Dendropsophus nanus

{{short description|Species of frog}}

{{speciesbox

| image = Dendropsophus nanus.jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Steffen Reichle, Lucy Aquino, Guarino Colli, Débora Silvano, Claudia Azevedo-Ramos, Rogério Bastos |date=2004 |title=Dendropsophus nanus |volume=2004 |page=e.T55575A11320376 |doi=10.2305/IUCN.UK.2004.RLTS.T55575A11320376.en |access-date=14 November 2021}}

| taxon = Dendropsophus nanus

| authority = (Boulenger, 1889)

| synonyms = Hyla nana Boulenger, 1889

}}

Dendropsophus nanus, commonly known as dwarf treefrog, is a species of frog in the family Hylidae.

It is found in northern Argentina, Paraguay, Uruguay, eastern Bolivia, Brazil, French Guiana, and Suriname.{{cite web |url=http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Hylidae/Hylinae/Dendropsophus/Dendropsophus-nanus |title=Dendropsophus nanus (Boulenger, 1889) |author=Frost, Darrel R. |year=2014 |work=Amphibian Species of the World: an Online Reference. Version 6.0 |publisher=American Museum of Natural History |accessdate=24 June 2014}} It is very common frog occurring in many habitat types and adapting well to anthropogenic disturbance. It inhabits herbaceous vegetation at the edge of standing water. Breeding takes place in temporary waterbodies.

The diet of Argentinean Dendropsophus nanus was found to consist mostly of dipterans and spiders. During the cold periods, these frogs partly rely on their fat reserves, more so than sympatric Hypsiboas pulchellus.{{cite journal |author=Antoniazzi, Carolina Elizabet |author2=Javier Alejandro López |author3=Marta Duré |author4=Diego Alejandro Falico |year=2013 |title=Alimentación de dos especies de anfibios (Anura: Hylidae) en la estación de bajas temperaturas y su relación con la acumulación de energía en Santa Fe, Argentina (Feeding of two amphibian species (Anura: Hylidae) during the low temperatures season and its relationship with energy storage in Santa Fe, Argentina) |journal=Revista de Biología Tropical |volume=61 |issue=2 |pages=875–886 |doi=10.15517/rbt.v61i2.11231 |url=http://www.scielo.sa.cr/scielo.php?pid=S0034-77442013000300030&script=sci_arttext|doi-access=free |hdl=11336/892 |hdl-access=free }}