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Journal articles on the topic 'Incipient species'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

MARNGAR, IBANSIEWDOR, BATNGENLANG MAWLONG, and YUMNAM LOKESHWOR. "Garra dohjei, a new species of labeonine fish (Teleostei: Cyprinidae) from Meghalaya, India." Zootaxa 5507, no. 3 (2024): 478–88. http://dx.doi.org/10.11646/zootaxa.5507.3.6.

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Garra dohjei, a new labeonine fish with transverse lobe and incipient proboscis is described from the Ñiangdai, a tributary of the Brahmaputra River, Meghalaya, India. The new species is distinguished from its congeners with transverse lobe and incipient proboscis, in having a well-developed transverse lobe with around 9–12 minute tubercles, deep transverse groove between transverse lobe and incipient proboscis, black spot immediately anterior to upper angle of gill opening, 5–6 dark black stripes on caudal peduncle, 33–35 lateral line scales, 9–10 predorsal scales, 16–circumpeduncular scales,

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2

Oláh, János, Trond Andersen, Stoyan Beshkov, et al. "Unified phylogenetic species concept: taking subspecies and race out of science: postmodern theory applied to the Potamophylax cingulatus group (Trichoptera, Limnephilidae)." Opuscula Zoologica (Budapest) 49, no. 1 (2018): 33–70. https://doi.org/10.18348/opzool.2018.1.33.

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The subspecies of the biological species concept with incomplete reproductive isolation versus the incipient sibling species of the phylogenetic species concept with permeable reproductive barrier are still applied side by side in the everyday practice of taxonomy. Both terms refer to the same organisms diverged mostly in allopatry with various stages of repro-ductive isolation. Question remained: how human ranks these entities organised by nature? The reliable ranking of living hierarchies is retarded and even obscured by the suppressed state of taxonomy. Disappointing scenario: the science o

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3

Stump, Aram D., Jennifer A. Shoener, Carlo Costantini, N'Fale Sagnon, and Nora J. Besansky. "Sex-Linked Differentiation Between Incipient Species ofAnopheles gambiae." Genetics 169, no. 3 (2005): 1509–19. http://dx.doi.org/10.1534/genetics.104.035303.

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4

Oláh, János, Gilles Vinçon, and Gennaro Coppa. "On the Trichoptera of Italy with delineation of incipient sibling species." Opuscula Zoologica (Budapest) 52, no. 1 (2021): 03–67. https://doi.org/10.18348/opzool.2021.1.3.

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Lumpers, focussing between gross and molecular morphologies and neglecting fine phenomics, highly underesti-mate biodiversity. The outdated lumper’s attitude fixed in the Distribution Atlas of European Trichoptera (Neu et al. 2018) is revisited and some theoretical background of why and how to delineate phylogenetic-retigenetic incipient species is outlined very briefly. We expose the adverse effect of lumpers in order to improve by fine phenomics the detection of the fine structure of the local genetic resources, the most valuable and most specific living components, the endemics of the

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5

Oláh, János. "Is the genus Potamophylax (Trichoptera: Limnephilidae) highly polymorphic?" Acta Entomologica Musei Nationalis Pragae 57, no. 1 (2017): 253–57. http://dx.doi.org/10.1515/aemnp-2017-0072.

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Abstract The present deprived state of taxonomy gives no appropriate resources for taxonomists to apply more sophisticated phenomic tools and to carry out more appropriate population sampling. Without fine structure analysis of large population samples there is no hope to discover speciation traits and there is no chance to delineate young incipient sibling species with subtle but stable shape divergences. Phylogenetic species complexes of these incipient species are frequently mistaken with species polymorphism. However, historical polymorphism is a sympatric phenomenon based on discontinuous

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6

CASSONE, BRYAN J., KARINE MOULINE, MATTHEW W. HAHN, et al. "Differential gene expression in incipient species of Anopheles gambiae." Molecular Ecology 17, no. 10 (2008): 2491–504. http://dx.doi.org/10.1111/j.1365-294x.2008.03774.x.

