Diversity and richness of small mammals at a well-conserved site of The Yungas in Jujuy Province, Argentina

Mammalia ◽  
2016 ◽  
Vol 80 (3) ◽  
Author(s):  
Santiago Gamboa Alurralde ◽  
M. Fernanda López Berrizbeitia ◽  
Rubén M. Barquez ◽  
M. Mónica Díaz

AbstractWe present the results obtained from 12 small-mammal surveys conducted between 1996 and 2013 in “Finca Las Capillas”, province of Jujuy, Argentina. This region has been formally recognized as an “Area of Importance for the Conservation of Bats” (AICOM) based on the diversity of species detected in our previous studies. This site in the Yungas forests of northwestern Argentina still maintains an excellent conservation status due to restrictions to human activities involving deforestation and limitations to cattle-raising imposed 50 years ago. A total of 39 species belonging to three orders, namely, Didelphimorphia, Chiroptera and Rodentia, were recorded. The species accumulation curve revealed that our records represent 83–95% of the community, and with high diversity indexes. Several of the genera and species that we recorded from our collection trips have been included in the fauna of Argentina. Our previous studies and the present findings provide new records for the province or significant extensions to previously known distributions of several taxa of small mammals. These results show that the site represents an icon for conservation in such a fragmented and exploited area as the Yungas in Argentina today.

Check List ◽  
2013 ◽  
Vol 9 (6) ◽  
pp. 1410 ◽  
Author(s):  
Alexander Claro-García ◽  
Lisandro Juno Soares Vieira ◽  
Lucas Ribeiro Jarduli ◽  
Vitor Pimenta Abrahão ◽  
Oscar Akio Shibatta

This study presents a list of species from igarapés tributaries of the rio Acre, Acre State, Brazil. Fish assemblages were sampled in October 2009, August and October 2010, using standard ichthyological gear, along fifteen sampling sites. A total of 11,395 specimens, distributed in 94 species, 24 families and six orders were collected. The most species-rich orders were Characiformes with 45 species (48.4%) and Siluriformes with 33 species (34.7%); from which Serrapinnus gr. microdon (22.4%), Otocinclus vittatus (20.4%), Phenacogaster pectinatus (10.9%), Brachychalcinus copei (5.8%) and Knodus sp. (5.3%) represented 64.8 % of the specimens captured. The species accumulation curve does not present a stabilization tendency, indicating that, additional sampling can increase the number of species. This study has a high importance for the knowledge of the rio Acre fish fauna composition and adds 52 new records of species to the fish fauna of the rio Purus.


Check List ◽  
2019 ◽  
Vol 15 (6) ◽  
pp. 1137-1144
Author(s):  
Adriana Glücksberg ◽  
Eric Javier Martínez ◽  
Ana Isabel Honfi ◽  
Carla Maldonado ◽  
Diego Hernán Hojsgaard

Paspalum procurrens Quarin and P. volcanense Zuloaga, Morrone & Denham are two rare species of South American grasses inhabiting geographically restricted areas which are exposed to ecological degradation due to landscape transformation and biodiversity losses. We present new records for these species, from the provinces of Jujuy, Salta, Tucumán and Catamarca (Argentina) and departments of Tarija, Chuquisaca, and Santa Cruz (Bolivia). New geographic distribution maps and the biological relevance of these findings are discussed pinpointing the need for imperative and assiduous botanical explorations in biodiversity hotspots sensible to the impact of human activities. Ploidy levels in these two species are studied.


2018 ◽  
Vol 11 (3) ◽  
pp. 209-215
Author(s):  
Joseleide Teixeira Câmara ◽  
Juliana Raquel Bomfim da Rocha ◽  
Surama Pereira

