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217 results for “conservation biology”
Data for Velazco et al. 2024 Biological Conservation. Zenodo
<p>This data was used for Velazco, S., Brandt, J., Zaiats, A., Requena-Mullor, J.M., Pillaca, K., Choza, B., Caughlin, T.T., 2024. Hotter, drier climate influences tropical tree cover loss and promotes bracken fern dominance within arrested successional patches in Andean cloud forests.</p>
Figure 1 in A review of the ecology and conservation biology of Såli (Micronesian Starling, Aplonis opaca guami) on Guam
Figure 1. Såli, or Micronesian Starling (Aplonis opaca guami). Photo by Martin Kastner.
A dark side of conservation biology: protected areas fail in representing subterranean biodiversity. Databases.
<p>We obtained distribution data for leiodids by digitizing the information provided by Fresneda and Salgado (2017). This information was updated and expanded with additional data from several sampling campaigns (unpublished data). For subterranean spiders, we included the entirety of the Alps range extending from France in the east westward through Switzerland, Italy, Liechtenstein, Austria, Germany, and Slovenia, by integrating available data in Global Biodiversity Information Facility (GBIF), Spider of Europe), Araneae.it and other literature sources.</p>
Fig. 1 in Ex-situ conservation of the critically endangered swamp forest crab Parathelphusa reticulata Ng, 1990 (Decapoda: Brachyura: Gecarcinucidae): observations on its reproduction and biology in captivity
Fig. 1. Captive breeding facility in the Singapore Botanic Gardens. Photograph: Daniel J. J. Ng.
Targeting fin whale conservation in the North-Western Mediterranean Sea: Insights on movements and behaviour from biologging and habitat modelling
Open the record for dataset details and reuse information.
Augmentation and conservation biological control of Tetranychus urticae on hops in Ohio
Open the record for dataset details and reuse information.
Data from: The interplay of intercropping, wildflower strips and weeds in conservation biological control and productivity
Open the record for dataset details and reuse information.
Nitrogen economy of alpine plants on the north Tibetan Plateau: nitrogen conservation by resorption rather than open sources through biological symbiotic fixation
<p>Nitrogen (N) is one of the most important factors limiting plant productivity, and N fixation by legume species is an important source of N input into ecosystems. Meanwhile, N resorption from senescent plant tissues conserves nutrients taken up in the current season, which may alleviate ecosystem N limitation. N fixation was assessed by the <sup>15</sup>N dilution technique in four types of alpine grasslands along the precipitation and soil nutrient gradients. The N resorption efficiency (NRE) was also measured in these alpine grasslands. The aboveground biomass in the alpine meadow was 4–6 times higher than in the alpine meadow-steppe, alpine steppe, and alpine desert-steppe. However, the proportion of legume species to community biomass in the alpine steppe and the alpine desert steppe was significantly higher than the proportion in the alpine meadow. N fixation by the legume plants in the alpine meadow was 0.236 g N m<sup>-2</sup>, which was significantly higher than N fixation in other alpine grasslands (0.041 to 0.089 g N m<sup>-2</sup>). The NRE in the alpine meadows was lower than in the other three alpine grasslands. Both the aboveground biomass and N fixation of the legume plants showed decreasing trends with the decline of precipitation and soil N gradients from east to west, while the NRE of alpine plants showed increasing trends along the gradients, which indicates that alpine plants enhance the NRE to adapt to the increasing droughts and nutrient-poor environments. The opposite trends of N fixation and NRE along the precipitation and soil nutrient gradients indicate that alpine plants adapt to precipitation and soil nutrient limitation by promoting NRE (conservative nutrient use by alpine plants) rather than biological N fixation (open sources by legume plants) on the north Tibetan Plateau.</p>
FIGURE 2 in New records of the giant planarian Polycladus gayi Blanchard, 1845 (Platyhelminthes: Geoplanidae) with notes on its conservation biology
FIGURE 2. Distributional map of Polycladus gayi Blanchard, 1845, developed with ArcGIS v. 10.4.1. Land use is classified by different colors and the new records are marked as green circles. Geopolitic regions are numbered from North to South.
