RESPONSE OF AVIAN COMMUNITIES IN LARGE-RIVER FLOODPLAINS TO ENVIRONMENTAL VARIATION AT MULTIPLE SCALES

2004 ◽  
Vol 14 (5) ◽  
pp. 1394-1410 ◽  
Author(s):  
James R. Miller ◽  
Mark D. Dixon ◽  
Monica G. Turner
2019 ◽  
Vol 15 (3) ◽  
pp. 75-91 ◽  
Author(s):  
Joann Mossa ◽  
Yin-Hsuen Chen ◽  
Chia-Yu Wu

2013 ◽  
pp. 645-678 ◽  
Author(s):  
T. Dunne ◽  
R.E. Aalto

Author(s):  
Andrew Spink ◽  
Richard E. Sparks ◽  
Mark Van Oorschot ◽  
Jos T. A. Verhoeven

2016 ◽  
Vol 42 (2) ◽  
pp. 290-305 ◽  
Author(s):  
John Lewin ◽  
Philip J. Ashworth ◽  
Robert J. P. Strick

2003 ◽  
Vol 81 (6) ◽  
pp. 1096-1106 ◽  
Author(s):  
Dan Cogalniceanu ◽  
Claude Miaud

River floodplains are disturbance-dominated landscapes where floods are major regulators of both aquatic and nearby terrestrial communities. Amphibians are common inhabitants of floodplains and their life cycle depends on both aquatic and terrestrial habitats. We focused on how different syntopic species of amphibians reacted to the environmental conditions of a large river floodplain. We examined life-history traits such as population age structure and growth in small- and large-bodied species of anurans and urodeles in the lower Danube River floodplain in Romania. Two newt species, Triturus vulgaris (small-bodied) and Triturus dobrogicus (large-bodied), and two anuran taxa, Bombina bombina (small-bodied) and the Rana esculenta complex (large-bodied), were included in the study. The ages of individuals estimated by skeletochronology varied from 3 to 5–6 years for T. vulgaris and from 2–3 to 4–5 years for T. dobrogicus. In the anurans, ages varied from 2 to 5 years in B. bombina and from 4 to 10 years in the R. esculenta complex. The numbers of breeding opportunities (i.e., the number of years the adults reproduce) are similar in both newt species (3), while growth rates and age at maturity differ between the large- and small-bodied species. In anurans, the number of breeding opportunities for the smallest species, B. bombina (4), is associated with a high growth rate and earlier maturation. In the larger R. esculenta complex, the higher number of breeding opportunities (7) is associated with a low growth rate and delayed maturation. The study of age distribution and associated parameters provides useful information on population life history. We discuss how age structure and growth of amphibian populations in large river floodplains can be used as indicators of environmental conditions.


2020 ◽  
Vol 30 ◽  
pp. 71-81 ◽  
Author(s):  
Konstantin Ochs ◽  
Gregory Egger ◽  
Arnd Weber ◽  
Teresa Ferreira ◽  
John Ethan Householder ◽  
...  

Hydrobiologia ◽  
2016 ◽  
Vol 814 (1) ◽  
pp. 5-17 ◽  
Author(s):  
Mauricio E. Arias ◽  
Florian Wittmann ◽  
Pia Parolin ◽  
Michael Murray-Hudson ◽  
Thomas A. Cochrane

1998 ◽  
Vol 28 (9) ◽  
pp. 1405-1418 ◽  
Author(s):  
Matthew E Baker ◽  
Burton V Barnes

We present a classification and comparison of river floodplains using an ecological, multifactor approach integrating physiography, hydrology, soil, and vegetation within a relatively homogenous macroclimate. Aerial photographs and field reconnaissance were used to locate 22 river valley transects along nine major rivers in the Manistee National Forest, northwestern Lower Michigan. Distinct ecosystems along each transect were sampled extensively. Twenty-three floodplain ecosystem types were identified and classified primarily on the basis of physiographic systems and fluvial landforms within a regional context. Physiographic systems are broad-scale, surficial landforms characterized by distinctive form, parent material, soil, hydrologic regimes, and vegetation. We examined landscape ecosystem differences between different physiographic systems, within a physiographic system, and on a single fluvial landform. Different physiographic systems have different kinds and patterns of floodplain ecosystems in successive valley segments along a river. Within a physiographic system, the physiographic position of different fluvial landforms and ecosystem types within a single fluvial landform leads to marked ecosystem diversity laterally away from the river. The results indicate that physiography is an important determinant of floodplain ecosystem diversity and that an ecological, multifactor approach is useful in distinguishing floodplain ecosystems at multiple scales within a regional context.


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