Revista Brasileira De Zoologia最新文献

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Comportamento ingestivo de cordeiros e digestibilidade dos nutrientes de dietas contendo alta proporção de concentrado e diferentes fontes de fibra em detergente neutro 高精料比例和不同中性洗涤纤维来源饲粮羔羊的摄食行为和营养物质消化率
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300019
C. Q. Mendes, V. F. Turino, Ivanete Susin, A. V. Pires, Janice Barreto de Morais, Renato Shinkai Gentil
{"title":"Comportamento ingestivo de cordeiros e digestibilidade dos nutrientes de dietas contendo alta proporção de concentrado e diferentes fontes de fibra em detergente neutro","authors":"C. Q. Mendes, V. F. Turino, Ivanete Susin, A. V. Pires, Janice Barreto de Morais, Renato Shinkai Gentil","doi":"10.1590/S1516-35982010000300019","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300019","url":null,"abstract":"Two experiments were performed to determine the effects of replacing the neutral detergent fiber from sugarcane bagasse with soybean hulls neutral detergent fiber in high concentrate diets on lamb feeding behavior and apparent nutrient digestibility. In the first experiment, 60 ram lambs with 16.4 ± 0.3 kg body weight and 67 ± 2 days old were allotted to a complete randomized block design as a 2 × 2 + 1 factorial arrangement of treatments, consisting of two neutral detergent fiber sources (sugar cane bagasse or soybean hulls), two neutral detergent fiber levels (14 or 18%) and a control diet containing 100% concentrate. In the second experiment, five ram lambs were assigned to a 5 × 5 Latin square design and fed the same experimental diets as experiment one. Diets containing fiber sources increased dry matter, organic matter and neutral detergent fiber intakes and promoted longer feeding, ruminating and chewing times (minutes/day) compared to the diet containing 100% concentrate. The diets containing sugarcane bagasse increased rumination activity compared to those with soybean hulls as fiber source. However, diets containing soybean hulls showed lower chewing activity and greater nutrient digestibility compared to the sugarcane bagasse diets. Soybean hulls can be used as the sole source of additional neutral detergent fiber for lambs fed high concentrate diets.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133800277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
Ingestive behavior of Nellore cows and their straightbred or crossbred calves 内洛尔牛及其纯种或杂交小牛的摄食行为
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300026
F. M. V. Junior, F. S. Wechsler, P. Rossi, Marcus Vinicius Morais de Oliveira, P. Schmidt
{"title":"Ingestive behavior of Nellore cows and their straightbred or crossbred calves","authors":"F. M. V. Junior, F. S. Wechsler, P. Rossi, Marcus Vinicius Morais de Oliveira, P. Schmidt","doi":"10.1590/S1516-35982010000300026","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300026","url":null,"abstract":"This trial aimed to investigate the influence of calf genetic group on the ingestive behavior of Nellore dams and their offspring on pasture. Twenty one primiparous and multiparous Nellore cows were assigned to the experiment; 13 cows nursed straightbred Nellore calves; and eight cows nursed halfbred Simmental × Nellore calves. The observations started in the morning, as soon as identification of the animals in daylight was possible, and they lasted until after sunset, when identification became impossible. The observations were made at 3, 6, 12, 24 and 30 weeks after calving. The following events were continuosly observed: grazing, rumination, idleness, water and mineral intake, and suckling frequency and length.. The dams of straightbreds showed a shorter rumination time and longer idleness. Nellore calves showed shorter grazing time and higher suckling frequency. The ingestive behavior of Nellore cows on pasture is affected by the genetic group of their offspring, possibly because of the suckling frequency of the calves.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126805179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Typology and characterization of goat milk production systems in the Cariris Paraibanos Paraibanos山羊奶生产系统的类型和特征
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300027
R. Costa, Hélio Luiz Beretta Dal Monte, E. C. P. Filho, E. H. Júnior, G. R. Cruz, Marcos Paulo Carrera Menezes
