The significance of land-use and land-management change in the acidification of lakes in Scotland and Norway: an assessment utilizing documentary sources and pollen analysis

Documentary sources reveal that various land-use and management changes in the catchments of six Scottish lakes during the past 200 years cannot be related to the acidification of specific lakes nor can acidification be related to any general ‘ land-use5 hypothesis. At five of the sites these conclusions are supported by pollen-derived reconstruction of catchment vegetation. In Norway, documentary evidence fails to support a ‘land-use’ hypothesis of acidification as grazing intensity has actually increased in the area where waters are most strongly acidified. It is considered that the failure to attribute acidification to catchment processes provides further evidence for an explanation in terms of acid precipitation.

2016 ◽  
Vol 11 (34) ◽  
pp. 3217-3226 ◽  
Author(s):  
Beatriz F. da Costa Angela ◽  
Francisco Araujo-Junior Cezar ◽  
Henrique Caramori Paulo ◽  
Fumiko Ubukata Yada Inês ◽  
de Conti Medina Cristiane

2020 ◽  
Vol 15 (9) ◽  
pp. 0940b2 ◽  
Author(s):  
D L Evans ◽  
J N Quinton ◽  
J A C Davies ◽  
J Zhao ◽  
G Govers

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Elena Velado-Alonso ◽  
Ignacio Morales-Castilla ◽  
Antonio Gómez-Sal

AbstractNative livestock breeds, i.e. those autochthonous to a specific region, are locally adapted domesticated animals that conserve genetic resources, guaranty food security and provide agroecosystem services. Native breeds are largely threatened worldwide by agricultural intensification and rural areas abandonment processes related to recent changes in production schemes and planning. Yet, our gap of knowledge regarding livestock breed-environment relationships may prevent the design of successful conservation measures. In this work, we analyse the links between livestock diversity -i.e. richness of native breeds- and a selection of environmental factors that express at broad scales, with a temporal perspective. We compare native breeds distributional patterns before and after the agricultural intensification, in the context of land-use change in mainland Spain. Our results confirm the existence of strong associations between the distribution of native livestock breeds and environmental factors. These links, however, weaken for contemporary distributions. In fact, changes in breed distribution reflect a shift towards more productive environments. Finally, we found that the areas having higher breed richness are undergoing land abandonment processes. Succeeding in the conservation of threatened native breeds will require going beyond merely genetic and production-oriented views. Ecological and sociocultural perspectives should also be accounted for as global change processes are determinant for livestock agrobiodiversity.


2012 ◽  
Vol 18 (7) ◽  
pp. 2089-2101 ◽  
Author(s):  
Pete Smith ◽  
Christian A. Davies ◽  
Stephen Ogle ◽  
Giuliana Zanchi ◽  
Jessica Bellarby ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e64552 ◽  
Author(s):  
Amy S. I. Wade ◽  
Boris Barov ◽  
Ian J. Burfield ◽  
Richard D. Gregory ◽  
Ken Norris ◽  
...  

BMC Ecology ◽  
2013 ◽  
Vol 13 (1) ◽  
pp. 46 ◽  
Author(s):  
David J Spurgeon ◽  
Aidan M Keith ◽  
Olaf Schmidt ◽  
Dennis R Lammertsma ◽  
Jack H Faber

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