scholarly journals Invasive alien plants in Sergipe, north-eastern Brazil

2021 ◽  
Vol 16 (1) ◽  
pp. 89-104
Author(s):  
Juliano Ricardo Fabricante ◽  
Kelianne Carolina Targino de Araújo ◽  
Thieres Santos Almeida ◽  
João Paulo Bispo Santos ◽  
Daniel Oliveira Reis
Keyword(s):  
Atlantic Forest ◽  
Alien Plants ◽  
Northeast Brazil ◽  
Invasive Alien Plants ◽  
Invasive Potential ◽  
Native Flora ◽  
Eastern Brazil ◽  
North Eastern ◽  
The Subject ◽  
Global Biodiversity

Biological invasions are considered one of the greatest threats to global biodiversity. In addition, they cause substantial economic impacts. However, studies about the subject in Brazil are still scarce. The aim of the present study was to prepare an inventory of non-native flora with invasive potential from Sergipe, Brazil. The inventory was carried out along the entire length of the sites. The species with potential invaders were grouped according to the biome/ecosystem and classified according to their habit and origin. Eighty-five species with invasive potential were sampled, 43 in the Caatinga, 75 in the Atlantic Forest, 36 in Sandbank and 22 in Mangrove. From these species, 17 were inventoried in all the biomes/ecosystems and 36 were observed in only one of them, six in the Caatinga, 27 in the Atlantic Forest and three in Sandbank. The number of potentially-invasive species sampled in Sergipe is alarming. The present study showed nearly twice the species listed by other authors for the entire northeast Brazil. This high number of taxa may be a consequence of facilitating the transfer of these species and the conservation conditions of the ecosystems studied in Sergipe. Another very worrying factor is that many of the species sampled are extremely aggressive and cause a series of impacts.

Nutritional vulnerability of early zoeal stages of the invasive shrimp Lysmata vittata (Decapoda: Caridea) in the Atlantic Ocean

2020 ◽  
Vol 100 (4) ◽  
pp. 577-584
Author(s):  
Samara de P. Barros-Alves ◽  
Andréa Santos e Almeida ◽  
Ariádine Cristine de Almeida ◽  
Rogério Caetano da Costa ◽  
Douglas Fernandes Rodrigues Alves
Keyword(s):  
Atlantic Ocean ◽  
Vulnerability Index ◽  
Invasive Potential ◽  
Larval Stages ◽  
Eastern Brazil ◽  
North Eastern ◽  
Point Of No Return ◽  
Continuous Feeding ◽  
The Mean ◽  
Estuarine Region

AbstractLysmata vittata is considered an invasive shrimp in the Atlantic Ocean and some characteristics might have contributed to its invasive success, such as its larval nutritional vulnerability during the early stages of development. The objective of this study was to evaluate the early larval stages of the shrimp L. vittata. Ovigerous specimens were captured in an estuarine region of north-eastern Brazil. Zoeae were assigned to two experiments: (1) the point of no return (PNR), consisting of treatments with an increasing number of days of starvation and subsequent days of feeding; and (2) the point of reserve saturation (PRS), consisting of treatments with an increasing number of days of feeding and subsequent days of starvation. Two control groups were considered: continuous starvation (CS) and continuous feeding (CF). Nutritional vulnerability was estimated by the time when 50% of the initially starved larvae (PNR50) lost the ability to moult to the next stage, when 50% of the initially fed larvae (PRS50) were capable of moulting to the next stage. In the CF, the mean development time (±SD) of the larvae that reached stage III was 4.36 ± 0.74 days with a mortality of 70%, and the mean carapace length (±SD) was 0.61 ± 0.04 mm CL. The PNR50 and PRS50 were 2.42 ± 0.14 and 1.32 ± 0.83 days, respectively. The nutritional vulnerability index (PRS50/PNR50 = 0.54) indicates that L. vittata presents intermediate dependence on exogenous food during the early larval stages, which might help our understanding of the invasive potential of this species in the Atlantic Ocean.

scholarly journals Bat assemblage of Guaribas Biological Reserve, an Atlantic forest conservation unit in North-eastern Brazil: Results of a two-stage long-term survey