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7

Wake, D. B. "Incipient species formation in salamanders of the Ensatina complex." Proceedings of the National Academy of Sciences 94, no. 15 (1997): 7761–67. http://dx.doi.org/10.1073/pnas.94.15.7761.

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8

Dabiré, Roch, Simon Sawadogo, Abdoulaye Diabaté, et al. "Mechanisms of reproductive isolation between incipient species in the Anopheles gambiae species complex." Malaria Journal 13, Suppl 1 (2014): O4. http://dx.doi.org/10.1186/1475-2875-13-s1-o4.

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9

Michel, A. P., W. M. Guelbeogo, O. Grushko, et al. "Molecular differentiation between chromosomally defined incipient species of Anopheles funestus." Insect Molecular Biology 14, no. 4 (2005): 375–87. http://dx.doi.org/10.1111/j.1365-2583.2005.00568.x.

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10

Chałasiński, Grzegorz, Jacek Klos, Slawomir M. Cybulski, and Małgorzata M. Szczęśniak. "From Intermolecular Interactions to Incipient Chemical Bond." Collection of Czechoslovak Chemical Communications 63, no. 9 (1998): 1473–84. http://dx.doi.org/10.1135/cccc19981473.

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The complexes of a rare gas atom (RG) and a number of open-shell molecules are discussed in the context of the bond character, structural and dynamical properties. The potential energy surfaces of a variety of complexes have been obtained using the combination of highly correlated supermolecular approach and the symmetry-adapted perturbation theory. Complexes of Σ-state species, O2 and NH, display typical non-covalent interactions, similar to closed-shell systems. Complexes of Π-state species are represented by pairs of adiabatic potentials A' and A'' due to removal of degeneracy through the i

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11

Vo, Binh T. T. "Identification of the tolerant capacity to aquatic environment factors (temperature, pH and dissolved oxygen) of Asian bumblebee catfish (Pseudomystus siamensis Regan, 1913)." Journal of Agriculture and Development 18, no. 5 (2019): 43–51. http://dx.doi.org/10.52997/jad.6.05.2019.

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Asian bumblebee catfish (Pseudomystus siamensis) belongs to Bagridae family and is an economic value ornamental species. However, biological characteristics of this fish species have been rarely reported in the literature. A study to identify tolerant capacity to aquatic environment factors (incipient lethal temperature (ILT) and incipient lethal pH (ILpH) and oxygen threshold) of Asian bumblebee catfish at three developmental stages namely embryo, hatchling and ten-day post hatching (dph) was carried out from July 2018 to January 2019 at the Experimental Farm for Aquaculture of Fisheries Facu

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12

Korovchinsky, Nikolai M. "Redescription of Limnosida frontosa Sars, 1862 (Crustacea: Cladocera: Sididae), with evidence of possible incipient species differentiation." Zootaxa 3764, no. 1 (2014): 61–80. https://doi.org/10.11646/zootaxa.3764.1.4.

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Korovchinsky, Nikolai M. (2014): Redescription of Limnosida frontosa Sars, 1862 (Crustacea: Cladocera: Sididae), with evidence of possible incipient species differentiation. Zootaxa 3764 (1): 61-80, DOI: 10.11646/zootaxa.3764.1.4

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13

Xue, Jifeng, Shigeshi Fuchida, Sana Ishida, and Chiharu Tokoro. "Insight on Exogenous Calcium/Magnesium in Weakening Pyrite Floatability with Prolonged Pre-Oxidation: Localized and Concomitant Secondary Minerals and Their Depression Characteristics." Minerals 12, no. 2 (2022): 115. http://dx.doi.org/10.3390/min12020115.

