Results 11 to 20 of about 115,578 (104)

Variación intraespecífica e individual de los pelos de mamíferos del Estado de México: implicaciones en la identificación interespecífica [PDF]

Ciencia Ergo Sum, 2005
Se determinó la variación del pelo de guardia dorsal entre individuos de la misma especie y se comparó la variación de un individuo en diferentes regiones.
Octavio Monroy-Vilchis, Carla García-Morales |, Ricardo Rubio-Rodríguez, Anuar David Hernández-Saint Martín, Juan Pablo Medina-Castro, Ulises Aguilera-Reyes, Andrea I. Ortiz-García   +6 more
doaj   +3 more sources

An elevational gradient in floral traits and pollinator assemblages in the Neotropical species Costus guanaiensis var. tarmicus in Peru. [PDF]

Ecol Evol, 2023
We analyzed floral traits and pollinator assemblages in the Neotropical species Costus guanaiensis var. tarmicus along a steep elevational gradient in Peru. Results show floral traits and pollinator assemblage variation along the elevational gradient. We examined our results considering two hypotheses: (1) local adaptation to different bee assemblages ...
Maguiña-Conde R, Zuñiga-Rivas D, Kay KM.   +2 more
europepmc   +2 more sources

Variación geográfica de Ninia atrata en Colombia (Colubridae: Dipsadinae)

Papéis Avulsos de Zoologia, 2009
Se describe la variación y distribución geográfica de Ninia atrata en Colombia basada en 128 ejemplares de mas de 24 localidades. Los ejemplares colombianos presentan un alto grado de polimorfismo en su coloración, mostrando una clara diferencia entre ...
Teddy G. Angarita-Sierra
doaj   +2 more sources

Measuring maternal line selection driven by differential survival in ex situ collections for plant conservation. [PDF]

Conserv Biol
Abstract Ex situ plant collections may be increasingly needed to protect representative samples of threatened or rare species and provide plant material for conservation translocation. A primary problem in these ex situ collections is loss of intraspecific variation due to plant death. Different management actions would be required depending on whether
Sucher R, AuBuchon-Elder T, Thomas G, Collins M, Rea A, Martin L, Jiménez I.   +6 more
europepmc   +2 more sources

Comunicació intraespecífica en insectes [PDF]

, 2011
Pràctiques d’Etologia i Evolució de la ConductaAquest document conté el guió de pràctiques " Comunicació intraespecífica en insectes", un manual d'ús del programari a utilitzar en les pràctiques i guia del ...
Dolado i Guivernau, Ruth, Gimeno Rosell, Elisabet   +1 more
core   +8 more sources

Variation in responses to temperature in admixed Populus genotypes predicts geographic shifts in regions where hybrids are favored. [PDF]

New Phytol
Summary Plastic responses of plants to their environment vary as a result of genetic differentiation within and among species. To accurately predict rangewide responses to climate change, it is necessary to characterize genotype‐specific reaction norms across the continuum of historic and future climate conditions comprising a species' range. The North
Mead A, Beasley-Bennett JR, Bleich A, Fischer D, Flint S, Golightly J, Kalcsits L, Klopf SK, Kulbaba MW, Lasky JR, LeBoldus JM, Lowry DB, Mitchell N, Moran E, Sexton JP, Søndreli KL, Worthing B, Zavala-Paez M, Fitzpatrick MC, Holliday J, Keller S, Hamilton JA.   +21 more
europepmc   +2 more sources

Beyond species means - the intraspecific contribution to global wood density variation. [PDF]

New Phytol
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fischer FJ, Chave J, Zanne A, Jucker T, Fajardo A, Fayolle A, de Lima RAF, Vieilledent G, Beeckman H, Hubau W, De Mil T, Wallenus D, Aldana AM, Alvarez-Dávila E, Alves LF, Apgaua DMG, Arcanjo F, Bastin JF, Bilous A, Birnbaum P, Blyshchyk V, Borah J, Boukili V, Camarero JJ, Casas L, Cazzolla Gatti R, Chambers JQ, Fabiano EC, Choat B, Conti G, Cornwell W, Dar JA, Das AK, Dobler M, Dougabka D, Edwards DP, Evans R, Falster D, Fearnside P, Flores O, Fyllas N, Gérard J, Goodman RC, Guibal D, Henao-Diaz LF, Hervé V, Hietz P, Homeier J, Ibanez T, Ilic J, Jansen S, Kalita RM, Kenzo T, Kindermann L, Kothandaraman S, Kotowska M, Kubota Y, Langbour P, Lawson J, de Lima ALA, Link RM, Linstädter A, López R, Macinnis-Ng C, Magnago LFS, Martin AR, Matheny AM, McCarthy JK, Miller RB, Nath AJ, Nelson BW, Njana M, Nogueira EM, Oliveira A, Oliveira R, Olson M, Onoda Y, Paul K, Piotto D, Radtke P, Razafindratsima O, Ramananantoandro T, Read J, Richardson S, de la Riva EG, Rodríguez-Reyes O, Rolim SG, Rolo V, Rosell JA, Salguero-Gómez R, Santini NS, Schuldt B, Schwendenmann L, Sellin A, Staples T, Stevenson PR, Sundarapandian S, van der Sande MT, Thibaut B, Tng DYP, Torezan JMD, Villanueva B, Weiskittel A, Wells J, Wright SJ, Zieminska K.   +105 more
europepmc   +2 more sources

A low-cost protocol for the optical method of vulnerability curves to calculate <i>P</i> ₅₀. [PDF]

Appl Plant Sci
Abstract Premise The quantification of plant drought resistance, particularly embolism formation, within and across species, is critical for ecosystem management and agriculture. We developed a cost‐effective protocol to measure the water potential at which 50% of hydraulic conductivity (P50) is lost in stems, using affordable and accessible materials ...
González-Rebeles G, Alonso-Arevalo MÁ, López E, Méndez-Alonzo R.   +3 more
europepmc   +2 more sources

Variación intraespecífica de Carollia brevicaudum y Carollia perspicillata (Phyllostomidae: Chiroptera) de Perú y Ecuador

, 2022
Los murciélagos colicortos Carollia brevicaudum y C. perspicillata son dos de las especies de filostómidos más abundantes y ampliamente distribuidos en el Neotrópico.
Dennisse Ruelas (13005564), Víctor Pacheco (5832527)   +1 more
core   +1 more source

Revisiting two dogmas of conservation science

Conservation Biology, Volume 37, Issue 4, August 2023., 2023
Abstract Conservation science is a morally motivated field, with implicit and explicit values built into its practice. As such, conservationists must engage with conservation ethics to interrogate underlying values. We examine cutting‐edge ecological science and contemporary ethics to revisit two conservation norms that have become dogmatic in the ...
Kristy M. Ferraro, Anthony L. Ferraro, A. Z. Andis Arietta, Nathalie R. Sommer   +3 more
wiley   +1 more source