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Comparative analysis of cranial suture complexity in the genus Caiman (Crocodylia, alligatoridae) BJB
MONTEIRO,L. R.; LESSA,L. G..
The variation in degrees of interdigitation (complexity) in cranial sutures among species of Caiman in different skull regions was studied by fractal analysis. Our findings show that there is a small species effect in the fractal dimension of cranial sutures, but most variation is accounted for by regional differentiation within the skull. There is also a significant interaction between species and cranial regions. The braincase sutures show higher fractal dimension than the facial skull sutures for all three species. The fractal dimension of nasal-maxilla suture is larger in Caiman latirostris than in the other species. The braincase sutures show higher fractal dimensions in C. sclerops than in the other species. The results suggest that different regions...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cranial sutures; Fractal analysis; Osteology; Caiman.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400021
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Fractal Analysis of Skeletal Muscle Tissue of Rats Subjected to Stretch Injury International Journal of Morphology
Ozaki,Guilherme; Camargo,Regina Celi Trindade; Koike,Tatiana Emy; Garcia,Thiago Alves; Castoldi,Robson Chacon; Camargo Filho,Jose Carlos Silva.
The aim of this study was to analyze changes in the skeletal muscle tissue of rats after muscle stretch injury using fractal analysis. Nineteen rats were divided into three groups, Control (n= 5) (C), Lesion two days (n= 7) (L2), and Lesion seven days (n= 7) (L7). Histological slides of the gastrocnemius muscle of the animals were prepared and stained with Hematoxylin and eosin for analysis of the inflammatory process, and picrosirius for the demonstration of collagen. The stained slides were subsequently analyzed using Fractal Dimension (FD). The results showed high FD values of the inflammatory process in the experimental groups L2 and L7 in relation to C (p= 0.000). The analysis of collagen in the picrosirius stained slides showed high FD in the L2...
Tipo: Journal article Palavras-chave: Fractal analysis; Skeletal muscle injury; Collagen; Inflammation; Pathology.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300017
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Panthers and Forests in South Florida: an Ecological Perspective Ecology and Society
Comiskey, E. Jane; University of Tennessee; ecomiske@tiem.utk.edu; Bass, Jr., Oron L; Everglades National Park; Sonny_Bass@nps.gov; Gross, Louis J; University of Tennessee; gross@tiem.utk.edu; McBride, Roy T; Livestock Protection Company;; Salinas, Rene; University of Tennessee; salinas@tiem.utk.edu.
The endangered Florida panther (Puma concolor coryi) survives in an area of pronounced habitat diversity in southern Florida, occupying extensive home ranges that encompass a mosaic of habitats. Twenty-one years of daytime monitoring via radiotelemetry have provided substantial but incomplete information about panther ecology, mainly because this method fails to capture movement and habitat use between dusk and dawn, when panthers are most active. Broad characterizations of panther habitat suitability have nonetheless been derived from telemetry-based habitat selection studies, focusing narrowly on forests where daytime resting sites are often located. The resulting forest-centered view of panthers attributed their restricted distribution and absence of...
Tipo: Peer-Reviewed Reports Palavras-chave: Felis concolor coryi; Florida panther; Puma concolor coryi; Forested habitat; Endangered species; Fractal analysis; Habitat selection; Home range; Landscape conservation; Telemetry.
Ano: 2002
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Toward a Panther-centered View of the Forests of South Florida Ecology and Society
Kerkhoff, Andrew J; University of New Mexico; kerkhoff@unm.edu; Milne, Bruce T; University of New Mexico; bmilne@sevilleta.unm.edu; Maehr, David S; University of Kentucky; dmaehr@pop.uky.edu.
Anthropogenic habitat degradation and loss is the single largest threat to the endangered Florida panther, Puma concolor coryi. Conservation of the subspecies must be undertaken on the scale of the entire landscape. Thus, a view of the forested landscape of South Florida must be developed that is meaningful with reference to the panther. We approach this problem by analyzing the spatial interactions of panthers and forests at multiple scales. We apply tools derived from fractal geometry to the analysis of 12 years of telemetry observations of panthers and remotely sensed forest cover imagery. A fractal characterization extends conventional scale-dependent measures of forest density and relates intuitively to panther ecology. To move toward a...
Tipo: Peer-Reviewed Reports Palavras-chave: Puma concolor coryi; Florida panther; Anthropogenic disturbance; Conditional mapping; Controls on distribution; Fractal analysis; Habitat selection; Landscape conservation; Organism-centered landscapes; Scale dependence; Telemetry.
Ano: 2000
Registros recuperados: 4
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