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Jiang X, Liang W, Zhang Y. Black-headed gulls are more wary of people dressed in red: a test of the concealment color hypothesis. J ETHOL 2023. [DOI: 10.1007/s10164-023-00786-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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Hsiao YT, Chen TC, Yu PH, Huang DS, Hu FR, Chuong CM, Chang FC. Connectivity between nidopallium caudolateral and visual pathways in color perception of zebra finches. Sci Rep 2020; 10:19382. [PMID: 33168854 PMCID: PMC7653952 DOI: 10.1038/s41598-020-76542-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 10/29/2020] [Indexed: 11/24/2022] Open
Abstract
Researchers demonstrated an elegant ability for red discrimination in zebra finches. It is interested to understand whether red activates exhibit much stronger response than other colors in neural network levels. To reveal the question, local field potentials (LFPs) was recorded and analyzed in two visual pathways, the thalamofugal and the tectofugal pathways, of zebra finches. Human studies demonstrate visual associated telencephalons communicate with higher order brain areas such as prefrontal cortex. The present study determined whether a comparable transmission occurs in zebra finches. Telencephalic regions of the thalamofugal (the visual Wulst) and the tectofugal pathway (the entopallium) with their higher order telencephalon, nidopallium caudolateral (NCL) were simultaneously recorded. LFPs of relay nuclei (the nucleus rotundus, ROT) of tectofugal pathway were also acquired. We demonstrated that LFP powers in the tectofugal pathway were higher than those in the thalamofugal pathway when illuminating blue lights. In addition, the LFP synchronization was stronger between the entopallium and NCL. LFPs also revealed a higher Granger causality from the direction of entopallium to NCL and from ROT to entopallium. These results suggest that zebra finches' tectofugal pathway predominately processing color information from ROT to NCL, relayed by entopallium, and blue could trigger the strongest response.
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Affiliation(s)
- Yi-Tse Hsiao
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Ta-Ching Chen
- Department of Ophthalmology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Pin-Huan Yu
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Ding-Siang Huang
- Department of Ophthalmology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Fung-Rong Hu
- Department of Ophthalmology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Cheng-Ming Chuong
- Department of Pathology, University of Southern California, Los Angeles, CA, USA
| | - Fang-Chia Chang
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan.
- Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Graduate Institute of Acupuncture Science, College of Chinese Medicine, China Medical University, Taichung, Taiwan.
- Department of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
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Zvereva EL, Castagneyrol B, Cornelissen T, Forsman A, Hernández‐Agüero JA, Klemola T, Paolucci L, Polo V, Salinas N, Theron KJ, Xu G, Zverev V, Kozlov MV. Opposite latitudinal patterns for bird and arthropod predation revealed in experiments with differently colored artificial prey. Ecol Evol 2019; 9:14273-14285. [PMID: 31938518 PMCID: PMC6953658 DOI: 10.1002/ece3.5862] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/18/2019] [Accepted: 11/03/2019] [Indexed: 11/20/2022] Open
Abstract
The strength of biotic interactions is generally thought to increase toward the equator, but support for this hypothesis is contradictory. We explored whether predator attacks on artificial prey of eight different colors vary among climates and whether this variation affects the detection of latitudinal patterns in predation. Bird attack rates negatively correlated with model luminance in cold and temperate environments, but not in tropical environments. Bird predation on black and on white (extremes in luminance) models demonstrated different latitudinal patterns, presumably due to differences in prey conspicuousness between habitats with different light regimes. When attacks on models of all colors were combined, arthropod predation decreased, whereas bird predation increased with increasing latitude. We conclude that selection for prey coloration may vary geographically and according to predator identity, and that the importance of different predators may show contrasting patterns, thus weakening the overall latitudinal trend in top-down control of herbivorous insects.
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Affiliation(s)
| | | | - Tatiana Cornelissen
- Departamento de Genética, Ecologia e EvoluçãoUniversidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Anders Forsman
- Department of Biology and Environmental ScienceLinnaeus UniversityKalmarSweden
| | | | - Tero Klemola
- Department of BiologyUniversity of TurkuTurkuFinland
| | - Lucas Paolucci
- Setor de Ecologia e ConservaçãoDepartamento de BiologiaUniversidade Federal de LavrasLavrasBrazil
- Instituto de Pesquisa Ambiental da AmazôniaBrasíliaBrazil
- Departamento de Biologia GeralUniversidade Federal de Viçosa, Campus UniversitárioViçosaBrazil
| | - Vicente Polo
- Department of Biology and Geology, Physics and Inorganic ChemistryUniversity Rey Juan CarlosMóstolesSpain
| | - Norma Salinas
- Instituto de Ciencias de la Naturaleza, Territorio y Energías RenovablesPontificia Universidad Católica del PerúLimaPeru
| | - Kasselman Jurie Theron
- Department of Conservation Ecology and EntomologyStellenbosch UniversityMatielandSouth Africa
| | - Guorui Xu
- CAS Key Laboratory of Tropical Forest EcologyXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglunChina
| | - Vitali Zverev
- Department of BiologyUniversity of TurkuTurkuFinland
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Nakao M, Sasaki M, Waki T, Iwaki T, Morii Y, Yanagida K, Watanabe M, Tsuchitani Y, Saito T, Asakawa M. Distribution records of three species of Leucochloridium (Trematoda: Leucochloridiidae) in Japan, with comments on their microtaxonomy and ecology. Parasitol Int 2019; 72:101936. [PMID: 31153919 DOI: 10.1016/j.parint.2019.101936] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/29/2019] [Accepted: 05/29/2019] [Indexed: 11/18/2022]
Abstract
Insectivorous birds serve as definitive hosts for trematodes of the genus Leucochloridium. The parasites exclusively use amber snails of the family Succineidae as intermediate hosts. A pulsating and colorful display of the larval broodsac in the snail's eyestalk seems to be a caterpillar mimic for attracting birds. A colored design of the broodsac is very useful for parasite identification. In Japan, characteristic broodsacs from amber snails have been recorded from 1980's, but their taxonomic discrimination from Asian, European, and North American species has not been achieved. In this study, old scientific records, sighting information on broodsacs from the general public, and direct molecular evidence by DNA barcoding clearly showed that at least three species of Leucochloridium are distributed in Japan. A vertical-striped broodsac found from Succinea sp. in Okinawa, the subtropical island of Japan, were treated as Leucochloridium sp., but being almost identical to that of Leucochloridium passeri in neighboring Taiwan. The European species of Leucochloridium perturbatum and Leucochloridium paradoxum were frequently detected from Succinea lauta in Hokkaido, the northernmost island of Japan. The former species was common in inland areas of Hokkaido, whereas the latter species was frequently seen in the coastal areas. A possible explanation for the parasite distribution pattern is that principal definitive hosts (migratory or resident birds) differ in each parasite. The conspecificity of Leucochloridium variae in North America and L. perturbatum in Europe and the Far East is also discussed.
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Affiliation(s)
- Minoru Nakao
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan.
| | - Mizuki Sasaki
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Tsukasa Waki
- Faculty of Science, Toho University, Funabashi, Chiba 274-8510, Japan
| | - Takashi Iwaki
- Meguro Parasitological Museum, Meguro-ku, Tokyo 153-0064, Japan
| | - Yuta Morii
- Laboratory of Forest Ecosystem Management, Department of Forest Science, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8569, Japan
| | - Kazumi Yanagida
- Asahikawa Branch, the Wild Bird Society of Japan, Asahikawa, Hokkaido 070-8061, Japan
| | | | - Yoshikazu Tsuchitani
- Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Takumi Saito
- Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Mitsuhiko Asakawa
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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