Bird movement in a fragmented Atlantic Forest landscape

Marini, Miguel Ângelo

doi:10.1080/01650521003656606

Cited by 22 publications

(7 citation statements)

References 40 publications

(39 reference statements)

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“…We believe that many banded birds were moving through the landscape, using patches as stepping stones in regional movement (Marini 2010;Prevedello et al 2018). This behavior may suggest large home range sizes for forest birds in this agricultural landscape (Şekercioğlu et al 2007;Marini 2010;Silveira et al 2016;Prevedello et al 2018). Therefore, the lack of banded bird records in our target patch is indeed an important clue for our passive restoration investigation, suggesting that many fruit consumers could spread plant seeds beyond the forest edges.…”

Section: Bird Data Collected: Consequences For Forest Restoration Invmentioning

confidence: 92%

“…Low numbers of banded bird records were expected due to the low ecological integrity of forest patches in the study area (Alexandrino et al 2017), where food supply may not be sufficient to support resident birds (Verga et al 2017), forcing them to explore adjacent patches in other landscapes to feed (Pizo and Santos 2011;Luz 2013;Boesing et al 2017). We believe that many banded birds were moving through the landscape, using patches as stepping stones in regional movement (Marini 2010;Prevedello et al 2018). This behavior may suggest large home range sizes for forest birds in this agricultural landscape (Şekercioğlu et al 2007;Marini 2010;Silveira et al 2016;Prevedello et al 2018).…”

Section: Bird Data Collected: Consequences For Forest Restoration Invmentioning

confidence: 95%

“…Each bird captured was identified to species and received a numbered metallic band provided by the Centre for Bird Monitoring of the Brazilian Institute for Environmental Affairs (CEMAVE/IBAMA) and up to three color plastic bands in a unique color combination regardless of the species, in order to allow individual identification via visual observation (Marini 2010). Before releasing the bird, we also took photographs and biometric measurements such as bill length, height and width, and body mass.…”

Section: Banding Birds In the Forest Patchmentioning

confidence: 99%

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Challenges in Engaging Birdwatchers in Bird Monitoring in a Forest Patch: Lessons for Future Citizen Science Projects in Agricultural Landscapes

Alexandrino

Navarro

Paulete

et al. 2019

CSTP

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Birdwatchers hold substantial potential as data collectors for research, and in Brazil, the birdwatching community has been growing since the early 2000s. Currently the effects of birds on forest patch restoration in agricultural landscapes is a major focus of avian conservation ecology, but these patches are not frequently visited by birdwatchers in Brazil, hindering the collection of useful bird data. We thus developed a project, Did I see a banded bird!?, which was designed to attract birdwatching volunteers to monitor birds within a forest patch. We explored three motivating factors to attract birdwatchers: (1) we offered an unprecedented opportunity for birdwatchers to record individual birds with colored bands, a challenging activity appealing to birdwatchers' competitive nature; (2) our study area offered a new location with free, easy access and no logistical impediments; and (3) we continuously provided information on the benefits of birdwatching records for science and society to encourage participation. The project was widely announced and we had 302 applicants. However, the barriers faced throughout the project's execution, including limited researcher-volunteer interaction, low security in the patch, and the presence of few species for birdwatchers to see, reduced the motivation and participation of most applicants. Consequently, from a list of 155 highly qualified applicants who lived near the patch and were skilled in forest birding, only 10 visited the patch. Our findings provide important guidelines for researchers planning similar citizen science projects in agricultural landscapes, mainly in countries where citizen science is still not common.

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Section: Bird Data Collected: Consequences For Forest Restoration Invmentioning

confidence: 92%

Section: Bird Data Collected: Consequences For Forest Restoration Invmentioning

confidence: 95%

Section: Banding Birds In the Forest Patchmentioning

confidence: 99%

See 1 more Smart Citation

Challenges in Engaging Birdwatchers in Bird Monitoring in a Forest Patch: Lessons for Future Citizen Science Projects in Agricultural Landscapes

Alexandrino

Navarro

Paulete

et al. 2019

CSTP

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“…These characteristics may be useful in research on feeding ecology and competition, since flows of bird populations from this vegetation strata among forest fragments are, generally, not intense (Yabe et al, 2010;Marini, 2010). Furthermore, the composition of the diet of insectivorous birds may be related to factors such as competition or the reduced abundance of arthropods as a food resource (Blake and Hoppes, 1986;Naranjo and Ulloa, 1997), or difference in body size between syntopic species (Hespenheide, 1971).…”

