Find research datasets worth reusing

opencc-by-4.0Jul 2006View details →

Fig. 2 in New Genera and Species of Oak-Associated Phylini (Heteroptera: Miridae: Phylinae) from Western North America

Fig. 2. Habitus photographs of Rubellomiris spp. and Rubeospineus spp.

opencc-zeroNov 2023View details →

Data from: Associations with landscape and local-scale wetland habitat conditions vary among migratory shorebird species during stopovers

Wetlands provide many ecosystem services and functions, including critical stopover habitat for numberous migratory shorbirds species. We conducted shorebird surveys at >14,000 wetlands and associated observed abundance with wetland variables for 16 species. We found that the scale at which observed abundance was associated with wetland extent varied among speceis, and that for most species abundance was positively associated with higher wetland density, presence of shallow water, more usable area, and limited vegetation. There was considerable variation in the strength and sometimes direction of responses. Our study helps inform optimal habitat requirementes for shorebirds.

opencc-zeroJan 2024View details →

Limited associations between MHC diversity and reproductive success in a bird species with biparental care

The selective pressure from pathogens on individuals can have direct consequences on reproduction. Genes from the major histocompatibility complex (MHC) are central to the vertebrate adaptive immune system and pathogen resistance. In species with biparental care, each sex has distinct reproductive roles and levels of investment, and due to a trade-off with immunity, one can expect different selective regimes acting upon the MHC of each parent. Here, we addressed whether couples combine each other's variation at MHC loci to increase their breeding success. Specifically, we used a 23-year dataset from a barn owl population (Tyto alba) to understand how MHC class Iα and IIβ functional divergence and supertypes of each parent were associated with clutch size and fledging success. We did not detect associations between MHC diversity or supertypes with the clutch size nor with the fledging success. In addition, to understand the relative contribution from the MHC of the genetic parents and the social parents, we analysed the fledging success using only a cross-fostered dataset. We found several associations of weak-to-moderate effect sizes between the father's MHC and fledging success: i) lower MHC-Iα divergence in the genetic father increases fledging success, which might improve paternal care during incubation, and ii) one and two MHC-IIβ DAB2 supertypes in the social father decrease and increase, respectively, fledging success, which may affect the paternal care after hatching. Furthermore, fledging success increased when both parents did not carry MHC-IIβ DAB1 supertype 2, which could suggest conditional effects of this supertype. Although our study relied on a substantial dataset, we showed that the associations between MHC diversity and reproductive success remain scarce and of complex interpretation in the barn owl. Moreover, our results highlighted the need to incorporate more than one proxy of reproductive success and several MHC classes to capture more complex associations.

Figures 5-7 in A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Figures 5-7. Lopesia pleromatis, sp. nov. Maia, male: (5) Wing; (6) 6th-8th abdominal segments (lateral view); (7) Terminalia, dorsal view.

Figures 12-14 in A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Figures 12-14. Lopesia pleromatis, sp. nov. Maia, female: (12) 6th-8th abdominal segments (dorsal view); (13) 6th-8th abdominal segments (ventral view); (14) Cerci (ventral view).

Figures 19-24 in A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Figures 19-24. Lopesia pleromatis, sp. nov. Maia, pupa: (19) Prothoracic spiracle; (20-22) Apex of prothoracic spiracle; (23) 2nd-4th abdominal segments (dorsal view); (24) terminal segment (dorsal).

Figures 25-26 in A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Figures 25-26. Lopesia pleromatis, sp. nov. Maia, larva: (25) Prothoracic spatula and associated papillae (ventral view); (26) Terminal segment (dorsal view).

Figures 15-18 in A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Figures 15-18. Lopesia pleromatis, sp. nov. Maia, pupa: (15) Head (frontal view); (16-18) Antennal horns.

