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Journal articles on the topic 'Semi-arid Neotropics'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Cardoso, Tiago A. L., and Alan Loures‐Ribeiro. "IMPORTANCE OF RESERVOIRS FOR WATERBIRDS IN SEMI‐ARID BRAZIL." Ornitología Neotropical 28 (June 21, 2017): 89–96. http://dx.doi.org/10.58843/ornneo.v28i0.164.

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ABSTRACT ∙ To investigate the value of water reservoirs for waterbirds in semi‐arid lands, we studied the waterbird community in semi‐arid of Paraíba, Brazil, and compared the results with other assemblages both in semi‐arid and humid regions of Neotropics. Birds were counted during 15 months in 12 reservoirs belonging to the Piranhas‐Açu River basin. We counted 4111 waterbirds and recorded 36 species. The most abundant species, such as Wattled Jacana (Jacana jacana) and Common Gallinule (Gallinula galeata), were strongly tied to aquatic vegetation. All species have wide distribution, far beyo

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SOUZA, LEILA A., ANDRÉ R. SENNA, and ADRIANO B. KURY. "A new species and first record of Gabunillo Schmalfuss & Ferrara, 1983 (Isopoda, Oniscidea, Armadillidae) from the Neotropics." Zootaxa 2677, no. 1 (2010): 1. http://dx.doi.org/10.11646/zootaxa.2677.1.1.

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A new species of terrestrial isopod, Gabunillo aridicola sp. nov., is described from Ceará and Rio Grande do Norte States, in Karstic formations in the Brazilian semi-arid (caatinga). This genus, hitherto monotypic, was known only from Gabon. This occurrence is remarkable because very few genera of Armadillidae are known from both Afrotropics and Neotropics, and because it offers evidence of a tropical Gondwana biogeographical component.

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Lucena, Danielly da Silva, Maria de Fátima de A. Lucena, and Marccus Alves. "Climbers from two rock outcrops in the semi-arid region of Brazil." Check List 13, no. (5) (2017): 417–27. https://doi.org/10.15560/13.5.417.

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This study aimed to recognize the floristic composition, the life form and the distribution of species of climbing plants occurring on 2 rock outcrops in the state of Pernambuco. Monthly botanical collections were made from February to September 2015 at Pedra do Cruzeiro (08°09′02.9″ S, 035°45′22.3″ W), municipality of Bezerros and Pico do Papagaio (07°49′25.7″ S, 038°03′14.8″ W), municipality of Triunfo. Fertile specimens were collected following the standard methodology in taxonomy. A total of 58 species were identified from the 2 areas, all widely distributed in Brazil and belonging to 20 b

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Lima, Mauricio, Francisco Bozinovic, and Fabian M. Jaksic. "Body mass dynamics and growth patterns of leaf-eared mice Phyllotis darwini in a semi-arid region of the Neotropics." Acta Theriologica 42 (March 10, 1997): 15–24. http://dx.doi.org/10.4098/at.arch.97-3.

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Wartchow, Felipe. "Amanita viridissima (Amanitaceae, Basidiomycota), a striking new species from highlands of the semiarid region of Bahia, Brazil." Plant Ecology and Evolution 149, no. (2) (2016): 241–48. https://doi.org/10.5091/plecevo.2016.1198.

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<b>Background</b> – <i>Amanita</i> is a well-established genus by morphological, biochemical, and molecular data, in which most of the taxa are ectomycorrhizal. The generic characteristics are bilateral lamellar trama (in the agaricoid forms), longitudinally acrophysalidic stipe tissue and schizohymenial development. In the Brazilian semi-arid region putative ectomycorrhizal agaric or chanterelle species are infrequently reported. <i>Amanita lippiae, Cantharellus guyanensis, C. rubescens</i> and <i>Lactarius rupestris</i> were recently described for that region. Here, an additional, morphologi

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Buainain, Nelson, Sandro P. de Faria, Liliane Seixas, Gregory Thom, and Claydson P. de Assis. "First record of the Hauxwell's Thrush, Turdus hauxwelli Lawrence, 1869 (Aves: Turdidae) from Mato Grosso do Sul, Brazil, and geographic range extension." Check List 13, no. (4) (2017): 163–67. https://doi.org/10.15560/13.4.163.