FIGURE 1. Polycladus gayi Blanchard, 1845 in New records of the giant planarian Polycladus gayi Blanchard, 1845 (Platyhelminthes: Geoplanidae) with notes on its conservation biology
FIGURE 1. Polycladus gayi Blanchard, 1845: (A) living individual in native forest, Parque Tagua Tagua, Región de Los Lagos. Photo: Parque Tagua Tagua; (B) living individual with size reference, Villa García, Región de La Araucanía. Photo: Augusto Castro.
Data from: Data gaps and opportunities for comparative and conservation biology
Biodiversity loss is a major challenge. Over the past century, the average rate of vertebrate extinction has been about 100-fold higher than the estimated background rate and population declines continue to increase globally. Birth and death rates determine the pace of population increase or decline, thus driving the expansion or extinction of a species. Design of species conservation policies hence depends on demographic data (e.g., for extinction risk assessments or estimation of harvesting quotas). However, an overview of the accessible data, even for better known taxa, is lacking. Here, we present the Demographic Species Knowledge Index, which classifies the available information for 32,144 (97%) of extant described mammals, birds, reptiles, and amphibians. We show that only 1.3% of the tetrapod species have comprehensive information on birth and death rates. We found no demographic measures, not even crude ones such as maximum life span or typical litter/clutch size, for 65% of threatened tetrapods. More field studies are needed; however, some progress can be made by digitalizing existing knowledge, by imputing data from related species with similar life histories, and by using information from captive populations. We show that data from zoos and aquariums in the Species360 network can significantly improve knowledge for an almost eightfold gain. Assessing the landscape of limited demographic knowledge is essential to prioritize ways to fill data gaps. Such information is urgently needed to implement management strategies to conserve at-risk taxa and to discover new unifying concepts and evolutionary relationships across thousands of tetrapod species.
Data from: Varying the spatial arrangement of synthetic herbivore-induced plant volatiles and companion plants to improve conservation biological control
1.Conservation biological control aims to control pests by promoting wild populations of natural enemies. One challenge is to attract and retain efficient natural enemies in crop fields, which often are a suboptimal environment. Towards this goal, the attract-and-reward strategy relies on combining attractive synthetically produced herbivore-induced plant volatiles (HIPVs) with companion plants (non-crop plants which provide alternative resources to the targeted natural enemies). Although severely overlooked, the spatial arrangement of HIPV dispensers and rewards inside crop fields may strongly influence the foraging behaviour and persistence of natural enemies and thus the success of this pest management strategy. 2.We tested the impact of two contrasting spatial arrangements of HIPV dispensers and rewards, alternatively inside and around a block of target apple trees, on the efficacy of the biological control of Aphis citricola populations by the common predatory ladybird Propylea japonica in apple orchards in northern China. We used synthetic methyl salicylate (MeSA) as an attractant and the companion plant Calendula officinalis as a reward. To better understand how the spatial arrangement of MeSA dispensers and companion plants affected the attraction and foraging behaviour of adult ladybirds, we conducted indoor experiments in a flight mill, an olfactometer and a wind-tunnel. 3.Blocks of target trees treated with MeSA dispensers inside and companion plants around provided the most efficient pest control in orchards, compared with the opposite spatial arrangement. 4.The synthetic MeSA dispenser and the companion plant synergistically attracted ladybirds in the olfactometer and enhanced their flight activity in the flight mill. In the wind-tunnel, MeSA served as a spatial cue for ladybirds to find nearby prey, while companion plants were sought in the absence of prey. 5.Synthesis and applications. The present study will help further improvements of aphid control in apple orchards through a careful spatial arrangement of herbivore-induced plant volatiles dispensers (HIPVs) and rewards (companion plants) in optimized attract-and-reward strategies. Without such assessment, these strategies may be hazardous even with well-identified targeted natural enemies. Associated lab experiments highlight that HIPVs and companion plants interactively influence ladybird foraging pattern, and that their spatial arrangement can modulate the ability of such key predators to find their prey.