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In this study, we investigated the localized and concomitant precipitation of calcium (Ca)/magnesium (Mg)-bearing species and iron oxides/oxyhydroxides, and their depression characteristics to the pyrite floatability in flotation process at pH 9 and pH 10.5 with prolonged pre-oxidation. Contrary to the depression characteristics at pH 9, the incipient (within aeration times of 30 min) depression of pyrite floatability in Ca/Mg-bearing solutions was more obvious at pH 10.5, while the subsequent decline was only slightly when the pre-oxidation time was expanded to 120 min and 360 min. The compet

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14

Charron, Guillaume, and Christian R. Landry. "No evidence for extrinsic post-zygotic isolation in a wild Saccharomyces yeast system." Biology Letters 13, no. 6 (2017): 20170197. http://dx.doi.org/10.1098/rsbl.2017.0197.

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Although microorganisms account for the largest fraction of Earth's biodiversity, we know little about how their reproductive barriers evolve. Sexual microorganisms such as Saccharomyces yeasts rapidly develop strong intrinsic post-zygotic isolation, but the role of extrinsic isolation in the early speciation process remains to be investigated. We measured the growth of F 1 hybrids between two incipient species of Saccharomyces paradoxus to assess the presence of extrinsic post-zygotic isolation across 32 environments. More than 80% of hybrids showed either partial dominance of the best parent

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15

Oláh, János, Gilles Vinçon, and Gennaro Coppa. "On the Trichoptera of Italy with delineation of incipient sibling species." Opuscula Zoologica 52, no. 1 (2021): 3–67. http://dx.doi.org/10.18348/opzool.2021.1.3.

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Abstract:

Lumpers, focussing between gross and molecular morphologies and neglecting fine phenomics, highly underestimate biodiversity. The outdated lumper’s attitude fixed in the Distribution Atlas of European Trichoptera (Neu et al. 2018) is revisited and some theoretical background of why and how to delineate phylogenetic-retigenetic incipient species is outlined very briefly. We expose the adverse effect of lumpers in order to improve by fine phenomics the detection of the fine structure of the local genetic resources, the most valuable and most specific living components, the endemics of the partic

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16

Dujardin, JP, F. Le Pont, and E. Martinez. "Quantitative morphological evidence for incipient species within Lutzomyia quinquefer (Diptera: Psychodidae)." Memórias do Instituto Oswaldo Cruz 94, no. 6 (1999): 829–36. http://dx.doi.org/10.1590/s0074-02761999000600022.

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17

Castro, Jonathan P., Maurício O. Moura, Orlando Moreira-Filho, et al. "Evidence of incipient speciation in Astyanax scabripinnis species complex (Teleostei: Characidae)." Neotropical Ichthyology 12, no. 2 (2014): 429–38. http://dx.doi.org/10.1590/1982-0224-20130222.

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Two populations of the Astyanax scabripinniscomplex, isolated by a waterfall with over 100 meters depth and inhabiting different altitudes of the same river (1850 m a.s.l. and 662 m a.s.l.) were compared in reproductive data, geometric morphometry, tooth morphology, anal-fin rays counts, and karyotype, in order to test the hypothesis of speciation between the two populations. The results in the geometric morphometry analysis showed differences between the populations. Discriminant function analysis (DFA) and canonical variance analysis revealed sexual dimorphism. Secondary sexual characters, s

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18

Yoshida, Kohta, Takashi Makino, Katsushi Yamaguchi, et al. "Sex Chromosome Turnover Contributes to Genomic Divergence between Incipient Stickleback Species." PLoS Genetics 10, no. 3 (2014): e1004223. http://dx.doi.org/10.1371/journal.pgen.1004223.

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19

BRAMBILLA, M., O. JANNI, F. GUIDALI, and A. SORACE. "Song perception among incipient species as a mechanism for reproductive isolation." Journal of Evolutionary Biology 21, no. 3 (2008): 651–57. http://dx.doi.org/10.1111/j.1420-9101.2008.01523.x.