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We report the first record of the Hauxwell’s Thrush, <em>Turdus hauxwelli</em> Lawrence, 1869 (Aves: Turdidae) in the state of Mato Grosso do Sul, Brazil. During an ornithological inventory conducted in Serra de Maracajú, municipality of Corguinho, we mist-netted and collected an individual of the species. The specimen was prepared as study skin and is held in the ornithological collection of the Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro. This record is located 472 km south of the closest visual/song record and 616 km southeast of the closest museum specimen, being

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DeMar, David G., Jack L. Conrad, Jason J. Head, David J. Varricchio, and Gregory P. Wilson. "A new Late Cretaceous iguanomorph from North America and the origin of New World Pleurodonta (Squamata, Iguania)." Proceedings of the Royal Society B: Biological Sciences 284, no. 1847 (2017): 20161902. http://dx.doi.org/10.1098/rspb.2016.1902.

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Iguanomorpha (stem + crown Iguania) is a diverse squamate clade with members that predominate many modern American lizard ecosystems. However, the temporal and palaeobiogeographic origins of its constituent crown clades (e.g. Pleurodonta (basilisks, iguanas, and their relatives)) are poorly constrained, mainly due to a meagre Mesozoic-age fossil record. Here, we report on two nearly complete skeletons from the Late Cretaceous (Campanian) of North America that represent a new and relatively large-bodied and possibly herbivorous iguanomorph that inhabited a semi-arid environment. The new taxon e

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de, Andrade Ivanilza, M. Francilene Silva, Thales Ribeiro, and Simon Mayo. "Dracontium nivosum (Lem.) G.H.Zhu (Araceae): range extension from Amazonia to a brejo forest refugium in Northeast Brazil confirmed." Check List 12, no. (3) (2016): 1–7. https://doi.org/10.15560/12.3.1908.

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The 558 km range extension of the Amazonian aroid <em>Dracontium nivosum</em> (Lem.) G.H.Zhu into semi-arid Northeast Brazil is confirmed. This species occurs in Ceará in threatened fragments of <em>brejo</em> forest at ca. 580–870 m elevation. An illustrated taxonomic description is provided. The species' Extent of Occurrence (EOO) is estimated as 356,392 km<sup>2</sup> (meets Least Concern); the Area of Occupancy (AOO), 60 km<sup>2</sup> using a 2×2 km cell (Endangered). Within Ceará the EOO is 41.4 km<sup>2</sup> (Critically Endangered) and the AOO is 16 km<sup>2 </sup>(Endangered).

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Montalvo, Victor H., Carolina Sáenz-Bolaños, Luis D. Alfaro, et al. "Seasonal use of waterholes and pathways by macrofauna in the dry forest of Costa Rica." Journal of Tropical Ecology 35, no. 2 (2019): 68–73. http://dx.doi.org/10.1017/s0266467418000457.

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AbstractTemporal and spatial scarcity of water in semi-arid and seasonal ecosystems often leads to changes in movements and behaviour of large vertebrates, and in the neotropics this dynamic is poorly understood due to logistical and methodological limitations. Here we used camera trapping to elucidate variation in patterns of seasonal use of waterholes and pathways by 10 large-mammal and four large-bird species in the dry forest of north-western Costa Rica. From 2011 to 2015, we deployed trail cameras at 50 locations, including waterholes and three types of pathway (roads, human trails and an

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Schrumpf, Marion, Wolfgang Zech, Jan C. Axmacher, and Herbert V. M. Lyaruu. "Biogeochemistry of an afrotropical montane rain forest on Mt. Kilimanjaro, Tanzania." Journal of Tropical Ecology 22, no. 1 (2005): 77–89. http://dx.doi.org/10.1017/s0266467405002907.

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In contrast to their well-studied counterparts in the Neotropics and in Asia, East African montane rain forests are surrounded by semi-arid savanna plains. These plains have a high erosion potential for salt crusts accumulated at the soil surface. Hence it may be hypothesized that East African montane forest ecosystems experience strongly enhanced nutrient inputs via dry deposition, which alters their overall biogeochemistry. The aim of our study was to test this hypothesis by investigating K, Mg, Ca, Na and N-forms in rainfall, throughfall, fine litter, litter percolate and soil solution of a

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Cavalcanti, Liana Monique Paiva, Luciana Vieira de Paiva, and Leonardo Fernandes França. "Effects of rainfall on bird reproduction in a semi-arid Neotropical region." Zoologia 33, no. 6 (2016): 1–6. https://doi.org/10.1590/S1984-4689zool-20160018.

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Cavalcanti, Liana Monique Paiva, Paiva, Luciana Vieira de, França, Leonardo Fernandes (2016): Effects of rainfall on bird reproduction in a semi-arid Neotropical region. Zoologia (e20160018) 33 (6): 1-6, DOI: 10.1590/S1984-4689zool-20160018, URL: http://dx.doi.org/10.1590/s1984-4689zool-20160018

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Rezende, Renan de Souza, José Luis Costa Novaes, Cristiano Queiroz de Albuquerque, Rodrigo Silva Da Costa, and José Francisco Gonçalves Junior. "Aquatic invertebrates increase litter breakdown in Neotropical shallow semi-arid lakes." Journal of Arid Environments 154 (July 2018): 8–14. http://dx.doi.org/10.1016/j.jaridenv.2018.03.002.

