The local conservation status of the regionally rarest bird species in the state of Rio de Janeiro, southeastern Brazil

Mallet-Rodrigues, Francisco; Pacheco, José Fernando

doi:10.11609/jott.o4186.7510-37

Cited by 2 publications

(1 citation statement)

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“…This species is expected to occur in central-western South America throughout the entire Amazon basin (Remsen and Parker 1990, Lopes et al 2012, BirdLife International 2017. Despite its wide distribution, P. flavirostris is locally rare, poorly known and underrepresented in scientific collections (Gyldenstolpe 1951, Parker 1982, Remsen and Parker 1990, Mallet-Rodrigues and Pacheco 2015. Despite previous records throughout Brazil (Freitas et al 2006, Dias et al 2010, Lopes et al 2012, Meyer 2015, the only previous record of P. flavirostris from Acre is from the supplementary list of the birds of Alto Juruá Extractive Reserve (Whittaker et al 2002; Fig.…”

Section: Resultsmentioning

confidence: 99%

On the occurrence in Acre of four poorly-known bird species in southwestern Brazilian Amazon

Guilherme¹,

Mesquita²,

Santos³

et al. 2017

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The geographical ranges of many bird species are neither uniform nor continuous. Species that are common in some regions may be rare in others, or their status of occurrence may be uncertain. Here, we present the first documented record of Azure Gallinule (Porphyrio flavirostris) as well as details and discussion on the distribution and status of previous records of the Least Bittern (Ixobrychus exilis), Paint-billed Crake (Neocrex erythrops), and Plain-breasted Ground-dove (Columbina minuta) in the Brazilian state of Acre. While all these species have relatively wide ranges, little is known of their distribution in the southwestern Amazon basin.

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Section: Resultsmentioning

confidence: 99%

On the occurrence in Acre of four poorly-known bird species in southwestern Brazilian Amazon

Guilherme¹,

Mesquita²,

Santos³

et al. 2017

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Application of a Negative Multinomial Model Gives Insight into Rarity-Area Relationships

Chen

Zhao

et al. 2020

Forests

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The distribution of individuals of different species across different sampling units is typically non-random. This distributional non-independence can be interpreted and modelled as a correlated multivariate distribution. However, this correlation cannot be modelled using a totally independent and random distribution such as the Poisson distribution. In this study, we utilized the negative multinomial distribution to overcome the problem encountered by the commonly used Poisson distribution and used it to derive insight into the implications of field sampling for rare species’ distributions. Mathematically, we derived, from the negative multinomial distribution and sampling theory, contrasting relationships between sampling area, and the proportions of locally rare and regionally rare species in ecological assemblages presenting multi-species correlated distribution. With the suggested model, we explored the cross-scale relationships between the spatial extent, the population threshold for defining the rarity of species, and the multi-species correlated distribution pattern using data from two 50-ha tropical forest plots in Barro Colorado Island (Panama) and Heishiding Provincial Reserve (Guangdong Province, China). Notably, unseen species (species with zero abundance in the studied local sample) positively contributed to the distributional non-independence of species in a local sample. We empirically confirmed these findings using the plot data. These findings can help predict rare species–area relationships at various spatial scales, potentially informing biodiversity conservation and development of optimal field sampling strategies.

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The local conservation status of the regionally rarest bird species in the state of Rio de Janeiro, southeastern Brazil

Cited by 2 publications

References 43 publications

On the occurrence in Acre of four poorly-known bird species in southwestern Brazilian Amazon

On the occurrence in Acre of four poorly-known bird species in southwestern Brazilian Amazon

Application of a Negative Multinomial Model Gives Insight into Rarity-Area Relationships

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The local conservation status of the regionally rarest bird species in the state of Rio de Janeiro, southeastern Brazil

Cited by 2 publications

References 43 publications

On the occurrence in Acre of four poorly-known bird species in&nbsp;southwestern Brazilian Amazon

On the occurrence in Acre of four poorly-known bird species in&nbsp;southwestern Brazilian Amazon

Application of a Negative Multinomial Model Gives Insight into Rarity-Area Relationships

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On the occurrence in Acre of four poorly-known bird species in southwestern Brazilian Amazon

On the occurrence in Acre of four poorly-known bird species in southwestern Brazilian Amazon