Resumo. Os esfingídeos são considerados um grupo bioindicador, com espécies indicadoras de continuidade da vegetação original e outras indicadoras de perturbação. O objetivo do presente estudo é realizar análise faunística das comunidades de Sphingidae em dois fragmentos de mata secundária na Região Leste maranhense. Foram realizadas coletas mensais em fragmentos de mata secundária, nos municípios de Caxias e Codó, entre fevereiro/2015 e outubro/2016. Os espécimes foram obtidos por meio de armadilha luminosa. Foram calculadas a frequência relativa, abundância, constância, dominância, diversidade, estimativas de riqueza e obteve-se a curva de acúmulo de espécies. Foram obtidos 254 espécimes de 33 espécies, distribuídas em 16 gêneros. No fragmento localizado em Caxias (Povoado Chapada-PC), três espécies são predominantes e sete espécies são raras; em Codó (Fazenda Santa Rita-FSR), duas espécies são predominantes e cinco são raras. O fragmento FSR expressa maior diversidade que o PC, no entanto, os estimadores de riqueza apontam para menor possibilidade de acréscimo no número de espécies da comunidade da FSR. As comunidades estudadas possuem maior similaridade com outras comunidades mais distantes que entre si. Os dados comprovam a heterogeneidade da composição faunística existente no Maranhão denota alta diversidade, mas também alta fragilidade.Sphingidae (Lepidoptera) Occurrents in The East of Maranhão, BrazilAbstract. The hawkmoths is considered a bioindicator group with indicator species of continuity of the original vegetation and other indicators of disturbance. The objective of this study is analysis of faunal Sphingidae communities in two secondary forest fragments in the Eastern Region Maranhão. Monthly collections were carried out in fragments of secondary forest, in the municipalities of Caxias and Codó, between February/2015 and October/2016. The specimens were obtained by light trap. Relative frequency, abundance, constancy, dominance, diversity, richness estimates were calculated and the species accumulation curve was obtained. 254 specimens were obtained from 33 species, distributed in 16 genera. In the fragment located in Caxias (Pavoado Chapada-PC), three species are predominant and seven species are rare; in Codó (Fazenda Santa Rita-FSR), two species are predominant and five are rare. The FSR fragment expressed greater diversity than the PC, however, the richness estimators indicate less likely to increase in the number of species of the FSR community. The communities studied have greater similarity with other communities more distant than each other. The data prove the heterogeneity of the existing fauna composition in Maranhão, denoting high diversity but high fragility.


Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2105 ◽  
Author(s):  
Santiago Gamboa Alurralde ◽  
Rubén M. Barquez ◽  
M. Mónica Díaz

The forests of northwestern Argentina represent one of the most diverse areas of the country, but also one of the most affected by human activities. The southern border of this region is a transition area with the Dry Chaco Ecoregion and represents a poorly studied zone. The aim of this study was to assess the diversity of bats at the village of Escaba, southern Tucuman. Seven field surveys were conducted at five different sites. A total of 120 specimens in three families and 14 species were recorded, 12 of them representing new records for the study area, increasing the species richness of Escaba from four to 16 species. The area will be recommended as an AICOM, a status given by the RELCOM, thereby promoting actions to preserve the species of bat in the area.


Koedoe ◽  
2002 ◽  
Vol 45 (2) ◽  
Author(s):  
S.H. Foord ◽  
Anna S. Dippenaar-Schoeman ◽  
M. Van der Merwe

By virtue of its geological history and geographical location the Soutpansberg constitutes a refuge for a high diversity of organisms. The Western Soutpansberg forms part of the Savanna Biome and is presently the area with the highest concentration of Natural Heritage Sites in South Africa. A unique private initiative is under way to improve its national and international conservation status in a bid to conserve the mountain. A checklist of the spider species of the Western Soutpansberg collected over a five-year period is presented. Forty-six families, represented by 109 genera and 127 species have been collected. Of the species collected, 81 (64 %) were wandering spiders and 46 (36 %) web builders. The Thomisidae have the highest number of species (15) followed by the Araneidae and the Salticidae with 10 species each. Ninety-six genera are represented by a single species. Ninety six percent of the species collected are new records for the area. This survey is the first for the area and forms part of the South African National Survey of Arachnida (SANSA).


2019 ◽  
Vol 41 (4) ◽  
Author(s):  
Vu Dinh Thong

Lava caves are unique and fragile ecosystems which are suitable for a wide variety of plant and animal species. However, the biodiversity of lava caves is still poorly studied. To increase knowledge of these special ecosystems, several rapid surveys on bats were carried out in Dak Nong Province in sounthern Vietnam between 2014 and 2019. Bats were captured in the field using mist nets and harp traps. Echolocation calls were recorded in different situations using the PCTape system. The results include records of Griffin’s leaf-nosed bat (Hipposideros griffini) which is regarded as a species endemic to Vietnam only. Prior to the present study, it was only recorded from karst and moutain habitats in three different regions of Vietnam: Cat Ba National Park in the northeast, Chu Mom Ray in the central highlands, and Cat Tien National Park in the southeast. Records of Hipposideros griffini from Dak Nong Province extend its distributional range and highlight the importance of lava cave systems for biodiversity research and conservation in Vietnam. Griffin’s leaf-nosed bat and other animal species inhabiting the lava caves have been critically threatened by hunting and other human activities. Morphological measurements  and echolocation calls of Hipposideros griffini together with the threats to its conservation status in Dak Nong Province are given in this paper. 