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Taili, Itainara, Fabiano Séllos Costa, João Marcelo Azevedo de Paula Antunes, et al. "Characterization of bone lesions and bone mineral density of roadkilled wild animals in the Brazilian semi-arid." Neotropical Biology and Conservation 19, no. 4 (2024): 427–48. http://dx.doi.org/10.3897/neotropical.19.e132703.

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Highways are one of the anthropogenic factors that have the greatest impact on terrestrial biodiversity. Barriers, depletion effects, and roads are the most common locations of wild animal roadkill, leading to biodiversity loss in wild vertebrates. However, the corpses of these animals can be used as opportunistic samples, an excellent source of information on topics such as population dynamics, which is one of the aims of road ecology. Nonetheless, there are only a few studies on injuries in roadkilled wild animals. Between 2018 and 2021, road monitoring was performed around three Federal Con

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Huber, Bernhard A., Guanliang Meng, Jiří Král, Herrera Ivalú M. Ávila, and Leonardo S. Carvalho. "Diamonds in the rough: Ibotyporanga (Araneae, Pholcidae) spiders in semi-arid Neotropical environments." European Journal of Taxonomy 963 (October 18, 2024): 1–169. https://doi.org/10.5852/ejt.2024.963.2687.

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Huber, Bernhard A., Meng, Guanliang, Král, Jiří, Ávila Herrera, Ivalú M., Carvalho, Leonardo S. (2024): Diamonds in the rough: Ibotyporanga (Araneae, Pholcidae) spiders in semi-arid Neotropical environments. European Journal of Taxonomy 963: 1-169, DOI: 10.5852/ejt.2024.963.2687, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2687/12427

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da, Silva Márcio J., Bruno R. S. Figueiredo, Robson T. C. Ramos, and Elvio S. F. Medeiros. "Food resources used by three species of fish in the semi-arid region of Brazil." Neotropical Ichthyology 8, no. 4 (2010): 819. https://doi.org/10.1590/S1679-62252010005000010.

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da Silva, Márcio J., Figueiredo, Bruno R. S., Ramos, Robson T. C., Medeiros, Elvio S. F. (2010): Food resources used by three species of fish in the semi-arid region of Brazil. Neotropical Ichthyology 8 (4): 819, DOI: 10.1590/S1679-62252010005000010, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000400012&lng=en&tlng=en

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Valentim, Gabriela Alves, Leonardo Mesquita Pinto, Ronaldo César Gurgel-Lourenço, Carlos Alberto de Sousa Rodrigues-Filho, and Jorge Iván Sánchez-Botero. "Population structure of the seahorse Hippocampus reidi (Syngnathiformes: Syngnathidae) in a Brazilian semi-arid estuary." Neotropical Ichthyology 21, no. 4 (2023): 1–19. https://doi.org/10.1590/1982-0224-2023-0004.

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Valentim, Gabriela Alves, Pinto, Leonardo Mesquita, Gurgel-Lourenço, Ronaldo César, Rodrigues-Filho, Carlos Alberto de Sousa, Sánchez-Botero, Jorge Iván (2023): Population structure of the seahorse Hippocampus reidi (Syngnathiformes: Syngnathidae) in a Brazilian semi-arid estuary. Neotropical Ichthyology (e230004) 21 (4): 1-19, DOI: 10.1590/1982-0224-2023-0004, URL: http://dx.doi.org/10.1590/1982-0224-2023-0004

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Santos, Alexandre Clistenes de A., and Érica P. Caramaschi. "Temporal variation in fish composition and abundance in a perennial tributary of the rio Paraguaçu, a little-known drainage in the Brazilian semi-arid region." Neotropical Ichthyology 9, no. 1 (2011): 153–60. https://doi.org/10.1590/S1679-62252011005000007.

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Santos, Alexandre Clistenes de A., Caramaschi, Érica P. (2011): Temporal variation in fish composition and abundance in a perennial tributary of the rio Paraguaçu, a little-known drainage in the Brazilian semi-arid region. Neotropical Ichthyology 9 (1): 153-160, DOI: 10.1590/S1679-62252011005000007, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100014&lng=en&tlng=en

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Huber, Bernhard A., Guanliang Meng, Jiří Král, Ivalú M. Ávila Herrera, and Leonardo S. Carvalho. "Diamonds in the rough: Ibotyporanga (Araneae, Pholcidae) spiders in semi-arid Neotropical environments." European Journal of Taxonomy 963 (October 18, 2024): 1–169. http://dx.doi.org/10.5852/ejt.2024.963.2687.

