A Classification-Tree Analysis of Nesting Habitat in an Island Population of Northern Harriers

Massey, B.H.; Bowen, Rhys; Griffin, Curtice R.; McGarigal, Kevin

doi:10.1525/cond.2008.110.1.177

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…The results of the study relate to other studies where landscape structure, represented by various metrics, had an effect on species' selection of the breeding habitat (Barbaro & Van Halder, ; Berry, Bock, & Haire, ; Bomhard, ; Jokimäki & Solonen, ; Jones, ; Massey, Bowen, Griffin, & McGarigal, ; Wiens, Chr, Horne, & Ims, ). Differences in the total area of the presumed home ranges of all magpie nests were likely caused by the arbitrarily chosen borders of the study area.…”

Section: Discussion and Outlooksupporting

confidence: 73%

Breeding habitat and nest‐site selection by an obligatory “nest‐cleptoparasite”, the Amur FalconFalco amurensis

Frommhold

Heim

Barabanov

et al. 2019

Ecology and Evolution

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The selection of a nest site is crucial for successful reproduction of birds. Animals which re‐use or occupy nest sites constructed by other species often have limited choice. Little is known about the criteria of nest‐stealing species to choose suitable nesting sites and habitats. Here, we analyze breeding‐site selection of an obligatory “nest‐cleptoparasite”, the Amur Falcon Falco amurensis. We collected data on nest sites at Muraviovka Park in the Russian Far East, where the species breeds exclusively in nests of the Eurasian Magpie Pica pica. We sampled 117 Eurasian Magpie nests, 38 of which were occupied by Amur Falcons. Nest‐specific variables were assessed, and a recently developed habitat classification map was used to derive landscape metrics. We found that Amur Falcons chose a wide range of nesting sites, but significantly preferred nests with a domed roof. Breeding pairs of Eurasian Hobby Falco subbuteo and Eurasian Magpie were often found to breed near the nest in about the same distance as neighboring Amur Falcon pairs. Additionally, the occurrence of the species was positively associated with bare soil cover, forest cover, and shrub patches within their home range and negatively with the distance to wetlands. Areas of wetlands and fallow land might be used for foraging since Amur Falcons mostly depend on an insect diet. Additionally, we found that rarely burned habitats were preferred. Overall, the effect of landscape variables on the choice of actual nest sites appeared to be rather small. We used different classification methods to predict the probability of occurrence, of which the Random forest method showed the highest accuracy. The areas determined as suitable habitat showed a high concordance with the actual nest locations. We conclude that Amur Falcons prefer to occupy newly built (domed) nests to ensure high nest quality, as well as nests surrounded by available feeding habitats.

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Section: Discussion and Outlooksupporting

confidence: 73%

Breeding habitat and nest‐site selection by an obligatory “nest‐cleptoparasite”, the Amur FalconFalco amurensis

Frommhold

Heim

Barabanov

et al. 2019

Ecology and Evolution

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“…Different modeling approaches exhibit distinct advantages and limitations (Li & Wang, 2013; Thuiller et al., 2009), whereas ensemble species distribution models (ESDMs) amalgamate the strengths of diverse models and thereby enhance the robustness of predictive outcomes. We used an ESDM that included a generalized linear model (GLM) (Brito et al., 1999), generalized additive model (GAM) (Li et al., 2017b), generalized boosted regressions model (Friedman et al., 2000), classification tree analysis (CTA) (Massey et al., 2008), random forest (RF) (Breiman, 2001), and maximum entropy model (MaxEnt) (Ancillotto et al., 2019).…”

Section: Methodsmentioning

confidence: 99%

Establishing a protected area network in Xinlong with other effective area‐based conservation measures