{"title":"Typology and characterization of goat milk production systems in the Cariris Paraibanos","authors":"R. Costa, Hélio Luiz Beretta Dal Monte, E. C. P. Filho, E. H. Júnior, G. R. Cruz, Marcos Paulo Carrera Menezes","doi":"10.1590/S1516-35982010000300027","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300027","url":null,"abstract":"This work was aimed to identify the typology and the characteristics of the goat milk production systems. Seventy rural properties were researched. Multivariate data analysis with cluster formation techinique was used, and also the identification of five different groups of production systems. The production systems were classified through technical and economical efficiency, ranking groups 1 and 2 as high technological level, groups 3 and 4 as medium level, and the group 5 as low level. The high technological level systems used practices of more rational handling with larger technological employment becoming better specialized. These systems present the largest revenues of milk and unitary net profit. Medium technological production systems adopt technological recommendations and look for alternatives of handling practices. Production system 1 adopts intensive sanitary practices for the farmyard facilities and stables, but this does not happen in the production system 2. Vermifuge is applied three times a year in system 1 while in the system 2 it is applied twice a year. The producers of the systems 1 and 2 obtain more financial resources through official credit lines, and the producers of the group 2 are more punctual on the pay off deadlines.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115941416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Substituição do farelo de soja por farelo de algodão de alta energia em dietas para vacas leiteiras em produção: consumo, digestibilidade dos nutrientes, balanço de nitrogênio e produção leiteira 高能棉籽粕在奶牛饲粮中的替代豆粕:采食量、营养物质消化率、氮平衡和产奶量
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300012
Alisson Ferreira Alves, J. T. Zervoudakis, Luciana Keiko Hatamoto-Zervoudakis, L. Cabral, F. Leonel, Nelcino Francisco de Paula
{"title":"Substituição do farelo de soja por farelo de algodão de alta energia em dietas para vacas leiteiras em produção: consumo, digestibilidade dos nutrientes, balanço de nitrogênio e produção leiteira","authors":"Alisson Ferreira Alves, J. T. Zervoudakis, Luciana Keiko Hatamoto-Zervoudakis, L. Cabral, F. Leonel, Nelcino Francisco de Paula","doi":"10.1590/S1516-35982010000300012","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300012","url":null,"abstract":"The effect of replacing increasing levels of high-energy cottonseed meal (0, 8.7, 17.4, 26.1 and 34,8% DM) with soybean meal in concentrate for cows in the final lactation third on intake, nutrient digestibility, nitrogen efficiency and milk yield was assessed. Five crossbred 5/8 Holstein × 3/8 Gir cows were allotted to a 5 × 5 Latin square design, with five 18-day periods (eight days for adaptation and 10 days to determine intake and collect samples). The diets were formulated to have similar protein contents (14% CP), with 60% corn silage and 40% on the DM. There was no effect of including high energy cottonseed meal on the intakes of DM, organic matter (OM), crude protein (CP), total carbohydrates (TCHO) and total digestible nutrients). The EE intake increased with levels of 26.1 and 34.8% of high energy cottonseed meal inclusion, while the non-fibrous carbohydrate (NFC) intake was higher for levels of 0, 8.7 and 26.1%. The digestibility coefficients of the nutrients did not differ among the high energy cottonseed meal levels experimental diets. Replacing soybean hulls levels with high energy cottonseed meal did not influence the nitrogen use efficiency or balance, or the milk urea nitrogen content (MUN) and blood urea nitrogen (BUN). Average milk yield (14.03 kg/day) and milk yield corrected for 3.5% fat milk fat (14.68 kg/day) were not influenced by the different levels of high-energy cottonseed meal in the diet and there was no difference for feed efficiency. High-energy cottonseed meal presents potential for replacing soybean meal in the diet of cows with 15 kg/day production capacity.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122506619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Desempenho e características de carcaça de cordeiros alimentados com dietas contendo alta proporção de concentrado adicionadas de agentes tamponantes 饲粮中添加高比例精料缓冲剂的羔羊生产性能和胴体性状
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300015