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20

Charron, Guillaume, Jean-Baptiste Leducq, and Christian R. Landry. "Chromosomal variation segregates within incipient species and correlates with reproductive isolation." Molecular Ecology 23, no. 17 (2014): 4362–72. http://dx.doi.org/10.1111/mec.12864.

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21

Pettengill, James B., and David A. Moeller. "TEMPO AND MODE OF MATING SYSTEM EVOLUTION BETWEEN INCIPIENT CLARKIA SPECIES." Evolution 66, no. 4 (2011): 1210–25. http://dx.doi.org/10.1111/j.1558-5646.2011.01521.x.

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22

Uden, Daniel R., Craig R. Allen, David G. Angeler, Lucía Corral, and Kent A. Fricke. "Adaptive invasive species distribution models: a framework for modeling incipient invasions." Biological Invasions 17, no. 10 (2015): 2831–50. http://dx.doi.org/10.1007/s10530-015-0914-3.

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23

Merrill, Richard M., Audrey Chia, and Nicola J. Nadeau. "Divergent warning patterns contribute to assortative mating between incipient Heliconius species." Ecology and Evolution 4, no. 7 (2014): 911–17. http://dx.doi.org/10.1002/ece3.996.

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24

Castro, Jonathan P., Maurício O. Moura, Orlando Moreira-Filho, et al. "Evidence of incipient speciation in Astyanax scabripinnis species complex (Teleostei: Characidae)." Neotropical Ichthyology 12, no. 2 (2014): 429–38. https://doi.org/10.1590/1982-0224-20130222.

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Castro, Jonathan P., Moura, Maurício O., Moreira-Filho, Orlando, Shibatta, Oscar A., Santos, Mateus H., Nogaroto, Viviane, Vicari, Marcelo R., de Almeida, Mara C., Artoni, Roberto F. (2014): Evidence of incipient speciation in Astyanax scabripinnis species complex (Teleostei: Characidae). Neotropical Ichthyology 12 (2): 429-438, DOI: 10.1590/1982-0224-20130222, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000200429&lng=en&tlng=en

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25

Uy, J. Albert C., Robert G. Moyle, and Christopher E. Filardi. "PLUMAGE AND SONG DIFFERENCES MEDIATE SPECIES RECOGNITION BETWEEN INCIPIENT FLYCATCHER SPECIES OF THE SOLOMON ISLANDS." Evolution 63, no. 1 (2009): 153–64. http://dx.doi.org/10.1111/j.1558-5646.2008.00530.x.

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26

Shelton, Christen D., P. Martin Sander, Koen Stein, and Herman Winkelhorst. "Long bone histology indicates sympatric species of Dimetrodon (Lower Permian, Sphenacodontidae)." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 103, no. 3-4 (2012): 217–36. http://dx.doi.org/10.1017/s175569101300025x.

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ABSTRACTThe Briar Creek Bonebed (Artinskian, Nocona Formation) in Archer County is one of the richest sources of Dimetrodon bones in the Lower Permian of Texas, USA. Based on size, a small (D. natalis), an intermediate (D. booneorum), and a large species (D. limbatus) have been described from this locality. It has been proposed that these traditionally recognised species represent an ontogenetic series of only one species. However, the ontogenetic series hypothesis is inconsistent with the late ontogenetic state of the small bones, as suggested by their osteology and degree of ossification. Hi

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27

Zimta, Alina-Andreea, Olafur Eysteinn Sigurjonsson, Diana Gulei, and Ciprian Tomuleasa. "The Malignant Role of Exosomes as Nanocarriers of Rare RNA Species." International Journal of Molecular Sciences 21, no. 16 (2020): 5866. http://dx.doi.org/10.3390/ijms21165866.