2016 ◽  
Vol 38 (3) ◽  
pp. 365 ◽  
Author(s):  
Caio Graco Zeppelini ◽  
Isabela Jerônimo ◽  
Karlla Morganna da Costa Rego ◽  
Maria Paula de Aguiar Fracasso ◽  
Luiz Carlos Serramo Lopez
Keyword(s):  
Atlantic Forest ◽  
Forest Conservation ◽  
Conservation Unit ◽  
Two Stage ◽  
Eastern Brazil ◽  
North Eastern ◽  
Biological Reserve ◽  
Long Term Survey

Seasonal dynamics and rickettsial infection in free-living Amblyomma dubitatum in the Atlantic forest biome in north-eastern Brazil

Acta Tropica ◽  
2021 ◽  
Vol 217 ◽  
pp. 105854
Author(s):  
Filipe Dantas-Torres ◽  
Marcela Ferreira Melo ◽  
Kamila Gaudêncio da Silva Sales ◽  
Lucas Christian de Sousa-Paula ◽  
Fernando José da Silva ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Seasonal Dynamics ◽  
Rickettsial Infection ◽  
Free Living ◽  
Eastern Brazil ◽  
North Eastern ◽  
Forest Biome

Tick infestation on birds in an urban Atlantic Forest fragment in north-eastern Brazil

2021 ◽  
Author(s):  
Filipe Dantas-Torres ◽  
Anderson Rafael dos Santos Braz ◽  
Kamila Gaudêncio da Silva Sales ◽  
Lucas Christian de Sousa-Paula ◽  
George Tadeu Nunes Diniz ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Tick Infestation ◽  
Forest Fragment ◽  
Eastern Brazil ◽  
North Eastern

scholarly journals Nematode infection in the lizard Bogertia lutzae (Loveridge, 1941) from the Atlantic forest in north-eastern Brazil

2009 ◽  
Vol 84 (2) ◽  
pp. 199-201 ◽  
Author(s):  
R.W. Ávila ◽  
L.A. Anjos ◽  
U. Gonçalves ◽  
E.M.X. Freire ◽  
W.O. Almeida ◽  
...  
Keyword(s):  
Body Size ◽  
Atlantic Forest ◽  
Host Population ◽  
Nematode Infection ◽  
Intensity Of Infection ◽  
New Host ◽  
Mean Intensity ◽  
Eastern Brazil ◽  
North Eastern ◽  
First Time

AbstractEndoparasites associated with the small bromelicolous lizard Bogertia lutzae, a poorly studied phyllodactylid inhabitant of north-eastern Brazil, were studied. Fifty-seven specimens collected from the Atlantic Forest of Alagoas state were dissected. Only one species of parasite, the nematode Spauligodon oxkutzcabiensis, was found, with a prevalence of 22.8%. The intensity of infection was 2.62 ± 1.19, and neither the prevalence nor mean intensity differed between the sexes. There was no correlation between lizard body size and intensity of infection. An aggregated pattern of distribution (D = 0.813) of S. oxkutzcabiensis was found in this lizard host population. Bogertia lutzae represents a new host recorded for S. oxkutzcabiensis, a parasite reported for the first time for Brazil.

scholarly journals A sticky and heavily armed new species of Solanum (Solanum subg. Leptostemonum, Solanaceae) from eastern Brazil

PhytoKeys ◽  
2018 ◽  
Vol 111 ◽  
pp. 103-118 ◽  
Author(s):  
Yuri Fernandes Gouvêa ◽  
Leandro Lacerda Giacomin ◽  
João Renato Stehmann
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Minas Gerais ◽  
Brazilian Atlantic Forest ◽  
Eastern Brazil ◽  
North Eastern ◽  
Southern Bahia ◽  
A New Species

We describe a new species of spinySolanum(Solanumsubg.Leptostemonum), endemic to the Brazilian Atlantic Forest and associated with granitic outcrops (inselbergs or sugar loaf mountains).SolanumkollastrumGouvêa & Giacomin,sp. nov.is morphologically similar to the poorly knownS.sublentumHiern, but is a heavily armed, much more robust plant with stellate-glandular indumentum. Together withS.sublentum, it is morphologically related to some species ofSolanumsuch asS.hexandrumVell.,S.robustumH.Wendl., andS.stagnaleMoric. that share strongly accrescent calyces, large leaves with the bases decurrent on to the petiole, pendent simple inflorescences and large, robust flowers. The new species is restricted to a few known populations in southern Bahia and north-eastern Minas Gerais states and conservation efforts are needed.

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