Adilson Luis Gastaldello Junior, A. V. Pires, Ivanete Susin, C. Q. Mendes, Evandro Maia Ferreira, G. B. Mourão
{"title":"Desempenho e características de carcaça de cordeiros alimentados com dietas contendo alta proporção de concentrado adicionadas de agentes tamponantes","authors":"Adilson Luis Gastaldello Junior, A. V. Pires, Ivanete Susin, C. Q. Mendes, Evandro Maia Ferreira, G. B. Mourão","doi":"10.1590/S1516-35982010000300015","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300015","url":null,"abstract":"The objective of this study was to assess the effects of adding sodium bicarbonate or limestone sources with different particle sizes to the diet, and their interaction with sodium monensin, on the performance and carcass characteristics of feedlot lambs fed fed high grain diets. Forty two Santa Ines lambs were used with 21 ± 3 kg initial average body weight and 88 ± 5 days old in feedlot, placed a randomized complete block design in a 2 × 3 factorial arrangement with six treatments and seven replications. Animals were fed diet containing 90% concentrate, 10% \"coastcross\" hay, with one source of limestone (limestone or \"filler\" limestone) or sodium bicarbonate (NaHCO3), with or without monensin (30 mg/kg DM). No influence was observed of the buffering agents on dry matter intake or average daily gain. However, the feed conversion of the animals fed diet containing sodium monensin (3.34 kg DM/kg gain) was better than those fed diets containing monensin (3.32 kg DM/kg gain) compared to diets without monensin (3.58 kg DM/kg gain). There was no effect of the buffering agents on the carcass characteristics assessed: the mean values were 50.4%, 2.42%, 13.9 cm2 and 1.9 mm hot carcass weight, chilling losses, longissimus muscle area and fat thickness, respectively. Adding monensin to the diet improves feed conversion and may make the feedlot lambs system more profitable.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128684466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Correlações entre número de perfilhos, índice de tombamento, massa dos componentes morfológicos e valor nutritivo da forragem em pastos diferidos de capim-braquiária 延迟腕草分蘖数、倾卸指数、形态成分质量与营养价值的相关性
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300006
Manoel Eduardo Rozalino Santos, D. M. Fonseca, I. M. Oliveira, D. R. Casagrande, Eric Márcio Balbino, Fabrício Paiva de Freitas
{"title":"Correlações entre número de perfilhos, índice de tombamento, massa dos componentes morfológicos e valor nutritivo da forragem em pastos diferidos de capim-braquiária","authors":"Manoel Eduardo Rozalino Santos, D. M. Fonseca, I. M. Oliveira, D. R. Casagrande, Eric Márcio Balbino, Fabrício Paiva de Freitas","doi":"10.1590/S1516-35982010000300006","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300006","url":null,"abstract":"The objective of this study was to evaluate correlations between the structural characteristics and nutritional value of different U. decumbens cv. Basilisk pastures. The experiment was carried out in a split-plot design following a randomized block design with two replications. The treatments were combinations among the different pasture periods (73, 103, 131 and 163 days) and the grazing periods (1, 29, 57 and 85 days). The green leaf blade matter (GLB) correlated positively with the percentages of crude protein (CP), potentially digestible neutral detergent fiber (PDNDF) and potentially digestible dry matter (PDDM), but correlated negatively with neutral detergent fiber (NDF) and indigestible neutral detergent fiber (INDF). Dead stem (DS) correlations were inverse to those obtained for green leaf blade. For vegetative tillering (VT), positive correlations were found with CP and PDDM; negative correlations were found for NDF and INDF of the forage. Dead tiller (DT), correlated positively with NDF and INDF of the forage and negative association with the CP, PDNDF and PDDM rates. The falling index (FI) correlated negatively with the number of VT and correlated positively with the number of reproductive tillers (RT) and dead tillers (DT). The falling index also correlated positively with the NDF and INDF rates and negatively with CP and PDDM. The structural characteristics of the different pasture were associated to their nutritive value. Management actions which result in a reduction in the dead stem matter and the numbers of dead tillers and reproductive tillers contribute to improve the structure and nutritional value of the different pasture.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128682875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Efeitos do local de deposição do sêmen e do intervalo inseminação/ ovulação sobre a fertilidade de éguas inseminadas com sêmen fresco diluído 精液沉积位置和授精/排卵间隔对新鲜稀释精液授精母马生育能力的影响
