Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.10
Cecília Cronemberger, Cristiane Dambrós, Julian Nicholas Garcia Willmer, Mariana Silva Guimarães Ferreira, Átilla Colombo Ferreguetti, H. G. Bergallo
BRAZIL: The use of presence-absence data in wild animal monitoring studies has increased rapidly in recent decades. This study uses presence-absence data obtained by camera traps over eight years in the locality of Garrafão, in Rio de Janeiro state, to analyze the effects of sampling effort and successive changes in camera trap model and record type (photo or video) on mammal species’ detection probabilities, as well as the effect of the presence of domestic animals and people on the species’ occupancy, using a static multi-species occupancy model (MSOM). We recorded five medium-sized terrestrial mammal species: Cuniculus paca , Dasyprocta leporina , Didelphis aurita , Nasua nasua and Leopardus wiedii , in addition to a small species, Guerlinguetus brasiliensis. Sampling effort and progressive replacement in camera trap models and type of record positively influenced the detection probabilities of the species, with a greater effect on smaller sized species. Only one species, Didelphis aurita , increased its occupancy over time, while the other species showed uninformative estimates. Mean occupancy of the species was not influenced by the presence of domestic cats and people, but was positively correlated with the presence of domestic dogs. The results reinforce the importance of incorporating the effect of camera trap model and its settings on detection probabilities in occupancy models, which may result in greater precision in occupancy estimates in studies where there are equipment changes, such as long-term monitoring programs.
{"title":"FATORES QUE INFLUENCIAM A DETECTABILIDADE DE MAMÍFEROS TERRESTRES EM UMA ÁREA DE MATA ATLÂNTICA NO SUDESTE DO BRASIL","authors":"Cecília Cronemberger, Cristiane Dambrós, Julian Nicholas Garcia Willmer, Mariana Silva Guimarães Ferreira, Átilla Colombo Ferreguetti, H. G. Bergallo","doi":"10.4257/oeco.2023.2702.10","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.10","url":null,"abstract":"BRAZIL: The use of presence-absence data in wild animal monitoring studies has increased rapidly in recent decades. This study uses presence-absence data obtained by camera traps over eight years in the locality of Garrafão, in Rio de Janeiro state, to analyze the effects of sampling effort and successive changes in camera trap model and record type (photo or video) on mammal species’ detection probabilities, as well as the effect of the presence of domestic animals and people on the species’ occupancy, using a static multi-species occupancy model (MSOM). We recorded five medium-sized terrestrial mammal species: Cuniculus paca , Dasyprocta leporina , Didelphis aurita , Nasua nasua and Leopardus wiedii , in addition to a small species, Guerlinguetus brasiliensis. Sampling effort and progressive replacement in camera trap models and type of record positively influenced the detection probabilities of the species, with a greater effect on smaller sized species. Only one species, Didelphis aurita , increased its occupancy over time, while the other species showed uninformative estimates. Mean occupancy of the species was not influenced by the presence of domestic cats and people, but was positively correlated with the presence of domestic dogs. The results reinforce the importance of incorporating the effect of camera trap model and its settings on detection probabilities in occupancy models, which may result in greater precision in occupancy estimates in studies where there are equipment changes, such as long-term monitoring programs.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45693673","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.04
Jônatas Freitas Simas, M. S. Ferreira, R. Cerqueira
{"title":"POPULATION DYNAMICS OF THE CLIMBING MICE Rhipidomys itoan (COSTA, 2011) IN THE BRAZILIAN ATLANTIC FOREST","authors":"Jônatas Freitas Simas, M. S. Ferreira, R. Cerqueira","doi":"10.4257/oeco.2023.2702.04","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.04","url":null,"abstract":"","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43618805","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.06
Luís Renato Bernardo, Priscilla Lóra Zangrandi, Ana Cláudia Delciellos, M. V. Vieira
in the marsupium and lactating females, without considering the phases of the estrous cycle, fertilization and gestation for the duration of the season. Considering that lactation inhibits the estrous cycle of females, studies that relate the reproductive season of marsupials to behavioral or space use patterns without considering whether females are receptive to mating may result in misinterpretations. The objectives of this study were (1) to determine the duration of the period in which female Philander quica (Didelphimorphia, Didelphidae) are receptive to mating; and (2) the duration of the breeding season, also considering the mating period. The capture data came from three sampling grids in a continuous forest area in Garrafão, Serra dos Órgãos National Park, and from 14 Atlantic Forest fragments, in the state of Rio de Janeiro, Brazil. For each female captured with offspring in the pouch, the date of fertilization was estimated by adding the female’s gestation time (15 days) to the age of the offspring, using a non-linear function. The mating period was defined using circular statistics. There were 38 (11 with pups) and 113 (34 with pups) captures of females in the continuous forest and in fragments, respectively. The mating period was seasonal in both areas, occurring from June to December in the continuous forest and from June to November in the fragments. The breeding season was practically continuous throughout the year (June to April), and in the fragments in March and April only lactating females were recorded. Therefore, considering the mating period as information, in addition to the presence of females with offspring or lactating females, can clarify or allow the reinterpretation of behavioral patterns related to the breeding season.