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Ninetinae are a group of small and short-legged pholcids that are largely restricted to dry habitats where they lead reclusive lives in and under objects on the ground. They have long been rare in collections and poorly studied. The genus Ibotyporanga Mello-Leitão, 1944 previously contained five species: four from the Brazilian Cerrado and Caatinga biomes, and one from northern Venezuela. Based on recent focused collecting in Brazil and northern Colombia, we describe 19 new species, all based on males and females: Ibotyporanga ziruma Huber sp. nov., I. walekeru Huber sp. nov., I. piojo Huber s

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de Souza-Silva, R. F., A. Rapini, and J. F. Morales. "MANDEVILLA CATIMBAUENSIS (APOCYNACEAE), A NEW SPECIES FROM THE SEMI-ARID REGION, PERNAMBUCO, BRAZIL." Edinburgh Journal of Botany 67, no. 1 (2010): 1–5. http://dx.doi.org/10.1017/s0960428609990230.

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Mandevilla (Apocynaceae) is a neotropical genus which is well represented in Brazil. A recent taxonomic revision of the Brazilian species of Mandevilla subgenus Mandevilla included eight new species, one of them from the State of Pernambuco. Nevertheless, while preparing a survey of Apocynaceae from the Brazilian semi-arid region, a new species of the subgenus was recognised. Mandevilla catimbauensis Souza-Silva, Rapini & J.F.Morales is here described and illustrated. It is a twining plant with elliptic, glabrous leaves and hypocrateriform, purple flowers, known only from the Vale do Catim

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Rosas-Ribeiro, Patrícia, Rodrigo Ranulpho, and Eduardo Venticinque. "New records and update on the geographic distribution of Lontra longicaudis (Olfers, 1818) (Carnivora: Mustelidae) in Seasonally Dry Tropical Forests of northeastern Brazil." Check List 13, no. (3) (2017): 1–8. https://doi.org/10.15560/13.3.2108.

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We confirmed occurrences of <em>Lontra longicaudis</em> (Olfers, 1818) in Seasonally Dry Tropical Forests (Caatinga) of 10 river basins in northeastern Brazil, reporting the first records of the species in five of them. The species was not found in river basins totally inserted in Caatinga, nor where Caatinga borders Cerrado (Piauí state), indicating a gap in the species distribution. We report the first otter occurrence in Piauí, in the Cerrado biome of the southern part of the state. The relevance of these results for Neotropical Otter conservation is discussed, and an update of the species

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de França Silveira Ribeiro, Martim, Pedro Luiz Bernardo da Rocha, Lys Angela Favaroni Mendes, Steven Franklin Perry, and Elisabeth Spinelli de Oliveira. "Physiological effects of short-term water deprivation in the South American sigmodontine rice rat Oligoryzomys nigripes and water rat Nectomys squamipes within a phylogenetic context." Canadian Journal of Zoology 82, no. 8 (2004): 1326–35. http://dx.doi.org/10.1139/z04-104.

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Ancestrally, oryzomyine rodents have a sylvan habit, but some species have colonized the semi-arid Brazilian Caatinga. Therefore, the clade provides a suitable model for studying adaptation to such environments within a phylogenetic framework. We investigated physiological responses to short-term water deprivation in two oryzomyine rodents kept in captivity. Oligoryzomys nigripes (Olfers, 1818), a small-bodied rodent, occupies the Caatinga, whereas Nectomys squamipes (Brants, 1827), which is larger and semi-aquatic, lives in moist habitats outside this region. Measurements were also carried ou

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Barbosa, Maria, and Wilson Costa. "Description of a new species of the catfish genus Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the rio de Contas basin, northeastern Brazil." Vertebrate Zoology 61 (December 13, 2011): 300–307. https://doi.org/10.3897/vz.61.e31157.

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Trichomycterus tete, new species is described from the upper rio de Contas basin, northeastern Brazil. It is the fi rst record of the genus to the Caatinga semi-arid region. The new species is distinguished from all its congeners by having a combination of eight pectoral-fin rays, the fi rst pectoral-fin ray prolonged as a fi lament, metapterygoid deeper than wide, short maxillary barbel reaching the middle of opercular patch of odontodes, narrow head (head width 68.07 – 77.5% HL), 11 dorsal-fin rays, caudal fin truncated, body slender (body depth 12.3 – 13.6% SL), shorter dorsal-fin base (dor

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Sánchez, Rocío, and Pedro G. Blendinger. "Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands." Emu - Austral Ornithology 114, no. 3 (2014): 229–33. http://dx.doi.org/10.1071/mu13082.

