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1. Automatic recognition method for the repeat size of a weave pattern on a woven fabric image

Author:
Guo, Yingchun; Ge, Xin; Yu, Ming; Yan, Gang; Liu, Yi
Source:
Textile research journal 2019 v.89 no.14 pp. 2754-2775
ISSN:
1746-7748
Subject:
Panama,   etc   ; automatic detection; color; textile fibers; texture; woven fabrics; yarns;     Show all 7 Subjects
Abstract:
... This paper proposes a seven-characteristic method called Local Feature Similarity (LFS) to recognize weave pattern repeat automatically. The LFS method includes yarn feature acquisition, yarn marking, yarn marking subsequence segmentation, yarn marking subsequence similarity calculation and weave pattern repeat size, which recognizes the repeat size by the texture of the fabric image without consi ...
DOI:
10.1177/0040517518801197

2. The Gulf of Fonseca: An Important Central American Stopover and Wintering Site for North American Gull-Billed Terns (Gelochelidon nilotica)

Author:
Dort, John Van; Juárez, Roselvy C.
Source:
Waterbirds 2019 v.42 no.1 pp. 90-94
ISSN:
1524-4695
Subject:
Panama Canal Zone,   etc   ; Laridae; habitat preferences; winter; wintering grounds; Honduras;     Show all 6 Subjects
Abstract:
... North American populations of Gull-billed Terns (Gelochelidon nilotica) are thought to winter in low numbers throughout Central America, with highest single-site concentrations of up to 200 individuals known from the Panama Canal zone. This paper presents information on a previously unknown stopover and wintering site in southern Honduras, where up to 1,640 individuals, approximately 20% of the en ...
DOI:
10.1675/063.042.0110

3. Una nueva especie y otros registros de Magnoliaceae para Colombia

Author:
Cogollo-Pacheco, Álvaro; Hoyos-Gómez, Saúl E.; Serna-González, Marcela
Source:
Brittonia 2019 v.71 no.1 pp. 32-38
ISSN:
0007-196X
Subject:
Panama,   etc   ; Magnolia; new species; plant taxonomy; Colombia; Nicaragua; Venezuela;     Show all 7 Subjects
Abstract:
... A new species of Magnolia (Magnoliaceae), from Antioquia Province, Colombia is described. Magnolia frontinoensis, only known from a restricted area of the Western Cordillera, from 1700–1940 m, is recognized by the lamina bases decurrent and revolute, and the fruits small (11.7–29 × 8.4–21.5 mm). Besides the new species, two new records for Colombia are presented: Magnolia gloriensis, initially kno ...
DOI:
10.1007/s12228-018-9554-0

4. The contribution of agroecology to the persistence of family agriculture in Panama

Author:
Santamaria-Guerra, Julio; González, Gladys I.
Source:
Agroecology and sustainable food systems 2017 v.41 no.3-4 pp. 349-365
ISSN:
2168-3573
Subject:
Panama,   etc   ; activists; agroecology; politics;     Show all 4 Subjects
Abstract:
... Family-based agroecological agriculture has historical antecedents registered from: the life stories of the precursors of the different “agro-cultures” practiced; the experiences of design and implementation of agroecological systems; and the social activism of people and organizations aiming to stop the neoliberal politics that undermine the sustainability of rural ways of life. The general objec ...
DOI:
10.1080/21683565.2017.1286281

5. Acropyga oreithauma (Hymenoptera: Formicidae), a New Species from Panama

Author:
LaPolla, John S.; Williams, Jason L.; Fan, Eric
Source:
Transactions of the American Entomological Society 2017 v.143 no.1 pp. 1-5
ISSN:
0002-8320
Subject:
Panama,   etc   ; Formicidae; new species;     Show all 3 Subjects
Abstract:
... A new species of Acropyga (Hymenoptera: Formicidae: Formicinae) is described from Panama. The largest known Acropyga species in the New World, Acropyga oreithauma, new species is described and images are provided. Based on its morphology, A. oreithauma is likely closely related to A. exanguis and A. fuhrmanni. These three Acropyga are also known to enter into trophobiotic relationships with the sa ...
DOI:
10.3157/061.143.0102

