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Geospiza fortis

ABSTRACT: The medium ground finch of the Galapagos Islands

PROVIDER: PRJNA157917 | ENA |

REPOSITORIES: ENA

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Dataset's files

Source:

			Action	DRS
		Other
	AKZB01.dat.gz	Other
	AKZB01.fasta.gz	Fasta.gz
	AKZB01.master.dat	Other
	SRR23322100_1.fastq.gz	Fastqsanger.gz

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Geospiza fortis

Project description:Effects of Urbanization on Host Resistance to Invasive Parasites in the Galapagos Islands

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Temporally varying disruptive selection in the medium ground finch (Geospiza fortis).

Project description:Disruptive natural selection within populations exploiting different resources is considered to be a major driver of adaptive radiation and the production of biodiversity. Fitness functions, which describe the relationships between trait variation and fitness, can help to illuminate how this disruptive selection leads to population differentiation. However, a single fitness function represents only a particular selection regime over a single specified time period (often a single season or a year), and therefore might not capture longer-term dynamics. Here, we build a series of annual fitness functions that quantify the relationships between phenotype and apparent survival. These functions are based on a 9-year mark-recapture dataset of over 600 medium ground finches (Geospiza fortis) within a population bimodal for beak size. We then relate changes in the shape of these functions to climate variables. We find that disruptive selection between small and large beak morphotypes, as reported previously for 2 years, is present throughout the study period, but that the intensity of this selection varies in association with the harshness of environment. In particular, we find that disruptive selection was strongest when precipitation was high during the dry season of the previous year. Our results shed light on climatic factors associated with disruptive selection in Darwin's finches, and highlight the role of temporally varying fitness functions in modulating the extent of population differentiation.

| S-EPMC6939253 | biostudies-literature

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Project description:Geospiza fortis Genome sequencing and assembly

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Geospiza scandens

Project description:Effect of introduced parasites on the survival and microbiota of nestling cactus finches (Geospiza scandens) in the Galapagos Islands

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Soil microbial communities from the Galapagos Islands

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Nitrosomonas sp. 17 strain:17

Project description:This strain was collected from the Galapagos Islands in Ecuador.

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single nuclei RNA-seq at RA in juvenile zebra finch and owl finch F1 hybrid birds

Project description:To investigate the cellular basis of parental species bias at birdsong, we performed single nuclei RNA-seq for six zebra finch and owl finch F1 hybrid juvenile birds.

2023-11-04 | GSE217341 | GEO

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