Results 71 to 80 of about 26,908 (209)
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The highly threatened African cycad genus Encephalartos faces severe threats such as habitat loss and poaching. In addition, the lack of sexual recruitment due to the absence of pollinators (pollinator collapse) has emerged as another major threat.
Paul D. Janse van Rensburg +2 more
wiley +1 more source
Parasite, 2023 Owing to the largely unexplored diversity of metazoan parasites, their speciation mechanisms and the circumstances under which such speciation occurs – in allopatry or sympatry – remain vastly understudied.
Moons Tanisha +6 more
doaj +1 more source
Computer simulations on the sympatric speciation modes for the Midas cichlid species complex [PDF]
, 2007 Cichlid fishes are one of the best model system for the study of evolution of the species. Inspired by them, in this paper we simulated the splitting of a single species into two separate ones via random mutations, with both populations living together ...
Jorge de Sá +2 more
core +2 more sources
Hox Gene Variation Drives Morphological Specialization of Humpback Grouper Cromileptes altivelis
Integrative Zoology, EarlyView.Cromileptes altivelis exhibits a distinctive “sunken head and humpback” morphology, formed through cranial remodeling. Genetic analyses identified unique amino acid variants in Hoxa7a and Hoxa10b, with functional tests confirming their role in enhancing osteoblast activity and driving cranial remodeling.
Xiaoying Cao +4 more
wiley +1 more source
Integrative Zoology, EarlyView.Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley +1 more source
Frontiers in Genetics, 2018 As one of the hotspot regions for sympatric speciation studies, Evolution Canyon (EC) became an ideal place for its high level of microclimatic divergence interslopes. In this study, to highlight the genetic mechanisms of sympatric speciation, phenotypic
Chaoju Qian +12 more
doaj +1 more source
Divergence in sex steroid hormone signaling between sympatric species of Japanese threespine stickleback. [PDF]
PLoS ONE, 2011 Sex steroids mediate the expression of sexually dimorphic or sex-specific traits that are important both for mate choice within species and for behavioral isolation between species.
Jun Kitano +6 more
doaj +1 more source
Phylogenetic and phenotypic divergence of an insular radiation of birds [PDF]
, 2010 Evolutionary divergence of lineages is one of the key mechanisms underpinning large scale patterns in biogeography and biodiversity. Island systems have been highly influential in shaping theories of evolutionary diversification and here I use the ...
Black, Richard Anthony +1 more
core +1 more source
Sympatric Speciation in the Genomic Era [PDF]
Trends in Ecology & Evolution, 2018 Sympatric speciation has been of key interest to biologists investigating how natural and sexual selection drive speciation without the confounding variable of geographic isolation. The advent of the genomic era has provided a more nuanced and quantitative understanding of the different and often complex modes of speciation by which sympatric sister ...
openaire +2 more sources
adapt3: Adaptive dynamics and community projection in the R programming language
Methods in Ecology and Evolution, EarlyView.Abstract Ecologists typically use matrix projection to understand population dynamics. Recently, they have applied matrix projection to analyse communities and evolutionary dynamics. Particularly, matrix community models (MCMs) provide a reductionist, demographic approach to the study of ecological interactions, while adaptive dynamics assess the ...
Richard P. Shefferson
wiley +1 more source