How effective are interventions to reduce damage to agricultural crops from herbivorous wild birds and mammals? A systematic review protocol

Environmental Evidence, Год журнала: 2023, Номер 12(1)

Опубликована: Ноя. 1, 2023

Abstract Background An important conservation challenge is to mitigate negative impacts that wild birds and mammals can have on human practices livelihoods, not least agricultural crops. Technical interventions limit the number severity of damages are available, but evaluations intervention effectiveness usually limited in scope, meta-analyses rare. This protocol describes a systematic review seeks answer following question: How effective evaluated reducing damage from herbivorous crops? Methods The literature searches made databases Scopus Zoological Record. search string based Population-Intervention-Comparator-Outcome (PICO) formatted research question, terms fall within five categories: Wildlife type (Population), Damage object Counteraction (Intervention), Evaluation (Comparator), (Outcome). Initial scoping informed amendment string. A set 19 benchmark articles were used estimate ability capture relevant literature. To be eligible for inclusion review, original should study cases where settings exposure (measures implemented reduce crops caused by terrestrial mammals) compared control setting without interventions. Eligible studies will subject data extraction, systematically documented an Excel spreadsheet. Associated risk bias critically appraised included according seven criteria: 1. confounding biases, 2. post-intervention selection 3. misclassified comparison biases (observational only), 4. performance (experimental 5. detection 6. outcome reporting 7. assessment biases. results reported narrative and, if possible, quantitative syntheses. synthesis include summary statistic calculated each illustrated graphically forest plot. If meta-regression analyses conducted.

Язык: Английский

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Fecal DNA metabarcoding reveals the dietary composition of wintering Red-crowned Cranes (Grus japonensis)

Avian Research, Год журнала: 2023, Номер 14, С. 100145 - 100145

Опубликована: Янв. 1, 2023

Understanding the diet of threatened wildlife is basis for species-specific conservation and habitat management. The Red-crowned Crane (Grus japonensis) a vulnerable bird distributed in Northeast Asia. Previous dietary studies Cranes have more often analyzed plant foods based on observation microhistological identification. Here, total 45 fecal samples were collected November, December January (15 each month), then high throughput sequencing meta-barcoding approach was applied to determine primary (rbcL) animal (COⅠ) wintering cranes. There 230 OTUs 371 obtained. main period plants Miscanthus, Zea, Hordeum, which similar breeding migration periods. Both agricultural natural detected, indicating relatively broad niche. However, our study showed that from Theridiidae, Megascolecidae, Agelenidae, differing sharply with previous studies. Besides, higher number small terrestrial arthropods might be due indirect intake plants. composition both most diverse December, but homogeneous January. Zea became food late winter, as supplementary feeding conducted reserve. Supplementary could help get through winter. results obtained here would contribute development effective strategies Crane.

Язык: Английский

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Satellite Telemetry Insights into the Winter Habitat Use and Movement Ecology of Common and Demoiselle Cranes

Birds, Год журнала: 2023, Номер 4(4), С. 337 - 358

Опубликована: Ноя. 28, 2023

Using satellite telemetry, it is possible to track long-distance migrant birds with high accuracy and greater spatial coverage. However, prior 2014, less than 1% of bird species in India had been monitored using this technology. Between January February 2022, we deployed leg-mounted solar GPS/GSM transmitters Common Cranes Demoiselle (two each) study home ranges, movement, migration patterns, habitat use. We used 95% kernels define the total range size 50% delimit core areas. The winter use was assessed Generalized Linear Models (GLM). average estimated as 161.22 ± 172.08 km2 971.40 1023.57 km2, respectively. During migration, Crane-1 Crane-2 traveled an 471.19 442.42 176.97 24.82 km per day, covered daily distance 168.10 203.77 192.97 250.72 km, Water bodies croplands were most important variables influencing crane presence positively. In recent years, share food grain crops within area has declined from 43% 1994–1995 36% 2014–2015, while cotton doubled 11% 20%, indicating a probable cause concern near future.

Язык: Английский

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Flyways of Common Cranes Grus grus breeding in Fennoscandia

Ornis Svecica, Год журнала: 2024, Номер 34, С. 155 - 170

Опубликована: Дек. 16, 2024

Knowledge of migration patterns plays an essential role for understanding spatiotemporal distribution birds. Here we used >15,000 sightings 1,473 colour-ringed Common Cranes Grus grus to study birds breeding in five regions along a longitudinal gradient Fennoscandia. Our results confirm that Fennoscandian cranes mainly use either Western European flyway (W-flyway), winter France or Spain, Central (C-flyway), Hungary Israel. Finnish showed the greatest variation terms distance and direction only were recovered Africa. Many cranes, starting C-flyway change W-flyway SW Europe NW On other hand, Scandinavian are rarely observed C-flyway. However, substantial numbers from NE Sweden cross Baltic Sea migrate via Finland but then follow Germany southwards, especially during autumn. These can be conservation management, e.g. coordinate monitoring. They also relevant land planning, avoid windfarms at sites important migrating soaring while crossing seas, so-called ‘thermal bottleneck sites’.