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Nowadays, advancements in the oncology sector regarding diagnosis methods allow us to specifically detect an increased number of cancer patients, some of them in incipient stages. However, one of the main issues consists of the invasive character of most of the diagnosis protocols or complex medical procedures associated with it, that impedes part of the patients to undergo routine checkups. Therefore, in order to increase the number of cancer cases diagnosed in incipient stages, other minimally invasive alternatives must be considered. The current review paper presents the value of rare RNA s

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28

de Freitas, Thales R. O., and Simone S. F. Ximenes. "Hybrid zone between Ctenomys lami and C. minutus: habitat alterations influence the evolutionary history of two burrowing rodent species of southern Brazil." Therya 16, no. 1 (2025): 77–89. https://doi.org/10.12933/therya-25-6141.

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Hybridization events provide insights into central questions in evolutionary biology regarding the role of reproductive isolation in speciation mechanisms. Because of that, there is increasing interest in understanding the patterns and processes underlying hybrid zones. The sister species Ctenomys minutus (2n = 48a) and Ctenomys lami (2n = 56) are burrowing rodents endemic to the southern Brazilian coastal plain and collectively exhibit high karyotype polymorphism. We analyzed chromosomal and mitochondrial DNA (mtDNA) variation to assess their evolutionary history and confirm and characterize

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29

MacLeod, Amy, Ariel Rodríguez, Miguel Vences, et al. "Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana." Proceedings of the Royal Society B: Biological Sciences 282, no. 1809 (2015): 20150425. http://dx.doi.org/10.1098/rspb.2015.0425.

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The effects of the direct interaction between hybridization and speciation—two major contrasting evolutionary processes—are poorly understood. We present here the evolutionary history of the Galápagos marine iguana ( Amblyrhynchus cristatus ) and reveal a case of incipient within-island speciation, which is paralleled by between-island hybridization. In-depth genome-wide analyses suggest that Amblyrhynchus diverged from its sister group, the Galápagos land iguanas, around 4.5 million years ago (Ma), but divergence among extant populations is exceedingly young (less than 50 000 years). Despite

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30

Briones, Carolina, José J. Nuñez, Montse Pérez, et al. "Linking Acrosome Size and Genetic Divergence in an Inter-Oceanic Mussel from the Pacific and Atlantic Coasts: A Case of Incipient Speciation?" Animals 14, no. 5 (2024): 674. http://dx.doi.org/10.3390/ani14050674.

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In recent years, advances in analyses of the sperm morphology and genetics of Perumytilus purpuratus have allowed to two evolutionary scenarios for this mussel to be suggested: (1) the scenario of cryptic species and (2) the scenario of incipient or in progress speciation. For a better understanding of the evolutionary history of P. purpuratus, we performed extensive sampling along a latitudinal gradient of ca. 7180 km of coastline—from the Southern Pacific Ocean to the Atlantic Ocean—and we delved deeper into the sperm morphology of P. purpuratus, exploring its association with the phylogeny

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31

Hasnat, Mohammad A., Mohammed M. Rahman, Iqbal A. Siddiquey, et al. "Aggregated Pt–Pd nanoparticles on Nafion membrane for impulsive decomposition of hydrogen peroxide." RSC Advances 5, no. 57 (2015): 46295–300. http://dx.doi.org/10.1039/c5ra05620a.

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A Pd site initiates hydrogen peroxide decomposition by adsorbing one ‘O’ followed by splitting of O–H bond. Meanwhile, a Pt site finally completes the decomposition process by enabling desorption of the incipient O<sub>2</sub> species.

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32

Manzi, Giorgio. "Before the Emergence of Homo sapiens: Overview on the Early-to-Middle Pleistocene Fossil Record (with a Proposal about Homo heidelbergensis at the subspecific level)." International Journal of Evolutionary Biology 2011 (May 4, 2011): 1–11. http://dx.doi.org/10.4061/2011/582678.

