Animalia > Chordata > Aves > Podicipediformes > Podicipedidae > Aechmophorus > Aechmophorus clarkii

Aechmophorus clarkii (Clark's Grebe)

Language: Spanish

Wikipedia Abstract

Clark's grebe (Aechmophorus clarkii) is a North American species in the grebe family. Until the 1980s, it was thought to be a pale morph of the western grebe, which it resembles in size, range, and behavior. Intermediates between the two species are known. This species nests on large inland lakes in western North America and migrates to the Pacific coast in winter. It maintains local populations year-round in California, Nevada, and Arizona (the Lower Colorado River Valley), as well as in central Mexico. It feeds by diving for carp, herring, mollusks, crabs, and salamanders.
View Wikipedia Record: Aechmophorus clarkii

Infraspecies

Aechmophorus clarkii clarkii
Aechmophorus clarkii transitionalis

EDGE Analysis

Uniqueness Scale: Similiar (0) 
9
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
34
 Unique & Vulnerable (100)
ED Score: 18.1982
EDGE Score: 2.95482
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  2.588 lbs (1.174 kg)
Birth Weight [1]  31 grams
Female Weight [1]  2.35 lbs (1.066 kg)
Male Weight [1]  2.829 lbs (1.283 kg)
Weight Dimorphism [1]  20.4 %
Breeding Habitat [2]  Freshwater marshes
Wintering Geography [2]  Western U.S./Mexico
Wintering Habitat [2]  Coastal marine, Freshwater lakes and rivers
Diet [3]  Carnivore (Invertebrates), Piscivore
Diet - Fish [3]  90 %
Diet - Invertibrates [3]  10 %
Forages - Underwater [3]  100 %
Clutch Size [5]  4
Clutches / Year [1]  1
Egg Length [1]  2.283 inches (58 mm)
Egg Width [1]  1.535 inches (39 mm)
Fledging [1]  70 days
Global Population (2017 est.) [2]  11,000
Incubation [4]  23 days
Maximum Longevity [1]  14 years
Female Maturity [1]  1 year
Male Maturity [1]  1 year

Ecoregions

Protected Areas

Ecosystems

Biodiversity Hotspots

Name Location Endemic Species Website
Atlantic Forest Argentina, Brazil, Paraguay, Uruguay No
California Floristic Province Mexico, United States No
Madrean Pine-Oak Woodlands Mexico, United States No
Mesoamerica Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama No

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 4del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 5Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0