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Dae-Jin Lee, M. Durbán (2008)
Smooth-CAR mixed models for spatial count dataComput. Stat. Data Anal., 53
Xiaoping Jin, B. Carlin, Sudipto Banerjee (2005)
Generalized Hierarchical Multivariate CAR Models for Areal DataBiometrics, 61
S. Hussain (2009)
Basking site and water depth selection by gharial Gavialis gangeticus Gmelin 1789 (Crocodylia, Reptilia) in National Chambal Sanctuary, India and its implication for river conservationAquatic Conservation-marine and Freshwater Ecosystems, 19
D. Lytle, N. Poff (2004)
Adaptation to natural flow regimes.Trends in ecology & evolution, 19 2
M. Thoms (2003)
Floodplain–river ecosystems: lateral connections and the implications of human interferenceGeomorphology, 56
Brian Smith, G. Braulik, S. Strindberg, R. Mansur, M. Diyan, B. Ahmed (2009)
Habitat selection of freshwater‐dependent cetaceans and the potential effects of declining freshwater flows and sea‐level rise in waterways of the Sundarbans mangrove forest, BangladeshAquatic Conservation-marine and Freshwater Ecosystems, 19
V. Jain, R. Sinha (2004)
Fluvial dynamics of an anabranching river system in Himalayan foreland basin, Baghmati river, north Bihar plains, IndiaGeomorphology, 60
R. Trosper (2005)
Emergence Unites Ecology and SocietyEcology and Society, 10
G. De’ath, K. Fabricius (2000)
CLASSIFICATION AND REGRESSION TREES: A POWERFUL YET SIMPLE TECHNIQUE FOR ECOLOGICAL DATA ANALYSISEcology, 81
Gudrun Heiler, T. Hein, F. Schiemer, G. Bornette (1995)
HYDROLOGICAL CONNECTIVITY AND FLOOD PULSES AS THE CENTRAL ASPECTS FOR THE INTEGRITY OF A RIVER-FLOODPLAIN SYSTEMRegulated Rivers-research & Management, 11
D. McAllister, J. Craig, N. Davidson, S. Delany, M. Seddon (2001)
Biodiversity impacts of large dams
E. Daly, A. Porporato (2004)
A note on groundwater flow along a hillslopeWater Resources Research, 40
T. Martin, B. Wintle, J. Rhodes, P. Kuhnert, S. Field, S. Low-Choy, A. Tyre, H. Possingham (2005)
Zero tolerance ecology: improving ecological inference by modelling the source of zero observations.Ecology letters, 8 11
O. Bragg, A. Black, R. Duck, J. Rowan (2005)
Approaching the physical-biological interface in rivers: a review of methods for ecological evaluation of flow regimesProgress in Physical Geography, 29
Brian Smith, A. Haque, M. Hossain, Anisuzzaman Khan (1998)
River Dolphins in Bangladesh: Conservation and the Effects of Water DevelopmentEnvironmental Management, 22
A. Arthington, R. Naiman, M. McClain, C. Nilsson (2010)
Preserving the biodiversity and ecological services of rivers: new challenges and research opportunities: Preserving the biodiversity and ecological services of riversFreshwater Biology, 55
Munendra Singh, I. Singh, G. Müller (2007)
Sediment characteristics and transportation dynamics of the Ganga RiverGeomorphology, 86
J. Ward (1998)
RIVERINE LANDSCAPES: BIODIVERSITY PATTERNS, DISTURBANCE REGIMES, AND AQUATIC CONSERVATIONBiological Conservation, 83
L. Benda, Kevin Andras, Daniel Miller, Paul Bigelow (2004)
Confluence effects in rivers: Interactions of basin scale, network geometry, and disturbance regimesWater Resources Research, 40
D. Dudgeon, A. Arthington, M. Gessner, Z. Kawabata, D. Knowler, C. Lévêque, R. Naiman, A. Prieur‐Richard, D. Soto, M. Stiassny, C. Sullivan (2006)
Freshwater biodiversity: importance, threats, status and conservation challengesBiological Reviews, 81
Sinha Sinha, Jain Jain (1998)
Flood hazards of north Bihar rivers Indo‐gangetic plainsMemoir Geological Society of India, 41
C. Robinson, K. Tockner, J. Ward (2002)
The fauna of dynamic riverine landscapesFreshwater Biology, 47
Mihoko Minami, C. Lennert‐Cody, Wei Gao, M. Román‐Verdesoto (2006)
WORKING GROUP TO REVIEW STOCK ASSESSMENTS MODELING SHARK BYCATCH: THE ZERO-INFLATED NEGATIVE BINOMIAL REGRESSION MODEL WITH SMOOTHING
R. Reeves, S. Leatherwood (1994)
Dams and River Dolphins - Can They CoexistAMBIO: A Journal of the Human Environment, 23
A. Payne, S. Temple (1996)
River and Floodplain Fisheries in the Ganges Basin, Final Technical Report.
