Are some of the birds endemic to the Tres Marías Islands (Mexico) species?

Silva, Héctor Gómez de; Villafaña, Mónica G. Pérez; Cruz-Nieto, Javier; Cruz-Nieto, M. A.

doi:10.25226/bboc.v140i1.2020.a3

Cited by 5 publications

(5 citation statements)

References 44 publications

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“…Furthermore, phylogeographic patterns of species sharing (totally or partially) the geographic distribution of A. rutila show similarities (e.g. Turdus rufopalliatus: Montaño-Rendón et al 2015;Ortíz-Ramírez et al 2018;de Silva et al 2020). In general, the diversification processes have resulted from a variety of events, sharing the explanations of an intricate orographic history, climatic fluctuations during the Pleistocene, and thus low signals of gene flow favored by the isolation of populations due to distance or historical refuges.…”

Section: Genetic Variation and Phylogeographic Patternmentioning

confidence: 99%

“…Then following the alternative phylogenetic/evolutionary species taxonomy of the Mexican avifauna, Navarro-Sigüenza and Peterson (2004) proposed A. r. graysoni as an independent evolutionary species, which is morphologically distinct in size and coloration from the rest of the subspecies within A. rutila. The proposal of elevating this taxon to species level has been discussed recently (de Silva et al 2020). The destruction of native habitat, the introduction of exotic species, and reduced population sizes increase the vulnerability of birds on the Pacific Islands of Mexico and must be immediately addressed in conservation policies (Hahn et al 2012;de Silva et al 2020).…”

Section: Implications For Taxonomymentioning

confidence: 99%

“…The proposal of elevating this taxon to species level has been discussed recently (de Silva et al 2020). The destruction of native habitat, the introduction of exotic species, and reduced population sizes increase the vulnerability of birds on the Pacific Islands of Mexico and must be immediately addressed in conservation policies (Hahn et al 2012;de Silva et al 2020).…”

Section: Implications For Taxonomymentioning

confidence: 99%

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Phylogeography and morphometric variation in the Cinnamon Hummingbird complex: Amazilia rutila (Aves: Trochilidae)

et al. 2021

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Background The Mesoamerican dominion is a biogeographic area of great interest due to its complex topography and distinctive climatic history. This area has a large diversity of habitats, including tropical deciduous forests, which house a large number of endemic species. Here, we assess phylogeographic pattern, genetic and morphometric variation in the Cinnamon Hummingbird complex Amazilia rutila, which prefers habitats in this region. This resident species is distributed along the Pacific coast from Sinaloa—including the Tres Marías Islands in Mexico to Costa Rica, and from the coastal plain of the Yucatán Peninsula of Mexico south to Belize. Methods We obtained genetic data from 85 samples of A. rutila, using 4 different molecular markers (mtDNA: ND2, COI; nDNA: ODC, MUSK) on which we performed analyses of population structure (median-joining network, STRUCTURE, FST, AMOVA), Bayesian and Maximum Likelihood phylogenetic analyses, and divergence time estimates. In order to evaluate the historic suitability of environmental conditions, we constructed projection models using past scenarios (Pleistocene periods), and conducted Bayesian Skyline Plots (BSP) to visualize changes in population sizes over time. To analyze morphometric variation, we took measurements of 5 morphological traits from 210 study skins. We tested for differences between sexes, differences among geographic groups (defined based on genetic results), and used PCA to examine the variation in multivariate space. Results Using mtDNA, we recovered four main geographic groups: the Pacific coast, the Tres Marías Islands, the Chiapas region, and the Yucatán Peninsula together with Central America. These same groups were recovered by the phylogenetic results based on the multilocus dataset. Demography based on BSP results showed constant population size over time throughout the A. rutila complex and within each geographic group. Ecological niche model projections onto past scenarios revealed no drastic changes in suitable conditions, but revealed some possible refuges. Morphometric results showed minor sexual dimorphism in this species and statistically significant differences between geographic groups. The Tres Marías Islands population was the most differentiated, having larger body size than the remaining groups. Conclusions The best supported evolutionary hypothesis of diversification within this group corresponds to geographic isolation (limited gene flow), differences in current environmental conditions, and historical habitat fragmentation promoted by past events (Pleistocene refugia). Four well-defined clades comprise the A. rutila complex, and we assess the importance of a taxonomic reevaluation. Our data suggest that both of A. r. graysoni (Tres Marías Islands) and A. r. rutila (Pacific coast) should be considered full species. The other two strongly supported clades are: (a) the Chiapas group (southern Mexico), and (b) the populations from Yucatán Peninsula and Central America. These clades belong to the corallirostris taxon, which needs to be split and properly named.