Section: Introductionmentioning

confidence: 99%

Feeding resource partitioning between two understorey insectivorous birds in a fragment of Neotropical cloud forest

2015

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The food habits and niche overlap based on diet composition and prey size of two species of understorey insectivorous birds were investigated in an area of montane rain forest in the state of Minas Gerais, southeastern Brazil. A total of 43 birds were captured: 33 individuals of Conopophaga lineata (Conopophagidae) with 13 recaptures, and 10 individuals of Myiothlypis leucoblephara (Parulidae) with 12 recaptures, from which were obtained respectively 33 and 10 fecal samples. Fragments of 16 groups of arthropods, plus insect eggs, were identified in these samples. Conopophaga lineata predominantly consumed Formicidae (32%) and Isoptera (23.6%). However, the index of alimentary importance (AI) of Isoptera (3.53) was lower than other groups such as Formicidae (AI = 61.88), Coleoptera (AI = 16.17), insect larvae (AI = 6.95) and Araneae (AI = 6.6). Myiothlypis leucoblephara predominantly consumed Formicidae (28.2%) and Coleoptera (24.4%), although Coleoptera and Hymenoptera non-Formicidae had the highest values of AI (38.71 and 22.98 respectively). Differences in the proportions of the types of arthropods consumed by birds were not enough to reveal their separation into feeding niches (overlap = 0.618, p observed ≤ expected = 0.934), whereas differences in the use of resources was mainly due to the size of the prey (p<0.001), where C lineata, the species with the highest body mass (p<0.001) consumed larger prey. It is plausible that prey size is an axis of niche dimension that allows the coexistence of these species.Keywords: birds, cloud forest, insectivores, Neotropical region, niche. Partição de recursos alimentares entre duas espécies de aves insetívoras desub-bosque em um fragmento de floresta nebular Neotropical ResumoOs hábitos alimentares e a sobreposição de nicho em termos de composição da dieta e tamanho de presas de duas espécies de aves insetívoras de sub-bosque foram investigados em uma área de floresta ombrófila altomontana no estado de Minas Gerais, sudeste do Brasil. Foram capturados 33 indivíduos de Conopophaga lineata (Conopophagidae), com 13 recapturas, e 10 indivíduos de Myiothlypis leucoblephara (Parulidae), com 12 recapturas, dos quais foram obtidas, respectivamente, 33 e 10 amostras fecais, onde foram identificados fragmentos de 16 grupos de artrópodes, além de ovos de insetos. Conopophaga lineata consumiu predominantemente Formicidae (32%) e Isoptera (23,6%). Contudo, o índice de importância alimentar (IA) de Isoptera (3,53) esteve abaixo de outros grupos como Formicidae (IA = 61,88), Coleoptera (IA = 16,17), larva de inseto (IA = 6,95) e Araneae (IA = 6,6). Myiothlypis leucoblephara consumiu predominantemente Formicidae (28,2%) e Coleoptera (24,4%), embora em termos de IA o predomínio tenha sido de Coleoptera (IA = 38,71) e Hymenoptera não Formicidae (IA = 22,98). Diferenças nas proporções dos tipos de artrópodes consumidos pelas aves não foram suficientes para revelar separação em seus nichos alimentares (sobreposição = 0,618; p observado ≤ esperado = 0,934), ao passo que divergência...

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“…The dispersal will highly depend on the patches that are connected (or close enough to be reached), or the movement ability of the bird (Antongiovanni and Metzger 2005;Castellon and Sieving 2006;Marini 2010). Further and specific analyses are indicated for these particular birds in order to review their population status because of the accelerating land cover change in the last years.…”

Section: Landscape Connectivitymentioning

confidence: 99%

Dinâmica de cobertura da terra e a conservação de aves endêmicas no Chaco paraguaio

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Bird movement in a fragmented Atlantic Forest landscape

Cited by 22 publications

References 40 publications

Challenges in Engaging Birdwatchers in Bird Monitoring in a Forest Patch: Lessons for Future Citizen Science Projects in Agricultural Landscapes

Challenges in Engaging Birdwatchers in Bird Monitoring in a Forest Patch: Lessons for Future Citizen Science Projects in Agricultural Landscapes

Feeding resource partitioning between two understorey insectivorous birds in a fragment of Neotropical cloud forest

Dinâmica de cobertura da terra e a conservação de aves endêmicas no Chaco paraguaio

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