Figures 1-4 in A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Figures 1-4. Lopesia pleromatis, sp. nov. Maia, male: (1) Head (ventral view); (2) 5th flagellomere; (3) Last flagellomere; (4) Hindleg, tarsal claw and empodium (lateral view).

opencc-zeroMar 2024View details →

Elucidating the association of trichome and stomatal densities across species

Previous studies suggested a trade-off between trichome density (Dt) and stomatal density (Ds) due to shared cell precursors. We clarified how, when, and why this developmental trade-off may be overcome across species. We derived equations to determine the developmental basis for Dt and Ds in trichome and stomatal indices (it and is), and the sizes of epidermal pavement cells (e), trichome bases (t) and stomata (s), and quantified the importance of these determinants of Dt and Ds for 78 California species. We compiled 17 previous studies of Dt-Ds relationships to determine the commonness of Dt-Ds associations. We modelled the consequences of different Dt-Ds associations for plant carbon balance. Our analyses showed that higher Dt was determined by higher it and lower e, and higher Ds by higher is and lower e. Across California species, positive Dt-Ds coordination arose due to it-is coordination and impacts of the variation in e. A Dt-Ds trade-off was found in only 30% of studies. Heuristic modeling showed that species sets would have the highest carbon balance with a positive or negative relationship or decoupling of Dt and Ds, depending on environmental conditions. Shared precursor cells of trichomes and stomata do not limit higher numbers of both cell types, or drive a general Dt-Ds trade-off across species. This developmental flexibility across diverse species enables different Dt-Ds associations according to environmental pressures. Developmental trait analysis can clarify how contrasting trait associations would arise within and across species.

opencc-by-4.0Mar 2024View details →

The original figure plates and associated images for "A new fossil species of the reticulated beetle genus Cupes (Coleoptera: Archostemata: Cupedidae) from Eocene Baltic amber"

The original figure plates and associated images for "A new fossil species of the reticulated beetle genus Cupes (Coleoptera: Archostemata: Cupedidae) from Eocene Baltic amber" in Zootaxa.   <h3>Abstract</h3> The single extant species of the reticulated beetle genus Cupes Fabricius is confined to North America. In contrast, a diverse and abundant fossil record of the genus has been documented in Cenozoic deposits in Europe, especially in Eocene Baltic amber. This paper describes another species, Cupes balticus sp. n., as the eighth named species of the genus from Baltic amber. The discovery of an additional Cupes species further evidences the hidden paleodiversity of reticulated beetles in European Eocene forests.   Yamamoto, S. (2024) A new fossil species of the reticulated beetle genus Cupes (Coleoptera: Archostemata: Cupedidae) from Eocene Baltic amber. Zootaxa, 5432(4), 451–460. DOI: 10.11646/ZOOTAXA.5432.4.1

opencc-zeroNov 2021View details →

Data from: An intronic transposon insertion associates with a trans-species color polymorphism in Midas cichlid fishes

Polymorphisms have fascinated biologists for a long time, but their genetic underpinnings often remained elusive. Here, we aimed to uncover the genetic basis of the gold/dark polymorphism that is eponymous of Midas cichlid fish (Amphilophus spp.) adaptive radiations in Nicaraguan crater lakes. While most Midas cichlids are of the melanic "dark morph", about 10% of individuals lose their melanic pigmentation during their ontogeny and transition into a conspicuous "gold morph". Using a new haplotype-resolved long-read assembly we discovered an 8.2kb, transposon-derived inverted repeat in an intron of an undescribed gene, which we term goldentouch in reference to the Greek myth of King Midas. The gene goldentouch is differentially expressed between morphs, likely due to structural implications of inverted repeats in both DNA and RNA (cruciform and hairpin formation). The near-perfect association with the phenotype across several independent populations suggests that this insertion likely underlies this trans-specific, stable polymorphism.

opencc-zeroDec 2021View details →

Long-term study shows that increasing body size in response to warmer summers is associated with a higher mortality risk in a long-lived bat species