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The origin of H. sapiens has deep roots, which include two crucial nodes: (1) the emergence and diffusion of the last common ancestor of later Homo (in the Early Pleistocene) and (2) the tempo and mode of the appearance of distinct evolutionary lineages (in the Middle Pleistocene). The window between 1,000 and 500 thousand years before present appears of crucial importance, including the generation of a new and more encephalised kind of humanity, referred to by many authors as H. heidelbergensis. This species greatly diversified during the Middle Pleistocene up to the formation of new variants

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33

White, Bradley J., Mara K. N. Lawniczak, Changde Cheng, et al. "Adaptive divergence between incipient species of Anopheles gambiae increases resistance to Plasmodium." Proceedings of the National Academy of Sciences 108, no. 1 (2010): 244–49. http://dx.doi.org/10.1073/pnas.1013648108.

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The African malaria mosquito Anopheles gambiae is diversifying into ecotypes known as M and S forms. This process is thought to be promoted by adaptation to different larval habitats, but its genetic underpinnings remain elusive. To identify candidate targets of divergent natural selection in M and S, we performed genomewide scanning in paired population samples from Mali, followed by resequencing and genotyping from five locations in West, Central, and East Africa. Genome scans revealed a significant peak of M-S divergence on chromosome 3L, overlapping five known or suspected immune response

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34

Lawniczak, M. K. N., S. J. Emrich, A. K. Holloway, et al. "Widespread Divergence Between Incipient Anopheles gambiae Species Revealed by Whole Genome Sequences." Science 330, no. 6003 (2010): 512–14. http://dx.doi.org/10.1126/science.1195755.

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35

BARLUENGA, MARTA, and AXEL MEYER. "The Midas cichlid species complex: incipient sympatric speciation in Nicaraguan cichlid fishes?" Molecular Ecology 13, no. 7 (2004): 2061–76. http://dx.doi.org/10.1111/j.1365-294x.2004.02211.x.

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36

DIJKSTRA, P. D., G. F. WIEGERTJES, M. FORLENZA, et al. "The role of physiology in the divergence of two incipient cichlid species." Journal of Evolutionary Biology 24, no. 12 (2011): 2639–52. http://dx.doi.org/10.1111/j.1420-9101.2011.02389.x.

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37

Schultz, T. R., D. Bekkevold, and J. J. Boomsma. "Acromyrmex insinuator new species: an incipient social parasite of fungus-growing ants." Insectes Sociaux 45, no. 4 (1998): 457–71. http://dx.doi.org/10.1007/s000400050101.

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38

Almeida, F.C., and R. DeSalle. "Genetic differentiation and adaptive evolution at reproductive loci in incipient Drosophila species." Journal of Evolutionary Biology 30 (June 5, 2017): 524Ð537. https://doi.org/10.1111/jeb.13021.

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39

Whiteley, A. R., K. N. Persaud, N. Derome, R. Montgomerie, and L. Bernatchez. "Reduced sperm performance in backcross hybrids between species pairs of whitefish (Coregonus clupeaformis)." Canadian Journal of Zoology 87, no. 7 (2009): 566–72. http://dx.doi.org/10.1139/z09-042.

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Previous work has demonstrated that genomic incompatibilities work together with ecologically divergent selection to promote and maintain reproductive isolation between incipient species (dwarf and normal) of lake whitefish ( Coregonus clupeaformis (Mitchill, 1818)). Whitefish spawn in groups with external fertilization, which creates conditions for strong sperm competition. In this study, we asked whether reduced sperm performance in hybrids from whitefish species-pair matings might contribute to postzygotic isolating mechanisms between these taxa. We examined two sperm traits, sperm swimming

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40

Yukilevich, Roman. "Female preferences between incipient species of Drosophila athabasca reveal divergent closed functions, epistasis, and segregation of veiled preference alleles." Evolution 77, no. 2 (2022): 496–508. http://dx.doi.org/10.1093/evolut/qpac055.

