessions, and present on the analysis of mycotoxins and medical cannabis at the ... at the Georgia World Congress Center in Atlanta, Georgia. , Attendees should ...
(Date:2/4/2016)... MONMOUTH JUNCTION, N.J. , Feb. 4, 2016 ... critical care immunotherapy leader commercializing its flagship CytoSorb® ... and cardiac surgery patients around the world, announced ... PhD, will present at the Source Capital Group,s ... overview and update on the company.  ...
(Date:2/4/2016)... , Feb. 4, 2016 ContraVir Pharmaceuticals, Inc. ... the development and commercialization of targeted antiviral therapies, announced ... Investor Conference 2016, to be held February 8-9, 2016, ... Group,s 2016 Disruptive Growth & Healthcare Conference, taking place ... 10-11, 2016. James Sapirstein , Chief Executive ...
(Date:2/4/2016)... ... February 04, 2016 , ... ... leading supplier of Semantic Graph Database technology has been recognized As “ Best ... by Corporate America Magazine. , “At Corporate America, it’s our priority to showcase ...
Breaking Biology Technology: