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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
31/03/2021 |
Actualizado : |
04/05/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
HIRIGOYEN, A.; NAVARRO-CERRILLO, R.; BAGNARA, M.; FRANCO, J.; RESQUÍN, F.; RACHID, C. |
Afiliación : |
ANDRES EDUARDO HIRIGOYEN DOMINGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RAFAEL NAVARRO-CERRILLO, Department of Forestry Engineering, Laboratory of Silviculture, Dendrochronology and Climate Change, DendrodatLab- ERSAF, University of Cordoba, Córdoba; MAURIZIO BAGNARA, Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main (Germany); JORGE FRANCO, University of the Republic, Faculty of Agronomy, Paysandú (Uruguay); JOSE FERNANDO RESQUIN PEREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANA CECILIA RACHID CASNATI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Modelling taper and stem volume considering stand density in Eucalyptus grandis and Eucalyptus dunnii. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
i Forest - Biogeosciences and Forestry, 2021, Volume 14, Issue 2, Pages 127-136.OPEN ACCESS. DOI: https://doi.org/10.3832/ifor3604-014 |
DOI : |
10.3832/ifor3604-014 |
Idioma : |
Inglés |
Notas : |
Article history: Received: Jul 31, 2020 - Accepted: Jan 15, 2021. Acknowledgments: The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIAUruguay) for supporting fieldwork and the INIA Scholarship for PhD studies. We are particularly grateful for the support of Leonidas Carrasco Letelier, Roberto Scoz, Demian Gomez, Gonzalo Martinez, Jorge Basso (INIA) and Juan Gabriel Álvarez González (USC). We acknowledge the institutional support of the University of Cordoba ? Campus de Excelencia CEIA3. We also thank the ERSAF group. We thank Dr. David Walker for his revisions of the manuscript versions, and the anonymous referees for their comments and corrections. |
Contenido : |
Eucalyptus grandis and Eucalyptus dunnii are the most planted tree species in Uruguay. Anticipating information about the quantity and quality of wood is important for managing intensive forest plantation. The estimate of merchantable and total wood volume is an essential tool in forest planning and management. The aim of this study was to evaluate four systems of taper and merchantable volume that consisted in a taper, a merchantable volume and a total tree volume function. A modified second-order continuous autoregressive error structure corrected the inherent serial autocorrelation of different observations in one tree. Taper and volume equations were fitted simultaneously after autocorrelation correction by full information maximum likelihood method. The segmented system proposed by Fang et al. (2000) produced the best fit as it explained more than 98% of the taper, merchantable volume and total volume variability for both species. In addition, precision of the segmented system was compared with and without incorporating stand density as a variable. Results of this analysis showed that for E. grandis, the predictive accuracy of the model was improved by including the stand density variable, whereas for E. dunnii this variable was not statistically significant. This modelling framework provides an improvement in taper and tree volume predictions for E. dunnii and E. grandis in Uruguay. The possibilities offered by this methodology could be of interest for its application in countries where fast growing plantations are managed. MenosEucalyptus grandis and Eucalyptus dunnii are the most planted tree species in Uruguay. Anticipating information about the quantity and quality of wood is important for managing intensive forest plantation. The estimate of merchantable and total wood volume is an essential tool in forest planning and management. The aim of this study was to evaluate four systems of taper and merchantable volume that consisted in a taper, a merchantable volume and a total tree volume function. A modified second-order continuous autoregressive error structure corrected the inherent serial autocorrelation of different observations in one tree. Taper and volume equations were fitted simultaneously after autocorrelation correction by full information maximum likelihood method. The segmented system proposed by Fang et al. (2000) produced the best fit as it explained more than 98% of the taper, merchantable volume and total volume variability for both species. In addition, precision of the segmented system was compared with and without incorporating stand density as a variable. Results of this analysis showed that for E. grandis, the predictive accuracy of the model was improved by including the stand density variable, whereas for E. dunnii this variable was not statistically significant. This modelling framework provides an improvement in taper and tree volume predictions for E. dunnii and E. grandis in Uruguay. The possibilities offered by this methodology could be of interest for its application ... Presentar Todo |
Palabras claves : |
COMPATIBLE SYSTEMS; EUCALYPTUS; FOREST AND FORESTRY; INTENSIVE SILVICULTURE; SIMULTANEOUS ESTIMATION; TAPER. |
Thesagro : |
FORESTACIÓN. |
Asunto categoría : |
K10 Producción forestal |
URL : |
https://iforest.sisef.org/pdf/?id=ifor3604-014
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Marc : |