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Abstract Theoretical models typically assume that speciation is driven by divergence in female preference functions for secondary sexual traits. However, little is known about how these functions diverge between incipient species. This study used song playback experiments and mate choice tests to characterize female preference functions for divergent male courtship songs between two incipient species of Drosophila athabasca complex; D. athabasca (WN) and Drosophila mahican (EA). The study focused on two male song parameters: pulses per burst (PPB) and inter-pulse interval (IPI). Preference fun

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41

SHANGNINGAM, BUNGDON, LAISHRAM KOSYGIN, and BIKRAMJIT SINHA. "A new species of rheophilic cyprinid fish (Teleostei: Cyprinidae) from the Brahmaputra Basin, northeast India." Zootaxa 4695, no. 2 (2019): 148–58. http://dx.doi.org/10.11646/zootaxa.4695.2.4.

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A new species of the genus Garra is described from the Ranga River of the Brahmaputra basin, Arunachal Pradesh, northeastern India. Garra magnacavus, new species, differs from its congeners in having an incipient proboscis with a transverse lobe, 15−19 rounded large pits on the snout, weakly developed non-fleshy central callous pad, and an elongate body with 42 lateral-line and 14−16 predorsal scales.

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42

Campagna, Leonardo, Pilar Benites, Stephen C. Lougheed, et al. "Rapid phenotypic evolution during incipient speciation in a continental avian radiation." Proceedings of the Royal Society B: Biological Sciences 279, no. 1734 (2011): 1847–56. http://dx.doi.org/10.1098/rspb.2011.2170.

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Adaptive radiations have helped shape how we view animal speciation, particularly classic examples such as Darwin's finches, Hawaiian fruitflies and African Great Lakes cichlids. These ‘island’ radiations are comparatively recent, making them particularly interesting because the mechanisms that caused diversification are still in motion. Here, we identify a new case of a recent bird radiation within a continentally distributed species group; the capuchino seedeaters comprise 11 Sporophila species originally described on the basis of differences in plumage colour and pattern in adult males. We

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43

Pfaender, Jobst, Renny K. Hadiaty, Ulrich K. Schliewen, and Fabian Herder. "Rugged adaptive landscapes shape a complex, sympatric radiation." Proceedings of the Royal Society B: Biological Sciences 283, no. 1822 (2016): 20152342. http://dx.doi.org/10.1098/rspb.2015.2342.

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Strong disruptive ecological selection can initiate speciation, even in the absence of physical isolation of diverging populations. Species evolving under disruptive ecological selection are expected to be ecologically distinct but, at least initially, genetically weakly differentiated. Strong selection and the associated fitness advantages of narrowly adapted individuals, coupled with assortative mating, are predicted to overcome the homogenizing effects of gene flow. Theoretical plausibility is, however, contrasted by limited evidence for the existence of rugged adaptive landscapes in nature

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44

Cobb, D. G., T. D. Galloway, and J. F. Flannagan. "Effects of Discharge and Substrate Stability on Density and Species Composition of Stream Insects." Canadian Journal of Fisheries and Aquatic Sciences 49, no. 9 (1992): 1788–95. http://dx.doi.org/10.1139/f92-198.

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Effects of discharge/substrate stability relationships on the abundance, diversity, and distribution of aquatic insects were studied from 1986 to 1988 in three reaches of a small stream in the Manitoba escarpment. Substrate stability (percentage of streambed paving material at incipient motion) ranged from 80 to 20% at bankfull discharge. Eleven taxa of mayflies, 15 taxa of caddisflies, and 10 taxa of stoneflies were collected. All but a few taxa were present at all stations. Benthic insect densities were negatively correlated with increasing discharge and substrate particle movement at all st

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Pedersen, Eric J., Patrick L. Thompson, R. Aaron Ball, et al. "Signatures of the collapse and incipient recovery of an overexploited marine ecosystem." Royal Society Open Science 4, no. 7 (2017): 170215. http://dx.doi.org/10.1098/rsos.170215.