{"title":"MÉTODO ALTERNATIVO DE AVALIAÇÃO INDICA SAZONALIDADE NO PERÍODO DE ACASALAMENTO DE Philander quica (TEMMICK, 1824)","authors":"Luís Renato Bernardo, Priscilla Lóra Zangrandi, Ana Cláudia Delciellos, M. V. Vieira","doi":"10.4257/oeco.2023.2702.06","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.06","url":null,"abstract":"in the marsupium and lactating females, without considering the phases of the estrous cycle, fertilization and gestation for the duration of the season. Considering that lactation inhibits the estrous cycle of females, studies that relate the reproductive season of marsupials to behavioral or space use patterns without considering whether females are receptive to mating may result in misinterpretations. The objectives of this study were (1) to determine the duration of the period in which female Philander quica (Didelphimorphia, Didelphidae) are receptive to mating; and (2) the duration of the breeding season, also considering the mating period. The capture data came from three sampling grids in a continuous forest area in Garrafão, Serra dos Órgãos National Park, and from 14 Atlantic Forest fragments, in the state of Rio de Janeiro, Brazil. For each female captured with offspring in the pouch, the date of fertilization was estimated by adding the female’s gestation time (15 days) to the age of the offspring, using a non-linear function. The mating period was defined using circular statistics. There were 38 (11 with pups) and 113 (34 with pups) captures of females in the continuous forest and in fragments, respectively. The mating period was seasonal in both areas, occurring from June to December in the continuous forest and from June to November in the fragments. The breeding season was practically continuous throughout the year (June to April), and in the fragments in March and April only lactating females were recorded. Therefore, considering the mating period as information, in addition to the presence of females with offspring or lactating females, can clarify or allow the reinterpretation of behavioral patterns related to the breeding season.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46243156","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.07
P. Ferreira, D. Loretto, C. E. Grelle
{"title":"HABITAT SELECTION OF Marmosops incanus (LUND, 1841) (DIDELPHIMORPHIA, DIDELPHIDAE) IN THE SERRA DOS ÓRGÃOS NATIONAL PARK, ATLANTIC FOREST, SOUTHEAST BRAZIL","authors":"P. Ferreira, D. Loretto, C. E. Grelle","doi":"10.4257/oeco.2023.2702.07","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.07","url":null,"abstract":"","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46593364","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.09
D. Loretto, M. Vieira
{"title":"A LITERATURE REVIEW AND FIELD TEST ON THE ROLE OF BAIT TYPE ON CAPTURE SUCCESS OF ARBOREAL SMALL MAMMALS","authors":"D. Loretto, M. Vieira","doi":"10.4257/oeco.2023.2702.09","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.09","url":null,"abstract":"","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46984872","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.02
M. S. Ferreira, Ana Cláuda Delciellos, Camila S. Barros
: Long-term monitoring studies have spearheaded the development of population ecology as a discipline. Today, the vast amount of information obtained from these studies is concentrated at higher-latitude ecosystems. Here we present the advances achieved by the largest long-term monitoring study of small mammals carried out in a tropical forest in Brazil. Along 22 years, since 1997, the Garrafão project was developed in one of the largest Atlantic Forest remnants, in the southern limit of the Serra dos Órgãos National Park, state of Rio de Janeiro. Most studies developed with this valuable dataset have focused on the most abundant species of marsupials and rodents. In general, this long-term study brought important advances in the understanding of the ecology of mammals in tropical forests, such as: (1) the predominance of population self-regulation in one of the most species-rich environments; (2) the importance of survival for population growth and regulation; (3) seasonal and continuous reproduction in marsupial and rodents, respectively; (4) the positive relationship between body size and space use in marsupials weighing up to 100 g (opposite relationship in species weighing less than 100 g); (5) differences in space use between species, sexes and age classes, and positive (and negative) effects of density; and (6) differences in habitat selection in species living in different forest strata. Several other questions remain to be answered with this dataset and this review aims to stimulate new questions and new long-term monitoring studies in different ecosystems in the tropical region.