Change in body size is one of the universal responses to global warming, with most species becoming smaller. While small size in most species corresponds to low individual fitness, small species typically show high population growth rates in cross-species comparisons. It is unclear, there- fore, how climate-induced changes in body size ultimately affect population persistence. Unravelling the relationship between body size, ambient temperature and individual survival is especially important for the conservation of endangered long-lived mammals such as bats. Using an individual-based 24-year dataset from four free-ranging Bechstein'sbat colonies (Myotis bechsteinii), we show for the first time a link between warmer summer temperatures, larger body sizes and increased mortality risk. Our data reveal a crucial time window in June–July, when juveniles grow to larger body sizes in warmer conditions. Body size is also affected by colony size, with larger colonies raising larger offspring. At the same time, larger bats have higher mortality risks throughout their lives. Our results highlight the importance of understanding the link between warmer weather and body size as a fitness-relevant trait for predicting species-specific extinction risks as consequences of global warming.

opencc-zeroMar 2022View details →

Molecular systematics, species concepts and myrmecophytism in Cecropia (Cecropieae: Urticaceae): Insights from restriction-site associated DNA

Cecropia is a group of fast-growing pioneer trees that are important in forest regeneration and a common ant-plant mutualism in the Neotropics. To investigate the evolution of mutualism between Cecropia and associated ants a phylogenetic framework is necessary. Cecropia species are difficult to distinguish morphologically and conventional genetic markers are insufficiently variable to resolve phylogeny. Our study aimed to infer relationships in approximately half of the species in the genus using restriction site associated DNA (RAD) sequencing. RAD sequence data resolved and supported species level relationships, despite potential introgression based on D-statistic tests. Our results support a deeply divergent non-myrmecophytic clade including C. sciadophylla and African Musanga. Results from geographically widespread and morphologically heterogenous C. obtusifolia and C. angustifolia suggests that current synonymy lumps together genetically dissimilar lineages. Reconstruction of ant associations on the highly supported Cecropia phylogeny inferred equal probability of the ancestor of Cecropia being myrmecophytic or not. More intensive genetic study is needed to refine species concepts in Cecropia.

Fig.1 in Associations Between Habitat Quality And Body Size In The Carpathian-Podolian Land Snail Vestia Turgida: Species Distribution Model Selection And Assessment Of Performance

Fig.1. Sampling sites for Vestia turgida in Ukraine (photo by O. Baidashnikov).

opencc-zeroMar 2022View details →

Reduced genetic diversity associated with the northern expansion of an amphibian species with high habitat-specialization, Ascaphus truei, resolved using two types of genetic markers

Reconstruction of historical relationships between geographic regions within a species' range can indicate dispersal patterns and help predict future responses to shifts in climate. Ascaphus truei (coastal tailed frog) is an indicator species of the health of forests and perennial streams in the Coastal and Cascade Mountains of the Pacific Northwest of North America. We used two genetic techniques — microsatellite and genotype-by-sequencing (GBS) — to compare the within region genetic diversity of populations near the northern extent of the species' range (British Columbia, Canada) to two geographic regions in British Columbia and two in Washington, USA, moving towards the core of the range. Allelic richness and heterozygosity declined substantially as latitude increased. The northernmost region had the lowest mean expected heterozygosities for both techniques (microsatellite, M = 0.20, SE = 0.080; GBS, M = 0.025, SE = 0.0010) and the southernmost region had the highest (microsatellite, M = 0.88, SE = 0.054; GBS, M = 0.20, SE = 0.0029). The northernmost regions (NC and MC) clustered together in population structure models for both genetic techniques. Our discovery of reduced diversity may have important conservation and management implications for population connectivity and the response of A. truei to climate change.

Fig. 5 in Associations Between Habitat Quality And Body Size In The Carpathian-Podolian Land Snail Vestia Turgida: Species Distribution Model Selection And Assessment Of Performance

Fig. 5. Partial dependence plot for terrain roughness index (tri).

Fig. 7 in Associations Between Habitat Quality And Body Size In The Carpathian-Podolian Land Snail Vestia Turgida: Species Distribution Model Selection And Assessment Of Performance

Fig. 7. Partial dependence plot for silt content (SLT).

Fig. 6 in Associations Between Habitat Quality And Body Size In The Carpathian-Podolian Land Snail Vestia Turgida: Species Distribution Model Selection And Assessment Of Performance

Fig. 6. Partial dependence plot for pH water (phh2o).