Results 1 to 10 of about 674 (95)

Cranial ecomorphology of turtles and neck retraction as a possible trigger of ecological diversification. [PDF]

Evolution, 2022
Abstract Turtles have a highly modified body plan, including a rigid shell that constrains postcranial anatomy. Skull morphology and neck mobility may therefore be key to ecological specialization in turtles. However, the ecological signal of turtle skull morphologies has not been rigorously evaluated, leaving uncertainties about the roles of ...
Hermanson G, Benson RBJ, Farina BM, Ferreira GS, Langer MC, Evers SW.   +5 more
europepmc   +2 more sources

Effects of body size on estimation of mammalian area requirements. [PDF]

Conserv Biol, 2020
Abstract Accurately quantifying species’ area requirements is a prerequisite for effective area‐based conservation. This typically involves collecting tracking data on species of interest and then conducting home‐range analyses. Problematically, autocorrelation in tracking data can result in space needs being severely underestimated.
Noonan MJ, Fleming CH, Tucker MA, Kays R, Harrison AL, Crofoot MC, Abrahms B, Alberts SC, Ali AH, Altmann J, Antunes PC, Attias N, Belant JL, Beyer DE, Bidner LR, Blaum N, Boone RB, Caillaud D, de Paula RC, de la Torre JA, Dekker J, DePerno CS, Farhadinia M, Fennessy J, Fichtel C, Fischer C, Ford A, Goheen JR, Havmøller RW, Hirsch BT, Hurtado C, Isbell LA, Janssen R, Jeltsch F, Kaczensky P, Kaneko Y, Kappeler P, Katna A, Kauffman M, Koch F, Kulkarni A, LaPoint S, Leimgruber P, Macdonald DW, Markham AC, McMahon L, Mertes K, Moorman CE, Morato RG, Moßbrucker AM, Mourão G, O'Connor D, Oliveira-Santos LGR, Pastorini J, Patterson BD, Rachlow J, Ranglack DH, Reid N, Scantlebury DM, Scott DM, Selva N, Sergiel A, Songer M, Songsasen N, Stabach JA, Stacy-Dawes J, Swingen MB, Thompson JJ, Ullmann W, Vanak AT, Thaker M, Wilson JW, Yamazaki K, Yarnell RW, Zieba F, Zwijacz-Kozica T, Fagan WF, Mueller T, Calabrese JM.   +78 more
europepmc   +2 more sources

Crescimento diferencial e nutrição em Catoprion mento (Characoidei). Peixe lepidófago da Amazônia. [PDF]

Acta Amazonica, 1979
Resumo Catoprion mento (Caracoldei) é um serrasalmídeo lepidófago que se alimenta principalmente de insetos, quando jovem; com 75 a 125 mm de comprimento padrão consome insetos e escarnas em igual porcentagem, tendo uma distinta preferência por escamas ...
Ivanzir Vieira, Jacques Géry
doaj   +2 more sources

Radiocarbon estimates of age and growth for a dominant Amazon palm species

Biotropica, Volume 55, Issue 1, Page 7-12, January 2023., 2023
We used destructive sampling to assess 14C‐calibrated age and growth of five individuals of Oenocarpus bataua Mart. (ARECACEAE) from 7.35‐21.6 m of total height. The largest individual was 59‐years old. Age decreased from the collar to the top of the aboveground stem and was positively correlated with number of leaf‐scars and height.
Daniel Magnabosco Marra, Adriano J. N. Lima, Bruna de Oliveira dos Santos, Niro Higuchi, Susan Trumbore   +4 more
wiley   +1 more source

Desenvolvimento relativo das partes do corpo de zebuínos de quatro raças [PDF]

Ciência Rural, 2001
Utilizaram-se 63 machos não-castrados, sendo 16 de cada, das raças Gir, Guzerá, e Mocho Tabapuã e 15 da raça Nelore, com média de idade 24 meses e média de pesos vivos iniciais de 376,4; 357,6, 362,0 e 368,6kg, respectivamente.
André Mendes Jorge, Carlos Augusto de Alencar Fontes   +1 more
doaj   +1 more source

Plasticity and evolution shape the scaling of metabolism and excretion along a geothermal temperature gradient

Functional Ecology, Volume 36, Issue 5, Page 1303-1314, May 2022., 2022
Read the free Plain Language Summary for this article on the Journal blog. Abstract Physiological rates are heavily dependent on temperature and body size. Most current predictions of organisms’ response to environmental warming are based on the assumption that key physiological rates such as metabolism and excretion scale independently with body size ...
Javiera N. Benavente, David C. Fryxell, Michael T. Kinnison, Eric P. Palkovacs, Kevin S. Simon   +4 more
wiley   +1 more source

Heno de alfalfa en dieta final para emú: desempenho, rendimiento de carcasa y alometría gatrointestinal

Revista Mvz Cordoba, 2023
Objetivo. Los resultados de la inclusión de heno de alfalfa en la dieta del emú fueron determinados, como un ensayo sencillo para analizar la práctica de campo de su uso como fuente de forraje similar a dietas de otras ratitas. Materiales y métodos. Los
Iago da Silva de Oliveira e Souza-Damaceno, Camilla Alves Rodrigues, Gabriela Soares Carvalho Pamplona Corte-Real, Marize Bastos de Matos, Karoll Andrea Alfonso Torres-Cordido   +4 more
doaj   +1 more source

Population structure of Rudgea parquioides (Rubiaceae), a shade-tolerant shrub species, in Southern Brazil

Anais da Academia Brasileira de Ciências, 2010
The expectations that shade-tolerant forest species show 1) a population structure composed by a high amount of small individuals, and 2) biomass allocation for diameter higher than for height growth, were tested for Rudgea parquioides, a typical shrub ...
Fernanda C.G. Cardoso, Ana P.B. Salvalaggio, Márcia C.M. Marques   +2 more
doaj   +1 more source

Crescimento relativo e composição do ganho de tecidos na carcaça de bubalinos Mediterrâneo jovens abatidos com diferentes pesos Relative growth and gain composition of carcass tissues from young Mediterranean buffaloes slaughtered at different weights

Revista Brasileira de Zootecnia, 2009
Utilizaram-se 32 bubalinos machos não-castrados, da raça Mediterrâneo, divididos aleatoriamente em cinco categorias. Os animais de uma categoria foram abatidos imediatamente, enquanto os demais foram alimentados, à vontade, com ração contendo 70% de ...
Taís Aline Bregion dos Santos, André Mendes Jorge, Cristiana Andrighetto, Caroline de Lima Francisco, Letícia Colares Vilela, Renata Bonini Pardo   +5 more
doaj   +1 more source

A comparative study of four tree species used in riparian forest restoration along Uruguay River, Brazil Um estudo comparativo entre quatro espécies arbóreas utilizadas na restauração da cobertura florestal ripária do Rio Uruguai

Revista Árvore, 2009
Silvicultural and ecological knowledge about tree species is basic to restoration planning, particularly in high diversity regions. Here we present a comparison of four native tree species from the middle Uruguay River basin, Brazil-Argentine frontier ...
Alexandre Hüller, Geraldo Ceni Coelho, Osório Antônio Lucchese, Jorge Schirmer   +3 more
doaj   +1 more source