6. Army ant invasions reveal phylogeographic processes across the Isthmus of Panama

Author:
Brady, Seán G.
Source:
Molecular ecology 2017 v.26 no.3 pp. 703-705
ISSN:
0962-1083
Subject:
Panama,   etc   ; Eciton; females; phylogeography;     Show all 4 Subjects
Abstract:
... Female army ants cannot fly, making them very poor dispersers across water barriers. This dependence on terrestrial corridors motivated the investigation by Winston et al. (), published in this issue of Molecular Ecology, into the role of Panamanian isthmus formation in the diversification of Eciton army ants. Complete closure of this isthmus occurred around three million years ago (3 Ma), but it ...
DOI:
10.1111/mec.13981

7. Phylogenetics and geography of speciation in New World Halichoeres wrasses

Author:
Wainwright, Peter C.; Santini, Francesco; Bellwood, David R.; Robertson, D. Ross; Rocha, Luiz A.; Alfaro, Michael E.
Source:
Molecular phylogenetics and evolution 2018 v.121 pp. 35-45
ISSN:
1055-7903
Subject:
Panama,   etc   ; Halichoeres; allopatry; islands; monophyly; sympatry;     Show all 6 Subjects
Abstract:
... The New World Halichoeres comprises about 30 small to medium sized wrasse species that are prominent members of reef communities throughout the tropical Western Atlantic and Eastern Pacific. We conducted a phylogenetic analysis of this group and related lineages using new and previously published sequence data. We estimated divergence times, evaluated the monophyly of this group, their relationshi ...
DOI:
10.1016/j.ympev.2017.12.028

8. A New Species of the Glass Electric Knifefish Genus Eigenmannia Jordan and Evermann (Teleostei: Gymnotiformes: Sternopygidae) from Río Tuíra Basin, Panama

Author:
Dutra, Guilherme Moreira; de Santana, Carlos David; Wosiacki, Wolmar Benjamin
Source:
Copeia 2017 v.105 no.1 pp. 85-91
ISSN:
0045-8511
Subject:
Panama,   etc   ; Eigenmannia; basins; new species;     Show all 4 Subjects
Abstract:
... A new species of Eigenmannia is described from the Río Pucuro, Río Tuíra basin, Panama. It is diagnosed from all congeners by the position of the mouth, the color pattern, the number of anal-fin rays, the number of scales on lateral line, the number of scales rows above the lateral line, the number and arrangement of teeth on the dentary, the number of precaudal vertebrae, the relative depth of th ...
DOI:
10.1643/CI-16-439

9. A Striking New Species of Macrocopturus Heller, 1895 (Coleoptera: Curculionidae: Conoderinae) from Panama: Raising the Question of Coloration

Author:
Hespenheide, Henry A.
Source:
The Coleopterists' bulletin 2017 v.71 no.1 pp. 74-76
ISSN:
0010-065X
Subject:
Panama,   etc   ; Macrocopturus; color; new species;     Show all 4 Subjects
Abstract:
... Macrocopturus richardpackeri Hespenheide, new species, is described from Panama and named in honor of Richard Roland Edward Packer. The possibility of mimicry and the necessity for an adaptive explanation are discussed for this and a complex of red-spotted species in several conoderine genera. ...
DOI:
10.1649/0010-065X-71.1.74

10. Continental margin response to multiple arc-continent collisions: The northern Andes-Caribbean margin

Author:
Montes, Camilo; Rodriguez-Corcho, Andres Felipe; Bayona, German; Hoyos, Natalia; Zapata, Sebastian; Cardona, Agustin
Source:
Earth-science reviews 2019 pp. 102903
ISSN:
0012-8252
Subject:
Panama,   etc   ; Cretaceous period; Eocene epoch; Miocene epoch; altitude; basins; cooling; deformation; Andes region; South America;     Show all 10 Subjects
Abstract:
... An integration of diverse strain markers into a palinspastic reconstruction of the northern Andes provides a first-order quantitative approximation to the response of a complex margin to two consecutive arc-continent collisions. A palinspastic reconstruction highlights margin-parallel displacements, with crustal blocks traveling ~400 to ~500 km northward, while the margin-normal shortening compone ...
DOI:
10.1016/j.earscirev.2019.102903

11. Comparing Allee effect-based and dispersal-based neutral models for species abundance distribution patterns

Author:
Wu, Yongbin; Chen, Youhua; Shen, Tsung-Jen
Source:
Ecological informatics 2019 v.52 pp. 69-73
ISSN:
1574-9541
Subject:
Panama,   etc   ; Allee effect; census data; immigration; islands; models; species abundance; trees;     Show all 8 Subjects
Abstract:
... Dispersal is important for biodiversity maintenance in both neutral and niche theories. However, little is known about the potential role of Allee effect at the community level. In the present study, we developed neutral models for quantifying the separate and joint influences of the Allee effect and dispersal process, respectively, on species abundance distribution (SAD) patterns. Tree census dat ...
DOI:
10.1016/j.ecoinf.2019.05.002

