The usefulness of Unmanned Aerial Vehicles (UAV) in white stork censusing DOI Creative Commons
Marcin Tobółka, José I. Aguirre, Łukasz Dylewski

et al.

Research Square (Research Square), Journal Year: 2022, Volume and Issue: unknown

Published: Dec. 29, 2022

Abstract Long-term bird monitoring brings vital information on the effects of environmental changes wildlife. However, covering a large area with direct observations in field is time-consuming and economically costly. New technologies, such as Unmanned Aerial Vehicles (UAV), are effective often noninvasive tools successfully used monitoring. stability method essential when handling long-term data context population changes. We examined efficiency precision collected by UAV human observers within two distinct populations white stork Ciconia ciconia , Poland Spain, presenting different nesting patterns, solitary colonial breeding. In Polish Spanish populations, number fledglings was significantly lower recorded observer than UAV, i.e. 2.21 vs 2.60, 1.35 1.55. The mean time needed to record longer using observer. detected nests colonies differed between average 13.1 7.4, respectively. difference linked type nest substrates, trees, error higher located human-made structures. probability mistake recording storks Spain Poland. Although UAVs helpful tool monitoring, studies, they must be caution awareness that obtained results might differ from those previously framework.

Language: Английский

Priorities identification of habitat restoration for migratory birds under the increased water level during the middle of dry season: A case study of Poyang Lake and Dongting Lake wetlands, China DOI Creative Commons
Guiqiao Wang, Haipeng Wu, Juan Dai

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 151, P. 110322 - 110322

Published: May 8, 2023

The distribution of wetland ecosystem restoration sites is uneven and resources are limited, so priority identification essential for rational resource allocation reduction biodiversity loss. Under the influence human activities climate variability, water level during middle dry season (MDS) had a significant tendency to increase in Poyang Lake (PYL) Dongting (DTL), which directly affected habitat suitability (HS) migratory birds threatened their existence. Based on data HS weight birds, four evaluation indexes, namely, accuracy (API), geographical area equalization (GAE), spatial autocorrelation consistency (SAC) comprehensive index (CEI), were used evaluate compare priorities effects classification methods, natural breaks method, quantile equal interval geometric method. results showed that method best methods identify PYL DTL wetlands, respectively, under condition increased (IWL) MDS. proposed this study its can provide scientific basis regulation conservation (especially birds).

Language: Английский

Citations

18
Global risk mapping of highly pathogenic avian influenza H5N1 and H5Nx in the light of epidemic episodes occurring from 2020 onward DOI Open Access
Marie-Cécile Dupas, María F. Vincenti‐González, Madhur S. Dhingra

et al.

Published: Feb. 13, 2025

Avian influenza (AI) is a highly contagious viral disease affecting poultry and wild water birds, posing significant global challenges due to its high mortality rates economic impacts. Highly pathogenic avian (HPAI) outbreaks, particularly those caused by H5N1 variants, have surged since their first occurrence in 1959. The HPAI clade 2.3.4.4b viruses notably expanded geographical reach, numerous countries, diverse species, now domestic mammals. Using an ecological niche modelling approach, this study aims elucidate the environmental factors associated with increased H5 cases 2020, investigate potential shifts niches, predict new areas suitable for local circulation. Focusing on H5Nx strains, we developed models case both birds while considering two distinct periods: 2015-2020 2020-2022. Key predictors include chicken duck population density, human distance bodies, several land cover variables. Post-2020, observe notable increase relative importance of some these predictors, such as intensive density cultivated vegetation. resulting risk maps reveal suitability circulation Europe, Asia, well North South America, expansions at post-2020. spatial distribution occurrences appears be primarily influenced urban open regions. Overall, derived from our identify regions where surveillance control measures should prioritised. Finally, analyses also highlight shift diversity species affected higher variety sea being impacted This suggests that may accompanied broader range susceptible species. results further contribute understanding epidemiology.

Language: Английский

Citations

0
Global risk mapping of highly pathogenic avian influenza H5N1 and H5Nx in the light of epidemic episodes occurring from 2020 onward DOI Open Access
Marie-Cécile Dupas, María F. Vincenti‐González, Madhur S. Dhingra

et al.

