scholarly journals Behavioral and physiological responses to fruit availability of spider monkeys ranging in a small forest fragment

2014 ◽  
Vol 76 (11) ◽  
pp. 1049-1061 ◽  
Author(s):  
Rebecca Rimbach ◽  
Andrés Link ◽  
Andrés Montes‐Rojas ◽  
Anthony Di Fiore ◽  
Michael Heistermann ◽  
...  
2008 ◽  
Vol 24 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Sarita B. Fáveri ◽  
Heraldo L. Vasconcelos ◽  
Rodolfo Dirzo

Abstract:We evaluated the effects of forest fragmentation on herbivory on central Amazonian trees. Levels of herbivory were measured on leaves from a total of 1200 saplings from 337 species. There was a positive and significant effect of forest fragment area on herbivore damage, with plants from continuous forest having twice as much damage as plants in the smallest fragments studied (1 ha). Measurements of herbivory rates on two species, however, indicate that the effect can be species-specific. Forest area had a positive and linear effect on rates of herbivory in Henriettella caudata (Melastomataceae), whereas in Protium hebetatum (Burseraceae), rates of herbivory were greater in the 10-ha fragments than in the 1-ha fragments and in continuous forest. There is no evidence that the nutritional and defensive characteristics of the leaves of the species we studied changed as a result of forest fragmentation, at least not in a manner consistent with the observed herbivory patterns. Herbivore predation levels, measured with artificial caterpillars, also showed no significant relationship with forest area. Therefore, neither of these top-down and bottom-up forces could explain the observed patterns of herbivory. It is suggested, instead, that forest fragmentation may affect the dispersal of insect herbivores, and reduce their abundances on small forest isolates. Altered patterns of herbivory on tree saplings may have important consequences for forest structure and dynamics.


2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Thamires Almeida Pereira ◽  
Paula de Oliveira Passos ◽  
Lidiane Alves dos Santos ◽  
Robert Lücking ◽  
Marcela Eugenia Da Silva Cáceres

Abstract In the frame of an ongoing lichen inventory of Atlantic Rainforest remnants in Northeast Brazil, five new species of Graphidaceae were discovered in a small forest fragment, Mata do Cipó, in Sergipe state, the smallest state of Brazil and among those with the highest deforestation rate in the country. An additional new species had already been collected in Panama before and was now also found in the Mata do Cipó and is described here as well. In total, 40 species of Graphidaceae are reported for this remnant, including a large number of taxa indicative of well-preserved rainforest. The new species are: Fissurina atlantica T.A. Pereira, M. Cáceres & Lücking, sp. nov., Graphis subaltamirensis Passos, M. Cáceres & Lücking, sp. nov., Ocellularia cipoensis L.A. Santos, M. Cáceres & Lücking, sp. nov., O. sosma T.A. Pereira, M. Cáceres & Lücking, sp. nov., O. submordenii Lücking, sp. nov. (also known from Panama), and Pseudochapsa aptrootiana M. Cáceres, T.A. Pereira & Lücking, sp. nov. The findings are discussed in the context of the strong fragmentation of the Atlantic Rainforest, with individual remnants apparently serving as refugia for residual populations of rare species of lichen fungi that were more widely distributed in the past, but currently seem to occur only in isolated fragments.


Phytotaxa ◽  
2018 ◽  
Vol 351 (1) ◽  
pp. 81
Author(s):  
MEL C. CAMELO ◽  
MARCUS A. N. COELHO ◽  
LÍVIA G. TEMPONI

Anthurium narae is described from the state of Minas Gerais, in southeastern Brazil. It occurs in a small forest fragment of semideciduous seasonal montane forest, a component of Brazilian Atlantic Forest. Descriptions, illustrations, photographs and comparison with other similar species of Anthurium sect. Urospadix are provided together with comments about geographical distribution, ecology, phenology, and conservation status.


Phytotaxa ◽  
2018 ◽  
Vol 351 (1) ◽  
pp. 81
Author(s):  
MEL C. CAMELO ◽  
MARCUS A. N. COELHO ◽  
LÍVIA G. TEMPONI

Anthurium narae is described from the state of Minas Gerais, in southeastern Brazil. It occurs in a small forest fragment of semideciduous seasonal montane forest, a component of Brazilian Atlantic Forest. Descriptions, illustrations, photographs and comparison with other similar species of Anthurium sect. Urospadix are provided together with comments about geographical distribution, ecology, phenology, and conservation status.


Primates ◽  
2020 ◽  
Author(s):  
Kayla S. Hartwell ◽  
Hugh Notman ◽  
Urs Kalbitzer ◽  
Colin A. Chapman ◽  
Mary M. S. M. Pavelka

2020 ◽  
Vol 82 (5) ◽  
Author(s):  
Eva Gazagne ◽  
Juan Manuel José‐Domínguez ◽  
Marie‐Claude Huynen ◽  
Alain Hambuckers ◽  
Pascal Poncin ◽  
...  

Phytotaxa ◽  
2020 ◽  
Vol 439 (2) ◽  
pp. 119-126
Author(s):  
BRAYAN PAIVA CAVALCANTE ◽  
EVERTON HILO DE SOUZA ◽  
LEONARDO M. VERSIEUX ◽  
ADRIANA PINHEIRO MARTINELLI

We describe a new species of Hohenbergia (Bromeliaceae) from Brazil, H. ituberaensis, a rare species, so far only known from Ituberá municipality, Bahia State, in an area of the Atlantic Forest. The species is similar to H. stellata, presenting a pinkish inflorescence, congested and non-divided branches, pinkish and large floral bracts hiding the sepals, spatulate petals with a slightly reflexed apex. However, it differs by the white petals, as a diagnostic characteristic. The type specimen was collected in a small forest fragment and here this species is categorized as Vulnerable. Additionally, we compared this new species to Hohenbergia belemii and H. capitata, which are also similar to H. stellata, due to the red/pinkish characteristics of the branches, with large flowers and well-developed floral bracts. An illustration, an occurrence map, taxonomic comments and a table comparing the main characters of these four species are provided.


Zootaxa ◽  
2010 ◽  
Vol 2408 (1) ◽  
pp. 31 ◽  
Author(s):  
S. D. BIJU ◽  
STEPHEN MAHONY ◽  
RACHUNLIU G. KAMEI

Two distinctive new species of torrent frogs, Amolops nidorbellus sp. nov. and Amolops kohimaensis sp. nov. are described from the state of Nagaland in northeast India. Both species are compared with all known congeners. Amolops nidorbellus sp. nov. morphologically belongs to a group of torrent frogs including A. caelumnoctis, A. splendissimus, A. kaulbacki and A. viridimaculatus and is unarguably the most spectacularly coloured species in the genus. Amolops kohimaensis sp. nov. appears most similar to A. granulosus, each with extensive dorsal spinulation. The two new species are sympatrically occurring and currently known only from the type locality, about 5 kilometers west of Kohima town, Nagaland. The small forest fragment is in the process of extensive destruction from local quarrying activities, thus these species may already be threatened. Additional taxonomic comments are provided for A. caelumnoctis, A. splendissimus, A. daorum and A. mengyangensis.


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