EN
Marsh Seedeater Sporophila palustris



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- C2a(i) A2cde+3cde+4cde; C2a(i); D1

Red List history
Year Category Criteria
2016 Endangered C2a(i)
2012 Endangered C2a(i)
2008 Endangered C2a(i)
2004 Endangered
2000 Endangered
1996 Endangered
1994 Endangered
1988 Threatened
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 294,000 medium
Extent of Occurrence non-breeding (km2) 2,410,000 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 600-1700 poor estimated 2000
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 30-49 - - -
Decline (10 years/3 generation past and future) 30-49 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations - - -
Generation length (yrs) 4.8 - - -

Population justification: The population size is preliminarily estimated to fall into the band 1,000-2,499 individuals. This equates to 667-1,666 mature individuals, rounded here to 600-1,700 mature individuals.

Trend justification: A rapid and on-going population decline is suspected owing to trapping for the bird trade together with widespread habitat loss and degradation.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Argentina N Extant Yes
Brazil N Extant Yes
Paraguay N Extant Yes Yes
Uruguay N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Cuenca del río Aguapey
Argentina Estancia Mora Cué y alrededores
Argentina Rincón del Socorro-Iberá
Argentina Parque Nacional El Palmar
Argentina Perdices
Argentina Nandubaysal-El Potrero
Argentina Ceibas
Brazil Banhado São Donato
Paraguay Cerrados de Concepción
Paraguay Estero Ñu Guazú - General Artigas
Uruguay Eastern Wetlands
Uruguay Serranias del Este
Uruguay Meseta de Artigas
Paraguay Bosque Mbaracayú
Paraguay Parque Nacional San Rafael
Paraguay Arroyos y Esteros
Paraguay Campo Llano
Argentina Parque Nacional Chaco
Argentina Reserva El Bagual
Argentina Barra Concepción
Argentina Estancia Puerto Valle
Argentina Estancia San Juan Poriahú
Argentina Reserva Natural Rincón de Santa María
Argentina Parque Nacional Mburucuyá
Argentina Galarza
Argentina Selva de Montiel
Argentina Cuña boscosa de Santa Fe
Argentina Reserva Natural Otamendi, Reserva Provincial Río Lujan y alrededores
Paraguay Estancias Golondrina - El Trébol
Paraguay Cerrado de Laguna Blanca
Paraguay Tapyta
Paraguay Isla Yacyretá
Paraguay San Miguel Potrero
Argentina Pastizales de Ibicuy
Uruguay Bella Unión Grasslands
Brazil Parque Nacional das Emas
Brazil Rios Negro e Aquidauana
Brazil Itirapina
Brazil Jaguariaíva
Brazil Banhado do Maçarico e Cordões Litorâneos Adjacentes
Brazil Várzea do Canal São Gonçalo
Uruguay Arapey
Uruguay Grassland and wetlands of Negro River down basin
Argentina Extremo noreste de Corrientes
Brazil Monumento Natural das Árvores Fossilizadas e Adjacências

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subtropical/Tropical Dry major breeding
Grassland Subtropical/Tropical Dry major non-breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded major breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded major non-breeding
Altitude 0 - 1100 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Agro-industry plantations Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Unspecified species Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents - Type Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - Non-trivial Recent

Recommended citation
BirdLife International (2021) Species factsheet: Sporophila palustris. Downloaded from http://www.birdlife.org on 09/03/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/03/2021.