FIGURES 94–95. Habitat details. 94 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 94–95. Habitat details. 94 aerial view of Hong Kong Wetland Park (outlined in yellow) and Mai Po Inner Deep Bay Ramsar site (outlined in green). 95 Hong Kong Wetland Park habitat.
FIGURES 7–17. Key characters Males 1. 7, 11, 12 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 7–17. Key characters Males 1. 7, 11, 12 Pteroptyx tener (Limbang ANIC): 7 abdomen dorsal; 11 middle leg apex of tibia and tarsus (basitarsus arrowed); 12 terminal abdomen ventral. 8, 14–17 P. m a i p o sp. nov.: 8 dorsal abdomen; 14 aedeagus dorsal (arrows indicate from top – base of lateral lobes, anterior end of separation of lateral lobes, apices of lateral lobes); 15, 16 aedeagal sheath left lateral (paraprocts arrowed), ventral (paraprocts arrowed); 17 ventral surface tergite 8 flanges arrowed. 9, 10 P. macdermotti (Philippines, Donsol ANIC): 9 ventral abdomen posterior end to left (PLP posterolateral projections, MPP median posterior projection; T8 tergite 8; incurving lobes of V7 arrowed); 10 dorsal posterior abdomen posterior end to left. 13 P. similis paratype male (Malaysia Kinarut ANIC): dorsal terminal abdomen (lobes bordering median emargination of tergite 8 posterior margin arrowed).
FIGURES 85–92 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 85–92. Pteroptyx maipo sp. nov. Mating interactions. 85–90 male female mating; 91, 92 longitudinal sections through abdominal apices of mating pair. 85 pair demonstrating copulation clamp; 86–88 other copulatory positions assumed; 89, 90 male female interactions prior to mating, male on top; 91, 92 male to right, possible spermatophore arrowed in 92.
FIGURES 1–6 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 1–6. Pteroptyx maipo sp. nov. Paratype males (Mai Po) 1 (dorsal), 2 (ventral); paratype females 3 (dorsal), 4 (ventral); larva 5 (ventral), 6 (dorsal head to right).
FIGURES 18–26. Key characters Males 2. 18, 23 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 18–26. Key characters Males 2. 18, 23 Pteroptyx truncata paratype male (Indonesia ANIC): 18 ventral abdomen; 23 ventral deflexed elytral apex. 19–21 P. gelasina paratype male (Malaysia Sabah ANIC): 19 terminal abdomen dorsal; 20, 21 elytral apices dorsal (20) and ventral (terminal emarginations of the elytra are arrowed). 22 P. macdermotti (Philippines Donsol ANIC): ventral posterior body and hind legs, MFC arrowed. 24–26 P. malaccae (24, 25 Thailand Kon Karn ANIC; 26 Nam Heng ANIC): 24 dorsal abdomen; 25 ventral abdomen; 26 ventral left hind leg.
FIGURES 49–52 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 49–52. Pteroptyx maipo sp. nov. Male and female features. 49, 50 male hind leg inner face (49) and anterior face (50) showing MFC; 51, 52 ventral female abdomen, 51 ventral V6, 7 only; 52 ventral posterior body.
FIGURES 71–76 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 71–76. Pteroptyx maipo sp. nov. Larval head by SEM. 71 anterior, dorsal surface to top of page; 72 dorsal; 73, 74 ventral; 75, 76 larval antenna ventral, note abnormal two sense cones on the tip of right antenna in Fig 75. G, galea; LP, labial palp; M, mandible; MXP, maxillary palp; A1–A3, antennal segments 1–3; SC, sense cone.
FIGURES 77–84 in Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation
FIGURES 77–84. Pteroptyx maipo sp. nov. Male (77–79) and female (80–84) pupae. 77, 78, 81, 84 ventral (arrows in 77 indicate kinked elytra; 84 is one day old pupa with light organ illuminated); 79, 80 ventral terminal abdominal segments; 82 dorsal; 83 left lateral.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.