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The Northwest Atlantic cod stocks collapsed in the early 1990s and have yet to recover, despite the subsequent establishment of a continuing fishing moratorium. Efforts to understand the collapse and lack of recovery have so far focused mainly on the dynamics of commercially harvested species. Here, we use data from a 33-year scientific trawl survey to determine to which degree the signatures of the collapse and recovery of the cod are apparent in the spatial and temporal dynamics of the broader groundfish community. Over this 33-year period, the groundfish community experienced four phases of

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PERRY, CARLOS BAEZA, GLORIA ROJAS, ÓSCAR TORO-NÚÑEZ, and EDUARDO RUIZ-PONCE. "The fundamental karyotype and plastid DNA of Alstroemeria piperata (Liliales, Alstroemeriaceae), a species endemic to the Valparaíso Region, Chile." Phytotaxa 629, no. 2 (2023): 139–46. http://dx.doi.org/10.11646/phytotaxa.629.2.3.

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A recently described species of Chilean Alstroemeria, A. piperata, is endemic to the Mediterranean region and characterized by having storage roots covered with whitish hairs. It is a highly endangered species, consisting only of a single population with few individuals. Its chromosomes are 2n = 16, typical for the genus, but they possess unique secondary constrictions. A molecular analysis of plastid DNA revealed no single nucleotide polymorphisms, which suggests that processes of phenotypic stabilization and incipient genetic isolation may be occurring within the species.

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Fernandes, Daniell Rodrigo Rodrigues, Helena Carolina Onody, Rogéria Inês Rosa Lara, and Nelson Wanderley Perioto. "Annotated Checklist of Brazilian Ophioninae (Hymenoptera: Ichneumonidae)." EntomoBrasilis 7, no. 2 (2014): 124–33. http://dx.doi.org/10.12741/ebrasilis.v7i2.330.

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The aim of this study was to provide an updated checklist of the species of Ophioninae reported for Brazil. Were catalogued 86 nominal species of Ophioninae, of which 61 of Enicospilus, nine of Thyreodon, five of Stauropoctonus, three of Ophiogastrella and of Ophion, two of Alophophion and of Rhynchophion and one of Prethophion. Enicospilus, to occur in 19 states and, is the most widely distributed genus. The present study reveals that knowledge of the fauna of Ophioninae is incipient in Brazil, much of the country remains subsampled and should have priority in future studies.Lista Anotada dos

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Verloove, Filip, and Benoit Toussaint. "Observations sur des plantes rares ou en extension à Lille et environs (département du Nord, France)." Dumortiera 124 (November 19, 2024): 15–27. https://doi.org/10.5281/zenodo.14186194.

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Observations on rare or increasing plants in Lille and surrounding areas (Nord department, France). Several years of fieldwork in the Lille metropolitan area (France, department Nord), mostly between 2020 and 2023, yielded numerous interesting records of vascular plants. Many thermophilous species have recently reached the area and seem to be in the process of an incipient naturalization (or are already locally naturalized). This concerns both northward expanding native species and truly exotic species. Interesting records include Galium murale, Gamochaeta subfalcata, Oloptum miliaceum, Solanu

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Stefánsson, M. Ö., T. Sigurdsson, C. Pampoulie, et al. "Pleistocene genetic legacy suggests incipient species of Sebastes mentella in the Irminger Sea." Heredity 102, no. 5 (2009): 514–24. http://dx.doi.org/10.1038/hdy.2009.10.

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Sanford, Michelle R., Berna Demirci, Clare D. Marsden, Yoosook Lee, Anthony J. Cornel, and Gregory C. Lanzaro. "Morphological Differentiation May Mediate Mate-Choice between Incipient Species of Anopheles gambiae s.s." PLoS ONE 6, no. 11 (2011): e27920. http://dx.doi.org/10.1371/journal.pone.0027920.

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