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Chaves, Luis Fernando, and Nestor Añez. "Nestedness patterns of sand fly (Diptera: Psychodidae) species in a neotropical semi-arid environment." Acta Tropica 153 (January 2016): 7–13. http://dx.doi.org/10.1016/j.actatropica.2015.10.001.

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Chellappa, S., M. R. Câmara, N. T. Chellappa, M. C. M. Beveridge, and F. A. Huntingford. "Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)." Brazilian Journal of Biology 63, no. 1 (2003): 17–26. http://dx.doi.org/10.1590/s1519-69842003000100004.

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The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil. Rainfall, temperature, pH, dissolved oxygen and electrical conductivity of the water were recorded monthly. Fish collected on a monthly basis were measured, weighed, dissected, sexed and the stage of maturation of the gonads were assessed by macro and microscopic means. The semi-arid study region has short spells of rain of 2-3 months duration interspersed with dry seasons. A positive correlation was observed between rainfall an

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Maltchik, Leonardo, and Manoel I. Silva-Filho. "Succession of macroinvertebrates in a short-term aquatic habitat in the neotropical semi-arid region." SIL Proceedings, 1922-2010 28, no. 3 (2002): 1482–85. http://dx.doi.org/10.1080/03680770.2001.11902703.

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Santos, Tarcísio Dourado, and Adauto de Souza Ribeiro. "Mutualistic interaction network structure between bird and plant species in a semi-arid Neotropical environment." Acta Oecologica 118 (May 2023): 103897. http://dx.doi.org/10.1016/j.actao.2023.103897.

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Elisei, Thiago, Edigleidson Valadares, Celso Feitosa Martins, and Fábio Aquino Albuquerque. "Diversity and Structure of Social Wasps Community (Hymenoptera: Vespidae, Polistinae) in Neotropical Dry Forest." Sociobiology 64, no. 1 (2017): 111. http://dx.doi.org/10.13102/sociobiology.v64i1.1261.

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In the northeastern part of Brazil, located 90% within the semi-arid region of the country, we can find areas that present quite peculiar characteristics, amongst these the Caatinga. This biome is characterized by the floristic composition formed of dry forest and in this semi-arid environment there is an increase in the supply of resources during the rainy season. This is a region lacking in research, particularly in the State of Paraíba, where no survey studies of social wasp were carried out yet. Social wasps are an important predator of plagues species. The objective of this study was to c

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Novaes, JLC, SIL Moreira, CEC Freire, MMO Sousa, and RS Costa. "Fish assemblage in a semi-arid Neotropical reservoir: composition, structure and patterns of diversity and abundance." Brazilian Journal of Biology 74, no. 2 (2014): 290–301. http://dx.doi.org/10.1590/1519-6984.14712.

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The aim of this study was to analyse the composition, structure and spatial and temporal patterns of diversity and abundance of the ichthyofauna of the Santa Cruz Reservoir in semi-arid Brazil. Data were collected quarterly at eight sampling locations on the reservoir between February 2010 and November 2011 using gillnets from 12- to 70-mm mesh that were left in the water for 12h00min during the night. We evaluated the composition, structure and assemblage descriptors (Shannon-Wiener diversity index and equitability, respectively) and catch per unit effort by the number (CPUEn) and biomass (CP

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Filho, Silvano Lima do Nascimento, Elton Jose de França, Mauro Melo de Júnior, and Ariadne do Nascimento Moura. "Interactions between benthic microalgae, nutrients and benthic macroinvertebrates in reservoirs from the semi-arid Neotropical region." Fundamental and Applied Limnology / Archiv für Hydrobiologie 192, no. 3 (2019): 237–54. http://dx.doi.org/10.1127/fal/2019/1180.

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Luna, Pedro, and Wesley Dáttilo. "A New Protocol Using Artificial Seeds to Evaluate Dietary Preferences of Harvester Ants in Semi-arid Environments." Sociobiology 65, no. 2 (2018): 149. http://dx.doi.org/10.13102/sociobiology.v65i2.1783.

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The preferences of seed intake by harvester ants (Pogonomyrmex spp.) have been debated for a long time, mainly due the lack of repeatable methods to draw clear conclusions. However, several characteristics of the food resource are well recognized as the drivers of such selective predation. For instance, resource quality (i.e., availability of carbohydrates, lipids, and proteins) is one factor that could explain the observed foraging patterns of Pogonomyrmex species. In this sense, experimental approaches using artificial resources (e.g., synthetic seeds/diaspores) have provided an useful and a

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Teixeira, A. A. M., S. V. Brito, D. A. Teles, et al. "Helminths of the Lizard Salvator merianae (Squamata, Teiidae) in the Caatinga, Northeastern Brazil." Brazilian Journal of Biology 77, no. 2 (2016): 312–17. http://dx.doi.org/10.1590/1519-6984.13515.