Published: Feb. 13, 2025

Avian influenza (AI) is a highly contagious viral disease affecting poultry and wild water birds, posing significant global challenges due to its high mortality rates economic impacts. Highly pathogenic avian (HPAI) outbreaks, particularly those caused by H5N1 variants, have surged since their first occurrence in 1959. The HPAI clade 2.3.4.4b viruses notably expanded geographical reach, numerous countries, diverse species, now domestic mammals. Using an ecological niche modelling approach, this study aims elucidate the environmental factors associated with increased H5 cases 2020, investigate potential shifts niches, predict new areas suitable for local circulation. Focusing on H5Nx strains, we developed models case both birds while considering two distinct periods: 2015-2020 2020-2022. Key predictors include chicken duck population density, human distance bodies, several land cover variables. Post-2020, observe notable increase relative importance of some these predictors, such as intensive density cultivated vegetation. resulting risk maps reveal suitability circulation Europe, Asia, well North South America, expansions at post-2020. spatial distribution occurrences appears be primarily influenced urban open regions. Overall, derived from our identify regions where surveillance control measures should prioritised. Finally, analyses also highlight shift diversity species affected higher variety sea being impacted This suggests that may accompanied broader range susceptible species. results further contribute understanding epidemiology.

Language: Английский

Citations

0
Assessment of Suitable Habitat of the Demoiselle Crane (Anthropoides virgo) in the Wake of Climate Change: A Study of Its Wintering Refugees in Pakistan DOI Creative Commons
Tauheed Ullah Khan, Inam Ullah, Yiming Hu

et al.

Animals, Journal Year: 2024, Volume and Issue: 14(10), P. 1453 - 1453

Published: May 13, 2024

The inevitable impacts of climate change have reverberated across ecosystems and caused substantial global biodiversity loss. Climate-induced habitat loss has contributed to range shifts at both species community levels. Given the importance identifying suitable habitats for at-risk species, it is imperative assess potential current future distributions, understand influential environmental factors. Like many Demoiselle crane not immune climatic pressures. Khyber Pakhtunkhwa Balochistan provinces in Pakistan are known wintering grounds this species. that among top five countries facing devastating effects change, study sought conduct distribution modeling under using data collected during 4 years field surveys. We developed a Maximum Entropy model predict projected area. Future projections 2050 2070 were carried out two representative concentration pathways (RCP 4.5 RCP 8.5) three circulation models, including HADGEM2-AO, BCC-CSM1-1, CCSM4. most factors shaping Crane suitability included temperature seasonality, annual mean temperature, terrain ruggedness index, human population density, all which significantly (81.3%). identified 35% area as moderately (134,068 km

Language: Английский

Citations

2
Path Inference based on Voronoi Graph for Unmanned Maritime Vehicles DOI
Xin Xu

Robotics and Autonomous Systems, Journal Year: 2023, Volume and Issue: 173, P. 104616 - 104616

Published: Dec. 28, 2023

Language: Английский

Citations

4
Reconstruction of Population-Level Migration Trajectories of Black-Faced Spoonbill (Platalea minor) Based on Citizen Science Data DOI Creative Commons
Ruilin Wang, Chang Liu,

Keming Ma

et al.

Animals, Journal Year: 2024, Volume and Issue: 14(11), P. 1663 - 1663

Published: June 1, 2024

Migration is a critical ecological process for birds. Understanding avian migratory routes essential identifying important stopover sites and key foraging areas to ensure high-quality stopovers The Black-faced Spoonbill (Platalea minor), national Grade I protected wild animal in China, classified as endangered on the IUCN Red List of Threatened Species. Studying across different life histories vital its conservation. However, research this species has been very limited. This study, utilizing citizen science data Level-order-Minimum-cost-Traversal (LoMcT) algorithm, reconstructs trajectories from 2018 2022. results show that Wenzhou, Xiamen, Shantou, Shanwei, Hsinchu, Chiayi, Tainan are significant species. actively during migration season southeastern coastal region China. simulation study reveal activity patterns Spoonbill, providing support

Language: Английский

Citations

1
The usefulness of unmanned aerial vehicles (UAV) in white stork censusing DOI Creative Commons
Marcin Tobółka, José I. Aguirre, Łukasz Dylewski

et al.