Язык: Английский

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Breeding and migration performance metrics highlight challenges for White-naped Cranes

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Окт. 29, 2022

Globally, habitat loss has been deemed a major threat to wetland bird populations. However, the underlying mechanism of population declines and variations in birds' vulnerability throughout their annual cycle is challenging determine, yet critical for development targeted conservation strategies. Over seven years, landscape water availability explained occupancy breeding territories best when performance, migratory survival White-naped Crane (Grus vipio) eastern Mongolia were studied. Also, hatching success eggs was positively correlated with addition plant productivity. High ambient temperatures large numbers herder families (and hence more livestock) negatively affected success. at Luan, stopover site increased migration speed during cranes' northbound grounds. In contrast, conditions favorable, birds stayed longer southbound migration. Increased human density reduced use Finally, cranes arrived early grounds temperature high northeast Mongolia. Combining these findings historical trends key environmental factors on explains general decline observed this recent decades. Extrapolating our future climate predictions, outlook seems poor unless urgent action taken. Knowledge mechanisms identified paper should improve effectiveness actions.

Язык: Английский

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Conservation-related knowledge, interactions, and attitudes of local people toward Grey Crowned-Cranes ( Balearica regulorum ) in Tanzania

Avian Conservation and Ecology, Год журнала: 2023, Номер 18(2)

Опубликована: Янв. 1, 2023

The endangered Grey Crowned-Crane (Balearica regulorum) occurs extensively in agricultural areas and grasslands outside of protected Tanzania, posing high potential for conflict with people. This study sought to determine the extent crop depredation by cranes, illegal crane trade, attitudes towards interactions local people Crowned-Cranes. We interviewed 570 respondents (44% female) from 42 rural communities across four districts Tanzania. Most were farmers (n = 288), followed livestock keepers 169), businesspersons 75), government employees 24), others 14). Overall, 91% indicated that Crowned-Cranes not a pest crops but, those reporting damage, mixed or other types (maize, beans, bananas, tomatoes) reported highest frequency damage. had positive 96% responding they caused no harm cranes 4% saying used trapping chasing control There was evidence 6% having seen collection taking eggs chicks. occurred mainly Mbeya Region use traditional medicine. Crowned-Cranes, we recommend conservation education programs be developed delivered enhance

Язык: Английский

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Analysis of Crop Consumption Using Scatological Samples from the Red-Crowned Crane Grus japonensis in Eastern Hokkaido, Japan

Animals, Год журнала: 2023, Номер 13(20), С. 3167 - 3167

Опубликована: Окт. 10, 2023

Total DNA extracts from the intestinal contents of 60 flying red-crowned cranes (juveniles, subadults and adults) found dead in 2006-2021, feces 25 chicks collected June July 2016-2018, were used for PCR reactions with primers specific 16 crops, followed by high-throughput sequencing. The most predominant crop detected was corn adult subadult (61.7%). Other grains (barley, wheat, soybean) (5.0-8.3%) vegetables (tomatoes, Chinese cabbage, etc.) (1.7-6.7%) also cranes. Surprisingly, some crops not grown Kushiro Nemuro regions. There no significant difference intake status winter that other seasons crops. Corn (28.0%), soybeans (8.0%), wheat beet (4.0%) crane summer, though detection rates generally lower than those Alfalfa, which is eastern Hokkaido but cattle feed, Rice, buckwheat, adzuki beans, common potatoes carrots at any life stage, indicating preferences results suggest are dependent on dairy farmers their feed supply.

Язык: Английский

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Times of trouble—seasonal variation in number and severity of attacks on sheep caused by large carnivores and eagles in Sweden

European Journal of Wildlife Research, Год журнала: 2023, Номер 70(1)

Опубликована: Дек. 29, 2023

Abstract Wildlife managers and livestock owners can choose from a multitude of interventions to prevent carnivore attacks on domestic animals, ranging light sound deterrents fencing lethal control. To guide management make the best most cost-effective choice interventions, knowledge about where when these measures are needed is important. By identifying spatiotemporal patterns attacks, resources be used more efficiently such attacks. We Swedish nationwide, long-term data set identify inter- intra-seasonal variation in probability, number, severity (number killed or injured per attack) large sheep. Our results show that there specific “times trouble”, regarding number golden eagle ( Aquila chrysaetos ) late spring, brown bears Ursus arctos ), lynx Lynx wolves Canis lupus summer. Additionally, for wolves, varied throughout grazing season with peak latter part The guidance temporal prioritisation preventive reduce

Язык: Английский

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