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Abstract The lizard Salvator merianae is a widely distributed species in South America, occurring from southern Amazonia to the eastern Andes and northern Patagonia. Studies on the parasitic fauna of this lizard have revealed that it is a host for helminths in various Brazilian biomes. The present work provides new parasitological data on the gastrointestinal nematodes associated with the lizard S. merianae. Sixteen specimens were analyzed from nine different locations in a semi-arid region in northeastern Brazil. Five species of nematodes were identified. Oswaldofilaria petersi was first reco

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HUBER, BERNHARD A., GUANLIANG MENG, JIMMY CABRA GARCÍA, and LEONARDO S. CARVALHO. "Thriving in dry conditions: on the Neotropical spider genus Galapa (Araneae: Pholcidae)." Zootaxa 5419, no. 3 (2024): 301–47. http://dx.doi.org/10.11646/zootaxa.5419.3.1.

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The genus Galapa Huber, 2000 includes tiny spiders (body length <1.5 mm) restricted to semi-arid habitats. It has long been thought to be endemic to the Galapagos Islands until G. spiniphila Huber, 2020 was described from the Venezuelan Paraguaná Peninsula. Here, we support this generic assignment with molecular (CO1) data and describe two new species from Colombia (G. gabito Huber sp. n.) and Costa Rica (G. murphyi Huber sp. n.), showing that the genus is actually widely distributed. Distribution modelling identifies several high suitability areas for Galapa, all of which are poorly sample

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Paixão, Victoria Helen Figueiredo, Phoeve Macario, and Mauro Pichorim. "Breeding biology of the Dark-billed Cuckoo Coccyzus melacoryphus (Aves: Cuculidade) in a semi-arid Neotropical region." Ornithology Research 29, no. 2 (2021): 68–75. http://dx.doi.org/10.1007/s43388-021-00054-1.

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Pinto, Anderson Silva, Fernanda Kalina da Silva Monteiro, Maiara Bezerra Ramos, Rubenice da Costa Correia Araújo, and Sérgio de Faria Lopes. "Invasive plants in the Brazilian Caatinga: a scientometric analysis with prospects for conservation." Neotropical Biology and Conservation 15, no. 4 (2020): 503–20. http://dx.doi.org/10.3897/neotropical.15.e57403.

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Understanding the impacts caused by invasive plant species, especially in regions where studies are scarce, is of great importance to the development of management and conservation strategies. Amongst the biomes present in Brazil, the Caatinga (Dry Tropical Forest) stands out for having had few studies dealing with biological invasions by plants and animals. An evaluation of scientific production can provide a means by which the progress of invasion-related studies can be assessed, as well as identify research gaps and provide a broad overview of the importance of invasions in this biome. Thus

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Silva do Nascimento, W., A. Soares de Araújo, N. T. Chellappa, and S. Chellappa. "Reproductive strategy of Leporinus piau (Fowler, 1941), a neotropical freshwater fish from the semi-arid region of Brazil." Journal of Applied Ichthyology 29, no. 4 (2012): 877–80. http://dx.doi.org/10.1111/jai.12020.

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Amaral, Silvana Vargas do, Ana Maria Leal-Zanchet, and Rodrigo Lopes Ferreira. "A new species of land planarian (Platyhelminthes: Continenticola) from a limestone cave in a Neotropical semi-arid environment." Studies on Neotropical Fauna and Environment 54, no. 2 (2019): 87–96. http://dx.doi.org/10.1080/01650521.2019.1583712.

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França, Leonardo Fernandes, Victória Helen Figueiredo-Paixão, Thales Afonso Duarte-Silva, and Kamila Barbosa dos Santos. "The effects of rainfall and arthropod abundance on breeding season of insectivorous birds, in a semi-arid neotropical environment." Zoologia 37 (August 28, 2020): 1–7. http://dx.doi.org/10.3897/zoologia.37.e37716.