{"title":"ECOLOGY OF TROPICAL FOREST SMALL MAMMAL POPULATIONS: PATTERNS AND PROCESS REVEALED BY THE LONGEST LONG-TERM MONITORING STUDY IN BRAZIL","authors":"M. S. Ferreira, Ana Cláuda Delciellos, Camila S. Barros","doi":"10.4257/oeco.2023.2702.02","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.02","url":null,"abstract":": Long-term monitoring studies have spearheaded the development of population ecology as a discipline. Today, the vast amount of information obtained from these studies is concentrated at higher-latitude ecosystems. Here we present the advances achieved by the largest long-term monitoring study of small mammals carried out in a tropical forest in Brazil. Along 22 years, since 1997, the Garrafão project was developed in one of the largest Atlantic Forest remnants, in the southern limit of the Serra dos Órgãos National Park, state of Rio de Janeiro. Most studies developed with this valuable dataset have focused on the most abundant species of marsupials and rodents. In general, this long-term study brought important advances in the understanding of the ecology of mammals in tropical forests, such as: (1) the predominance of population self-regulation in one of the most species-rich environments; (2) the importance of survival for population growth and regulation; (3) seasonal and continuous reproduction in marsupial and rodents, respectively; (4) the positive relationship between body size and space use in marsupials weighing up to 100 g (opposite relationship in species weighing less than 100 g); (5) differences in space use between species, sexes and age classes, and positive (and negative) effects of density; and (6) differences in habitat selection in species living in different forest strata. Several other questions remain to be answered with this dataset and this review aims to stimulate new questions and new long-term monitoring studies in different ecosystems in the tropical region.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42687867","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.11
L. Tripodi, M. Vieira, M. S. Ferreira
{"title":"DOES MOONLIGHT SUPPRESS OR STIMULATE ACTIVITY OF A TROPICAL FOREST SMALL MAMMAL","authors":"L. Tripodi, M. Vieira, M. S. Ferreira","doi":"10.4257/oeco.2023.2702.11","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.11","url":null,"abstract":"","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48109468","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.05
P. L. Zangrandi, M. Kajin, M. Vieira
{"title":"A TEST OF SEMELPARITY IN THE LONG-TERM POPULATION MONITORING OF THE MARSUPIAL Marmosops incanus (DIDELPHIMORPHIA, DIDELPHIDAE)","authors":"P. L. Zangrandi, M. Kajin, M. Vieira","doi":"10.4257/oeco.2023.2702.05","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.05","url":null,"abstract":"","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46888183","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.08
Priscilla Cobra, Diogo Loretto, M. S. L. Figueiredo, Bernardo Papi, Matheus Fernandes Dalloz, N. Rezende, M. Vieira
Shelters are important resources for the biology of organisms, but the mechanisms by which individuals choose a particular shelter are poorly understood. Between 2004 and 2009, using the Artificial Nests (AN) method, we evaluated if there is shelter selection by Caluromys philander and which microhabitat variables influence this choice. The hypotheses tested were: (1) there would be a positive relationship between the most used AN and components of vegetation structure that favor the arboreal habit of the species and its access to AN, and (2) the most used AN would be located near habitat features used as food sources proxies, to reduce energy expenditure during foraging. We measured the Descriptive Microhabitat of the Trees containing AN station and the Descriptive Microhabitat around each AN. There were 63 AN station measured, containing three AN at three heights each (0 m, 2.5 m and 5 m). We evaluated 21 variables (11 of each microhabitat scale) and related it to the frequency of C. philander in the AN. Models were generated from Poisson regression, which were selected by Akaike’s Information Criteria. There were 118 records of 21 individuals of C. philander , 80% of them in the highest stratum (5 m of height). The trees selected by C. philander were tall, with thick trunks, and low bromeliads and lianas abundance, surrounded by dead trees, open canopy, and flat relief. Both hypotheses were denied, as C. philander selected shelters that may prioritize their protection, as they were positioned in inaccessible places except by using tree trunk itself. This positioning and the negative relationship with food sources proxy variables show that C. philander behave differently when selecting resting and sheltering sites from food source sites, and it is possible to expect this to be a widespread behavior in other related species of small Neotropical arboreal marsupials.