Author(s):  
Adam, L. I. ◽  

The study was carried out to assess a Checklist of avifauna and small mammal species along Bade catchment area of Yobe State, Nigeria. Preliminary survey was conducted around the river, three (3) habitat types were identified; (river bank, farm lands and flood plain). The line transect was 8 km in length. Two (2) transects were established per habitat type, making a total of six (6) transects. The transects were 100 m apart to the left or right in order to avoid double counting of species. A distance of 200m was maintained between each habitat. The data obtained were analyses using descriptive statistics (Frequency tables and Charts were used to portrayed the findings. The result of the study; showed that a total of 50 bird species in 28 families were recorded. RB had the highest individuals of Fifty (50) species while FP has the lowest with ten (10) species. The Bird family Columbidae has the highest number with six (6) of species, while the lowest were Ardeidae, Sturnidae and Tytonidae with one species in each of the habitat types. However, checklist of small mammal species also indicated that a total of 6 species of small mammals belonging to 4 families were identified. The result of the study shows that the family Muridae has 3 species which was the highest number of per family identified in the study area, this is due to the fact that Muridae family are the most common small mammals in the study area. And both bird small species fell under least concern (LC) category except Pallid Harrier Circus macrourus which felled under near threatened (NT) species. However, awareness campaign should also be organize for the residents around the study area on the presence, distribution of bird and small mammal species and also disturbing effect of their activities on bird and small mammal around the segment area of river Yobe.


2019 ◽  
Vol 41 (4) ◽  
Author(s):  
Vu Dinh Thong

Lava caves are unique and fragile ecosystems which are suitable for a wide variety of plant and animal species. However, the biodiversity of lava caves is still poorly studied. To increase knowledge of these special ecosystems, several rapid surveys on bats were carried out in Dak Nong Province in sounthern Vietnam between 2014 and 2019. Bats were captured in the field using mist nets and harp traps. Echolocation calls were recorded in different situations using the PCTape system. The results include records of Griffin’s leaf-nosed bat (Hipposideros griffini) which is regarded as a species endemic to Vietnam only. Prior to the present study, it was only recorded from karst and moutain habitats in three different regions of Vietnam: Cat Ba National Park in the northeast, Chu Mom Ray in the central highlands, and Cat Tien National Park in the southeast. Records of Hipposideros griffini from Dak Nong Province extend its distributional range and highlight the importance of lava cave systems for biodiversity research and conservation in Vietnam. Griffin’s leaf-nosed bat and other animal species inhabiting the lava caves have been critically threatened by hunting and other human activities. Morphological measurements  and echolocation calls of Hipposideros griffini together with the threats to its conservation status in Dak Nong Province are given in this paper. 


Mammalia ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nayara Yoshie Sano ◽  
Heitor Miraglia Herrera ◽  
Grasiela Edith de Oliveira Porfirio ◽  
Filipe Martins Santos

AbstractTo date, there have been no studies that have evaluated small mammal utilization of the understory of forests. In this study, we described the use of vertical strata by small mammals in patches of unflooded forests, known as “cordilheiras”, in the Nhecolândia sub-region of the Pantanal, Brazil. We collected all species using the ground and understory, including the terrestrial didelphid Monodelphis domestica. We suppose that local habitat features (e.g., Acuri palms), rather than intrinsic species characteristics, may be more conducive to the use of understory vegetation by small mammals in the Nhecolândia region.


2020 ◽  
Vol 63 (5) ◽  
pp. 469-478
Author(s):  
Sally C. Fryar ◽  
Kevin D. Hyde ◽  
David E. A. Catcheside

AbstractA survey of driftwood and mangrove wood in South Australia revealed a high diversity of marine fungi. Across eight sites there were 43 species of marine fungi, of which 42 are new records for South Australia, 11 new records for Australia and 12 taxa currently of uncertain status likely to be new species. Sites had distinctive species compositions with the largest difference attributable to substrate type (beach driftwood vs. mangrove wood). However, even between mangrove sites, species assemblages were distinctly different with only the more common species occurring at all mangrove sites. More intensive surveys across a broader range of habitats and geographic locations should reveal significantly more species.


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