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Rainfall in tropical semi-arid areas may act as a reliable cue for timing bird reproduction, since it precedes future food supply. With this in mind, we set-up a study to test the reproductive response of insectivorous bird to arthropod abundance and rainfall patterns. Sampling occurred in a seasonally dry Neotropical forest, in north-eastern Brazil, between October, 2015 and October 2016, at 14-day intervals. We used brood patch to assess reproductive periodicity of insectivorous birds (eight species, 475 captures, 121 patch records). We sampled arthropods to quantify abundance, using biomass

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Jaksić, Fabian M., Peter Feinsinger, Jaime E. Jiménez, Fabian M. Jaksic, and Jaime E. Jimenez. "A Long-Term Study on the Dynamics of Guild Structure among Predatory Vertebrates at a Semi-Arid Neotropical Site." Oikos 67, no. 1 (1993): 87. http://dx.doi.org/10.2307/3545099.

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França, Leonardo Fernandes, Rayanison Dagner Costa Morais, Saulo Sidarta Henrique de Brito, Marina Rodrigues Bezerra Dias, Luciana Vieira de Paiva, and Carlos Allan de Souza Oliveira. "Constant or varied survival? Effects of seasonal and unpredictable factors on bird survival in a Neotropical semi-arid region." Journal of Arid Environments 182 (November 2020): 104278. http://dx.doi.org/10.1016/j.jaridenv.2020.104278.

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França, Leonardo Fernandes, Victória Helen Figueiredo-Paixão, Thales Afonso Duarte-Silva, and Santos Kamila Barbosa dos. "The effects of rainfall and arthropod abundance on breeding season of insectivorous birds, in a semi-arid neotropical environment." Zoologia 37 (August 28, 2020): 1–7. https://doi.org/10.3897/zoologia.37.e37716.

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Rainfall in tropical semi-arid areas may act as a reliable cue for timing bird reproduction, since it precedes future food supply. With this in mind, we set-up a study to test the reproductive response of insectivorous bird to arthropod abundance and rainfall patterns. Sampling occurred in a seasonally dry Neotropical forest, in north-eastern Brazil, between October, 2015 and October 2016, at 14-day intervals. We used brood patch to assess reproductive periodicity of insectivorous birds (eight species, 475 captures, 121 patch records). We sampled arthropods to quantify abundance, using biomass

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Costa, Wilson, and Pedro Amorim. "A new annual killifish species of the Hypsolebias flavicaudatus complex from the São Francisco River basin, Brazilian Caatinga (Teleostei: Cyprinodontiformes: Rivulidae)." Vertebrate Zoology 61 (June 22, 2011): 99–104. https://doi.org/10.3897/vz.61.e31141.

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The Hypsolebias fl avicaudatus species complex is a clade of annual killifishes inhabiting seasonal pools associated to São Francisco River basin, in the semi-arid Caatinga region of northeastern Brazil. The analysis of both morphological and molecular data supports recognition of a new species of that complex, herein named as Hypsolebias guanambi. It was collected in the upper section of the Carnaíba de Dentro River drainage and is distinguished from all other species of the complex by having the dorsal fin more posteriorly placed in females, presence of short fi lamentous rays on the dorsal

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OLIVEIRA, ILANA C., FÁBIO S. ESPÍRITO SANTO, ALESSANDRO RAPINI, MARCOS C. DÓREA, and REYJANE P. OLIVEIRA. "Ruehssia bahiensis: a new species of Apocynaceae endemic to a floristically neglected area within the Semi-arid of Bahia, Brazil." Phytotaxa 629, no. 2 (2023): 147–54. http://dx.doi.org/10.11646/phytotaxa.629.2.4.

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Ruehssia belongs to the Apocynaceae, tribe Marsdeniae, including all neotropical species of this family with erect pollinia. This genus includes about 110 species, 44 of which occur in Brazil. In recent floristic surveys conducted within the Semi-arid region of Bahia state, Northeast Brazil, a new species of Ruehssia was recognised, which is herein described and illustrated. It resembles R. pickelii (Fontella & Morillo) F.Esp.Santo & Rapini, known from the caatinga vegetation in Pernambuco, Paraíba and Rio Grande do Norte states, but has the corolla lobes adaxially pubescent (vs glabro

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Jaksié, F. M., J. E. Jiménez, S. A. Castro, and P. Feinsinger. "Numerical and functional response of predators to a long-term decline in mammalian prey at a semi-arid Neotropical site." Oecologia 89, no. 1 (1992): 90–101. http://dx.doi.org/10.1007/bf00319020.

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Griotti, Mariana, Cristian J. Grismado, Sergio Roig-Juñent, and Martín J. Ramírez. "Taxonomy and phylogenetic analysis of the South American genus." Invertebrate Systematics 36, no. 4 (2022): 306–53. http://dx.doi.org/10.1071/is21068.