LEADER 03161naa a2200289 a 4500 001 1061913 005 2021-05-04 008 2021 bl uuuu u00u1 u #d 024 7 $a10.3832/ifor3604-014$2DOI 100 1 $aHIRIGOYEN, A. 245 $aModelling taper and stem volume considering stand density in Eucalyptus grandis and Eucalyptus dunnii.$h[electronic resource] 260 $c2021 500 $aArticle history: Received: Jul 31, 2020 - Accepted: Jan 15, 2021. Acknowledgments: The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIAUruguay) for supporting fieldwork and the INIA Scholarship for PhD studies. We are particularly grateful for the support of Leonidas Carrasco Letelier, Roberto Scoz, Demian Gomez, Gonzalo Martinez, Jorge Basso (INIA) and Juan Gabriel Álvarez González (USC). We acknowledge the institutional support of the University of Cordoba ? Campus de Excelencia CEIA3. We also thank the ERSAF group. We thank Dr. David Walker for his revisions of the manuscript versions, and the anonymous referees for their comments and corrections. 520 $aEucalyptus grandis and Eucalyptus dunnii are the most planted tree species in Uruguay. Anticipating information about the quantity and quality of wood is important for managing intensive forest plantation. The estimate of merchantable and total wood volume is an essential tool in forest planning and management. The aim of this study was to evaluate four systems of taper and merchantable volume that consisted in a taper, a merchantable volume and a total tree volume function. A modified second-order continuous autoregressive error structure corrected the inherent serial autocorrelation of different observations in one tree. Taper and volume equations were fitted simultaneously after autocorrelation correction by full information maximum likelihood method. The segmented system proposed by Fang et al. (2000) produced the best fit as it explained more than 98% of the taper, merchantable volume and total volume variability for both species. In addition, precision of the segmented system was compared with and without incorporating stand density as a variable. Results of this analysis showed that for E. grandis, the predictive accuracy of the model was improved by including the stand density variable, whereas for E. dunnii this variable was not statistically significant. This modelling framework provides an improvement in taper and tree volume predictions for E. dunnii and E. grandis in Uruguay. The possibilities offered by this methodology could be of interest for its application in countries where fast growing plantations are managed. 650 $aFORESTACIÓN 653 $aCOMPATIBLE SYSTEMS 653 $aEUCALYPTUS 653 $aFOREST AND FORESTRY 653 $aINTENSIVE SILVICULTURE 653 $aSIMULTANEOUS ESTIMATION 653 $aTAPER 700 1 $aNAVARRO-CERRILLO, R. 700 1 $aBAGNARA, M. 700 1 $aFRANCO, J. 700 1 $aRESQUÍN, F. 700 1 $aRACHID, C. 773 $ti Forest - Biogeosciences and Forestry, 2021, Volume 14, Issue 2, Pages 127-136.OPEN ACCESS. DOI: https://doi.org/10.3832/ifor3604-014
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
11/08/2016 |
Actualizado : |
09/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
GIANNITTI, F.; ANDERSON, M.; MILLER, M.; ROWE, J.; SVERLOW, K.; VASQUEZ, M.; CANTÓN, G. |
Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; University of Minnesota, Saint Paul, MN, USA; University of California, Davis, CA, USA; MARK ANDERSON, University of California, Davis, CA, USA; MYRNA MILLER, University of Wyoming, Laramie, WY, USA; JOAN ROWE, University of California, Davis, CA, USA; KAREN SVERLOW, University of California, Davis, CA, USA; MARCE VASQUEZ, University of Wyoming, Laramie, WY, USA; GERMÁN CANTÓN, INTA (Instituto Nacional de Tecnología Agropecuaria)- Balcarce. |
Título : |
Chlamydia pecorum: fetal and placental lesions in sporadic caprine abortion. (Brief Communication). |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Journal of Veterinary Diagnostic Investigation, 2016, v. 28, no. 2, p. 184-189. |
DOI : |
10.1177/1040638715625729 |
Idioma : |
Inglés |
Notas : |
Article history: First Published March 10, 2016. |
Contenido : |
ABSTRACT.
Chlamydial abortion in small ruminants is usually associated with Chlamydia abortus infection. Although Chlamydia pecorum has been detected in aborted ruminants and epidemiological data suggests that C. pecorum is abortigenic in these species, published descriptions of lesions in fetuses are lacking. This work describes fetoplacental lesions in a caprine abortion with C. pecorum infection, and further supports the abortigenic role of C. pecorum in ruminants. A 16-month-old Boer goat aborted twin fetuses at ~130 days of gestation. Both fetuses (A and B) and the placenta of fetus A were submitted for postmortem examination and diagnostic workup. At autopsy, the fetuses had moderate anasarca, intermuscular edema in the hindquarters (A), and brachygnathia and palatoschisis (B). In the placenta, the cotyledons were covered by yellow fibrinosuppurative exudate that extended into the adjacent intercotyledonary areas. Histologically, there was severe suppurative and necrotizing placentitis with vasculitis (arteriolitis) and thrombosis, multifocal lymphohistiocytic and neutrophilic hepatitis (A), and fibrinosuppurative enteritis in both fetuses. Chlamydia antigen was detected in the placenta by the direct fluorescent antibody test and in fetal intestines by immunohistochemistry. Nested polymerase chain reaction of DNA extracted from formalin-fixed, paraffin-embedded sections of placenta and intestine amplified 400 bp of the Chlamydia 16S rRNA gene that was sequenced and found to be 99% identical to C. pecorum by BLAST analysis. Other known abortigenic infectious agents were ruled out by specific testing. It is concluded that C. pecorum infection is associated with fetoplacental lesions and sporadic abortion in goats.