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Section: Genetic Variation and Phylogeographic Patternmentioning

confidence: 99%

Section: Implications For Taxonomymentioning

confidence: 99%

Section: Implications For Taxonomymentioning

confidence: 99%

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Phylogeography and morphometric variation in the Cinnamon Hummingbird complex: Amazilia rutila (Aves: Trochilidae)

et al. 2021

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“…Four subspecies are recognized on the basis of geographic variation in size and plumage colour (Dickinson & Remsen, 2013; Gill et al, 2020; Friedmann et al, 1950; Schuchmann, 1999; Weller, 1999): (1) A. r. diluta Van Rossem, 1938 from W Mexico (Sinaloa and Nayarit), sometimes considered a synonym of A. r. rutila (Friedmann et al, 1950; Van Rossem, 1938); (2) A. r. rutila (DeLattre, 1843) on the Pacific slope of Mexico, from Jalisco to Oaxaca, and south to Chiapas and the Yucatán Peninsula south to the arid valleys of interior Guatemala to NW Costa Rica; (3) A. r. graysoni Lawrence, 1866 off W Mexico on Tres Marías Islands; proposed to be elevated to species Amazilia graysoni (Gómez de Silva et al, 2020; Vázquez-López et al, 2021); and (4) A. r. corallirostris (Bourcier & Mulsant, 1846) SE Mexico on the Pacific slope in southern Chiapas, Mexico, south through western Guatemala to the Lempa River, El Salvador (Friedmann et al, 1950); or includes the populations from the Yucatán Peninsula south to Costa Rica, usually attributed to nominate rutila (Weller, 1999). Amazilia rutila graysoni of Tres Marías Islands are darker (more bronzy above and duskier below) and larger than mainland birds (Howell & Webb, 1995; Vázquez-López et al, 2021), A. r. diluta is similar to A. r. rutila but coloration below is paler and more pinkish cinnamon and upperparts slightly more golden bronze (less greenish), whereas A. r. corallirostris birds have darker rufous coloration underparts with chin more conspicuously spotted white (Howell & Webb, 1995; Schuchmann, 1999; Van Rossem, 1938).…”

Section: Methodsmentioning

confidence: 99%

Genetic and Ecological Divergence of Cinnamon Hummingbird Amazilia rutila (Aves: Trochilidae) Continental Populations Separated by Geographical and Environmental Barriers

González-Rodríguez,

Vásquez-Aguilar,

Ornelas

2023

Tropical Conservation Science

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Background and Research Aims: Historical geological events and climatic changes have played important roles in shaping population differentiation and distribution within species. Amazilia rutila (Trochilidae) is a widespread hummingbird species in the tropical dry forest along the Pacific slope and the Yucatán Peninsula in Mexico. Methods: We used mitochondrial DNA sequence, ecological niche modelling and niche divergence tests to determine the effects of major geographic barriers and environmental variability on genetic and niche divergence of A. rutila continental populations. Results: Our results revealed three genetic groups without haplotype sharing corresponding to the distribution of individuals/populations from the Pacific slope W of the Isthmus of Tehuantepec (PAC), in Oaxaca and Chiapas E of the Isthmus of Tehuantepec (CHIS_OAX) and those from the Yucatán Peninsula and Guatemala (YUC). Values of neutrality tests suggest past demographic expansion without effective population size changes over time, and the time since the demographic expansion ranged between 39.4 and 84.45 ka BP. Each genetic group differed in their position in environmental space, with low-to-very limited overlap in the fundamental climatic niche dimensions of all groups analyzed, particularly between YUC and PAC. Analysis of climate differentiation and ecological niche comparisons showed that the environmental space occupied by these mtDNA groups is similar but not identical. Conclusion: We conclude that the genetic differentiation of A. rutila is consistent with a model of population isolation by geographical barriers and environmental differences. Inferences about the consequences of past demographic expansion and isolation underlying intraspecific evolutionary relationships await further study. Implications for Conservation: Our findings highlight the importance of preserving evolutionary significant units of this widespread hummingbird species. Conservation actions must consider intrinsic requirements of evolutionarily distinct populations and the environmental drivers that shape their distributions, maximizing preservation of intraspecific genetic variability and monitoring changes in genetic diversity.

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“…all are the points for collecting a pigeon [17][21]- [23]. In addition, need to know their weight, leg feather, number of rectrices, rump width, and position of wing [24]- [26]. remedic values like depression, muscle pain, thyroid problems, skin problems, hair loss, nail problems, lower immunity and this meat is enriched with more zinc, phosphorus, iron, sodium, selenium, and copper.…”

Section: Characteristics Of Purebredsmentioning

confidence: 99%

Limitations in Pigeon Keeping: A Review

Kabir¹

2021

J. Multidiscip. Appl. Nat. Sci.

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Pigeons are showing remarkable progress with more profit. This sector has many potential markets in the country. After visiting some pigeon houses, many limitations have been come out. Many rearers collect pigeons based on only physical appearance, and in the long run, they cannot get pure offspring. King pigeon is considered a table breed in the world but in Bangladesh rearers keep them as a common fancy item. Pigeons do not get their nutritious food from the owners. Result suggests that many rare pigeons are caught by predators and due to unwanted dirt in those lofts birds are affected by many diseases. Some remarkable farms are showing quality environment in their lofts and getting desirable profit.

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Are some of the birds endemic to the Tres Marías Islands (Mexico) species?

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 5 publications

References 44 publications

Phylogeography and morphometric variation in the Cinnamon Hummingbird complex: Amazilia rutila (Aves: Trochilidae)

Phylogeography and morphometric variation in the Cinnamon Hummingbird complex: Amazilia rutila (Aves: Trochilidae)

Genetic and Ecological Divergence of Cinnamon Hummingbird Amazilia rutila (Aves: Trochilidae) Continental Populations Separated by Geographical and Environmental Barriers

Limitations in Pigeon Keeping: A Review

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