Brian Smith, R. Reeves (2012)
River Cetaceans and Habitat Change: Generalist Resilience or Specialist Vulnerability?Journal of Marine Biology, 2012
Minami Minami, Lennert Cody Lennert Cody, Gao Gao, Romanverdesoto Romanverdesoto (2007)
Modeling shark bycatch: the zero‐inflated negative binomial regression model with smoothingFisheries Research, 84
Alison Smith, Brian Smith (1998)
Review of status and threats to river cetaceans and recommendations for their conservationEnvironmental Reviews, 6
R. Vannote, G. Minshall, Kenneth Cummins, J. Sedell, Colbert Gushing (1980)
The River Continuum ConceptCanadian Journal of Fisheries and Aquatic Sciences, 37
C. Nilsson, C. Reidy, M. Dynesius, C. Revenga (2005)
Fragmentation and Flow Regulation of the World's Large River SystemsScience, 308
K. Tockner, J. Stanford (2002)
Riverine flood plains: present state and future trendsEnvironmental Conservation, 29
Sinha Sinha, Sharma Sharma (2003)
Current status of the Ganges river dolphin, Platanista gangetica in the rivers Kosi and Son, Bihar, IndiaJournal of the Bombay Natural History, 100
D. Dudgeon (2005)
River Rehabilitation for Conservation of Fish Biodiversity in Monsoonal AsiaEcology and Society, 10
R. Reeves, Brian Smith, T. Kasuya (2000)
Biology and conservation of freshwater cetaceans in Asia
Smith Smith, Reeves Reeves (2000)
Survey methods for population assessment of Asian river dolphinsEnvironmental Conservation, 3
G. Braulik (2006)
Status assessment of the Indus River dolphin, Platanista gangetica minor, March–April 2001Biological Conservation, 129
J. Ward, K. Tockner, F. Schiemer (1999)
Biodiversity of floodplain river ecosystems: ecotones and connectivity1Regulated Rivers-research & Management, 15
D. Dudgeon (2000)
Large-Scale Hydrological Changes in Tropical Asia: Prospects for Riverine Biodiversity, 50
A. Ellison (1996)
AN INTRODUCTION TO BAYESIAN INFERENCE FOR ECOLOGICAL RESEARCH AND ENVIRONMENTAL
Susanne Gschlößl, C. Czado (2008)
Modelling count data with overdispersion and spatial effectsStatistical Papers, 49
B. Richter, Ruth Mathews, D. Harrison, R. Wigington (2003)
ECOLOGICALLY SUSTAINABLE WATER MANAGEMENT: MANAGING RIVER FLOWS FOR ECOLOGICAL INTEGRITYEcological Applications, 13
M. Acreman, M. Dunbar (2004)
Defining environmental river flow requirements ? a reviewHydrology and Earth System Sciences, 8
V. Jain, R. Sinha (2003)
River systems in the Gangetic plains and their comparison with the Siwaliks: A reviewCurrent Science, 84
S. Choudhary, Brian Smith, Subhasis Dey, S. Dey, S. Prakash (2006)
Conservation and biomonitoring in the Vikramshila Gangetic Dolphin Sanctuary, Bihar, IndiaOryx, 40
N. Kelkar, J. Krishnaswamy, S. Choudhary, D. Sutaria (2010)
Coexistence of Fisheries with River Dolphin ConservationConservation Biology, 24
P. Döll, K. Fiedler, Jing Zhang (2009)
Global-scale analysis of river flow alterations due to water withdrawals and reservoirsHydrology and Earth System Sciences, 13
S. Bunn, A. Arthington (2002)
Basic Principles and Ecological Consequences of Altered Flow Regimes for Aquatic BiodiversityEnvironmental Management, 30
Brian Smith, R. Sinha, Ubraj Regmi (1994)
STATUS OF GANGES RIVER DOLPHINS (PLATANISTA GANGETICA) IN THE KARNALI, MAHAKALI, NARAYANI and SAPTA KOSI RIVERS OF NEPAL AND INDIA IN 1993Marine Mammal Science, 10
J. Ward, J. Stanford (1995)
Ecological connectivity in alluvial river ecosystems and its disruption by flow regulationRegulated Rivers-research & Management, 11
Brian Smith, M. Diyan, R. Mansur, E. Mansur, B. Ahmed (2010)
Identification and channel characteristics of cetacean hotspots in waterways of the eastern Sundarbans mangrove forest, BangladeshOryx, 44