Chen,

Tian,

Pan

et al. 2024

Conservation Biology

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Protected areas (PAs) are pivotal to biodiversity conservation, yet their efficacy is compromised by insufficient funding and management. So‐called other effective area‐based conservation measures (OECMs) present a paradigm shift and address PA limitations. Such measures can expand conservation areas, enhance connectivity, and improve the existing system. To assess the conservation status of biodiversity in Tibetan cultural areas in China, we investigated the spatial distribution of wildlife vulnerable to human disturbance (large‐ and medium‐sized mammals and terrestrial birds) in Xinlong, a traditional Tibetan cultural area. In particular, we compared a PA (Xionglongxi Nature Reserve) and OECMs targeting species conservation. We also investigated the relationship of wildlife with human temporal and spatial activities. The OECMs complemented areas not covered by PA, especially in rich understory biodiversity regions. More species in OECMs tolerated human presence than species in the PA. Existing biodiversity reserves failed to cover areas of high conservation value in Tibet and offered limited protection capacity. Expanding PAs and identifying OECMs improved Xinlong's system by covering most biodiversity hotspots. Building on the tradition of wildlife conservation in Tibet, harnessing OECMs may be an effective means of augmenting biodiversity conservation capacity. We recommend further evaluation of OECMs effectiveness and coverage in Tibetan area as a way to enhance the current PA system.

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“…Different modeling approaches exhibit distinct advantages and limitations [27][28][29], while ensemble species distribution models (ESDMs) offer the capability to amalgamate the strengths and drawbacks of diverse models, thereby enhancing the robustness of predictive outcomes. Within our study, our ensemble model encompasses a spectrum of models, namely generalized linear model (GLM) [30], generalized additive model (GAM) [31], generalized boosted regressions model (GBM) [32], classification tree analysis (CTA) [33], random forest (RF) [34] and maximum entropy model (MaxEnt) [35].…”

Section: Data Analysis 231 Ensemble Species Distribution Modelsmentioning

confidence: 99%

The Minimal Impact of Anthropogenic Disturbances on the Spatial Activities of Leopard Cats in Xinlong, China

Chen,

Tian,

Pan

et al. 2023

Animals

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The habitat plays a crucial role in ensuring the survival of wildlife. However, the increasing disturbances caused by human activities present a substantial threat to habitats, especially for species such as the leopard cat (Prionailurus bengalensis), which is a significant small predator. Currently, research on leopard cats predominantly focuses on low-altitude regions within its distribution range, leaving plateau areas understudied. To enhance our understanding of the impact of human disturbances on leopard cat habitats, we undertook a study employing infrared camera trappings to monitor leopard cats’ activity in Xinlong of southwestern China between 2015 and 2023. We analyzed the spatial distribution and habitat suitability of the leopard cats by utilizing ensemble species distribution models (ESDMs). Moreover, we employed two-species occupancy models to investigate the spatial interaction between leopard cats and human disturbances. The results indicated that (1) the potential suitable habitat area for leopard cats encompassed approximately 1324.93 km2 (14.3%), primarily located along the banks of Yalong river. (2) The distribution of suitable habitat was predominantly influenced by competitors, specifically the yellow-throated marten (YTM), accounting for 52.4% of the influence, as well as environmental factors such as distance to water (DTW) at 12.0% and terrain roughness index (TRI) at 10.0%. Human interference, including cattle presence (4.6%), distance to road (DTD, 4.9%), and distance to settlement (DTS, 3.5%), had a limited impact on the habitat distribution. (3) Within a 5 km radius, habitat suitability increased with proximity to human settlements. (4) Leopard cats exhibited spatial independence from humans and domestic cattle (species interaction factor (SIF) = 1.00) while avoiding domestic horses (SIF = 0.76 ± 0.03). The relatively minor impact of human disturbances in Xinlong could be attributed to traditional cultural practices safeguarding wildlife and the leopard cat’s environmental adaptability. We recommend establishing a novel conservation paradigm based on the living dynamics of wildlife communities in Xinlong, thereby offering a more targeted approach to biodiversity preservation in the future.

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A Classification-Tree Analysis of Nesting Habitat in an Island Population of Northern Harriers

Cited by 5 publications

References 12 publications

Breeding habitat and nest‐site selection by an obligatory “nest‐cleptoparasite”, the Amur FalconFalco amurensis

Breeding habitat and nest‐site selection by an obligatory “nest‐cleptoparasite”, the Amur FalconFalco amurensis

Establishing a protected area network in Xinlong with other effective area‐based conservation measures

The Minimal Impact of Anthropogenic Disturbances on the Spatial Activities of Leopard Cats in Xinlong, China

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