European Journal of Wildlife Research, Journal Year: 2023, Volume and Issue: 69(4)

Published: June 15, 2023

Abstract Unmanned aerial vehicles (UAV) are effective and often noninvasive tools successfully used in bird monitoring. However, when handling long-term data the context of population changes, consistency methods over time is essential as method-related bias may lead to wrong conclusions. In two distinct populations white stork Ciconia ciconia, Poland Spain, we compared censusing methods: traditional observation by a human from ground using UAV. We recorded number fledglings, needed obtain this information, detected breeding pairs colonies. investigated 57 117 nests respectively. fledglings was significantly lower observer than UAV, i.e., 2.21 vs. 2.60 1.35 1.55. The probability mistakenly recording colonial storks Spain solitary nesting Poland. mean record longer UAV both populations. colonies differed between 13.1 7.4, difference higher were on trees human-made structures. conclude that introducing UAVs studies affect results should be performed cautiously.

Language: Английский

Citations

1
Priorities identification of habitat restoration for migratory birds under the early dry season: A case study of Poyang Lake and Dongting Lake wetlands, China DOI Creative Commons
Haipeng Wu, Guiqiao Wang, Juan Dai

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 7, 2023

Abstract Context : Poyang Lake (PYL) and Dongting (DTL), as the two largest freshwater lakes in China, play crucial roles biodiversity conservation water resource allocation. However, due to combined impacts of human activities climate change, timing their early dry season (EDS) has significantly changed recent years, leading ecological economic issues. It is essential conduct priority identification wetland restoration, because limitations funds, policies, manpower. Objectives We determine 1) a framework based on habitat suitability changes weight data migratory birds; 2) areas for restoration PYL DTL wetlands; 3) efficiency areas. Methods birds with studies identify use three landscape pattern indices spatial autocorrelation analysis investigate distribution key evaluate restoration. Results The area very high, low, low priorities 90.19, 463.48, 404.47, 2498.42 km 2 , respectively. And that 109.61, 381.46, 331.68, 1809.27 exhibits high degree fragmentation low-priority In contrast, both high-priority Conclusion these wetlands should be focus efforts they are most efficient result great significance resources wetlands.

Language: Английский

Citations

1
Temporal and spatial variation in reproductive benefits in a partial migrant DOI Creative Commons
Stephanie Witczak, Urs G. Kormann, Benedetta Catitti

et al.

Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 25, 2024

In partial migrant systems, where residents and migrants coexist within a population, are commonly predicted to gain reproductive advantage over through priority access high-quality territories an earlier breeding start. Annual variation in benefits has been suggested be important for the coexistence of both strategies as differences wintering conditions experienced by two may result periodic migrants. However, importance spatial environmental output partially populations remains largely unexplored. We investigated population Swiss red kites (Milvus milvus) temporally, across years, spatially, along elevational gradient. gathered 4 years data combined with 183 GPS-derived full annual cycles from individuals Alpine foothills. At low, but not high, elevations, produced more fledglings than also found evidence strategies. Furthermore, while did decline later start, there was no difference start between migration The results this study suggest that can vary due use spatially distinct overwintering grounds because differently affected variables area, such elevation. emphasizes temporal must considered when predicting how migratory species will respond future change.

Language: Английский

Citations

0
An early warning system for highly pathogenic viruses borne by waterbird species and related dynamics of climate change in the Caspian Sea region: Outlines of a concept DOI Creative Commons
Guy Petherbridge, А. А. Гаджиев, А. М. Шестопалов

et al.

South of Russia ecology development, Journal Year: 2022, Volume and Issue: 17(4), P. 233 - 263

Published: Dec. 30, 2022

Aim. Formulation of the outlines concept ViEW ( V iral E arly W arning) which is intended as a long term system multidisciplinary transboundary cooperation between specialist institutions all five Caspian region states to research, regularly monitor and share data about generation, transmission epidemiology avian‐borne pathogens their vectors in region, ways climate change may affect these processes. Material Methods. The based on experience authors researching processes incorporated an in‐depth survey literature involved. Results. are presented this study for review comment by interested parties stakeholders. Conclusion. Review activities opinions specialists organizations with remits relating development, establishment maintenance ViEW, indicates that such necessity global animal human health because role plays mass migration species waterbird known avian influenza already evident impacts phenologies. Waterbirds frequenting Sea littorals habitats together constitute major potential hotspot or High Risk generation highly pathogenic viruses other dangerous zoonotic diseases.

Language: Английский

Citations

2