© 2015 The Author(s) MenosABSTRACT.
Chlamydial abortion in small ruminants is usually associated with Chlamydia abortus infection. Although Chlamydia pecorum has been detected in aborted ruminants and epidemiological data suggests that C. pecorum is abortigenic in these species, published descriptions of lesions in fetuses are lacking. This work describes fetoplacental lesions in a caprine abortion with C. pecorum infection, and further supports the abortigenic role of C. pecorum in ruminants. A 16-month-old Boer goat aborted twin fetuses at ~130 days of gestation. Both fetuses (A and B) and the placenta of fetus A were submitted for postmortem examination and diagnostic workup. At autopsy, the fetuses had moderate anasarca, intermuscular edema in the hindquarters (A), and brachygnathia and palatoschisis (B). In the placenta, the cotyledons were covered by yellow fibrinosuppurative exudate that extended into the adjacent intercotyledonary areas. Histologically, there was severe suppurative and necrotizing placentitis with vasculitis (arteriolitis) and thrombosis, multifocal lymphohistiocytic and neutrophilic hepatitis (A), and fibrinosuppurative enteritis in both fetuses. Chlamydia antigen was detected in the placenta by the direct fluorescent antibody test and in fetal intestines by immunohistochemistry. Nested polymerase chain reaction of DNA extracted from formalin-fixed, paraffin-embedded sections of placenta and intestine amplified 400 bp of the Chlamydia 16S rRNA gene that was sequenced and f... Presentar Todo |
Palabras claves : |
CHLAMYDIA; CHLAMYDIOSIS; CHLAMYDOPHILA PECORUM; FETUS; GOATS; INFECTIOUS ABORTION; PATHOLOGY; REPRODUCTIVE LOSS. |
Thesagro : |
CAPRINOS. |
Asunto categoría : |
-- |
Marc : |
LEADER 02731naa a2200325 a 4500 001 1055251 005 2019-10-09 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1177/1040638715625729$2DOI 100 1 $aGIANNITTI, F. 245 $aChlamydia pecorum$bfetal and placental lesions in sporadic caprine abortion. (Brief Communication).$h[electronic resource] 260 $c2016 500 $aArticle history: First Published March 10, 2016. 520 $aABSTRACT. Chlamydial abortion in small ruminants is usually associated with Chlamydia abortus infection. Although Chlamydia pecorum has been detected in aborted ruminants and epidemiological data suggests that C. pecorum is abortigenic in these species, published descriptions of lesions in fetuses are lacking. This work describes fetoplacental lesions in a caprine abortion with C. pecorum infection, and further supports the abortigenic role of C. pecorum in ruminants. A 16-month-old Boer goat aborted twin fetuses at ~130 days of gestation. Both fetuses (A and B) and the placenta of fetus A were submitted for postmortem examination and diagnostic workup. At autopsy, the fetuses had moderate anasarca, intermuscular edema in the hindquarters (A), and brachygnathia and palatoschisis (B). In the placenta, the cotyledons were covered by yellow fibrinosuppurative exudate that extended into the adjacent intercotyledonary areas. Histologically, there was severe suppurative and necrotizing placentitis with vasculitis (arteriolitis) and thrombosis, multifocal lymphohistiocytic and neutrophilic hepatitis (A), and fibrinosuppurative enteritis in both fetuses. Chlamydia antigen was detected in the placenta by the direct fluorescent antibody test and in fetal intestines by immunohistochemistry. Nested polymerase chain reaction of DNA extracted from formalin-fixed, paraffin-embedded sections of placenta and intestine amplified 400 bp of the Chlamydia 16S rRNA gene that was sequenced and found to be 99% identical to C. pecorum by BLAST analysis. Other known abortigenic infectious agents were ruled out by specific testing. It is concluded that C. pecorum infection is associated with fetoplacental lesions and sporadic abortion in goats. © 2015 The Author(s) 650 $aCAPRINOS 653 $aCHLAMYDIA 653 $aCHLAMYDIOSIS 653 $aCHLAMYDOPHILA PECORUM 653 $aFETUS 653 $aGOATS 653 $aINFECTIOUS ABORTION 653 $aPATHOLOGY 653 $aREPRODUCTIVE LOSS 700 1 $aANDERSON, M. 700 1 $aMILLER, M. 700 1 $aROWE, J. 700 1 $aSVERLOW, K. 700 1 $aVASQUEZ, M. 700 1 $aCANTÓN, G. 773 $tJournal of Veterinary Diagnostic Investigation, 2016$gv. 28, no. 2, p. 184-189.
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