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The systematics of Philodromidae is far from complete, especially for the Neotropical genera. Among these, Petrichus Simon, 1886 is a poorly known genus restricted to arid and semi-arid environments of South America. In this work, we performed a total-evidence analysis to assess the phylogenetic relationships of Petrichus and revised the taxonomy. Petrichus is monophyletic and closer to Titanebo and the New World Ebo. Within Petrichus, two clades are obtained: the Eremean Clade, containing five species displaying a Neotropical distribution; and the Patagonian Clade, with the seven species inha

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Hernández-Oria, José Guadalupe, Richard I. Yeaton Hawkins, Eduardo Castaño Tostado, and Víctor L. Barradas. "Early establishment and survival of the neotropical dry deciduous forest treeLysiloma microphyllumfrom mountainous Bajio Queretano, Mexico." Journal of Tropical Ecology 33, no. 3 (2017): 213–27. http://dx.doi.org/10.1017/s0266467417000116.

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Abstract:The tropical dry deciduous forest (TDF) of the semi-arid region of Bajio in Mexico is dominated by successional communities, in whichLysiloma microphyllumis irregularly distributed, however the environmental factors influencing its establishment have been poorly studied. We conducted field experiments to isolate the impact of three factors on the early life-history stages of this tree. Over a 2-y period, we monitored the effects of (1) predation, (2) understorey light and (3) aspect on germination, seed-to-seedling transition (establishment) and seedling survival, and we found that op

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DEMITE, PETERSON R., ANTONIO C. LOFEGO, and REINALDO J. F. FERES. "A new species of Amblyseius Berlese (Acari: Phytoseiidae) from Brazil." Zootaxa 1445, no. 1 (2007): 65–68. http://dx.doi.org/10.11646/zootaxa.1445.1.6.

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Phytoseiid mites have received considerable world wide attention because of their potential as natural enemies of phytophagous mites (McMurtry, 1984). The Amblyseius obtusus group Chant is the largest species group in the genus Amblyseius. Chant & McMurtry (2004) divided the group into seven subgroups based on spermathecal morphology. The andersoni subgroup of Chant & McMurtry, 2004 is characterized by a spermatheca with the calyx dish-, cup-, bell-, or V-shaped, with the length/width ratio at the mid-point of the calyx < 3:1. A total of 24 species of the andersoni subgroup are know

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Rios, D. P., V. E. S. Damasceno, D. F. R. Alves, W. M. S. Souto, and B. G. N. Pralon. "Seasonal variation in population structure and sexual maturity of Sylviocarcinus pictus (Decapoda: Trichodactylidae) in a Neotropical intermittent river." International Journal of Limnology 58 (2022): 5. http://dx.doi.org/10.1051/limn/2022007.

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Sylviocarcinus pictus is a South American freshwater crab recently recorded for the first time in the Caatinga biome. Our objective was to characterize the population and reproductive biology of S. pictus from the semi-arid northeastern region of Brazil and verify the influence of seasonal environmental changes in this population. The crabs were collected from a stretch of Guaribas River, PI, Brazil, every month between October 2013 and September 2014. The crabs were identified, sexed and the carapace width (CW) was measured. Physiological sexual maturity was determined based on the gonadal de

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Blanco, Erika Lorena, Fermín Rada, Jorge Paolini, and José Argenis Guerrero. "Effects of induced water deficit and biofertilization on growth dynamics and bulb yield of onion (Allium cepa L.) in a neotropical semi-arid environment." Canadian Journal of Soil Science 101, no. 3 (2021): 494–506. http://dx.doi.org/10.1139/cjss-2021-0011.

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In a scenario of world population increase and climate change, an efficient use of water is key for agricultural production. Onion is one of the most profitable crops and can adapt to particular conditions of water stress. The objective of this research was to determine growing degree-days and accumulated radiation under non-stress conditions and yield of an F1 2000 hybrid of onion (Allium cepa L.) under water deficit (WD) and biofertilization in a semi-arid environment. An established nutrient requirement of 247 kg N, 240 kg P2O5 (105 kg P), 240 kg K2O (199 kg K), and two irrigation factors w

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Sarasola, José Hernán, and Juan José Maceda. "Past and current evidence of persecution of the Endangered crowned eagle Harpyhaliaetus coronatus in Argentina." Oryx 40, no. 3 (2006): 347–50. http://dx.doi.org/10.1017/s0030605306001013.

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The crowned eagle Harpyhaliaetus coronatus is a large Neotropical eagle categorized as Endangered throughout its range. However, the threats to this species are poorly understood. We present data on the causes of death of crowned eagles in semi-arid forests of La Pampa province, central Argentina. Data was obtained from field surveys and from interviews with 62 local landowners during 1999–2004. Over this period five eagles were shot, one killed by a car, one was found dead in a cattle water trough, and one was found in captivity. From the interviews information was obtained about a further 10

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