Revista Brasileira De Zoologia Pub Date : 2010-03-01 DOI: 10.1590/S1516-35982010000300009
I. G. Xavier, J. C. S. Filho, G. R. Carvalho, Maristela Silveira Palhares, R. Rossi, A. P. Siqueira
{"title":"Efeitos do local de deposição do sêmen e do intervalo inseminação/ ovulação sobre a fertilidade de éguas inseminadas com sêmen fresco diluído","authors":"I. G. Xavier, J. C. S. Filho, G. R. Carvalho, Maristela Silveira Palhares, R. Rossi, A. P. Siqueira","doi":"10.1590/S1516-35982010000300009","DOIUrl":"https://doi.org/10.1590/S1516-35982010000300009","url":null,"abstract":"The effect of the interval from artificial insemination to ovulation on mare fertility rates was studied, taking account the semen deposition site. The intervals were 48 hours and 24 hours prior to ovulation, 48 hours and 72 hours between the two last inseminations. The inseminations in the tip of the uterine horn (GII) were carried out by the deep intravaginal technique using 1/5 of the inseminating dose used in the uterine body (15mL-GI). The mares were teased daily and inseminated on Mondays, Wednesdays and Fridays, starting with a follicle from 3.0 to 3.5 cm of diameter, using fresh semen diluted in skim milk glucose extender. Only one stallion of 20 year-old and well-known fertility was utilized. There was no difference in the conception rates/cycles between the inseminations carried out in the uterine body (42.86%) and in the tip of the uterine horn (45.95%) utilizing average concentrations of 489 and 102 million mobile spermatozoa, respectively. No differences were observed between experimental groups for the same artificial/ovulation interval, but when the conception rates were between intervals in the same semen deposition place, lower conception rates were associated to inseminations carried out before ovulation. However, artificial insemination carried out before and after ovulation, regardless of the artificial insemination/ovulation intervals, resulted in better conception rates. The spermatic concentrations/inseminating dose can be significantly reduced, without damaging fertility, when the semen is placed close to the tubaric papille. However, inseminations are needed before and after ovulation to obtain better fertility rates when using low viability semen in the mare genital tract, in order to establish an adequate sperm reservoir at the time of ovulation.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128764949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Estrutura populacional e biologia reprodutiva de Parastacus defossus (Crustacea: Decapoda: Parastacidae) 甲壳纲:十足纲:副足科的种群结构与生殖生物学
Revista Brasileira De Zoologia Pub Date : 2008-12-01 DOI: 10.1590/S0101-81752008000400007
Clarissa Köhler Noro, L. Buckup
{"title":"Estrutura populacional e biologia reprodutiva de Parastacus defossus (Crustacea: Decapoda: Parastacidae)","authors":"Clarissa Köhler Noro, L. Buckup","doi":"10.1590/S0101-81752008000400007","DOIUrl":"https://doi.org/10.1590/S0101-81752008000400007","url":null,"abstract":"This study investigates the population structure and the reproductive biology of Parastacus defossus Faxon, 1898, a fossorial species that spends its life inside subterranean tunnels. Around 30 specimens were collected each month in the region of Lami, municipality of Porto Alegre, state of Rio Grande do Sul, Brazil, from January, 2003 to August, 2005. The minimum, the maximum, and the mean carapace length of males, females, juveniles and individuals with ootestis were recorded. The frequency distribution by size classes, the sexual proportion, the recruitment, and the reproductive period were analyzed. A total of 766 specimens were collected, from which 315 were males (41.12%), 278 were females (36.30%), 166 were juveniles (21.67%), and seven individuals had ootestis (0.91%). Males and females were present in all months and in all size classes. The highest frequency of individuals matched the size classes from 24 to 30 mm. The highest frequency of juveniles was recorded during the spring of 2003 and the summer 2005. Significant differences in the size of males and females were recorded in the size classes between 26 and 30 mm. The sex ratio between all males and females was 1:0.88 (x2 = 2.3, p > 0.05). The proportion between males and females showed significant differences between the size classes 26-28 mm (x2 = 5.43, p < 0.05) and 28-30 mm (x2 = 4.77, p < 0.05) carapace length, were the number of males was highest. Of the 278 females, only 17 were ovigerous (6.11%) and the reproductive period was clearly restricted to the spring.