M. Adel (2001)
Effect on water resources from upstream water diversion in the Ganges basin.Journal of environmental quality, 30 2
Ellison Ellison (1996)
An introduction to Bayesian inference for ecological research and environmental decision‐makingEcological Applications, 6
B. Richter, Jeffrey Baumgartner, R. Wigington, David Braun (1997)
How much water does a river needFreshwater Biology, 37
G. Vietz, I. Rutherford, M. Stewardson, B. Finlayson (2007)
Managing River Flow for Geomorphic Form: Erosion and Accretion of River Benches
C. Robert, I. Ntzoufras (2009)
Bayesian Modeling Using WinBUGSCHANCE, 25
V. Smakhtin, M. Arunachalam, Sandeep Behera, Archana Chatterjee, Srabani Das, P. Gautam, Gaurav Joshi, G. Kumbakonam, Sivaramakrishnan, K. Unni (2007)
Developing procedures for assessment of ecological status of Indian river basins in the context of environmental water requirements
Arthington Arthington, Naiman Naiman, McClain McClain, Nilsson Nilsson (2010)
Preserving the biodiversity and ecological services of rivers: new challenges and research opportunitiesFreshwater Biology, 55
A. Gelfand, J. Silander, Shanshan Wu, A. Latimer, P. Lewis, A. Rebelo, M. Holder (2006)
Explaining Species Distribution Patterns through Hierarchical ModelingBayesian Analysis, 1
S. Behera, H. Singh, V. Sagar (2013)
Status of Ganges River Dolphin (Platanista gangetica gangetica) in the Ganga River Basin, India: A reviewAquatic Ecosystem Health & Management, 16
ABSTRACT River flow regulation and fragmentation is a global threat to freshwater biodiversity, ecosystem processes, and associated human activities. Large dams in the Ganges river basin of the Indian subcontinent have severely altered natural flow regimes, particularly in the low‐flow dry season. Altered flows could have negative impacts on endangered species such as the Ganges river dolphin Platanista gangetica. Habitat use by river dolphins was investigated in relation to river channel depth and morphology, over 332 km of the flow‐regulated Gandak River in India. Dolphin distribution patterns were compared across multiple spatial scales in the Gandak, Kosi, Chambal, Sone Rivers and the upper and lower sections of the Ganges main stem. Dolphin presence was recorded in 40% of segments in the Gandak river, with a best count of 257 (range 250–267) and average individual encounter rates at 0.75 dolphins km‐1 (SD 0.89). Bayesian zero-inflated spatial models showed that river dolphin abundance was positively influenced by river depth, presence of meanders and corresponded closely with gillnet fishing. Minimum mid‐channel depth requirements were estimated at 5.2 m for dolphin adults and between 2.2 and 2.4 m for mother–calf pairs. Adult dolphins showed highly similar habitat preferences across regulated or unregulated rivers, for depths >5 m, and meandering channels. Dry‐season habitat availability was reduced as the degree of flow regulation increased across rivers, mainly owing to loss of lateral and longitudinal channel connectivity. Overall encounter rates were reduced from >3 km‐1 in less regulated stretches, to <0.3 km‐1 in regulated rivers. Clustering of dolphins in deep pools increased along the gradient of river flow reduction, with dolphins almost absent from intervening segments because of low flow rates. These results indicate the importance of maintaining adequate dry‐season flows to ensure river habitat availability and connectivity for dolphins. Copyright © 2012 John Wiley & Sons, Ltd.
Aquatic Conservation: Marine and Freshwater Ecosystems – Wiley
Published: Jan 1, 2012
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