12. Muscles and muscle scars in fossil malacostracan crustaceans

Author:
Klompmaker, Adiël A.; Hyžný, Matúš; Portell, Roger W.; Jauvion, Clément; Charbonnier, Sylvain; Fussell, Shane S.; Klier, Aaron T.; Tejera, Raymond; Jakobsen, Sten L.
Source:
Earth-science reviews 2019 v.194 pp. 306-326
ISSN:
0012-8252
Subject:
Panama,   etc   ; Crustacea; Late Jurassic epoch; data collection; fossils; information sources; mineralization; muscle fibers; muscles; rocks; shrimp;     Show all 11 Subjects
Abstract:
... Exceptionally preserved specimens yield critical information about the soft-part anatomy and the evolution of organisms through time. We compiled the first global dataset of exceptionally preserved muscles in malacostracans consisting of 47 occurrences, including 18 new records, predominantly preserved in Mesozoic Konservat-Lagerstätten (>70% of occurrences). Early diagenetic mineralization throug ...
DOI:
10.1016/j.earscirev.2019.04.012

13. A New Species of Philothalpus Kraatz (Coleoptera: Staphylinidae) from the Andes of Colombia

Author:
Hoyos-Benjumea, Daniela; López-García, Margarita M.
Source:
TheColeopterists' bulletin 2019 v.73 no.2 pp. 428-432
ISSN:
0010-065X
Subject:
Panama,   etc   ; Guadua; Staphylinidae; forests; new species; plantations; scientific illustration; taxon descriptions; Andes region; Colombia;     Show all 10 Subjects
Abstract:
... A new species of the staphylinid genus Philothalpus Kraatz, 1857 from Colombia is described and illustrated. This is the first known species from the Colombian Andes and is found in the coffee region (Quindío and Risaralda departments) associated with secondary premontane forests, Guadua forests, and coffee plantations. The new species is compared with Philothalpus chloropennis Chatzimanolis and A ...
DOI:
10.1649/0010-065X-73.2.428

14. Documenting neotropical diversity of phoronids with DNA barcoding of planktonic larvae

Author:
Collin, Rachel; Venera‐Pontón, Dagoberto E.; Driskell, Amy C.; Macdonald, Kenneth S.; Chan, Kit‐Yu Karen; Boyle, Michael J.
Source:
Invertebrate biology 2019 v.138 no.2 pp. e12242
ISSN:
1077-8306
Subject:
Panama,   etc   ; DNA barcoding; Neotropics; adults; blood; coasts; larvae; pigmentation; plankton; Caribbean;     Show all 10 Subjects
Abstract:
... Phoronid larvae, actinotrochs, are beautiful and complicated organisms which have attracted as much, if not more, attention than their adult forms. We collected actinotrochs from the waters of the Pacific and Caribbean coasts of Panama, and used DNA barcoding of mtCOI, as well as 16S and 18S sequences, to estimate the diversity of phoronids in the region. We discovered three operational taxonomic ...
DOI:
10.1111/ivb.12242

15. Molecular phylogeny of the ghost knifefishes (Gymnotiformes: Apteronotidae)

Author:
Bernt, Maxwell J.; Tagliacollo, Victor A.; Albert, James S.
Source:
Molecular phylogenetics and evolution 2019 v.135 pp. 297-307
ISSN:
1055-7903
Subject:
Panama,   etc   ; Apteronotus; Neotropics; fish; loci; mitochondrial genes; phylogeny; ribosomal DNA; rivers; Argentina;     Show all 10 Subjects
Abstract:
... Ghost knifefishes (Gymnotiformes: Apteronotidae) are weakly electric fishes that possess a high-frequency, neurogenic electric organ discharge. They are found throughout the humid Neotropics from Panama to Argentina and are most diverse and abundant in the channels of large lowland rivers. Apteronotidae is the most species-rich family of Neotropical electric knifefishes with 96 valid species in 15 ...
DOI:
10.1016/j.ympev.2019.02.019