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114716227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Characterization of the types of the Neotropical Pseudisobrachium (Hymenoptera: Bethylidae), with a key to species 新热带伪卷腹蜂属(膜翅目:卷腹蜂科)的类型特征及种键
Revista Brasileira De Zoologia Pub Date : 2008-12-01 DOI: 10.1590/s0101-81752008000400020
C. Azevedo
{"title":"Characterization of the types of the Neotropical Pseudisobrachium (Hymenoptera: Bethylidae), with a key to species","authors":"C. Azevedo","doi":"10.1590/s0101-81752008000400020","DOIUrl":"https://doi.org/10.1590/s0101-81752008000400020","url":null,"abstract":"The identity of many Neotropical species of Pseudisobrachium Kieffer, 1904 is currently unreachable, mostly because the available descriptions and illustrations are not sufficiently accurate to allow precise identifications. To help solve the problem, 115 valid species and their junior synonyms were examined. Twelve nomenclatural acts are made, and 110 valid species are recognized for the Neotropical region. Two lectotypes are designated: Pristocera crassicornis Westwood and Pristocera haemorrhoidalis Westwood. Seven new species-group synonyms are proposed: Pseudisobrachium retusum Evans syn. nov. for P. pauxillum Evans; P. cunco Perez syn. nov. for P. erythrocephalum Evans; P. navajo Evans, P. rectangulatum Evans, P. emarginatum Evans and P. foutsi Evans syn. nov. for P. flavinervis Fouts; P. acuminatum Waichert & Azevedo syn. nov. for P. latum Waichert & Azevedo. The following new genus-group synonym is established: Parisobrachium Kieffer syn. nov. for Dissomphalus Ashmead. The following new combination and reinstated name are proposed: Dissomphalus albipes (Kieffer) comb. nov. and nom. rev. from Pseudisobrachium paraguayense Kieffer.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131972473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Variao morfolgica de pegadas de roedores arborcolas e cursoriais do Cerrado
Revista Brasileira De Zoologia Pub Date : 2008-12-01 DOI: 10.1590/S0101-81752008000400015
Nícholas F. de Camargo, Rodrigo Gurgel-Gonçalves, Alexandre Palma
{"title":"Variao morfolgica de pegadas de roedores arborcolas e cursoriais do Cerrado","authors":"Nícholas F. de Camargo, Rodrigo Gurgel-Gonçalves, Alexandre Palma","doi":"10.1590/S0101-81752008000400015","DOIUrl":"https://doi.org/10.1590/S0101-81752008000400015","url":null,"abstract":"Considering that species of rodents have different means of locomotion, this study presents and discusses variations on the anterior and posterior footprints shape of seven species [Akodon cursor (Winge, 1887), Necromys lasiurus (Lund, 1840), Oecomys bicolor (Tomes, 1860), Oecomys concolor (Wagner, 1845), Oligoryzomys nigripes (Olfers, 1818), Hylaeamys megacephalus (Fischer, 1814) and Rhipidomys macrurus (Gervais, 1855)], using geometric morphometrics and discriminant analyses. Shape variables were related to phylogenetic topology and means of locomotion of the species to verify the influence of historical or ecological factors on footprints morphology. Footprints shape of the arboreal rodents (short and wide) was clearly distinct of cursorial ones (narrow and elongated). The anterior (Kappa = 0,72) and posterior (Kappa = 0,88) footprint reclassification was considered substantial and almost perfect, respectively. The posterior footprints presented better results of species discrimination and set the levels of arboreal and cursorial activity of rodents. Allometric effects were observed in anterior (13%) and posterior (3%) footprint analysis. The means of locomotion explained 90.3% of footprint rodents shape variation (p = 0.02), indicating convergence on footprint morphological patterns of arboreal and cursorial rodents.","PeriodicalId":300681,"journal":{"name":"Revista Brasileira De Zoologia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129970620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
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