The Peninsula Effect: Habitat-Correlated Species Decline in Florida's Herpetofauna

Means, D. Bruce; Simberloff, Daniel

doi:10.2307/2844880

Cited by 57 publications

(53 citation statements)

References 27 publications

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“…In addition to the CAP analysis, fungal similarity among different collections sites (N-C-S) was calculated using Sørenson's similarity index (Sørenson 1948;Magurran 1988Magurran , 2004.…”

Section: Latitudinal Distributionmentioning

confidence: 99%

Latitudinal, habitat and substrate distribution patterns of freshwater ascomycetes in the Florida Peninsula

2008

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Freshwater ascomycetes are important decomposers of dead woody and herbaceous debris in aquatic habitats. Despite evidence of their ecological importance, latitudinal, habitat and substrate distributional patterns of freshwater ascomycetes are poorly understood. In this study, we examined the latitudinal and habitat distributional patterns, and substrate recurrences of freshwater ascomycetes by collecting dead submerged woody and herbaceous debris in lentic and lotic habitats at five selected sites along a north-central-south, temperate-subtropical latitudinal ecotone in Florida. One hundred and thirty-two fungal taxa were collected during the study. Seventy-four were meiosporic and 56 were mitosporic ascomycetes, while two species were basidiomycetes. Canonical analyses of principal coordinates (CAP) and Sørenson's similarity index of species based on presence/absence data revealed a high turnover in species composition between the northern and southern sites, indicating a change in species composition along the temperate-subtropical latitudinal ecotone of the Florida Peninsula. Results from the ordination analysis indicated that freshwater ascomycete community composition is not significantly different between lentic and lotic habitats in Florida. The geographically broadly distributed species and species commonly found in Florida occurred in both habitats, whereas a number of new or rare species occurred in either lentic or lotic habitats, but not both. The same freshwater ascomycete species did not necessarily occur on both woody and herbaceous debris; of the 132 taxa collected, 100 were reported only on woody debris; 14 species occurred exclusively on herbaceous debris; and 18 species were found on both woody and herbaceous debris in lentic or lotic habitats. Implications of data from this study to the conservation and knowledge of biodiversity for freshwater ascomycetes is discussed.

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Section: Latitudinal Distributionmentioning

confidence: 99%

Latitudinal, habitat and substrate distribution patterns of freshwater ascomycetes in the Florida Peninsula

2008

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“…This decrease may be a result of lower surface contact area between the base of the peninsular region and attached landmass due to reduced number of biotopes or lower dispersion rates. Several examples of this effect have been proposed elsewhere in the world (Taylor and Regal 1978, Brown 1987, Means and Simberloff 1987. Further evidence of this effect with regards to the Masoala Peninsula include the presence of the poorly known Microgale dryas Jenkins, 1992 in the Makira Forest at the base of the Masoala Peninsula (V. Andrianjakarivelo et al, unpubl.…”

Section: Speciesmentioning

confidence: 99%

The terrestrial small mammals of the Parc National de Masoala, northeastern Madagascar

2005

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“…This number however, undoubtedly underestimates the number of species present in the park, making comparisons difficult. This lack of documented species at Palo Verde and indeed along the entire Nicoya Peninsula precludes identification of a gradient in species richness that could be attributed to peninsula effects (Simpson 1964;Seib 1980;Busack and Hedges 1984;Means and Simberloff, 1987).…”

Section: ----------------mentioning

confidence: 99%

Amphibians and reptiles from Reserva Natural Absoluta Cabo Blanco, province of Puntarenas, Costa Rica

Laurencio¹

2009

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A survey of the amphibians and reptiles of Reserva Natural Absoluta Cabo Blanco (RNACB), Puntarenas, Costa Rica was conducted from May to August 2003. Thirteen amphibian and 19 reptile species were found within the RNACB boundaries. Twenty-two of these species were not previously recorded from the lower Nicoya Peninsula and for seven, this locality represents the southernmost extension of their range. One additional amphibian and three reptile species are known from the area based on literature review and examination of museum collections. However, interviews with locals indicate that up to nine other reptile species could be present in the reserve. I observed all but one amphibian species at Laguna Balsitas and at least eight species utilize the lagoon for reproduction. The lagoon is also notable for its population of Kinosternon scorpioides. This study will provide a baseline for further research in the reserve.

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The Peninsula Effect: Habitat-Correlated Species Decline in Florida's Herpetofauna

Cited by 57 publications

References 27 publications

Latitudinal, habitat and substrate distribution patterns of freshwater ascomycetes in the Florida Peninsula

Latitudinal, habitat and substrate distribution patterns of freshwater ascomycetes in the Florida Peninsula

The terrestrial small mammals of the Parc National de Masoala, northeastern Madagascar

Amphibians and reptiles from Reserva Natural Absoluta Cabo Blanco, province of Puntarenas, Costa Rica

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