Results 91 to 100 of about 4,111 (235)

Population demography of an endangered lizard, the Blue Mountains Water Skink. [PDF]

open access: yes, 2013
BACKGROUND: Information on the age structure within populations of an endangered species can facilitate effective management. The Blue Mountains Water Skink (Eulamprus leuraensis) is a viviparous scincid lizard that is restricted to < 40 isolated ...
Chevalley, M.   +4 more
core   +2 more sources

Behavior of Rio Sao Francisco Piranhas in Response to Changes in Space and Density

open access: yesZoo Biology, Volume 44, Issue 3, Page 271-282, May/June 2025.
ABSTRACT Previous observations of Rio Sao Francisco piranhas (Pygocentrus piraya) at Cleveland Metroparks Zoo revealed frequent aggressive interactions, which were associated with the injury and death of some individuals. Fishes are known to increase aggressive behavior when available space is limited.
Ronald G. Oldfield   +4 more
wiley   +1 more source

Aceitação alimentar de resíduos do processamento de frutas por muçuas (Kinosternon scorpioides Linnaeus, 1766) em cativeiro. [PDF]

open access: yes, 2017
A utilização de resíduos agroindustriais na dieta dos quelônios é uma alternativa para diminuir os custos de produção sem comprometer o desenvolvimento e a produção animal.
ARAUJO, J. da C.   +5 more
core  

Extrativismo vegetal ou plantio: qual a opção para a Amazônia? [PDF]

open access: yes, 2020
O crescimento do mercado de produtos extrativos tem conduzido a domesticação de plantas e a descoberta de substitutos sintéticos. Outras variáveis como o crescimento populacional, a mudança nos preços relativos, a baixa produtividade da terra e da mão de
HOMMA, A. K. O.
core  

Challenges in assessing the effects of environmental governance systems on conservation outcomes

open access: yesConservation Biology, Volume 39, Issue 1, February 2025.
Abstract Effective governance is crucial for the success of conservation projects aimed at protecting wildlife populations and supporting human well‐being. However, few large‐scale, comprehensive syntheses have been conducted on the effects of different environmental governance types on conservation outcomes (i.e., biological and ecological ...
Raphael A. Ayambire   +17 more
wiley   +1 more source

Contribución al conocimiento de la reproducción de Podocnemis Lewyana Dumeril (Reptilia: Quelonia: Pelomedusidae)

open access: yesCaldasia, 1986
En Colombia se encuentran 5 especies del Género Podocnemis : P. expansa, P. lewyana, P. sextuberculata , P. unifilis y P. vogli. De estas P. lewyana es la única que se encuentra en la zona Norte de nuestro país y es endémica para la región que abarca las
Castaño Mora Olga Victoria
doaj  

Alimentación de Podocnemis Sextuberculata (Testudines: Podocnemididae) en la Reserva Mamirauá, Amazonas, Brasil

open access: yesRevista Colombiana de Ciencia Animal Recia, 2014
La alimentación es uno de los aspectos más importantes en la vida de los organismos. En el grupo de los quelonios acuáticos amazónicos del género Podocnemis este aspecto es descuidado para P. sextuberculata. En este trabajo se presentan los resultados de
AUGUSTO FACHÍN-TERÁN   +1 more
doaj   +1 more source

Parâmetros hematológicos e bioquímicos de Podocnemis erythrocephala (Reptilia: Podocnemididae) do Arquipélago de Mariuá, médio Rio Negro, Amazonas. [PDF]

open access: yes, 2011
Resumo ...
DIAS, M. T.   +5 more
core  

Evolutionary history and identification of conservation units in the giant otter, Pteronura brasiliensis. [PDF]

open access: yes, 2011
The giant otter, Pteronura brasiliensis, occupies a range including the major drainage basins of South America, yet the degree of structure that exists within and among populations inhabiting these drainages is unknown.
Ariani, C.   +19 more
core   +1 more source

Diagnosis of Illegal Trafficking Wildlife in Jurisdiction of Corporación Autónoma Regional de Cundinamarca – CAR, Cundinamarca and Boyacá, Colombia. [PDF]

open access: yes, 2016
El tráfico ilegal de fauna silvestre constituye una amenaza a la biodiversidad. Se observan diferentes usos de este recurso, los cuales varían de acuerdo a la región.
Suarez Giorgi, Carlos Andres
core  

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