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8 results for “heterospecific mating”
Data from: Heterospecific mating interactions as an interface between ecology and evolution
<p>Reproductive interference (costly interspecific sexual interactions) are well-understood to promote divergence in mating-relevant traits (i.e. reproductive character displacement: RCD), but it can also reduce population growth, eventually leading to local extinction of one of the species. The ecological and evolutionary processes driven by reproductive interference can interact with each other. These interactions are likely to influence whether the outcome is co-existence or extinction, but remain little studied. In this paper, we first develop an eco-evolutionary perspective on reproductive interference by integrating ecological and evolutionary processes in a common framework. We also present a simple model to demonstrate the eco-evolutionary dynamics of reproductive interference. We then identify a number of factors that are likely to influence the relative likelihoods of extinction or RCD. We discuss particularly relevant factors by classifying them into four categories: the nature of the traits responding to selection, the mechanisms determining the expression of these traits, mechanisms of reproductive interference, and the ecological background. We highlight previously underappreciated ways in which these factors may influence the relative likelihoods of RCD and local extinction. By doing so, we also identify questions and future directions that will increase our holistic understanding of the outcomes of reproductive interference.</p>
Data from: The effects of heterospecific mating frequency on the strength of cryptic reproductive barriers
Heterospecific mating frequency is critical to hybrid zone dynamics and can directly impact the strength of reproductive barriers and patterns of introgression. The ef‐ fectiveness of post‐mating prezygotic (PMPZ) reproductive barriers, which include reduced fecundity via heterospecific matings and conspecific sperm precedence, may depend on the number, identity and order of mates. Studies of PMPZ barriers suggest that they may be important in many systems, but whether these barriers are effective at realistic heterospecific mating frequencies has not been tested. Here, we evaluate the strength of cryptic reproductive isolation in two leaf beetles (Chrysochus auratus and C. cobaltinus) in the context of a range of heterospecific mating frequen‐ cies observed in natural populations. We found both species benefited from multiple matings, but the benefits were greater in C. cobaltinus and extended to heterospecific matings. We found that PMPZ barriers greatly limited hybrid production by C. aura- tus females with moderate heterospecific mating frequencies, but that their effec‐ tiveness diminished at higher heterospecific mating frequencies. In contrast, there was no evidence for PMPZ barriers in C. cobaltinus females at any heterospecific mating frequency. We show that integrating realistic estimates of cryptic isolation with information on relative abundance and heterospecific mating frequency in the field substantially improves our understanding of the strong directional bias in F1 production previously documented in the Chrysochus hybrid zone. Our results dem‐ onstrate that heterospecific mating frequency is critical to understanding the impact of cryptic post‐copulatory barriers on hybrid zone structure and dynamics, and that future studies of such barriers should incorporate field‐relevant heterospecific mat‐ ing frequencies.
Data from: The effects of heterospecific mating frequency on the strength of cryptic reproductive barriers
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Data from: Heterospecific mating interactions as an interface between ecology and evolution
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Figure 2 in Heterospecific mating between distantly related species of stink bugs and its evolutionary implications
Figure 2. Geographic distribution, external genital morphology and phylogenetic positions (modified from Genevcius and Schwertner 2014) of Chinavia erythrocnemis (Berg) and C. obstinata (Stål). Distribution ranges were constructed using the minimum convex polygon method, and the biomes in which species occur are delimited in grey. The yellow star indicates the locality in which the natural heterospecific copula was recorded and all other individuals were collected. Scale bars in genitalia are 0.5 mm.
Figure 1 in Heterospecific mating between distantly related species of stink bugs and its evolutionary implications
Figure 1. (a) an aggregation of Chinavia spp. on Mikania micrantha Kunth; (b) wild couple during heterospecific copula [left: Chinavia obstinata (Stål) male; right: Chinavia erythrocnemis (Berg) female]; (c) heterospecific couple copulating in laboratory conditions [left: C. erythrocnemis female; right: C. obstinata male]; (d) nymphs of C. erythrocnemis from the wild couple.
Data from: Relative density and dispersion pattern of two southern African Asteraceae affect fecundity through heterospecific interference and mate availability, not pollinator visitation rate
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Postmating transcriptional changes in reproductive tracts of con- and heterospecifically-mated Drosophila mojavensis females
GEO Series GSE27454. Drosophila mojavensis. 14 samples. Type: Expression profiling by array.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.