{"title":"SELEÇÃO DE LOCAIS DE ABRIGO POR Caluromys philander (DIDELPHIMORPHIA, DIDELPHIDAE), UTILIZANDO NINHOS ARTIFICIAIS, EM ÁREA DE MATA ATLÂNTICA, GUAPIMIRIM, RJ, BRASIL","authors":"Priscilla Cobra, Diogo Loretto, M. S. L. Figueiredo, Bernardo Papi, Matheus Fernandes Dalloz, N. Rezende, M. Vieira","doi":"10.4257/oeco.2023.2702.08","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.08","url":null,"abstract":"Shelters are important resources for the biology of organisms, but the mechanisms by which individuals choose a particular shelter are poorly understood. Between 2004 and 2009, using the Artificial Nests (AN) method, we evaluated if there is shelter selection by Caluromys philander and which microhabitat variables influence this choice. The hypotheses tested were: (1) there would be a positive relationship between the most used AN and components of vegetation structure that favor the arboreal habit of the species and its access to AN, and (2) the most used AN would be located near habitat features used as food sources proxies, to reduce energy expenditure during foraging. We measured the Descriptive Microhabitat of the Trees containing AN station and the Descriptive Microhabitat around each AN. There were 63 AN station measured, containing three AN at three heights each (0 m, 2.5 m and 5 m). We evaluated 21 variables (11 of each microhabitat scale) and related it to the frequency of C. philander in the AN. Models were generated from Poisson regression, which were selected by Akaike’s Information Criteria. There were 118 records of 21 individuals of C. philander , 80% of them in the highest stratum (5 m of height). The trees selected by C. philander were tall, with thick trunks, and low bromeliads and lianas abundance, surrounded by dead trees, open canopy, and flat relief. Both hypotheses were denied, as C. philander selected shelters that may prioritize their protection, as they were positioned in inaccessible places except by using tree trunk itself. This positioning and the negative relationship with food sources proxy variables show that C. philander behave differently when selecting resting and sheltering sites from food source sites, and it is possible to expect this to be a widespread behavior in other related species of small Neotropical arboreal marsupials.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46556567","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}
Pub Date : 2023-06-15DOI: 10.4257/oeco.2023.2702.01
R. Gentile, D. Loretto, M. Kajin, S. R. Freitas, R. Finotti, M. Vieira, R. Cerqueira
{"title":"GARRAFÃO PROJECT: ORIGIN, HISTORY AND MAIN ASPECTS OF THE DEVELOPMENT OF THE LONGEST LONG-TERM STUDY OF ECOLOGY OF SMALL MAMMALS IN BRAZIL","authors":"R. Gentile, D. Loretto, M. Kajin, S. R. Freitas, R. Finotti, M. Vieira, R. Cerqueira","doi":"10.4257/oeco.2023.2702.01","DOIUrl":"https://doi.org/10.4257/oeco.2023.2702.01","url":null,"abstract":"","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45189371","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}
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