Assessing forest fragmentation and connectivity: a case study in the Carpathians

Author(s):  
Katarzyna Ostapowicz ◽  
Christine Estreguil ◽  
Jacek Kozak ◽  
Peter Vogt
2021 ◽  
Vol 13 (6) ◽  
pp. 3246
Author(s):  
Zoe Slattery ◽  
Richard Fenner

Building on the existing literature, this study examines whether specific drivers of forest fragmentation cause particular fragmentation characteristics, and how these characteristics can be linked to their effects on forest-dwelling species. This research uses Landsat remote imaging to examine the changing patterns of forests. It focuses on areas which have undergone a high level of a specific fragmentation driver, in particular either agricultural expansion or commodity-driven deforestation. Seven municipalities in the states of Rondônia and Mato Grosso in Brazil are selected as case study areas, as these states experienced a high level of commodity-driven deforestation and agricultural expansion respectively. Land cover maps of each municipality are created using the Geographical Information System software ArcGIS Spatial Analyst extension. The resulting categorical maps are input into Fragstats fragmentation software to calculate quantifiable fragmentation metrics for each municipality. To determine the effects that these characteristics are likely to cause, this study uses a literature review to determine how species traits affect their responses to forest fragmentation. Results indicate that, in areas that underwent agricultural expansion, the remaining forest patches became more complex in shape with longer edges and lost a large amount of core area. This negatively affects species which are either highly dispersive or specialist to core forest habitat. In areas that underwent commodity-driven deforestation, it was more likely that forest patches would become less aggregated and create disjunct core areas. This negatively affects smaller, sedentary animals which do not naturally travel long distances. This study is significant in that it links individual fragmentation drivers to their landscape characteristics, and in turn uses these to predict effects on species with particular traits. This information will prove useful for forest managers, particularly in the case study municipalities examined in this study, in deciding which species require further protection measures. The methodology could be applied to other drivers of forest fragmentation such as forest fires.


2011 ◽  
Vol 62 (4) ◽  
pp. 333-343 ◽  
Author(s):  
M. Gasiński ◽  
Alfred Uchman

The Cretaceous-Paleogene boundary in turbiditic deposits identified to the bed: a case study from the Skole Nappe (Outer Carpathians, southern Poland)The Cretaceous-Paleogene (K-T) boundary has been recognized in turbiditic sediments of the Ropianka Formation in the Skole Nappe (Bąkowiec section) on the basis of planktonic foraminiferids with an accuracy of 40 cm. Such precise determination of the K-T boundary for the first time in the Carpathians and in turbiditic flysch sediments in general was possible due to the successive occurrence of the Early Paleocene planktonic taxa of the P1 Zone above the latest MaastrichtianAbathomphalus mayaroensisZone with theRacemiguembelina fructicosaSubzone. The trends in composition of the latest Maastrichtian foraminiferal assemblages are similar to the Gaj section from the adjacent thrust sheet, probably due to the influence of the same paleoenvironmental factors.


2017 ◽  
Vol 54 (3) ◽  
pp. 731-736 ◽  
Author(s):  
Jennifer M. Lucey ◽  
Georgina Palmer ◽  
Kok L. Yeong ◽  
David P. Edwards ◽  
Michael J. M. Senior ◽  
...  

2013 ◽  
Vol 294 ◽  
pp. 20-40 ◽  
Author(s):  
Andrzej Wiśniewski ◽  
Grzegorz Adamiec ◽  
Janusz Badura ◽  
Andrzej Bluszcz ◽  
Anna Kowalska ◽  
...  

2017 ◽  
Vol 32 (8) ◽  
pp. 1671-1687 ◽  
Author(s):  
Thomas Ibanez ◽  
Vanessa Hequet ◽  
Céline Chambrey ◽  
Tanguy Jaffré ◽  
Philippe Birnbaum

2018 ◽  
Vol 10 (5) ◽  
pp. 1472 ◽  
Author(s):  
Jacek Kozak ◽  
Elżbieta Ziółkowska ◽  
Peter Vogt ◽  
Monika Dobosz ◽  
Dominik Kaim ◽  
...  

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