Results 111 to 120 of about 3,173 (211)

Fallen leaves on the water-bed: diurnal camouflage of three night active fish species in an Amazonian streamlet

open access: yesNeotropical Ichthyology
Resemblance to dead leaves is a well known type of camouflage recorded for several small vertebrates that dwell in the leaf and root litter on the ground.
Ivan Sazima   +3 more
doaj   +1 more source

\u3cem\u3eAnolis\u3c/em\u3e Sex Chromosomes Are Derived from A Single Ancestral Pair [PDF]

open access: yes, 2014
To explain the frequency and distribution of heteromorphic sex chromosomes in the lizard genus Anolis, we compared the relative roles of sex chromosome conservation versus turnover of sex‐determining mechanisms. We used model‐based comparative methods to
Gamble, Tony   +3 more
core   +1 more source

A portable bio-amplifier for electric fish research: design and construction

open access: yesNeotropical Ichthyology
The weak electric organ discharges (EODs) of gymnotiform knife fishes can be readily amplified with a wideband amplifier connected to submerged electrodes.
Jonathan K. Wells   +1 more
doaj   +1 more source

Comunidades de peixes da RPPN Sesc Pantanal. [PDF]

open access: yes, 2019
As comunidades de peixes ao longo de 74,75 km do rio Cuiabá e áreas circundantes, na Reserva Particular do Patrimônio Natural SESC Pantanal foram estudadas quanto à composição, diversidade, riqueza, constância de ocorrência e abundância de espécies. Para
MARQUES, D. K. S., RESENDE, E. K. de
core  

Diversidad y relaciones ecomorfol?gicas de la comunidad ?ctica del complejo de humedales de paz de ariporo hato corozal, Casanare [PDF]

open access: yes, 2018
122 p. Recurso Electr?nicoLas sabanas inundables de la cuenca del r?o Orinoco se caracterizan por tener una alta diversidad ecosist?mica, heterogeneidad estructural y funcional, contribuyendo a la conformaci?n de diferentes tipos humedales tanto l ...
Bedoya Giraldo, Daniela   +1 more
core  

Ichthyological ecoregions of Argentina [PDF]

open access: yes, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis   +2 more
core  

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