16. Negative effects of parasitic lung nematodes on the fitness of a Neotropical toad (Rhinella horribilis)

Author:
Kelehear, Crystal; Saltonstall, Kristin; Torchin, Mark E.
Source:
Parasitology 2019 v.146 no.7 pp. 928-936
ISSN:
1469-8161
Subject:
Panama,   etc   ; Nematoda; Neotropics; Rhinella; dose response; genetic variation; larvae; lungs; parasites; pathogens; toads;     Show all 11 Subjects
Abstract:
... Pathogens are increasingly implicated in amphibian declines but less is known about parasites and the role they play. We focused on a genus of nematodes (Rhabdias) that is widespread in amphibians and examined their genetic diversity, abundance (prevalence and intensity), and impact in a common toad (Rhinella horribilis) in Panama. Our molecular data show that toads were infected by at least four ...
DOI:
10.1017/S0031182019000106
PubMed:
30859923 30859923

17. Phylogeography of eagle rays of the genus Aetobatus: Aetobatus narinari is restricted to the continental western Atlantic Ocean

Author:
Sales, João Bráullio L.; de Oliveira, Cintia Negrão; dos Santos, Wagner César Rosa; Rotundo, Matheus Marcos; Ferreira, Yrlene; Ready, Jonathan; Sampaio, Iracilda; Oliveira, Claudio; Cruz, Vanessa P.; Lara-Mendoza, Raul E.; da Silva Rodrigues-Filho, Luis Fernando
Source:
Hydrobiologia 2019 v.836 no.1 pp. 169-183
ISSN:
0018-8158
Subject:
Panama,   etc   ; Aetobatus narinari; coasts; fauna; fisheries management; mitochondria; phylogeny; phylogeography; Atlantic Ocean; Brazil; Florida; Mexico;     Show all 12 Subjects
Abstract:
... The biogeography and conservation of elasmobranch species was increasingly addressed in the recent past, but the southwestern Atlantic Ocean fauna is still one of the least studied. Reliable delimitation of the distribution range of species is fundamental to conservation and development of fisheries management strategies. A recent molecular study of the cryptic Aetobatus narinari species complex r ...
DOI:
10.1007/s10750-019-3949-0

18. The very strong coastal El Niño in 1925 in the far-eastern Pacific

Author:
Takahashi, Ken; Martínez, Alejandra G.
Source:
Climate dynamics 2019 v.52 no.12 pp. 7389-7415
ISSN:
0930-7575
Subject:
Panama,   etc   ; El Nino; asymmetry; climate; cold; rain; rivers; seasonal variation; wind direction; Ecuador; Peru;     Show all 11 Subjects
Abstract:
... The 1925 El Niño (EN) event was the third strongest in the twentieth century according to its impacts in the far-eastern Pacific (FEP) associated with severe rainfall and flooding in coastal northern Peru and Ecuador in February–April 1925. In this study we gathered and synthesised a large diversity of in situ observations to provide a new assessment of this event from a modern perspective. In con ...
DOI:
10.1007/s00382-017-3702-1

19. A destination choice model for very large gas carriers (VLGC) loading from the US Gulf

Author:
Bai, Xiwen; Lam, Jasmine Siu Lee
Source:
Energy 2019 v.174 pp. 1267-1275
ISSN:
0360-5442
Subject:
Panama,   etc   ; energy; freightage; markets; models; planning; prices; propane; shipping; traffic; United States;     Show all 11 Subjects
Abstract:
... This study is one of the first to model energy shipping destination choice behaviors and identify their associations with various market factors from charterers' perspective. The paper uses very large gas carriers loading from the US Gulf as an illustration. Attributes include freight rate, propane price spread, bunker costs and number of ships in the destination areas. It also identifies the effe ...
DOI:
10.1016/j.energy.2019.02.148

20. Wildlife rescue and relocation efforts associated with the Panamá Canal Third Locks Expansion Project

Author:
Swan, Jennifer L.; Carver, Andrew; Correa, Nestor; Nielsen, Clayton K.
Source:
Tropical zoology 2019 v.32 no.2 pp. 58-74
ISSN:
1970-9528
Subject:
Panama,   etc   ; conservation areas; habitats; human development; humans; species diversity; watersheds; wildlife; United States;     Show all 9 Subjects
Abstract:
... Since the ceding of the Panamá Canal from the United States to the Republic of Panamá in 1999, human development has accelerated in Panamá, resulting in the loss of habitat and declines in wildlife populations. We implemented a wildlife rescue and relocation program associated with the third locks expansion project of the Panamá Canal and here describe our efforts and findings. During 2007–2010, 8 ...
DOI:
10.1080/03946975.2019.1589264