Multi-Scale Habitat Partitioning in Sympatric Suiforms

Gabor, Timothy M.; Hellgren, Eric C.; Silvy, Nova J.

doi:10.2307/3803281

Cited by 31 publications

(27 citation statements)

References 40 publications

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“…Other studies have failed to demonstrate temporal partitioning or to establish ecological significance relating to interspecific competition (e.g., Cameron et al 1979, Gabor et al 2001, Kasoma 2000, Saiful et al 2001, Saunders & Barclay 1992. However, it would be impossible to assess the prevalence of partitioning on the diel time axis on the basis of current evidence.…”

Section: Temporal Partitioning Between Potentially Competing Taxamentioning

confidence: 77%

Partitioning of Time as an Ecological Resource

Kronfeld‐Schor

Dayan

2003

Annu. Rev. Ecol. Evol. Syst.

743

684

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s Abstract Animal species have evolved different diel activity rhythms that are of adaptive value. Theory suggests that diel temporal partitioning may facilitate coexistence between competitors and between predators and prey. However, relatively few studies demonstrate a temporal shift that is predation-or competition-induced. Recorded shifts are usually within the preferred activity phase of animal species (day or night), although there are some inversions to the opposite phase cycle. Temporal partitioning is not perceived as a common mechanism of coexistence. This rarity has been variously ascribed to theoretical considerations and to the rigidity of time-keeping mechanisms, as well as to other physiological and anatomical traits that may constrain activity patterns. Our decade-long study of spiny mice of rocky deserts demonstrates that, while different factors select for activity patterns, endogenous rhythmicity may be an evolutionary constraint.

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Section: Temporal Partitioning Between Potentially Competing Taxamentioning

confidence: 77%

Partitioning of Time as an Ecological Resource

Kronfeld‐Schor

Dayan

2003

Annu. Rev. Ecol. Evol. Syst.

743

684

View full text Add to dashboard Cite

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“…Private landowners, state and federal agencies, and nongovernmental organizations are increasingly faced with the challenge of reducing feral swine damage on their properties cost-effectively. Corn and other grains (both fresh and soured) are widely used as bait in feral swine management (e.g., Matschke 1962, Belden and Frankenberger 1977, Foreyt and Glazener 1979 and research (e.g., Ilse and Hellgren 1995, Gabor et al 2001, Wyckoff et al 2005. However, bait consumption by nontarget animals is often high (Hartin 2006), which both directly (e.g., bait loss) and indirectly (e.g., person-hr spent) increases the cost of management.…”

mentioning

confidence: 99%

Mammalian Visitation to Candidate Feral Swine Attractants

Campbell

Long

2008

J Wildl Manag

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Few data exist regarding suitable feral swine (Sus scrofa) attractants in the United States. We compared species‐specific visitation and contact rates of mammals to 11 candidate feral swine attractants at scent stations using motion‐sensing digital photography to identify promising attractants. We found feral swine had greater visitation rates to apple and strawberry stations than to control stations. We recommend managers consider using strawberry attractants for feral swine‐specific applications. If, however, a general feral swine attractant is needed, then apple, berry, or caramel attractants may perform well.

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“…In each sample season we surveyed sign stations for 11 consecutive weeks. We considered 11 weeks an adequate length of time to obtain repeated surveys and yet short enough so that seasonal shifts in range and habitat use would not result in change in residence status of sign stations (Gabor et al 2001, MacKenzie et al 2002. We examined stations on foot for presence or non-presence of peccary sign (tracks and feces) that was 1 week old.…”

Section: Methodsmentioning

confidence: 99%

“…We conducted sign surveys at the 61.5-km 2 Chaparral Wildlife Management Area (CMWA) in Dimmitt and La Salle counties, south Texas. The landscape was composed of a mix of thorn-shrub habitats that varied from 100% canopy closure to grasslands with small clumps of mesquite (Gabor et al 2001, Longoria 2004. Soils comprised a mix of clay, sand, and loam (Correll and Johnston 1970).…”

Section: Study Areamentioning

confidence: 99%

Estimating Detection Probabilities from Sign of Collared Peccary

Longoria

Weckerly

2007

J Wildl Manag

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Determining presence or absence of collared peccaries (Pecari tajacu) from surveys of sign (tracks and feces) requires information on whether animals in sample units are detected. We estimated detection probabilities of collared peccary from sign surveys using occupancy models. Because it was unlikely that residence status of collared peccary in sampling units remained the same over a survey season, which is a primary assumption of occupancy models, we first determined the time interval for which to pool data. We then examined the influence of rainfall and peccary abundance on detection probabilities. We placed 90 sign stations (25‐m‐diam circular plots) throughout Chaparral Wildlife Management Area, south Texas, USA. We surveyed plots weekly for the presence or non‐presence of collared peccary during 2 11‐week sampling seasons in spring and fall 2003. We examined sign data weekly and we pooled the data in intervals from 2 weeks to 5 weeks. Estimates of detection probabilities increased from 1 week to 3 weeks of pooled data and leveled off thereafter. We needed a 3‐week time interval to meet the assumption of unchanging residence status. Using sign data pooled in 3‐week increments, detection probabilities were influenced by areas that differed in peccary abundance, but they were not influenced by rainfall. Estimates of detection probabilities ranged from 0.43 to 0.77 for 3‐week time intervals. Sign surveys and occupancy modeling of data can be used to measure spatial patterns of collared peccary in south Texas as long as multiple 3‐week time intervals are sampled.

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Multi-Scale Habitat Partitioning in Sympatric Suiforms

Cited by 31 publications

References 40 publications

Partitioning of Time as an Ecological Resource

Partitioning of Time as an Ecological Resource

Mammalian Visitation to Candidate Feral Swine Attractants

Estimating Detection Probabilities from Sign of Collared Peccary

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